letrozole has been researched along with Pregnancy in 365 studies
Pregnancy: The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.
| Excerpt | Relevance | Reference |
|---|---|---|
| "To evaluate the efficacy of combination treatment of letrozole and clomiphene citrate (CC) in comparison to that of letrozole alone to induce ovulation in infertile women with polycystic ovary syndrome (PCOS)." | 9.69 | A triple-blind, randomized controlled trial, comparing combined letrozole and clomiphene versus only letrozole for ovulation induction in women with polycystic ovarian syndrome. ( Hota, S; Kalidoss, VK; Panda, SR; Sharmila, V, 2023) |
| " In total, 1078 women with PCOS will be randomised (1:1) to the letrozole-stimulated or HRT group in their first FET cycle and their pregnancy and perinatal outcomes during this cycle will be followed up and analysed." | 9.69 | Live birth after letrozole-stimulated cycles versus hormone replacement treatment cycles for the first frozen embryo transfer in women with polycystic ovary syndrome: protocol for a multicentre randomised controlled trial. ( Deng, B; Feng, YR; Gong, F; Li, Y; Lin, G; Ma, Y; Wang, X; Wu, Y; Zhang, C; Zhang, S, 2023) |
| "We conducted a prospective randomised controlled trial to explore the efficacy of clomiphene citrate (CC) and Letrozole (LTZ) for improving fecundity in infertile women with minimal to mild endometriosis after operative laparoscopy." | 9.51 | Ovulation induction with clomiphene citrate or letrozole following laparoscopy in infertile women with minimal to mild endometriosis: a prospective randomised controlled trial. ( Chen, H; Fu, J; Huang, W; Liu, D; Wang, Q; Yang, S; Zhou, L, 2022) |
| "To estimate the effect of letrozole and clomiphene citrate in women with infertility and polycystic ovarian syndrome (PCOS)." | 9.41 | Letrozole Compared With Clomiphene Citrate for Polycystic Ovarian Syndrome: A Systematic Review and Meta-analysis. ( Geng, Y; Hu, R; Huang, Y; Li, F; Liu, Z; Song, Y; Zhang, M, 2023) |
| "To compare the efficacy of letrozole and clomiphene citrate (CC) for ovulation induction in infertile women with polycystic ovarian syndrome (PCOS)." | 9.41 | Letrozole versus clomiphene citrate for ovulation induction in anovulatory women with polycystic ovarian syndrome: A randomized controlled trial. ( Bansal, S; Goyal, M; Sharma, C; Shekhar, S, 2021) |
| "To study the feasibility of a randomized controlled trial (RCT) comparing intrauterine insemination (IUI) with and without letrozole in couples with unexplained or mild male factor infertility STUDY DESIGN: We performed a randomized pilot study including 100 couples with unexplained or mild male factor infertility in the Reproductive Medicine Centre of Peking University Third Hospital in China." | 9.41 | Intrauterine insemination (IUI) with or without letrozole for unexplained or mild male factor infertility: A randomized pilot study. ( Huang, S; Li, N; Li, R; Luo, L; Mol, BWJ; Norman, RJ; Qiao, J; Wang, H; Wang, L; Wang, R; Yan, H, 2021) |
| "To compare the effects of letrozole and human menopausal gonadotropin (HMG) in the treatment of patients with polycystic ovary syndrome (PCOS) resistant to clomiphene citrate (CC)." | 9.34 | Letrozole and human menopausal gonadotropin for ovulation induction in clomiphene resistance polycystic ovary syndrome patients: A randomized controlled study. ( Chen, L; Hong, T; Huang, X; Jiang, F; Shi, S; Zhuang, Y, 2020) |
| " We have designed a multicenter randomized controlled trial (RCT) to evaluate whether personalized or fixed acupuncture increases the likelihood of live births in infertile women with polycystic ovary syndrome (PCOS) compared with letrozole or placebo letrozole." | 9.34 | A multicenter randomized trial of personalized acupuncture, fixed acupuncture, letrozole, and placebo letrozole on live birth in infertile women with polycystic ovary syndrome. ( Gao, X; Hu, M; Hu, R; Hu, Z; Huang, S; Lai, M; Li, J; Li, S; Liang, X; Liu, J; Ma, H; Ng, EHY; Qiao, J; Quan, K; Shang, H; Stener-Victorin, E; Wang, C; Wang, X; Wen, Q; Wen, X; Xia, T; Zheng, Y, 2020) |
| "Considering that clinical trial studies are limited in polycystic ovary syndrome (PCOS) patients, and there is no consensus on an optimum endometrial preparation protocol for frozen embryo transfer (FET), the present study was designed as a randomized clinical trial to compare the reproductive outcomes following stimulated cycles with letrozole plus human menopausal gonadotropin (HMG) for endometrial preparation compared with routine AC-FET." | 9.34 | The effect of letrozole versus artificial hormonal endometrial preparation on pregnancy outcome after frozen-thawed embryos transfer cycles: a randomized clinical trial. ( Farid Mojtahedi, M; Hosseini-Najarkolaee, E; Hosseini-Najarkolaei, A; Kashani, L; Moini, A; Salehi, E, 2020) |
| "To evaluate whether a combination of letrozole and clomiphene citrate (CC) results in higher ovulation rates than letrozole alone in infertile women with polycystic ovary syndrome (PCOS)." | 9.30 | A randomized controlled trial of combination letrozole and clomiphene citrate or letrozole alone for ovulation induction in women with polycystic ovary syndrome. ( Kresowik, JD; Mejia, RB; Summers, KM; Van Voorhis, BJ, 2019) |
| "The purpose is a comparison of effectiveness of myo-inositol and metformin in infertile women with polycystic ovary syndrome (PCOS) treated with letrozole." | 9.30 | The effectiveness of inositol and metformin on infertile polycystic ovary syndrome women with resistant to letrozole. ( Bazarganipour, F; Kutenaee, MA; Pourghasem, S; Taghavi, SA, 2019) |
| "A total of 202 patients with clomiphene citrate (CC) -resistant polycystic ovary syndrome (PCOS) were randomly allocated into two arms of induction of ovulation; the first group (n = 102) received CC 100 mg and metformin 500 mg while the second group (n = 100) received letrozole 2." | 9.27 | Clomiphene citrate combined with metformin versus letrozole for induction of ovulation in clomiphene-resistant polycystic ovary syndrome: a randomized clinical trial. ( Rezk, M; Saif El-Nasr, I; Shaheen, AE, 2018) |
| "To compare the therapeutic efficacy of clomiphene citrate (CC) and letrozole (LE) on ovulation, pregnancy, and live birth in women with polycystic ovary syndrome (PCOS); and to ensure if LE can replace CC as the first-line therapy for ovulation induction in these women." | 9.24 | Comparison of clomiphene citrate and letrozole for ovulation induction in women with polycystic ovary syndrome: a prospective randomized trial. ( Feng, G; Fu, J; Huang, W; Liu, C; Liu, D; Tan, J; Wang, Q; Yang, S, 2017) |
| "We aimed to compare the cost effectiveness of letrozole versus purified urinary follicle stimulating hormone (FSH) in treating patients with clomiphene citrate (CC)-resistant polycystic ovary syndrome (PCOS)." | 9.24 | Cost effectiveness of letrozole and purified urinary FSH in treating women with clomiphene citrate-resistant polycystic ovarian syndrome: a randomized controlled trial. ( Hassan, A; Shehata, N; Wahba, A, 2017) |
| "Letrozole appears to improve live birth rates and pregnancy rates in infertile women with anovulatory PCOS, compared to SERMs, when used for ovulation induction, followed by intercourse." | 9.22 | Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome. ( Farquhar, C; Franik, S; Kiesel, L; Kremer, JA; Le, QK, 2022) |
| "To investigate the optimal ovulation induction with the combination of combining letrozole(LE),clomiphene citrate (CC),and human menopausal gonadotropin (HMG) in polycystic ovary syndrome(PCOS) patients resistant to CC or LE." | 9.22 | [Optimal Ovulation Induction in Polycystic Ovary Syndrome Resistant to Clomiphene Citrate or Letrozole.] ( Chen, Y; Zhang, D, 2016) |
| "To evaluate the effects of letrozole and cabergoline in a rat model of ovarian hyperstimulation syndrome (OHSS)." | 9.22 | Comparison of the effects of letrozole and cabergoline on vascular permeability, ovarian diameter, ovarian tissue VEGF levels, and blood PEDF levels, in a rat model of ovarian hyperstimulation syndrome. ( Apaydın, N; Cengiz, H; Eskicioğlu, F; Genç, M; Şahin, N; Sivrikoz, ON; Töz, E; Turan, GA, 2016) |
| "To study whether a combination of berberine and letrozole results in higher live births than letrozole alone in infertile women with polycystic ovary syndrome (PCOS)." | 9.22 | Randomized controlled trial of letrozole, berberine, or a combination for infertility in the polycystic ovary syndrome. ( Liang, RN; Liu, JP; Ma, HX; Ng, EH; Shao, XG; Wang, YY; Wu, XK; Xue, HY, 2016) |
| "Clomiphene is the current first-line infertility treatment in women with the polycystic ovary syndrome, but aromatase inhibitors, including letrozole, might result in better pregnancy outcomes." | 9.19 | Letrozole versus clomiphene for infertility in the polycystic ovary syndrome. ( Alvero, R; Baker, V; Barnhart, KT; Bates, GW; Brzyski, RG; Casson, P; Christman, GM; Coutifaris, C; Diamond, MP; Eisenberg, E; Haisenleder, DJ; Huang, H; Krawetz, SA; Legro, RS; Lucidi, S; Ohl, D; Santoro, N; Schlaff, WD; Snyder, P; Trussell, JC; Usadi, R; Yan, Q; Zhang, H, 2014) |
| "The aim of the present study was to investigate the clinical value of low‑dose aspirin in combination with Tiao Jing Cu Yun pills in patients with polycystic ovary syndrome (PCOS) by measuring follicular peripheral blood flow parameters and the clinical efficacy." | 9.19 | Effects of combining low‑dose aspirin with a Chinese patent medicine on follicular blood flow and pregnancy outcome. ( Du, B; Jiang, X; Ma, M; Shi, L; Zhang, Q; Zhao, Y; Zhou, L, 2014) |
| "The expression of estrogen receptor-α (ERα) and progesterone receptor (PR) transcripts, as well as ERα protein, in placentae was suppressed by letrozole pretreatment in second trimester termination of pregnancy." | 9.17 | The effect of letrozole with misoprostol for medical termination of pregnancy on the expression of steroid receptors in the placenta. ( Gao, J; Ho, PC; Lee, KF; Lee, VC; Ng, EH; Yeung, WS, 2013) |
| " In this study, we used a combination of letrozole and clomiphene in patients resistant to both drugs individually, and studied the effects of this combination in ovulation and pregnancy in resistant PCOS patients." | 9.17 | Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome. ( Dehghan, M; Ghasemi-Rad, M; Hajishafiha, M; Kiarang, N; Sadegh-Asadi, N; Shayegh, SN, 2013) |
| "To compare the hormonal-metabolic profiles and reproductive outcomes between women receiving metformin plus letrozole and women undergoing bilateral ovarian drilling in clomiphene citrate (CC)-resistant women with polycystic ovary syndrome (PCOS)." | 9.17 | Efficacy of combined metformin-letrozole in comparison with bilateral ovarian drilling in clomiphene-resistant infertile women with polycystic ovarian syndrome. ( Abd Elgafor, I, 2013) |
| "The objective of this study was to compare the efficacy of letrozole versus clomiphene citrate as an ovulation induction drug in polycystic ovarian syndrome (PCOS) patients of Indian origin." | 9.16 | Comparison of efficacy of letrozole and clomiphene citrate in ovulation induction in Indian women with polycystic ovarian syndrome. ( Banerjee Ray, P; Chakraborti, PS; Ray, A, 2012) |
| "To evaluate pregnancy rates with letrozole and clomiphene citrate (CC) alone for superovulation in an intrauterine insemination program for women with recently surgically treated minimal to mild endometriosis." | 9.16 | Randomized comparison of superovulation with letrozole vs. clomiphene citrate in an IUI program for women with recently surgically treated minimal to mild endometriosis. ( Abd Elaal, I; Abu Hashim, H; El Rakhawy, M, 2012) |
| "We previously demonstrated that a sequential regimen of letrozole and misoprostol resulted in a marked reduction in the serum estradiol concentration and in a higher efficacy of first-trimester termination of pregnancy than misoprostol alone." | 9.16 | Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial. ( Ho, PC; Lee, VC; Ng, EH; Tang, OS; Yeung, TW; Yeung, WS, 2012) |
| "Our previous randomized controlled study showed that the complete abortion rate in termination of pregnancy up to 63 days with the combined use of letrozole for 3 days followed by vaginal misoprostol was significantly higher than that of misoprostol alone." | 9.16 | A pilot study on the use of a 7-day course of letrozole followed by misoprostol for the termination of early pregnancy up to 63 days. ( Ho, PC; Lee, VC; Ng, EH; Yeung, TW, 2012) |
| "To compare the role of an aromatase inhibitor (letrozole) with a GnRH agonist (triptorelin) versus case control on the pregnancy rate and recurrence of symptoms and signs in patients with endometriosis." | 9.15 | A comparison of the effect of short-term aromatase inhibitor (letrozole) and GnRH agonist (triptorelin) versus case control on pregnancy rate and symptom and sign recurrence after laparoscopic treatment of endometriosis. ( Alborzi, M; Alborzi, S; Dehbashi, S; Hamedi, B; Omidvar, A, 2011) |
| " We performed two pilot studies to assess the feasibility of using letrozole in combination with either mifepristone or misoprostol for termination of pregnancy up to 63 days." | 9.15 | A pilot study on the use of letrozole with either misoprostol or mifepristone for termination of pregnancy up to 63 days. ( Ho, PC; Lee, VC; Ng, EH; Tang, OS; Yeung, WS, 2011) |
| "To compare the success rate and side effects of letrozole and misoprostol versus misoprostol alone for medical termination of early pregnancy." | 9.15 | Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial. ( Ho, PC; Lee, VCY; Ng, EHY; Yeung, WSB, 2011) |
| "To compare the clinical outcomes of letrozole and laparoscopic ovarian drilling (LOD) in patients with clomiphene-citrate-resistant polycystic ovary syndrome (PCOS)." | 9.15 | Reproductive outcome after letrozole versus laparoscopic ovarian drilling for clomiphene-resistant polycystic ovary syndrome. ( Abdellah, MS, 2011) |
| "To evaluate the outcome of long letrozole therapy for induction of ovulation in patients with clomiphene-resistant polycystic ovary syndrome (PCOS)." | 9.14 | Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol. ( Badawy, A; Eid, M; Mosbah, A; Tharwat, A, 2009) |
| "To compare the effect of letrozole with laparoscopic ovarian diathermy (LOD) for ovulation induction in clomiphene citrate (CC) resistant women with polycystic ovary syndrome (PCOS)." | 9.14 | Letrozole versus laparoscopic ovarian diathermy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a randomized controlled trial. ( Abu Hashim, H; Badawy, A; Mashaly, AM, 2010) |
| "Meta-analysis was used to evaluate the efficacy and safety of aspirin combined with letrozole in the treatment of polycystic ovary syndrome (PCOS)." | 9.12 | Effectiveness and safety of aspirin combined with letrozole in the treatment of polycystic ovary syndrome: a systematic review and meta-analysis. ( Su, F; Wang, M; Wang, Z; Yu, Q, 2021) |
| "The objective of this systematic review was to examine the literature and to compare the effectiveness of letrozole (LE) versus laparoscopic ovarian drilling (LOD) for the induction of ovulation in women with clomiphene citrate (CC)-resistant polycystic ovary syndrome (PCOS)." | 9.01 | Letrozole versus laparoscopic ovarian drilling in clomiphene citrate-resistant women with polycystic ovary syndrome: a systematic review and meta-analysis of randomized controlled trials. ( Cheng, G; Hu, S; Wang, Y; Xia, W; Yu, Q; Zhu, C, 2019) |
| "The purpose of this systematic review was to evaluate the efficacy of pretreatment with letrozole prior to either a first- or second-trimester medical termination of pregnancy." | 8.98 | Letrozole pretreatment prior to medical termination of pregnancy: a systematic review. ( Murphy, KE; Nash, CM; Philp, L; Shah, P, 2018) |
| "Letrozole appears to improve live birth and pregnancy rates in subfertile women with anovulatory polycystic ovary syndrome, compared to clomiphene citrate." | 8.98 | Aromatase inhibitors (letrozole) for subfertile women with polycystic ovary syndrome. ( Eltrop, SM; Farquhar, C; Franik, S; Kiesel, L; Kremer, JA, 2018) |
| "The objective of the present systematic review and meta-analysis was to examine the literature and to identify the results of randomized controlled trials (RCTs) comparing the use of letrozole to clomiphene citrate (CC) for ovulation induction in patients with polycystic ovary syndrome (PCOS)." | 8.91 | Letrozole versus clomiphene citrate in polycystic ovary syndrome: systematic review and meta-analysis. ( Geber, S; Roque, M; Sampaio, M; Tostes, AC; Valle, M, 2015) |
| "Metformin, an insulin-sensitizing drug commonly used to treat Type 2 Diabetes Mellitus (T2DM), has been increasingly used off-label for the treatment of polycystic ovary syndrome (PCOS), which affects at least 5-10% of reproductive- age women." | 8.90 | The utility of metformin therapy in reproductive-aged women with polycystic ovary syndrome (PCOS). ( Nathan, N; Sullivan, SD, 2014) |
| "To assess the effects of tamoxifen or letrozole, in addition to standard COS protocols, on the breast cancer-free interval in premenopausal women with ER positive breast cancer who undergo COS for embryo or oocyte cryopreservation." | 8.89 | Tamoxifen or letrozole versus standard methods for women with estrogen-receptor positive breast cancer undergoing oocyte or embryo cryopreservation in assisted reproduction. ( Balkenende, E; Dahhan, T; Goddijn, M; Linn, S; van Wely, M, 2013) |
| "The aim of this study was to systematically compare the clinical efficacy and safety of letrozole with clomiphene citrate for ovulation induction in women with polycystic ovary syndrome (PCOS)." | 8.87 | Meta-analysis of letrozole versus clomiphene citrate in polycystic ovary syndrome. ( He, D; Jiang, F, 2011) |
| "To evaluate whether extending letrozole (LE) treatment duration could induce ovulation in women with polycystic ovary syndrome (PCOS) who previously failed to ovulate after a 5-day regimen of 5 mg LE daily for at least 1 ovulation induction cycle, defined as "LE resistance"." | 8.31 | Extending letrozole treatment duration is effective in inducing ovulation in women with polycystic ovary syndrome and letrozole resistance. ( Fu, Y; Zhu, X, 2023) |
| "No studies have been conducted on the impact of different types of ovulatory dysfunction on the outcomes of frozen-thawed embryo transfers (FETs) in a letrozole-stimulated cycle in women with polycystic ovarian syndrome (PCOS)." | 8.31 | Comparison of pregnancy outcomes of letrozole-induced frozen-thawed embryo transfer cycles in PCOS women with two different abnormal ovulation patterns: A retrospective cohort study. ( Cao, JX; Hou, JW; Jiang, WJ; Song, JY; Sun, ZG; Wang, DD; Yan, MH, 2023) |
| "To investigate the pregnancy and neonatal outcomes of letrozole-stimulated frozen embryo transfer (LTZ-FET) cycles compared with natural FET cycles (NC-FET)." | 8.31 | Pregnancy and neonatal outcomes of letrozole versus natural cycle frozen embryo transfer of autologous euploid blastocyst. ( Aghajanova, L; Bavan, B; Beshar, IE; Gardner, RM; Johal, JK; Lathi, RB; Milki, AA; Zhang, WY, 2023) |
| "To assess efficacy of adjuvant dexamethasone during letrozole cycles for ovulation induction (OI) in women with letrozole-resistant polycystic ovary syndrome (PCOS)." | 8.31 | Ovulation induction with letrozole and dexamethasone in infertile patients with letrozole-resistant polycystic ovary syndrome. ( Babayev, SN; Baumgarten, SC; Neblett, MF; Shenoy, CC, 2023) |
| " This study was performed to explore the relationship between follicle size, endometrial thickness, and types of ovarian stimulation (Clomiphene citrate/CC vs Letrozole) with biochemical pregnancy rate in women undergone IUI." | 8.31 | Association between follicle size, endometrial thickness, and types of ovarian stimulation (Clomiphene citrate and Letrozole) with biochemical pregnancy rate in women undergone intrauterine insemination. ( Krisnadi, SR; Nugrahani, AD; Rachmawati, A; Santoso, SA, 2023) |
| " Previous studies have shown that administration of letrozole, a non-steroidal aromatase inhibitor for cancer treatment, increased the clinical pregnancy rate in women with endometriosis, but the mechanisms remain to be determined." | 8.12 | Letrozole promotes the expression of integrin αvβ3 and HOXA10 in endometrium of endometriosis. ( Li, C; Li, M; Li, R; Wang, L; Zhang, H; Zhang, J, 2022) |
| "To evaluate and compare pregnancy outcomes between letrozole ovulation induction, natural, and programmed frozen-thawed embryo transfer (FET) cycles in a population based in the United States." | 8.12 | Pregnancy outcomes after frozen-thawed embryo transfer using letrozole ovulation induction, natural, or programmed cycles. ( Bartolucci, A; Benadiva, C; Engmann, L; Godiwala, P; Grady, J; Grow, D; Makhijani, R; Nulsen, J, 2022) |
| "To evaluate the efficacy and safety of gonadotropin-releasing hormone agonist (GnRHa) combined with a levonorgestrel-releasing intrauterine device (LNG-IUD) or aromatase inhibitor (letrozole) in women with endometrial carcinoma or atypical endometrial hyperplasia who wished to preserve fertility." | 8.12 | Oncological and reproductive outcomes for gonadotropin-releasing hormone agonist combined with aromatase inhibitors or levonorgestrel-releasing intra-uterine system in women with endometrial cancer or atypical endometrial hyperplasia. ( Cao, D; Chen, J; Cheng, N; Peng, P; Shen, K; Wang, J; Yang, J; Yu, M; Zhang, Y; Zhou, H, 2022) |
| "To investigate the efficacy of oral letrozole (LE) starting on day 3 or 5 of the menstrual cycle in patients with polycystic ovary syndrome (PCOS)." | 8.12 | Effect of different timing of letrozole initiation on pregnancy outcome in polycystic ovary syndrome. ( Chen, Y; Gao, M; Jin, X; Shi, L; Ye, S; Zhang, Z, 2022) |
| "This study aimed to investigate the impact of letrozole use during frozen embryo transfer cycles on obstetrical and perinatal outcomes of singleton and twin pregnancies compared with artificial frozen cycles among women with polycystic ovary syndrome." | 8.02 | Letrozole-induced frozen embryo transfer cycles are associated with a lower risk of hypertensive disorders of pregnancy among women with polycystic ovary syndrome. ( Bian, X; Mao, X; Wang, B; Wei, M; Wu, L; Zhang, J; Zhang, S, 2021) |
| "We sought to compare the efficacy of the letrozole (LTZ) stair-step protocol with clomiphene citrate (CC) stair-step protocol in the management of 150 mg dose of CC-resistant polycystic ovary syndrome (PCOS) patients." | 8.02 | Comparison of the efficacy of letrozole stair-step protocol with clomiphene citrate stair-step protocol in the management of clomiphene citrate-resistant polycystic ovary syndrome patients. ( Oğlak, SC; Sakar, MN, 2021) |
| "Children of women with polycystic ovary syndrome who conceived with letrozole (LTZ) or clomiphene (CC) in the PPCOS II study or women with unexplained infertility (AMIGOS study) who conceived with LTZ, CC, or gonadotropin (GN)." | 7.96 | Pregnancy registry: three-year follow-up of children conceived from letrozole, clomiphene, or gonadotropins. ( Alvero, R; Baker, V; Barnhart, KT; Casson, P; Cedars, MI; Christman, GM; Coutifaris, C; Coward, RM; Diamond, MP; Dodson, WC; Eisenberg, E; Estes, SJ; Hansen, KR; Huang, H; Krawetz, SA; Kunselman, A; Legro, RS; Robinson, R; Rosen, RM; Santoro, N; Schlaff, WD; Stetter, C; Trussell, JC; Usadi, R; Zhang, H, 2020) |
| "To study the use of the aromatase inhibitor letrozole for treatment of ectopic pregnancy compared with methotrexate." | 7.96 | Aromatase inhibitor letrozole: a novel treatment for ectopic pregnancy. ( Abdalla, KA; Abdalla, NK; Hassanin, KMA; Hozayen, WG; Mitwally, MF, 2020) |
| " This study aimed to investigate the clinical effect of letrozole use or hMG stimulation on pregnancy and neonatal outcomes in ovulatory patients undergoing FET." | 7.91 | Pregnancy And Neonatal Outcomes Of hMG Stimulation With Or Without Letrozole In Endometrial Preparation For Frozen-Thawed Embryo Transfer In Ovulatory Women: A Large Retrospective Cohort Study. ( Cai, R; Fan, Y; Huang, J; Kuang, Y; Lin, J; Wang, N; Wang, Y, 2019) |
| "To investigate whether live birth rate (LBR) following frozen-thawed embryo transfer in letrozole-stimulated cycles (L-FET) differs from LBR after artificial-cycle frozen-thawed embryos transfers (AC-FET) in women with polycystic ovary syndrome (PCOS)." | 7.91 | Letrozole use during frozen embryo transfer cycles in women with polycystic ovary syndrome. ( Chen, Q; Fan, Y; Kuang, Y; Liu, H; Mao, X; Wang, Y; Xiao, Y; Zhang, J, 2019) |
| "We compared sonographic findings, fertility results, pregnancy complications and congenital anomalies in two groups of women treated with letrozole and CC." | 7.88 | Comparison of the pregnancy outcomes and the incidence of fetal congenital abnormalities in infertile women treated with letrozole and clomiphene citrate. ( Akbari Sene, A; Ashrafi, M; Ghorbani, S, 2018) |
| "BACKGROUND Women with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization (IVF) are given letrozole before a trigger injection of human chorionic gonadotropin (hCG) to lower estrogen (E2) levels, but can experience ovarian hyperstimulation syndrome (OHSS)." | 7.88 | A Retrospective Study of Letrozole Treatment Prior to Human Chorionic Gonadotropin in Women with Polycystic Ovary Syndrome Undergoing In Vitro Fertilization at Risk of Ovarian Hyperstimulation Syndrome. ( Chen, Y; Hao, C; Yang, T; Zhao, J, 2018) |
| "This retrospective study investigated the efficacy and safety of letrozole for patients with polycystic ovary syndrome (PCOS)." | 7.88 | Letrozole for patients with polycystic ovary syndrome: A retrospective study. ( Guang, HJ; Li, F; Shi, J, 2018) |
| "Variable dose letrozole-FSH protocol can maintain lower peak estradiol levels and reduce estrogen exposure after breast cancer operation and chemotherapy." | 7.83 | Twin delivery after IVF-ET with variable dose letrozole-FSH protocol of lower estradiol in a patient previously treated for breast cancer: a case report. ( Diao, H; Hu, GZ; Zhang, CJ; Zhang, Y, 2016) |
| "To study the efficiency of letrozole, an aromatase inhibitor, in endometrial preparation for cryopreserved-thawed embryo transfer (FET) in women with polycystic ovarian syndrome (PCOS)." | 7.80 | Letrozole stimulation in endometrial preparation for cryopreserved-thawed embryo transfer in women with polycystic ovarian syndrome: a pilot study. ( Chen, YZ; Hu, YJ; Huang, HF; Zhu, YM, 2014) |
| "To assess the feasibility of adding letrozole to the standard regimen of mifepristone and misoprostol for termination of pregnancy up to 63 days." | 7.79 | A pilot study on the combined use of letrozole, mifepristone and misoprostol in termination of first trimester pregnancy up to 9 weeks' gestation. ( Chai, J; Ho, PC, 2013) |
| "Low-dose (LD, 150 IU; n = 34) versus high-dose (HD, >150 IU; n = 117) FSH start in 151 patients with breast cancer (BCa) undergoing ovarian stimulation for embryo cryopreservation with letrozole (LE) before cancer treatment." | 7.78 | Does higher starting dose of FSH stimulation with letrozole improve fertility preservation outcomes in women with breast cancer? ( Lee, S; Oktay, K, 2012) |
| "To determine the effect of intravaginal micronized P on pregnancy rates in clomiphene citrate and letrozole ovulation induction cycles in women with polycystic ovary syndrome (PCOS)." | 7.76 | Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction. ( Aubuchon, M; Khabbaz, M; Montville, CP; Thomas, MA; Williams, DB, 2010) |
| "Letrozole induction of ovulation in clomiphene citrate-resistant women with polycystic ovary syndrome is associated with an ovulation rate of 54." | 7.73 | Letrozole induction of ovulation in women with clomiphene citrate-resistant polycystic ovary syndrome may not depend on the period of infertility, the body mass index, or the luteinizing hormone/follicle-stimulating hormone ratio. ( Eldosoky, M; Elnashar, A; Fouad, H; Saeid, N, 2006) |
| "Letrozole, with lower incidences of LUF, is more effective than clomiphene citrate for the induction of ovulation in IUI cycles." | 6.80 | Effects of Letrozole-HMG and Clomiphene-HMG on Incidence of Luteinized Unruptured Follicle Syndrome in Infertile Women Undergoing Induction Ovulation and Intrauterine Insemination: A Randomised Trial. ( Akbari Asbagh, F; Azmoodeh, A; Ghaseminejad, A; Hamzehgardeshi, Z; Pejman Manesh, M, 2015) |
| " The aim of the study was to evaluate the effectiveness and efficacy of letrozole and clomiphene citrate (CC) combined with human menopausal gonadotropin (HMG) in CC-resistant infertile women with PCOS." | 6.80 | Use of letrozole and clomiphene citrate combined with gonadotropins in clomiphene-resistant infertile women with polycystic ovary syndrome: a prospective study. ( Liu, S; Lu, X; Mao, H; Xi, W; Xue, X; Yang, Y, 2015) |
| "letrozole for 5 treatment cycles (or approximately up to 25 weeks)." | 6.77 | The Pregnancy in Polycystic Ovary Syndrome II (PPCOS II) trial: rationale and design of a double-blind randomized trial of clomiphene citrate and letrozole for the treatment of infertility in women with polycystic ovary syndrome. ( Brzyski, RG; Casson, PR; Christman, GM; Coutifaris, C; Diamond, MP; Eisenberg, E; Kunselman, AR; Legro, RS; Santoro, N; Schlaff, WD; Taylor, HS; Zhang, H, 2012) |
| "To compare the efficacy of letrozole to recombinant FSH for ovarian stimulation combined with IUI in a group of patients that had failed to conceive after clomiphene citrate (CC) and IUI." | 6.73 | Randomized controlled trial comparing superovulation with letrozole versus recombinant follicle-stimulating hormone combined with intrauterine insemination for couples with unexplained infertility who had failed clomiphene citrate stimulation and intraute ( Botsis, D; Creatsas, GK; Gregoriou, O; Konidaris, S; Papadias, K; Vlahos, NF, 2008) |
| "PCOS patients with an increased LH/FSH ratio, AMH, FAI, and late menarche may need an increased dosage of LET for a treatment response, which could be helpful in designing a personalized treatment strategy." | 5.91 | Predictors of response to ovulation induction using letrozole in women with polycystic ovary syndrome. ( Chen, S; Chen, Z; Guo, Z; Hao, Y; Hu, P; Yu, Q, 2023) |
| "Letrozole (LE) has been found to improve the luteal function." | 5.91 | The effect of gonadotrophin-releasing hormone agonist versus human chorionic gonadotrophin trigger on pregnancy and neonatal outcomes in Letrozole-HMG IUI cycles. ( Chen, L; Gao, Y; Jiang, S; Kuang, Y; Long, H; Wang, Y; Xi, Q, 2023) |
| "8." | 5.91 | Letrozole-stimulated endometrial preparation protocol is a superior alternative to hormone replacement treatment for frozen embryo transfer in women with polycystic ovary syndrome, a cohort study. ( Cai, S; Gong, F; Guo, H; Li, X; Li, Y; Lin, G; Ma, S; Peng, Y; Tan, H; Tang, Y; Wang, X; Zhang, S, 2023) |
| "Letrozole treatment is considered an effective option in endometrial preparation for frozen embryo transfers in patients with ovulation disorders or irregular menstruation; however, the effectiveness of letrozole-induced endometrial preparation remains unclear in ovulatory patients." | 5.72 | Letrozole-induced endometrial preparation improved the pregnancy outcomes after frozen blastocyst transfer compared to the natural cycle: a retrospective cohort study. ( Ezoe, K; Fukuda, J; Kato, K; Shinohara, K; Takeshima, K, 2022) |
| "To evaluate the efficacy of combination treatment of letrozole and clomiphene citrate (CC) in comparison to that of letrozole alone to induce ovulation in infertile women with polycystic ovary syndrome (PCOS)." | 5.69 | A triple-blind, randomized controlled trial, comparing combined letrozole and clomiphene versus only letrozole for ovulation induction in women with polycystic ovarian syndrome. ( Hota, S; Kalidoss, VK; Panda, SR; Sharmila, V, 2023) |
| " In total, 1078 women with PCOS will be randomised (1:1) to the letrozole-stimulated or HRT group in their first FET cycle and their pregnancy and perinatal outcomes during this cycle will be followed up and analysed." | 5.69 | Live birth after letrozole-stimulated cycles versus hormone replacement treatment cycles for the first frozen embryo transfer in women with polycystic ovary syndrome: protocol for a multicentre randomised controlled trial. ( Deng, B; Feng, YR; Gong, F; Li, Y; Lin, G; Ma, Y; Wang, X; Wu, Y; Zhang, C; Zhang, S, 2023) |
| "Letrozole has been applied during controlled ovarian hyperstimulation (COH) to reduce the rate of OHSS in women undergoing long-term Gonadotropin-releasing Hormone Analog (GnRHa) treatment for assisted fertility." | 5.62 | Prednisone combined with letrozole reduced risk of ovarian hyperstimulation syndrome (OHSS) in women undergoing long-term gonadotropin-releasing hormone analog treatment. ( Chen, H; Cheng, J; Fang, L; Qu, X; Ruan, M; Yang, S; Zhao, J, 2021) |
| "Letrozole was associated with significantly higher clinical pregnancy (38." | 5.62 | Letrozole as first-line drug for ovulation induction in treatment-naïve infertile polycystic ovarian syndrome women. ( Joseph, T; Kamath, MS; Kunjummen, AT; Rebekah, G; Waanbah, BD, 2021) |
| "Clomiphene citrate (CC) and letrozole are ovulatory stimulants that, despite high ovulation rates, achieve low pregnancy rates." | 5.51 | The Effect of Clomiphene Citrate and Letrozole in Apoptotic Pathways and Cell Cycle in Human Primary Cumulus Cells and the Protective Effect of Estradiol. ( Aguiar, LPT; Coelho, SS; Del Puerto, HL; Ferreira, MCF; Moraes, LM; Oliveira, GG; Oliveira, RM; Prazeres, PHDM; Silveira, CO; Souza, FHS, 2022) |
| "Considering the presence of sexual dysfunction in patients with polycystic ovary syndrome, our aim was to provide scientific evidence studying effect of oral probiotic on sexual function in patients with PCOS treated with letrozole in an Iranian population." | 5.51 | Probiotic effects on sexual function in women with polycystic ovary syndrome: a double blinded randomized controlled trial. ( Azizi-Kutenaee, M; Bazarganipour, F; Heidari, S; Taghavi, SA, 2022) |
| "To examine the effect of letrozole on oocyte quality and pregnancy outcome in assisted reproductive technology (ART)." | 5.51 | The impact of letrozole on oocyte quality in assisted reproductive technology (ART); a randomized double-blind clinical trial. ( Amanpour, S; Bandarian, F; Bandarian, M; Hossein Rashidi, B; Shahrokh Tehraninejad, E, 2022) |
| "We conducted a prospective randomised controlled trial to explore the efficacy of clomiphene citrate (CC) and Letrozole (LTZ) for improving fecundity in infertile women with minimal to mild endometriosis after operative laparoscopy." | 5.51 | Ovulation induction with clomiphene citrate or letrozole following laparoscopy in infertile women with minimal to mild endometriosis: a prospective randomised controlled trial. ( Chen, H; Fu, J; Huang, W; Liu, D; Wang, Q; Yang, S; Zhou, L, 2022) |
| "Letrozole-treated patients required a significantly lower amount of gonadotropins units (p < 0." | 5.48 | Mild ovarian stimulation with letrozole plus fixed dose human menopausal gonadotropin prior to IVF/ICSI for infertile non-obese women with polycystic ovarian syndrome being pre-treated with metformin: a pilot study. ( Cantatore, C; Caringella, AM; Caroppo, E; D'Amato, G; Palini, S; Stanziano, A, 2018) |
| "To estimate the effect of letrozole and clomiphene citrate in women with infertility and polycystic ovarian syndrome (PCOS)." | 5.41 | Letrozole Compared With Clomiphene Citrate for Polycystic Ovarian Syndrome: A Systematic Review and Meta-analysis. ( Geng, Y; Hu, R; Huang, Y; Li, F; Liu, Z; Song, Y; Zhang, M, 2023) |
| "This review focuses on the efficacy of letrozole stimulated frozen-thawed embryo transfer (FET) compared to hormone replacement therapy (HRT) FET in women with polycystic ovarian syndrome (PCOS) and/or oligo-anovulation." | 5.41 | The future of frozen-thawed embryo transfer in hormone replacement therapy cycles. ( Asserhøj, LL; Dam, TV; Løssl, K; Pinborg, A; Spangmose, AL, 2023) |
| "To evaluate the effectiveness and safety of IVF versus expectant management, unstimulated intrauterine insemination (IUI), and IUI with ovarian stimulation using gonadotropins, clomiphene citrate (CC), or letrozole in improving pregnancy outcomes." | 5.41 | In vitro fertilisation for unexplained subfertility. ( Bhattacharya, S; Gibreel, A; Kamath, MS; Pandian, Z; Sunkara, SK, 2023) |
| "To compare the efficacy of letrozole and clomiphene citrate (CC) for ovulation induction in infertile women with polycystic ovarian syndrome (PCOS)." | 5.41 | Letrozole versus clomiphene citrate for ovulation induction in anovulatory women with polycystic ovarian syndrome: A randomized controlled trial. ( Bansal, S; Goyal, M; Sharma, C; Shekhar, S, 2021) |
| "To study the feasibility of a randomized controlled trial (RCT) comparing intrauterine insemination (IUI) with and without letrozole in couples with unexplained or mild male factor infertility STUDY DESIGN: We performed a randomized pilot study including 100 couples with unexplained or mild male factor infertility in the Reproductive Medicine Centre of Peking University Third Hospital in China." | 5.41 | Intrauterine insemination (IUI) with or without letrozole for unexplained or mild male factor infertility: A randomized pilot study. ( Huang, S; Li, N; Li, R; Luo, L; Mol, BWJ; Norman, RJ; Qiao, J; Wang, H; Wang, L; Wang, R; Yan, H, 2021) |
| "Letrozole is a potent, nonsteroidal, aromatase inhibitor, originally used for postmenopausal breast cancer therapy, at present its only registered indication." | 5.37 | Use of the aromatase inhibitor letrozole for ovulation induction in women with polycystic ovarian syndrome. ( Casper, RF; Mitwally, MF, 2011) |
| "To compare the effects of letrozole and human menopausal gonadotropin (HMG) in the treatment of patients with polycystic ovary syndrome (PCOS) resistant to clomiphene citrate (CC)." | 5.34 | Letrozole and human menopausal gonadotropin for ovulation induction in clomiphene resistance polycystic ovary syndrome patients: A randomized controlled study. ( Chen, L; Hong, T; Huang, X; Jiang, F; Shi, S; Zhuang, Y, 2020) |
| " We have designed a multicenter randomized controlled trial (RCT) to evaluate whether personalized or fixed acupuncture increases the likelihood of live births in infertile women with polycystic ovary syndrome (PCOS) compared with letrozole or placebo letrozole." | 5.34 | A multicenter randomized trial of personalized acupuncture, fixed acupuncture, letrozole, and placebo letrozole on live birth in infertile women with polycystic ovary syndrome. ( Gao, X; Hu, M; Hu, R; Hu, Z; Huang, S; Lai, M; Li, J; Li, S; Liang, X; Liu, J; Ma, H; Ng, EHY; Qiao, J; Quan, K; Shang, H; Stener-Victorin, E; Wang, C; Wang, X; Wen, Q; Wen, X; Xia, T; Zheng, Y, 2020) |
| "Considering that clinical trial studies are limited in polycystic ovary syndrome (PCOS) patients, and there is no consensus on an optimum endometrial preparation protocol for frozen embryo transfer (FET), the present study was designed as a randomized clinical trial to compare the reproductive outcomes following stimulated cycles with letrozole plus human menopausal gonadotropin (HMG) for endometrial preparation compared with routine AC-FET." | 5.34 | The effect of letrozole versus artificial hormonal endometrial preparation on pregnancy outcome after frozen-thawed embryos transfer cycles: a randomized clinical trial. ( Farid Mojtahedi, M; Hosseini-Najarkolaee, E; Hosseini-Najarkolaei, A; Kashani, L; Moini, A; Salehi, E, 2020) |
| "To evaluate whether a combination of letrozole and clomiphene citrate (CC) results in higher ovulation rates than letrozole alone in infertile women with polycystic ovary syndrome (PCOS)." | 5.30 | A randomized controlled trial of combination letrozole and clomiphene citrate or letrozole alone for ovulation induction in women with polycystic ovary syndrome. ( Kresowik, JD; Mejia, RB; Summers, KM; Van Voorhis, BJ, 2019) |
| "The purpose is a comparison of effectiveness of myo-inositol and metformin in infertile women with polycystic ovary syndrome (PCOS) treated with letrozole." | 5.30 | The effectiveness of inositol and metformin on infertile polycystic ovary syndrome women with resistant to letrozole. ( Bazarganipour, F; Kutenaee, MA; Pourghasem, S; Taghavi, SA, 2019) |
| "Almost all of the previous studies related with co-administration of letrozole in IVF cycles were performed in poor responders and letrozole may reduce the total gonadotropin dose required for ovarian stimulation, and the pregnancy rate did not decrease in poor responders." | 5.30 | Letrozole supplementation during controlled ovarian stimulation in expected high responders: a pilot randomized controlled study. ( Gong, F; Lin, G; Lu, G; Yang, X, 2019) |
| "A total of 202 patients with clomiphene citrate (CC) -resistant polycystic ovary syndrome (PCOS) were randomly allocated into two arms of induction of ovulation; the first group (n = 102) received CC 100 mg and metformin 500 mg while the second group (n = 100) received letrozole 2." | 5.27 | Clomiphene citrate combined with metformin versus letrozole for induction of ovulation in clomiphene-resistant polycystic ovary syndrome: a randomized clinical trial. ( Rezk, M; Saif El-Nasr, I; Shaheen, AE, 2018) |
| "To compare the therapeutic efficacy of clomiphene citrate (CC) and letrozole (LE) on ovulation, pregnancy, and live birth in women with polycystic ovary syndrome (PCOS); and to ensure if LE can replace CC as the first-line therapy for ovulation induction in these women." | 5.24 | Comparison of clomiphene citrate and letrozole for ovulation induction in women with polycystic ovary syndrome: a prospective randomized trial. ( Feng, G; Fu, J; Huang, W; Liu, C; Liu, D; Tan, J; Wang, Q; Yang, S, 2017) |
| "We aimed to compare the cost effectiveness of letrozole versus purified urinary follicle stimulating hormone (FSH) in treating patients with clomiphene citrate (CC)-resistant polycystic ovary syndrome (PCOS)." | 5.24 | Cost effectiveness of letrozole and purified urinary FSH in treating women with clomiphene citrate-resistant polycystic ovarian syndrome: a randomized controlled trial. ( Hassan, A; Shehata, N; Wahba, A, 2017) |
| " We included randomized controlled trials (RCTs) comparing IUI-OS with gonadotrophins, letrozole and CC among couples with unexplained infertility." | 5.22 | Ovarian stimulation strategies for intrauterine insemination in couples with unexplained infertility: a systematic review and individual participant data meta-analysis. ( Cohlen, BJ; D'Hooghe, TM; Danhof, NA; Dankert, T; Diamond, MP; Erdem, M; Legro, RS; Mochtar, MH; Mol, BWJ; Peeraer, K; Showell, M; Thyagaraju, C; van Eekelen, R; van Wely, M; Wang, R; Wessel, JA, 2022) |
| "Letrozole appears to improve live birth rates and pregnancy rates in infertile women with anovulatory PCOS, compared to SERMs, when used for ovulation induction, followed by intercourse." | 5.22 | Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome. ( Farquhar, C; Franik, S; Kiesel, L; Kremer, JA; Le, QK, 2022) |
| "To investigate the optimal ovulation induction with the combination of combining letrozole(LE),clomiphene citrate (CC),and human menopausal gonadotropin (HMG) in polycystic ovary syndrome(PCOS) patients resistant to CC or LE." | 5.22 | [Optimal Ovulation Induction in Polycystic Ovary Syndrome Resistant to Clomiphene Citrate or Letrozole.] ( Chen, Y; Zhang, D, 2016) |
| "To evaluate the effects of letrozole and cabergoline in a rat model of ovarian hyperstimulation syndrome (OHSS)." | 5.22 | Comparison of the effects of letrozole and cabergoline on vascular permeability, ovarian diameter, ovarian tissue VEGF levels, and blood PEDF levels, in a rat model of ovarian hyperstimulation syndrome. ( Apaydın, N; Cengiz, H; Eskicioğlu, F; Genç, M; Şahin, N; Sivrikoz, ON; Töz, E; Turan, GA, 2016) |
| "To study whether a combination of berberine and letrozole results in higher live births than letrozole alone in infertile women with polycystic ovary syndrome (PCOS)." | 5.22 | Randomized controlled trial of letrozole, berberine, or a combination for infertility in the polycystic ovary syndrome. ( Liang, RN; Liu, JP; Ma, HX; Ng, EH; Shao, XG; Wang, YY; Wu, XK; Xue, HY, 2016) |
| " A total of 750 infertile women with polycystic ovary syndrome (PCOS) were randomly assigned to up to receive five cycles of letrozole or clomiphene citrate." | 5.20 | Impact of Male and Female Weight, Smoking, and Intercourse Frequency on Live Birth in Women With Polycystic Ovary Syndrome. ( Allshouse, AA; Alvero, R; Casson, PR; Christman, GM; Coutifaris, C; Diamond, MP; Eisenberg, E; Krawetz, SA; Legro, RS; Polotsky, AJ; Santoro, N; Schlaff, WD; Trussell, JC; Zhang, H, 2015) |
| "Ovulation induction with letrozole during endometrial preparation for FET has a higher rate of pregnancy success and a lower abortion rate than HRT." | 5.19 | Letrozole ovulation induction: an effective option in endometrial preparation for frozen-thawed embryo transfer. ( Chai, XS; Chen, JL; Li, SJ; Nie, MF; Tao, GS; Zhang, YJ; Zhou, YY, 2014) |
| "Clomiphene is the current first-line infertility treatment in women with the polycystic ovary syndrome, but aromatase inhibitors, including letrozole, might result in better pregnancy outcomes." | 5.19 | Letrozole versus clomiphene for infertility in the polycystic ovary syndrome. ( Alvero, R; Baker, V; Barnhart, KT; Bates, GW; Brzyski, RG; Casson, P; Christman, GM; Coutifaris, C; Diamond, MP; Eisenberg, E; Haisenleder, DJ; Huang, H; Krawetz, SA; Legro, RS; Lucidi, S; Ohl, D; Santoro, N; Schlaff, WD; Snyder, P; Trussell, JC; Usadi, R; Yan, Q; Zhang, H, 2014) |
| "The aim of the present study was to investigate the clinical value of low‑dose aspirin in combination with Tiao Jing Cu Yun pills in patients with polycystic ovary syndrome (PCOS) by measuring follicular peripheral blood flow parameters and the clinical efficacy." | 5.19 | Effects of combining low‑dose aspirin with a Chinese patent medicine on follicular blood flow and pregnancy outcome. ( Du, B; Jiang, X; Ma, M; Shi, L; Zhang, Q; Zhao, Y; Zhou, L, 2014) |
| "The expression of estrogen receptor-α (ERα) and progesterone receptor (PR) transcripts, as well as ERα protein, in placentae was suppressed by letrozole pretreatment in second trimester termination of pregnancy." | 5.17 | The effect of letrozole with misoprostol for medical termination of pregnancy on the expression of steroid receptors in the placenta. ( Gao, J; Ho, PC; Lee, KF; Lee, VC; Ng, EH; Yeung, WS, 2013) |
| " In this study, we used a combination of letrozole and clomiphene in patients resistant to both drugs individually, and studied the effects of this combination in ovulation and pregnancy in resistant PCOS patients." | 5.17 | Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome. ( Dehghan, M; Ghasemi-Rad, M; Hajishafiha, M; Kiarang, N; Sadegh-Asadi, N; Shayegh, SN, 2013) |
| "To compare the hormonal-metabolic profiles and reproductive outcomes between women receiving metformin plus letrozole and women undergoing bilateral ovarian drilling in clomiphene citrate (CC)-resistant women with polycystic ovary syndrome (PCOS)." | 5.17 | Efficacy of combined metformin-letrozole in comparison with bilateral ovarian drilling in clomiphene-resistant infertile women with polycystic ovarian syndrome. ( Abd Elgafor, I, 2013) |
| "The objective of this study was to compare the efficacy of letrozole versus clomiphene citrate as an ovulation induction drug in polycystic ovarian syndrome (PCOS) patients of Indian origin." | 5.16 | Comparison of efficacy of letrozole and clomiphene citrate in ovulation induction in Indian women with polycystic ovarian syndrome. ( Banerjee Ray, P; Chakraborti, PS; Ray, A, 2012) |
| "To evaluate pregnancy rates with letrozole and clomiphene citrate (CC) alone for superovulation in an intrauterine insemination program for women with recently surgically treated minimal to mild endometriosis." | 5.16 | Randomized comparison of superovulation with letrozole vs. clomiphene citrate in an IUI program for women with recently surgically treated minimal to mild endometriosis. ( Abd Elaal, I; Abu Hashim, H; El Rakhawy, M, 2012) |
| "We previously demonstrated that a sequential regimen of letrozole and misoprostol resulted in a marked reduction in the serum estradiol concentration and in a higher efficacy of first-trimester termination of pregnancy than misoprostol alone." | 5.16 | Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial. ( Ho, PC; Lee, VC; Ng, EH; Tang, OS; Yeung, TW; Yeung, WS, 2012) |
| "Our previous randomized controlled study showed that the complete abortion rate in termination of pregnancy up to 63 days with the combined use of letrozole for 3 days followed by vaginal misoprostol was significantly higher than that of misoprostol alone." | 5.16 | A pilot study on the use of a 7-day course of letrozole followed by misoprostol for the termination of early pregnancy up to 63 days. ( Ho, PC; Lee, VC; Ng, EH; Yeung, TW, 2012) |
| "Letrozole has beneficial effect on endometrium, an action that may improve the implantation and pregnancy rates in women with unexplained infertility." | 5.16 | Letrozole versus clomiphene citrate for superovulation in Egyptian women with unexplained infertility: a randomized controlled trial. ( Abdel-Azeem, AA; Ibrahim, MI; Moustafa, RA, 2012) |
| "To compare the role of an aromatase inhibitor (letrozole) with a GnRH agonist (triptorelin) versus case control on the pregnancy rate and recurrence of symptoms and signs in patients with endometriosis." | 5.15 | A comparison of the effect of short-term aromatase inhibitor (letrozole) and GnRH agonist (triptorelin) versus case control on pregnancy rate and symptom and sign recurrence after laparoscopic treatment of endometriosis. ( Alborzi, M; Alborzi, S; Dehbashi, S; Hamedi, B; Omidvar, A, 2011) |
| " We performed two pilot studies to assess the feasibility of using letrozole in combination with either mifepristone or misoprostol for termination of pregnancy up to 63 days." | 5.15 | A pilot study on the use of letrozole with either misoprostol or mifepristone for termination of pregnancy up to 63 days. ( Ho, PC; Lee, VC; Ng, EH; Tang, OS; Yeung, WS, 2011) |
| "To compare the success rate and side effects of letrozole and misoprostol versus misoprostol alone for medical termination of early pregnancy." | 5.15 | Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial. ( Ho, PC; Lee, VCY; Ng, EHY; Yeung, WSB, 2011) |
| "To compare the clinical outcomes of letrozole and laparoscopic ovarian drilling (LOD) in patients with clomiphene-citrate-resistant polycystic ovary syndrome (PCOS)." | 5.15 | Reproductive outcome after letrozole versus laparoscopic ovarian drilling for clomiphene-resistant polycystic ovary syndrome. ( Abdellah, MS, 2011) |
| "To evaluate the outcome of long letrozole therapy for induction of ovulation in patients with clomiphene-resistant polycystic ovary syndrome (PCOS)." | 5.14 | Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol. ( Badawy, A; Eid, M; Mosbah, A; Tharwat, A, 2009) |
| "To compare the effect of letrozole with laparoscopic ovarian diathermy (LOD) for ovulation induction in clomiphene citrate (CC) resistant women with polycystic ovary syndrome (PCOS)." | 5.14 | Letrozole versus laparoscopic ovarian diathermy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a randomized controlled trial. ( Abu Hashim, H; Badawy, A; Mashaly, AM, 2010) |
| " The implantation and clinical pregnancy rates were higher in the MF group and the total cancellation rate was higher in the GnRH antagonist/letrozole group, but these findings were not statistically significant." | 5.14 | GnRH antagonist/letrozole versus microdose GnRH agonist flare protocol in poor responders undergoing in vitro fertilization. ( Ahmadi, S; Davar, R; Firouzabadi, RD; Oskouian, H, 2010) |
| "To compare the effectiveness of letrozole and clomiphene citrate (CC) in induction of ovulation in polycystic ovary syndrome (PCOS)." | 5.14 | Comparison of efficacy of aromatase inhibitor and clomiphene citrate in induction of ovulation in polycystic ovarian syndrome. ( Begum, A; Begum, MR; Ferdous, J; Quadir, E, 2009) |
| "The aim of this study was to determine the risks of congenital malformations and pregnancy loss with letrozole compared with clomiphene primarily, and with other fertility drugs and natural conception." | 5.12 | Risk of foetal harm with letrozole use in fertility treatment: a systematic review and meta-analysis. ( Achilli, C; Bhide, P; Coomarasamy, A; Legro, RS; Pundir, J; Rombauts, L; Sabatini, L; Teede, H; Thangaratinam, S; Zamora, J, 2021) |
| "Meta-analysis was used to evaluate the efficacy and safety of aspirin combined with letrozole in the treatment of polycystic ovary syndrome (PCOS)." | 5.12 | Effectiveness and safety of aspirin combined with letrozole in the treatment of polycystic ovary syndrome: a systematic review and meta-analysis. ( Su, F; Wang, M; Wang, Z; Yu, Q, 2021) |
| "5 mg, 5 mg of letrozole is associated with more follicles and a higher pregnancy rate." | 5.12 | A randomized trial of superovulation with two different doses of letrozole. ( Al-Fadhli, R; Buckett, W; Sylvestre, C; Tan, SL; Tulandi, T, 2006) |
| "Adding metformin to clomiphene citrate in clomiphene-resistant polycystic ovary syndrome (PCOS) patients increases ovulatory response." | 5.12 | Efficacy of combined metformin-letrozole in comparison with metformin-clomiphene citrate in clomiphene-resistant infertile women with polycystic ovarian disease. ( Ansari, Sh; Bagheri, M; Sohrabvand, F, 2006) |
| "Letrozole produced a comparable pregnancy rate vs." | 5.12 | Use of letrozole versus clomiphene citrate combined with gonadotropins in intrauterine insemination cycles: a pilot study. ( Jee, BC; Kim, KC; Kim, SH; Ku, SY; Lee, WD; Suh, CS, 2006) |
| "A low-cost stimulation protocol that includes letrozole and hMG in normal responders for assisted reproductive technologies resulted in a satisfactory ongoing pregnancy rate." | 5.12 | Preliminary experience with a low-cost stimulation protocol that includes letrozole and human menopausal gonadotropins in normal responders for assisted reproductive technologies. ( Grabia, A; Kopelman, S; Mlayes, L; Papier, S; Pesce, R; Sueldo, C, 2006) |
| "Superovulation and IUI with letrozole and CC are associated with similar pregnancy rates, but the miscarriage rate is higher with CC." | 5.11 | A randomized trial of letrozole versus clomiphene citrate in women undergoing superovulation. ( Al-Fozan, H; Al-Khadouri, M; Tan, SL; Tulandi, T, 2004) |
| " With letrozole treatment in the same patients with PCOS, ovulation occurred in 9 of 12 cycles (75%) and pregnancy was achieved in 3 patients (25%)." | 5.09 | Use of an aromatase inhibitor for induction of ovulation in patients with an inadequate response to clomiphene citrate. ( Casper, RF; Mitwally, MF, 2001) |
| " We included randomized controlled trials that compared a stimulation regimen with CC, Letrozole or gonadotrophins to each other or to natural cycle IUI among couples with unexplained infertility." | 5.05 | IUI for unexplained infertility-a network meta-analysis. ( Danhof, NA; Mochtar, MH; Mol, BWJ; van der Veen, F; van Wely, M; Wang, R, 2020) |
| "In women with PCOS, letrozole improves live birth and clinical pregnancy rates and reduces time-to-pregnancy compared to CC and therefore can be recommended as the preferred first-line treatment for women with PCOS and infertility." | 5.01 | First-line ovulation induction for polycystic ovary syndrome: an individual participant data meta-analysis. ( Amer, SA; Bhattacharya, S; Bordewijk, EM; Falbo, A; Federica, G; Gao, J; Homburg, R; Huang, W; Johnson, NP; Kar, S; König, TE; Legro, RS; Li, W; Lord, J; Mol, BW; Moll, E; Morin-Papunen, L; Nazik, H; Norman, RJ; Özmen, Ü; Palomba, S; Sahin, Y; van Wely, M; Vegetti, W; Wang, R; Williams, CD; Wu, X; Zhang, H, 2019) |
| "The objective of this systematic review was to examine the literature and to compare the effectiveness of letrozole (LE) versus laparoscopic ovarian drilling (LOD) for the induction of ovulation in women with clomiphene citrate (CC)-resistant polycystic ovary syndrome (PCOS)." | 5.01 | Letrozole versus laparoscopic ovarian drilling in clomiphene citrate-resistant women with polycystic ovary syndrome: a systematic review and meta-analysis of randomized controlled trials. ( Cheng, G; Hu, S; Wang, Y; Xia, W; Yu, Q; Zhu, C, 2019) |
| "To estimate the clinical effectiveness, as determined by positive pregnancy test, of letrozole compared with clomiphene citrate for ovarian stimulation in patients with unexplained infertility." | 5.01 | Letrozole Compared With Clomiphene Citrate for Unexplained Infertility: A Systematic Review and Meta-analysis. ( Bedrick, BS; Colditz, GA; Eskew, AM; Hardi, A; Jungheim, ES; Stoll, CRT; Tuuli, MG, 2019) |
| "The purpose of this systematic review was to evaluate the efficacy of pretreatment with letrozole prior to either a first- or second-trimester medical termination of pregnancy." | 4.98 | Letrozole pretreatment prior to medical termination of pregnancy: a systematic review. ( Murphy, KE; Nash, CM; Philp, L; Shah, P, 2018) |
| "Letrozole appears to improve live birth and pregnancy rates in subfertile women with anovulatory polycystic ovary syndrome, compared to clomiphene citrate." | 4.98 | Aromatase inhibitors (letrozole) for subfertile women with polycystic ovary syndrome. ( Eltrop, SM; Farquhar, C; Franik, S; Kiesel, L; Kremer, JA, 2018) |
| "We found no conclusive evidence indicating that clomiphene citrate or letrozole with or without gonadotropins differed from gonadotropins in GnRH agonist or antagonist protocols with respect to their effects on live-birth or pregnancy rates, either in the general population of women undergoing IVF treatment or in women who were poor responders." | 4.95 | Oral medications including clomiphene citrate or aromatase inhibitors with gonadotropins for controlled ovarian stimulation in women undergoing in vitro fertilisation. ( Bhattacharya, S; Gibreel, A; Kamath, MS; Lor, KY; Maheshwari, A, 2017) |
| "Randomised controlled trials comparing eight ovulation induction treatments in women with WHO group II anovulation: clomiphene, letrozole, metformin, clomiphene and metformin combined, tamoxifen, gonadotropins, laparoscopic ovarian drilling, and placebo or no treatment." | 4.95 | Treatment strategies for women with WHO group II anovulation: systematic review and network meta-analysis ( Bhattacharya, S; Costello, MF; Johnson, NP; Kim, BV; Legro, RS; Mol, BW; Ng, EH; Norman, RJ; van Wely, M; Wang, R; Zhang, H, 2017) |
| "The objective of the present systematic review and meta-analysis was to examine the literature and to identify the results of randomized controlled trials (RCTs) comparing the use of letrozole to clomiphene citrate (CC) for ovulation induction in patients with polycystic ovary syndrome (PCOS)." | 4.91 | Letrozole versus clomiphene citrate in polycystic ovary syndrome: systematic review and meta-analysis. ( Geber, S; Roque, M; Sampaio, M; Tostes, AC; Valle, M, 2015) |
| "Letrozole appears to improve live birth and pregnancy rates in subfertile women with anovulatory PCOS, compared to clomiphene citrate." | 4.90 | Aromatase inhibitors for subfertile women with polycystic ovary syndrome. ( Farquhar, C; Franik, S; Kremer, JA; Nelen, WL, 2014) |
| "Metformin, an insulin-sensitizing drug commonly used to treat Type 2 Diabetes Mellitus (T2DM), has been increasingly used off-label for the treatment of polycystic ovary syndrome (PCOS), which affects at least 5-10% of reproductive- age women." | 4.90 | The utility of metformin therapy in reproductive-aged women with polycystic ovary syndrome (PCOS). ( Nathan, N; Sullivan, SD, 2014) |
| "The objective of this study is to investigate and compare the effectiveness of letrozole and clomiphene citrate for improving fertility outcomes, including pregnancy rate, miscarriage rate, multiple pregnancy rate, and incidence rate of adverse events, number of dominant follicles, endometrial thickness at hCG day and serum E2 on hCG day." | 4.90 | Letrozole versus clomiphene citrate for unexplained infertility: a systematic review and meta-analysis. ( Chen, W; Lang, J; Liu, A; Zheng, C, 2014) |
| "To assess the effects of tamoxifen or letrozole, in addition to standard COS protocols, on the breast cancer-free interval in premenopausal women with ER positive breast cancer who undergo COS for embryo or oocyte cryopreservation." | 4.89 | Tamoxifen or letrozole versus standard methods for women with estrogen-receptor positive breast cancer undergoing oocyte or embryo cryopreservation in assisted reproduction. ( Balkenende, E; Dahhan, T; Goddijn, M; Linn, S; van Wely, M, 2013) |
| " The Pregnancy in PCOS trial II will determine the safety and efficacy of clomiphene citrate compared to letrozole, in achieving live birth in infertile women with PCOS." | 4.88 | Reproductive impact of polycystic ovary syndrome. ( Legro, RS; Usadi, RS, 2012) |
| "The aim of this study was to systematically compare the clinical efficacy and safety of letrozole with clomiphene citrate for ovulation induction in women with polycystic ovary syndrome (PCOS)." | 4.87 | Meta-analysis of letrozole versus clomiphene citrate in polycystic ovary syndrome. ( He, D; Jiang, F, 2011) |
| "Use of letrozole is associated with a higher chance of uncomplicated pregnancy and a lower risk of multiple pregnancy than clomiphene citrate." | 4.85 | [Ovulation induction by means of letrozole]. ( Ekerhovd, E, 2009) |
| "Ovulation induction with letrozole is associated with an ovulation rate of 70%-84% and a pregnancy rate of 20%-27% per cycle." | 4.83 | A new era in ovulation induction. ( Casper, R; Holzer, H; Tulandi, T, 2006) |
| "To evaluate whether extending letrozole (LE) treatment duration could induce ovulation in women with polycystic ovary syndrome (PCOS) who previously failed to ovulate after a 5-day regimen of 5 mg LE daily for at least 1 ovulation induction cycle, defined as "LE resistance"." | 4.31 | Extending letrozole treatment duration is effective in inducing ovulation in women with polycystic ovary syndrome and letrozole resistance. ( Fu, Y; Zhu, X, 2023) |
| "Women with severe adenomyosis would benefit from letrozole or a combination of GnRHa plus letrozole before receipt of treatment with assisted reproductive technology." | 4.31 | Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis. ( Cozzolino, M; Galliano, D; Pellicer, A; Pellicer, N, 2023) |
| "In letrozole OI cycles followed by IUI, lower LBRs and clinical pregnancy rates were found in women with lower E2 levels than in those with higher E2 levels at the 25th, 50th, and 75th percentile E2 level quartiles." | 4.31 | Live birth associated with peak serum estradiol levels in letrozole intrauterine insemination cycles. ( Devine, K; Imudia, AN; Jahandideh, S; Kodama, S; New, EP; Plosker, SM, 2023) |
| "No studies have been conducted on the impact of different types of ovulatory dysfunction on the outcomes of frozen-thawed embryo transfers (FETs) in a letrozole-stimulated cycle in women with polycystic ovarian syndrome (PCOS)." | 4.31 | Comparison of pregnancy outcomes of letrozole-induced frozen-thawed embryo transfer cycles in PCOS women with two different abnormal ovulation patterns: A retrospective cohort study. ( Cao, JX; Hou, JW; Jiang, WJ; Song, JY; Sun, ZG; Wang, DD; Yan, MH, 2023) |
| "To assess efficacy of adjuvant dexamethasone during letrozole cycles for ovulation induction (OI) in women with letrozole-resistant polycystic ovary syndrome (PCOS)." | 4.31 | Ovulation induction with letrozole and dexamethasone in infertile patients with letrozole-resistant polycystic ovary syndrome. ( Babayev, SN; Baumgarten, SC; Neblett, MF; Shenoy, CC, 2023) |
| " This study was performed to explore the relationship between follicle size, endometrial thickness, and types of ovarian stimulation (Clomiphene citrate/CC vs Letrozole) with biochemical pregnancy rate in women undergone IUI." | 4.31 | Association between follicle size, endometrial thickness, and types of ovarian stimulation (Clomiphene citrate and Letrozole) with biochemical pregnancy rate in women undergone intrauterine insemination. ( Krisnadi, SR; Nugrahani, AD; Rachmawati, A; Santoso, SA, 2023) |
| "To compare the characteristics and efficacy of progestin-primed ovarian stimulation (PPOS) protocol plus letrozole versus PPOS protocol alone for patients with normal ovarian function who received in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) assisted pregnancy treatment." | 4.12 | Progestin-primed ovarian stimulation protocol with or without letrozole for patients with normal ovarian reserve: a retrospective cohort study. ( Deng, K; Diao, H; Jiang, S; Jiang, X; Zhang, C, 2022) |
| " Previous studies have shown that administration of letrozole, a non-steroidal aromatase inhibitor for cancer treatment, increased the clinical pregnancy rate in women with endometriosis, but the mechanisms remain to be determined." | 4.12 | Letrozole promotes the expression of integrin αvβ3 and HOXA10 in endometrium of endometriosis. ( Li, C; Li, M; Li, R; Wang, L; Zhang, H; Zhang, J, 2022) |
| "The risks of pregnancy, livebirth, multiple gestation, preterm birth, neonatal intensive care unit (NICU) admission and congenital malformations were higher for letrozole compared with clomiphene in participants with polycystic ovarian syndrome (PCOS), though no treatment differences were observed in those with unexplained infertility." | 4.12 | Emulating a target trial of the comparative effectiveness of clomiphene citrate and letrozole for ovulation induction. ( Chiu, YH; Hernán, MA; Hernández-Díaz, S; Hsu, J; Rinaudo, P; Yland, JJ, 2022) |
| "Implantation rates, clinical pregnancy rates and live birth delivery rates were significantly higher in letrozole administered patients in comparison to controls among POSEIDON group 3 women (0." | 4.12 | Effects of letrozole co-treatment on outcomes of gonadotropin-releasing hormone antagonist cycles in POSEIDON groups 3 and 4 expected poor responders. ( Kahraman, A; Tulek, F, 2022) |
| " We retrospectively compared the pregnancy and neonatal outcomes after frozen single-blastocyst transfer with endometrial preparation by HRT regimen (n = 3540), ovulation induction by human menopausal gonadotropin (hMG) regimen (n = 226), and ovulation induction by letrozole regimen (n = 175)." | 4.12 | Ovulation induction regimens are associated with a higher rate of livebirth after frozen single-blastocyst transfer among women with polycystic ovary syndrome. ( Niu, Y; Suo, L; Wang, Y; Wei, D; Zhao, D; Zou, J, 2022) |
| "For infertile women with normal menstrual cycle undergoing FET, mildly stimulated cycles with letrozole present a relatively large advantage compared with HRT cycle and natural cycle, with higher live birth pregnancy, indicating that letrozole administration could improve pregnancy outcomes in this population." | 4.12 | Comparison of different endometrial preparation protocols on frozen embryo transfer pregnancy outcome in patients with normal ovulation. ( Bai, M; Chen, P; Lou, L; Lv, M; Xiao, Q; Xu, Y; Yu, J; Zhang, Z, 2022) |
| "To evaluate the efficacy and safety of gonadotropin-releasing hormone agonist (GnRHa) combined with a levonorgestrel-releasing intrauterine device (LNG-IUD) or aromatase inhibitor (letrozole) in women with endometrial carcinoma or atypical endometrial hyperplasia who wished to preserve fertility." | 4.12 | Oncological and reproductive outcomes for gonadotropin-releasing hormone agonist combined with aromatase inhibitors or levonorgestrel-releasing intra-uterine system in women with endometrial cancer or atypical endometrial hyperplasia. ( Cao, D; Chen, J; Cheng, N; Peng, P; Shen, K; Wang, J; Yang, J; Yu, M; Zhang, Y; Zhou, H, 2022) |
| "To investigate the efficacy of oral letrozole (LE) starting on day 3 or 5 of the menstrual cycle in patients with polycystic ovary syndrome (PCOS)." | 4.12 | Effect of different timing of letrozole initiation on pregnancy outcome in polycystic ovary syndrome. ( Chen, Y; Gao, M; Jin, X; Shi, L; Ye, S; Zhang, Z, 2022) |
| "To compare the effects of human menopausal gonadotropin (HMG) combined with letrozole (LE) to HMG only for ovarian stimulation on pregnancy outcome of infertile patients undergoing artificial insemination by husband (AIH) due to unexplained or mild male factors." | 4.12 | Retrospective analysis: The application of human menopausal gonadotropin combined with letrozole for IUI in patients undergoing artificial insemination by husband due to unexplained or mild male factors. ( Chen, JQ; Chen, XW; Li, HQ; Lu, XP; Pan, XL; Su, NJ, 2022) |
| "To evaluate the clinical effect of mild stimulation with letrozole on pregnancy outcomes in ovulatory women undergoing frozen embryo transfer (FET) compared to natural cycle." | 4.02 | Frozen Embryo Transfer in Mildly Stimulated Cycle With Letrozole Compared to Natural Cycle in Ovulatory Women: A Large Retrospective Study. ( Cai, R; Chen, Q; Huang, J; Khor, S; Kuang, Y; Li, D; Lu, X; Lyu, Q, 2021) |
| "The objective of this study was to examine the pregnancy outcomes from frozen embryo transfer (FET) cycles using different endometrial preparation regimens, compared to ovulation induction with letrozole (letrozole OI)." | 4.02 | Retrospective cohort study on preparation regimens for frozen embryo transfer. ( Atkinson, M; Crittenden, J; Sjoblom, C; Smith, H, 2021) |
| "This study aimed to investigate the impact of letrozole use during frozen embryo transfer cycles on obstetrical and perinatal outcomes of singleton and twin pregnancies compared with artificial frozen cycles among women with polycystic ovary syndrome." | 4.02 | Letrozole-induced frozen embryo transfer cycles are associated with a lower risk of hypertensive disorders of pregnancy among women with polycystic ovary syndrome. ( Bian, X; Mao, X; Wang, B; Wei, M; Wu, L; Zhang, J; Zhang, S, 2021) |
| "The combined Stop GnRH-ag, letrozole priming, and multiple-dose GnRH-ant COH protocol revealed significantly higher number of follicles >13 mm on the day of hCG administration and higher number of oocytes retrieved, with non-significantly more TQEs and a reasonable clinical pregnancy rate." | 4.02 | A Novel Stimulation Protocol for Poor-Responder Patients: Combining the Stop GnRH-ag Protocol with Letrozole Priming and Multiple-Dose GnRH-ant: A Proof of Concept. ( Aizer, A; Haas, J; Kirshenbaum, M; Nahum, R; Orvieto, R, 2021) |
| "Clinical data (patient baseline characteristics, sperm quality, hormonal status, and cycle data) from 1029 IUI procedures performed in 413 couples stimulated by clomiphene citrate, letrozole, or gonadotropins were used to build several models to predict clinical pregnancy." | 4.02 | Can methods of artificial intelligence aid in optimizing patient selection in patients undergoing intrauterine inseminations? ( Kovač, V; Kozar, N; Reljič, M, 2021) |
| "We sought to compare the efficacy of the letrozole (LTZ) stair-step protocol with clomiphene citrate (CC) stair-step protocol in the management of 150 mg dose of CC-resistant polycystic ovary syndrome (PCOS) patients." | 4.02 | Comparison of the efficacy of letrozole stair-step protocol with clomiphene citrate stair-step protocol in the management of clomiphene citrate-resistant polycystic ovary syndrome patients. ( Oğlak, SC; Sakar, MN, 2021) |
| "Children of women with polycystic ovary syndrome who conceived with letrozole (LTZ) or clomiphene (CC) in the PPCOS II study or women with unexplained infertility (AMIGOS study) who conceived with LTZ, CC, or gonadotropin (GN)." | 3.96 | Pregnancy registry: three-year follow-up of children conceived from letrozole, clomiphene, or gonadotropins. ( Alvero, R; Baker, V; Barnhart, KT; Casson, P; Cedars, MI; Christman, GM; Coutifaris, C; Coward, RM; Diamond, MP; Dodson, WC; Eisenberg, E; Estes, SJ; Hansen, KR; Huang, H; Krawetz, SA; Kunselman, A; Legro, RS; Robinson, R; Rosen, RM; Santoro, N; Schlaff, WD; Stetter, C; Trussell, JC; Usadi, R; Zhang, H, 2020) |
| " This article reports a case of successful ovulation induction and pregnancy with letrozole combined with HMG." | 3.96 | Successful live birth in a woman with resistant ovary syndrome treated with letrozole and HMG: A case report. ( Mu, Z; Song, J; Sun, Z; Yu, Y, 2020) |
| "To study the use of the aromatase inhibitor letrozole for treatment of ectopic pregnancy compared with methotrexate." | 3.96 | Aromatase inhibitor letrozole: a novel treatment for ectopic pregnancy. ( Abdalla, KA; Abdalla, NK; Hassanin, KMA; Hozayen, WG; Mitwally, MF, 2020) |
| " This study aimed to investigate the clinical effect of letrozole use or hMG stimulation on pregnancy and neonatal outcomes in ovulatory patients undergoing FET." | 3.91 | Pregnancy And Neonatal Outcomes Of hMG Stimulation With Or Without Letrozole In Endometrial Preparation For Frozen-Thawed Embryo Transfer In Ovulatory Women: A Large Retrospective Cohort Study. ( Cai, R; Fan, Y; Huang, J; Kuang, Y; Lin, J; Wang, N; Wang, Y, 2019) |
| "75 mg monthly (dep-GnRH-ag) and letrozole 5 mg daily improves pregnancy outcomes in patients with at least two unexplained failed embryo transfers (ETs) but without a previous diagnosis of endometriosis." | 3.91 | Management of recurrent implantation failure by gonadotropin-releasing hormone agonist and aromatase inhibitor suppression, in women without evidence of endometriosis. ( Dahan, MH; Elliott, B; Khayat, S, 2019) |
| "To investigate whether live birth rate (LBR) following frozen-thawed embryo transfer in letrozole-stimulated cycles (L-FET) differs from LBR after artificial-cycle frozen-thawed embryos transfers (AC-FET) in women with polycystic ovary syndrome (PCOS)." | 3.91 | Letrozole use during frozen embryo transfer cycles in women with polycystic ovary syndrome. ( Chen, Q; Fan, Y; Kuang, Y; Liu, H; Mao, X; Wang, Y; Xiao, Y; Zhang, J, 2019) |
| " Clinical pregnancy rates were higher among women who received GnRH agonist plus letrozole compared with women who received GnRH agonist only or women without pretreatment (63%, 42%, and 40%, respectively; P<." | 3.91 | Effect of GnRH agonist and letrozole treatment in women with recurrent implantation failure. ( Balayla, J; Dahan, MH; Dahan, SY; Shrem, G; Steiner, N; Tan, SL; Tannus, S; Volodarsky-Perel, A, 2019) |
| "In an IUI program for unexplained or mild male-factor infertility, ovarian stimulation with letrozole may significantly increase live birth rates while controlling multiple pregnancy rates." | 3.88 | Ovarian stimulation in infertile women treated with the use of intrauterine insemination: a cohort study from China. ( Huang, S; Li, R; Mol, BWJ; Qiao, J; Wang, H; Wang, R, 2018) |
| "We compared sonographic findings, fertility results, pregnancy complications and congenital anomalies in two groups of women treated with letrozole and CC." | 3.88 | Comparison of the pregnancy outcomes and the incidence of fetal congenital abnormalities in infertile women treated with letrozole and clomiphene citrate. ( Akbari Sene, A; Ashrafi, M; Ghorbani, S, 2018) |
| "BACKGROUND Women with polycystic ovary syndrome (PCOS) undergoing in vitro fertilization (IVF) are given letrozole before a trigger injection of human chorionic gonadotropin (hCG) to lower estrogen (E2) levels, but can experience ovarian hyperstimulation syndrome (OHSS)." | 3.88 | A Retrospective Study of Letrozole Treatment Prior to Human Chorionic Gonadotropin in Women with Polycystic Ovary Syndrome Undergoing In Vitro Fertilization at Risk of Ovarian Hyperstimulation Syndrome. ( Chen, Y; Hao, C; Yang, T; Zhao, J, 2018) |
| "This retrospective study investigated the efficacy and safety of letrozole for patients with polycystic ovary syndrome (PCOS)." | 3.88 | Letrozole for patients with polycystic ovary syndrome: A retrospective study. ( Guang, HJ; Li, F; Shi, J, 2018) |
| "We conclude that co-treatment with letrozole improves the IVF outcome in normal responders in terms of increased number of blastocysts obtained without increasing the pregnancy rate or the risk of OHSS." | 3.85 | Does daily co-administration of letrozole and gonadotropins during ovarian stimulation improve IVF outcome? ( Barzilay, E; Bassil, R; Casper, RF; Gonen, N; Haas, J; Meriano, J; Samara, N, 2017) |
| "To assess the effect of letrozole in combination with low dose gonadotropins for ovulation induction in anovulatory infertility from polycystic ovary syndrome (PCOS) and controlled ovarian stimulation for endometriosis, and unexplained infertility patients." | 3.85 | Ovulation induction and controlled ovarian stimulation using letrozole gonadotropin combination: A single center retrospective cohort study. ( Arya, S; Crisp, Z; Dwivedi, AK; Jose, J; Kupesic-Plavsic, S; Mulla, ZD; Noble, LS, 2017) |
| "In normo-ovulatory women undergoing TDI, OS with CC or letrozole resulted in similar live birth and twin pregnancy rates." | 3.85 | Clomiphene Citrate versus Letrozole for Ovarian Stimulation in Therapeutic Donor Sperm Insemination. ( Antaki, R; Bouet, PE; El Hachem, H; Kadoch, IJ; Lapensée, L; Sylvestre, C, 2017) |
| "The aim of this retrospective study was to determine the clinical pregnancy rate in women undergoing letrozole ovarian stimulation and artificial insemination by donor (AID)." | 3.85 | A retrospective analysis of ovarian stimulation with letrozole in women undergoing artificial insemination by donor. ( Chen, H; Ji, LC; Jiang, L; Jin, L; Nie, R; Qian, K; Sun, XJ; Zhu, GJ, 2017) |
| "Variable dose letrozole-FSH protocol can maintain lower peak estradiol levels and reduce estrogen exposure after breast cancer operation and chemotherapy." | 3.83 | Twin delivery after IVF-ET with variable dose letrozole-FSH protocol of lower estradiol in a patient previously treated for breast cancer: a case report. ( Diao, H; Hu, GZ; Zhang, CJ; Zhang, Y, 2016) |
| "We have previously reported an approach to ovarian stimulation for the purpose of fertility preservation (FP) in women with breast cancer via embryo freezing with the concurrent use of letrozole." | 3.81 | Fertility Preservation Success Subsequent to Concurrent Aromatase Inhibitor Treatment and Ovarian Stimulation in Women With Breast Cancer. ( Bedoschi, G; Moy, F; Oktay, K; Pacheco, FS; Turan, V, 2015) |
| "To study the efficiency of letrozole, an aromatase inhibitor, in endometrial preparation for cryopreserved-thawed embryo transfer (FET) in women with polycystic ovarian syndrome (PCOS)." | 3.80 | Letrozole stimulation in endometrial preparation for cryopreserved-thawed embryo transfer in women with polycystic ovarian syndrome: a pilot study. ( Chen, YZ; Hu, YJ; Huang, HF; Zhu, YM, 2014) |
| "To assess the feasibility of adding letrozole to the standard regimen of mifepristone and misoprostol for termination of pregnancy up to 63 days." | 3.79 | A pilot study on the combined use of letrozole, mifepristone and misoprostol in termination of first trimester pregnancy up to 9 weeks' gestation. ( Chai, J; Ho, PC, 2013) |
| "The clinical and biochemical pregnancy rate or live birth rate was higher in the letrozole OI group than in the other two groups." | 3.79 | Frozen embryo transfer: the present practice and beyond. ( Chatterjee, S; Chaudhuri, AR, 2013) |
| "Low-dose (LD, 150 IU; n = 34) versus high-dose (HD, >150 IU; n = 117) FSH start in 151 patients with breast cancer (BCa) undergoing ovarian stimulation for embryo cryopreservation with letrozole (LE) before cancer treatment." | 3.78 | Does higher starting dose of FSH stimulation with letrozole improve fertility preservation outcomes in women with breast cancer? ( Lee, S; Oktay, K, 2012) |
| "To compare occurrence of pregnancy among obese (body mass index [BMI] ≥30) and nonobese (BMI <30), infertile women undergoing ovulation induction with the aromatase inhibitor letrozole followed by intrauterine insemination (IUI)." | 3.77 | Body mass index-associated differences in response to ovulation induction with letrozole. ( Bates, GW; Chapman, VR; Cliver, SP; Cooper, JJ; McKnight, KK; Nodler, JL, 2011) |
| "To determine the effect of intravaginal micronized P on pregnancy rates in clomiphene citrate and letrozole ovulation induction cycles in women with polycystic ovary syndrome (PCOS)." | 3.76 | Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction. ( Aubuchon, M; Khabbaz, M; Montville, CP; Thomas, MA; Williams, DB, 2010) |
| "Letrozole is at least as effective as clomiphene for inducing ovulation and achieving pregnancy in patients with polycystic ovarian syndrome." | 3.75 | Letrozole versus clomiphene citrate: which is better for ovulation induction? ( Casper, RF, 2009) |
| "Pregnancy rates were comparable between the letrozole-FSH co-treatment group and the FSH alone group." | 3.75 | Letrozole co-treatment in infertile women 40 years old and older receiving controlled ovarian stimulation and intrauterine insemination. ( Bedaiwy, MA; Casper, R; Claessens, A; Esfandiari, N; Gotleib, L; Mousa, N; Shokry, M, 2009) |
| "The aim of this study was to examine the requirement of luteal progesterone or luteal estrogen for the establishment of pregnancy in the Cebus monkey and to test in a primate species the synergism between RU 486 and letrozole (LTZ) found in rodents for inhibiting implantation." | 3.74 | Progesterone, but not luteal estrogen, is required for the establishment of pregnancy in the new world monkey Cebus apella. ( Croxatto, HB; Garfield, R; Ortiz, ME; Ortiz, RE; Zepeda, AJ, 2007) |
| "To compare pregnancy rates (PR) for letrozole and gonadotropins in individuals who failed to conceive with clomiphene citrate (CC)." | 3.74 | A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate. ( Dahan, MH; Lathi, RB; Quintero, RB; Urban, R; Westphal, LM, 2007) |
| "The use of letrozole to induce ovulation has not been associated with an increased risk of a child being born with a birth defect; in contrast, the use of clomiphene citrate in pregnancy is associated with intrauterine growth restriction." | 3.74 | Is the use of letrozole to induce ovulation teratogenic? ( Gill, SK; Koren, G; Moretti, M, 2008) |
| "Letrozole induction of ovulation in clomiphene citrate-resistant women with polycystic ovary syndrome is associated with an ovulation rate of 54." | 3.73 | Letrozole induction of ovulation in women with clomiphene citrate-resistant polycystic ovary syndrome may not depend on the period of infertility, the body mass index, or the luteinizing hormone/follicle-stimulating hormone ratio. ( Eldosoky, M; Elnashar, A; Fouad, H; Saeid, N, 2006) |
| "The addition of letrozole to gonadotropins decreases gonadotropin requirements, increases the number of pre-ovulatory follicles and decreases endometrial thickness, without a negative effect on pregnancy rates." | 3.72 | Effects of letrozole on superovulation with gonadotropins in women undergoing intrauterine insemination. ( Biljan, MM; Healey, S; Tan, SL; Tulandi, T, 2003) |
| "The availability of CGS 16949A, CGS 20267 and CGP 47645, a series of aromatase inhibitors (AIs) having high specific activity and specificity, made possible this study wherein the need for estrogen (E) for regulating (a) follicular maturation/ovulation, luteal function and pregnancy establishment, and (b) testicular function of the bonnet monkey (Macaca radiata) has been examined." | 3.69 | Effect of estrogen deprivation on the reproductive physiology of male and female primates. ( Bhatnagar, S; Krishnamurthy, H; Krishnamurthy, HN; Moudgal, RN; Shetty, G, 1997) |
| "Does letrozole co-treatment during ovarian stimulation with gonadotrophins for IVF reduce the proportion of women with premature progesterone levels above 1." | 3.11 | Impact of letrozole co-treatment during ovarian stimulation with gonadotrophins for IVF: a multicentre, randomized, double-blinded placebo-controlled trial. ( Andersen, CY; Bülow, NS; Grøndahl, ML; Holt, MD; Macklon, NS; Mikkelsen, ALE; Nyboe Andersen, A; Pinborg, A; Skouby, SO; Sopa, N; Udengaard, H; Warzecha, AK, 2022) |
| "Equine pregnancy is characterized by very high circulating concentrations of estrogens." | 2.84 | Endocrine changes, fetal growth, and uterine artery hemodynamics after chronic estrogen suppression during the last trimester of equine pregnancy. ( Ball, BA; Esteller-Vico, A; Squires, EL; Troedsson, MHT, 2017) |
| "AIs may be effective in the treatment of male infertility." | 2.82 | Efficacy and safety of letrozole or anastrozole in the treatment of male infertility with low testosterone-estradiol ratio: A meta-analysis and systematic review. ( Guo, B; Li, JJ; Liu, JG; Ma, YL; Zhao, YT, 2022) |
| "There were no data on LBR or miscarriage with oral stimulation." | 2.82 | Luteal phase support for women trying to conceive by intrauterine insemination or sexual intercourse. ( Bofill Rodriguez, M; Lumbiganon, P; Martins, WP; Salang, L; Solà, I; Sothornwit, J; Teixeira, DM, 2022) |
| "Letrozole, with lower incidences of LUF, is more effective than clomiphene citrate for the induction of ovulation in IUI cycles." | 2.80 | Effects of Letrozole-HMG and Clomiphene-HMG on Incidence of Luteinized Unruptured Follicle Syndrome in Infertile Women Undergoing Induction Ovulation and Intrauterine Insemination: A Randomised Trial. ( Akbari Asbagh, F; Azmoodeh, A; Ghaseminejad, A; Hamzehgardeshi, Z; Pejman Manesh, M, 2015) |
| " The aim of the study was to evaluate the effectiveness and efficacy of letrozole and clomiphene citrate (CC) combined with human menopausal gonadotropin (HMG) in CC-resistant infertile women with PCOS." | 2.80 | Use of letrozole and clomiphene citrate combined with gonadotropins in clomiphene-resistant infertile women with polycystic ovary syndrome: a prospective study. ( Liu, S; Lu, X; Mao, H; Xi, W; Xue, X; Yang, Y, 2015) |
| "letrozole for 5 treatment cycles (or approximately up to 25 weeks)." | 2.77 | The Pregnancy in Polycystic Ovary Syndrome II (PPCOS II) trial: rationale and design of a double-blind randomized trial of clomiphene citrate and letrozole for the treatment of infertility in women with polycystic ovary syndrome. ( Brzyski, RG; Casson, PR; Christman, GM; Coutifaris, C; Diamond, MP; Eisenberg, E; Kunselman, AR; Legro, RS; Santoro, N; Schlaff, WD; Taylor, HS; Zhang, H, 2012) |
| "The letrozole group had lower dosage of HMG (P<0." | 2.76 | Sequential use of letrozole and gonadotrophin in women with poor ovarian reserve: a randomized controlled trial. ( Chan, CC; Ho, PC; Lee, VC; Ng, EH; Yeung, WS, 2011) |
| "The objective of this study was to test the use of letrozole in combination with follicle-stimulating hormone (FSH) vs clomiphene citrate (CC) with FSH for ovarian hyperstimulation prior to intrauterine insemination (IUI)." | 2.75 | Clomiphene citrate or aromatase inhibitors combined with gonadotropins for superovulation in women undergoing intrauterine insemination: a prospective randomised trial. ( Badawy, A; Elnashar, A; Totongy, M, 2010) |
| "The occurrence of pregnancy, miscarriage and neonatal condition." | 2.74 | Pregnancy outcome after ovulation induction with aromatase inhibitors or clomiphene citrate in unexplained infertility. ( Abdelhady, H; Allam, AF; Badawy, A; Shokeir, T, 2009) |
| "Letrozole appears to be a suitable ovulation inducing agent in PCOS women with CC failure and is found to be most effective when baseline estradiol level >60 pg/ml." | 2.74 | Comparison of letrozole with continuous gonadotropins and clomiphene-gonadotropin combination for ovulation induction in 1387 PCOS women after clomiphene citrate failure: a randomized prospective clinical trial. ( Chakravarty, B; Chattopadhyay, R; Chaudhury, K; Ganesh, A; Goswami, SK, 2009) |
| " In Group A, an aromatase inhibitor (letrozole, 5 mg/day) was administered along with a fixed dosage (450 IU/day) of recombinant FSH (rFSH), whereas Group B were treated with the same rFSH dosage alone." | 2.74 | Use of aromatase inhibitors in poor-responder patients receiving GnRH antagonist protocols. ( Atabekoglu, CS; Olmus, H; Ozmen, B; Sönmezer, M, 2009) |
| " A total of 179 patients were randomly recruited in this prospective study with 58, 61 and 60 patients in each dosage group respectively." | 2.73 | Randomized controlled trial of three doses of letrozole for ovulation induction in patients with unexplained infertility. ( Badawy, A; Fawzy, M; Metwally, M, 2007) |
| "To compare the efficacy of letrozole to recombinant FSH for ovarian stimulation combined with IUI in a group of patients that had failed to conceive after clomiphene citrate (CC) and IUI." | 2.73 | Randomized controlled trial comparing superovulation with letrozole versus recombinant follicle-stimulating hormone combined with intrauterine insemination for couples with unexplained infertility who had failed clomiphene citrate stimulation and intraute ( Botsis, D; Creatsas, GK; Gregoriou, O; Konidaris, S; Papadias, K; Vlahos, NF, 2008) |
| "Letrozole was administered at 5 mg/day from day 3 to day 7 of the IUI cycle." | 2.72 | Letrozole versus human menopausal gonadotrophin in women undergoing intrauterine insemination. ( Attar, E; Baysoy, A; Jamal, H; Karatekeli, E; Ozornek, H; Serdaroglu, H, 2006) |
| "Clinical pregnancy was higher in protocols with lax cancellation policies or higher gonadotropin doses, with subsequent increased relative risks of multiple gestations of 1." | 2.66 | Gonadotropins versus oral ovarian stimulation agents for unexplained infertility: a systematic review and meta-analysis. ( DeCherney, AH; Hill, MJ; Lindner, PG; Terry, N; Zolton, JR, 2020) |
| "For patients with POR, controlled ovarian stimulation protocols using adjuvant treatment with DHEA, CoQ10 and GH showed better clinical outcomes in terms of achieving pregnancy, and a lower dosage of gonadotrophin required for ovulation induction." | 2.66 | Adjuvant treatment strategies in ovarian stimulation for poor responders undergoing IVF: a systematic review and network meta-analysis. ( Chang, HM; Guo, J; Huang, H; Leung, PCK; Sheng, JZ; Shu, J; Zhang, C; Zhang, Y, 2020) |
| "Letrozole has no beneficial effect on the prevention of mild, moderate, and severe OHSS, individually; Letrozole should not be considered as the first-line treatment for prevention of OHSS." | 2.66 | Whether Letrozole could reduce the incidence of early ovary hyperstimulation syndrome after assisted reproductive technology? A systematic review and meta-analysis. ( Huang, X; Li, Y; Xu, B; Yan, Y; Zhao, J, 2020) |
| "Polycystic ovarian syndrome is the major cause of anovulation and is generally associated with obesity." | 2.48 | Evaluation and treatment of anovulatory and unexplained infertility. ( Bates, GW; Propst, AM, 2012) |
| "Breast cancer is the most frequent cancer in reproductive age women." | 2.44 | Assisted reproduction and breast cancer. ( Atabekoglu, C; Sonmezer, M, 2007) |
| " A shorter duration of stimulation and a lower dosage of recombinant FSH consumption on the day of human chorionic gonadotropin administration were all observed in the +LE group." | 1.91 | Effectiveness of letrozole in pituitary downregulated normogonadotrophic young women with an initial poor response. ( Bian, J; Ma, HG; Sun, N; Sun, PP; Zhang, YM, 2023) |
| "PCOS patients with an increased LH/FSH ratio, AMH, FAI, and late menarche may need an increased dosage of LET for a treatment response, which could be helpful in designing a personalized treatment strategy." | 1.91 | Predictors of response to ovulation induction using letrozole in women with polycystic ovary syndrome. ( Chen, S; Chen, Z; Guo, Z; Hao, Y; Hu, P; Yu, Q, 2023) |
| "Letrozole (LE) has been found to improve the luteal function." | 1.91 | The effect of gonadotrophin-releasing hormone agonist versus human chorionic gonadotrophin trigger on pregnancy and neonatal outcomes in Letrozole-HMG IUI cycles. ( Chen, L; Gao, Y; Jiang, S; Kuang, Y; Long, H; Wang, Y; Xi, Q, 2023) |
| "8." | 1.91 | Letrozole-stimulated endometrial preparation protocol is a superior alternative to hormone replacement treatment for frozen embryo transfer in women with polycystic ovary syndrome, a cohort study. ( Cai, S; Gong, F; Guo, H; Li, X; Li, Y; Lin, G; Ma, S; Peng, Y; Tan, H; Tang, Y; Wang, X; Zhang, S, 2023) |
| "Letrozole co-treatment significantly suppressed oestradiol and follicle-stimulating hormone concentrations from stimulation day 5 and onwards, while increasing luteinizing hormone levels on stimulation day 5 and trigger day." | 1.91 | Impact of 2.5 mg versus 5 mg letrozole co-treatment in an antagonist protocol for IVF: a retrospective study. ( Lin, J; Wang, B; Wu, F; Zhang, K; Zhu, Q; Zhu, Y, 2023) |
| "To ask lots of questions and try to find the truth about the medicine-based effectiveness of letrozole (LE) combined with human menopausal gonadotropin (HMG) in the treatment of inability to have children crops patients with endocrine (things that are different from what is usually expected and the effect on ovulation-related chemicals produced by the body)." | 1.72 | Efficacy of Letrozole Combined with Urinary Gonadotropin for Ovulation Induction in Endocrine Abnormal Infertility Patients: A Retrospective Single-Center, Case-Control Study. ( Luo, S; Mao, J; Peng, H; Wang, J; Yuan, B, 2022) |
| "Letrozole treatment is considered an effective option in endometrial preparation for frozen embryo transfers in patients with ovulation disorders or irregular menstruation; however, the effectiveness of letrozole-induced endometrial preparation remains unclear in ovulatory patients." | 1.72 | Letrozole-induced endometrial preparation improved the pregnancy outcomes after frozen blastocyst transfer compared to the natural cycle: a retrospective cohort study. ( Ezoe, K; Fukuda, J; Kato, K; Shinohara, K; Takeshima, K, 2022) |
| "The LzGA group had a lower dosage of follicular stimulating hormone (FSH) (p = 0." | 1.72 | Letrozole as an adjunct treatment in antagonist cycles that previously failed in poor responders. ( Biler, A; Demir, A; Kaçar, MT; Köse, C; Şahin Güleç, E, 2022) |
| "Letrozole has been applied during controlled ovarian hyperstimulation (COH) to reduce the rate of OHSS in women undergoing long-term Gonadotropin-releasing Hormone Analog (GnRHa) treatment for assisted fertility." | 1.62 | Prednisone combined with letrozole reduced risk of ovarian hyperstimulation syndrome (OHSS) in women undergoing long-term gonadotropin-releasing hormone analog treatment. ( Chen, H; Cheng, J; Fang, L; Qu, X; Ruan, M; Yang, S; Zhao, J, 2021) |
| "We reviewed charts of women with breast cancer who contacted the FP patient navigator (PN) at Northwestern University from 01/2005-01/2018." | 1.62 | Predictors and outcomes in breast cancer patients who did or did not pursue fertility preservation. ( Confino, R; Gradishar, WJ; Jeruss, JS; Kazer, RR; Klock, SC; Lawson, AK; Moravek, MB; Pavone, ME; Smith, KN, 2021) |
| "Letrozole was associated with significantly higher clinical pregnancy (38." | 1.62 | Letrozole as first-line drug for ovulation induction in treatment-naïve infertile polycystic ovarian syndrome women. ( Joseph, T; Kamath, MS; Kunjummen, AT; Rebekah, G; Waanbah, BD, 2021) |
| "Letrozole is an aromatase inhibitor that has an unapproved use for ovulation induction with infertility." | 1.51 | Misclassification in Assessment of First Trimester In-utero Exposure to Drugs Used Proximally to Conception: the Example of Letrozole Utilization for Infertility Treatment. ( Andrade, SE; Bird, ST; Gelperin, K; Hampp, C; Sahin, L; Song, J; Taylor, L; Toh, S, 2019) |
| "This study aims to evaluate the effects and pregnancy outcomes of gonadotropin-releasing hormone agonist (GnRH agonist) combined with aromatase inhibitor (AI) in preserving the fertility of obese women with grade 1 endometrial cancer (EC)." | 1.51 | A pilot study of gonadotropin-releasing hormone agonist combined with aromatase inhibitor as fertility-sparing treatment in obese patients with endometrial cancer. ( Cheng, N; Feng, F; Huang, H; Wang, J; Zhang, Z, 2019) |
| "Estrogen-dependent early stage endometrial cancer is relatively common in young women of reproductive age." | 1.48 | A successful live birth with in vitro fertilization and thawed embryo transfer after conservative treatment of recurrent endometrial cancer. ( Choi, YM; Kim, H; Kim, SH; Kim, SW; Ku, SY; Suh, CS, 2018) |
| "In a xenograft mouse model of endometrial cancer, concomitant AI administration suppressed the growth of endometrial cancer during ovarian stimulation." | 1.48 | Aromatase inhibitor use during ovarian stimulation suppresses growth of uterine endometrial cancer in xenograft mouse model. ( Ito, J; Kashiwagi, M; Kashiwazaki, N; Kawahara, T; Nakajima, M; Okamoto, N; Sugishita, Y; Suzuki, N; Takae, S; Uekawa, A, 2018) |
| "Letrozole-treated patients required a significantly lower amount of gonadotropins units (p < 0." | 1.48 | Mild ovarian stimulation with letrozole plus fixed dose human menopausal gonadotropin prior to IVF/ICSI for infertile non-obese women with polycystic ovarian syndrome being pre-treated with metformin: a pilot study. ( Cantatore, C; Caringella, AM; Caroppo, E; D'Amato, G; Palini, S; Stanziano, A, 2018) |
| "Melasma is an acquired disorder of pigmentation that presents with asymptomatic symmetric darkening of the face." | 1.46 | Melasma treatment: A novel approach using a topical agent that contains an anti-estrogen and a vascular endothelial growth factor inhibitor. ( Cohen, PR, 2017) |
| " Especially little is known about efficacy and safety of letrozole (LTZ) combined with low-dose highly purified human menopausal gonadotropin (Hp-HMG) in women with polycystic ovary syndrome (PCOS)." | 1.46 | Letrozole combined with low dose highly purified HMG for ovulation induction in clomiphene citrate-resistant infertile Chinese women with polycystic ovary syndrome: a prospective study. ( Mueck, AO; Ruan, X; Zhao, Y, 2017) |
| "Should the number of oocytes retrieved being higher in letrozole group might indicate that letrozole might contribute to successful ovarian stimulation with a lower dosage of gonadotropins." | 1.43 | Controlled ovarian hyperstimulation with sequential letrozole co-treatment in normo/high responders. ( Caglar, GS; Ecemis, T; Tasci, Y, 2016) |
| "This study aimed at comparing the effects of different methods of letrozole combined with gonadotropin (Gn) and high-dose Gn ovarian stimulation in antagonist protocol." | 1.43 | A comparison among different methods of letrozole combined with gonadotropin in an antagonist protocol and high-dose gonadotropin ovarian stimulation antagonist protocol in poor ovarian responders undergoing in vitro fertilization. ( Li, H; Li, R; Liu, P; Qiao, J; Yang, R, 2016) |
| "To evaluate the efficacy of minimal stimulation using discretely administered gonadotropin combined with clomiphene citrate (CC) or letrozole (LTZ) for intrauterine insemination (IUI) cycles." | 1.42 | Minimal stimulation using gonadotropin combined with clomiphene citrate or letrozole for intrauterine insemination. ( Cho, S; Choi, YS; Chon, SJ; Kim, SH; Lee, BS; Park, JH; Seo, SK; Yun, BH, 2015) |
| " Demographic and endocrine characteristics, the total number of oocytes retrieved, cancellation rate and clinical pregnancy rate were collected Results: Total dosage of gonadotropins (p=0." | 1.40 | The comparision of effect of microdose GnRH-a flare-up, GnRH antagonist/aromatase inhibitor letrozole and GnRH antagonist/clomiphene citrate protocols on IVF outcomes in poor responder patients. ( Bakacak, M; Ficicioglu, C; Kaspar, C; Kizilkale, O; Ozcan Cenksoy, P; Suhha Bostanci, M; Yesiladali, M, 2014) |
| "Pregnancy was recorded as clinical pregnancy with fetal heart activity seen at 6- to 7-week transvaginal ultrasound." | 1.38 | What is the optimal follicular size before triggering ovulation in intrauterine insemination cycles with clomiphene citrate or letrozole? An analysis of 988 cycles. ( Palatnik, A; Robb, P; Strawn, E; Szabo, A, 2012) |
| "Zoledronic acid was also shown to be more effective in inhibiting cell viability in aromatase transfected AC-1 cells when compared to inhibition of cell viability observed in non-transfected MCF-7." | 1.38 | Zoledronic acid inhibits aromatase activity and phosphorylation: potential mechanism for additive zoledronic acid and letrozole drug interaction. ( Brodie, AH; Nemieboka, BE; Schech, AJ, 2012) |
| "Letrozole is a potent, nonsteroidal, aromatase inhibitor, originally used for postmenopausal breast cancer therapy, at present its only registered indication." | 1.37 | Use of the aromatase inhibitor letrozole for ovulation induction in women with polycystic ovarian syndrome. ( Casper, RF; Mitwally, MF, 2011) |
| "Letrozole treatment at 18 days resulted in males that spent less time huddling over pups during the birth, and had higher pup losses and male-biased pup survival for the first litter." | 1.35 | Aromatase inhibition during adolescence reduces adult sexual and paternal behavior in the biparental dwarf hamster Phodopus campbelli. ( Timonin, ME; Wynne-Edwards, KE, 2008) |
| "In letrozole-treated baboons, serum estradiol levels were decreased by 95%." | 1.35 | Estrogen promotes germ cell and seminiferous tubule development in the baboon fetal testis. ( Albrecht, ED; Lane, MV; Marshall, GR; Merchenthaler, I; Pepe, GJ; Plant, TM; Pohl, CR; Simorangkir, DR, 2009) |
| "Letrozole is an effective drug for ovulation induction and superovulation." | 1.34 | Limiting access to letrozole--is it justified? ( DeCherney, AH; Tulandi, T, 2007) |
| "Letrozole-treated patients showed significantly higher levels of follicular fluid T and androstenedione (80." | 1.33 | The aromatase inhibitor letrozole increases the concentration of intraovarian androgens and improves in vitro fertilization outcome in low responder patients: a pilot study. ( Duque, L; Garcia-Velasco, JA; Guillén, A; Moreno, L; Pacheco, A; Pellicer, A; Requena, A, 2005) |
| "Although pregnancy was maintained in 19 of the 20 untreated control baboons (95%), only 12 of the 24 animals that received CGS 20267 (50%) maintained pregnancy." | 1.31 | The role of estrogen in the maintenance of primate pregnancy. ( Aberdeen, GW; Albrecht, ED; Pepe, GJ, 2000) |
| "Use of a breast cancer cell line (MCF-7) provided biologic confirmation of the role of aromatization in cell proliferation." | 1.30 | Macrophages, estrogen and the microenvironment of breast cancer. ( Berstein, LM; Diano, S; Eliza, M; Gutierrez, L; Harada, N; Lysiak, J; Mor, G; Naftolin, F; Santen, RJ; Wang, J; Yue, W, 1998) |
| Timeframe | Studies, this research(%) | All Research% |
|---|---|---|
| pre-1990 | 0 (0.00) | 18.7374 |
| 1990's | 4 (1.10) | 18.2507 |
| 2000's | 75 (20.55) | 29.6817 |
| 2010's | 170 (46.58) | 24.3611 |
| 2020's | 116 (31.78) | 2.80 |
| Authors | Studies |
|---|---|
| Ghosh, D | 1 |
| Lo, J | 1 |
| Morton, D | 1 |
| Valette, D | 1 |
| Xi, J | 1 |
| Griswold, J | 1 |
| Hubbell, S | 1 |
| Egbuta, C | 1 |
| Jiang, W | 1 |
| An, J | 1 |
| Davies, HM | 1 |
| Fang, L | 1 |
| Ruan, M | 1 |
| Yang, S | 3 |
| Qu, X | 1 |
| Chen, H | 3 |
| Zhao, J | 3 |
| Cheng, J | 1 |
| Misiakiewicz-Has, K | 1 |
| Pilutin, A | 1 |
| Wiszniewska, B | 1 |
| Li, D | 2 |
| Khor, S | 1 |
| Huang, J | 2 |
| Chen, Q | 3 |
| Lyu, Q | 4 |
| Cai, R | 2 |
| Kuang, Y | 9 |
| Lu, X | 3 |
| Bülow, NS | 3 |
| Skouby, SO | 3 |
| Warzecha, AK | 2 |
| Udengaard, H | 1 |
| Andersen, CY | 2 |
| Holt, MD | 2 |
| Grøndahl, ML | 2 |
| Nyboe Andersen, A | 1 |
| Sopa, N | 2 |
| Mikkelsen, ALE | 1 |
| Pinborg, A | 4 |
| Macklon, NS | 3 |
| Jiang, X | 2 |
| Jiang, S | 5 |
| Diao, H | 2 |
| Deng, K | 1 |
| Zhang, C | 4 |
| Haneda, S | 1 |
| Dini, P | 1 |
| Esteller-Vico, A | 2 |
| Scoggin, KE | 1 |
| Squires, EL | 2 |
| Troedsson, MH | 1 |
| Daels, P | 1 |
| Nambo, Y | 1 |
| Ball, BA | 2 |
| Asgharnia, M | 1 |
| Mehrafza, M | 1 |
| Raoufi, A | 1 |
| Zare Yousefi, T | 1 |
| Hosseinzadeh, E | 1 |
| Samadnia, S | 1 |
| Zahiri, Z | 1 |
| Tamimi, A | 1 |
| Hosseini, A | 1 |
| Zhang, J | 9 |
| Wang, L | 5 |
| Li, C | 3 |
| Zhang, H | 12 |
| Li, R | 6 |
| Li, M | 1 |
| Yland, JJ | 1 |
| Chiu, YH | 1 |
| Rinaudo, P | 1 |
| Hsu, J | 1 |
| Hernán, MA | 1 |
| Hernández-Díaz, S | 1 |
| Lin, HT | 1 |
| Wu, MH | 1 |
| Tsai, LC | 1 |
| Chen, TS | 1 |
| Ou, HT | 1 |
| Du, L | 1 |
| Li, RHW | 1 |
| Gemzell-Danielsson, K | 2 |
| Du, YH | 1 |
| Zhang, L | 3 |
| Diao, WY | 1 |
| Ho, PC | 11 |
| Atkinson, M | 1 |
| Crittenden, J | 1 |
| Smith, H | 1 |
| Sjoblom, C | 1 |
| Tu, X | 1 |
| You, B | 1 |
| Jing, M | 1 |
| Lin, C | 1 |
| Zhang, R | 2 |
| Dreyer Holt, M | 1 |
| Birch Petersen, K | 1 |
| Englund, ALM | 1 |
| Wang, F | 2 |
| Li, S | 3 |
| Meng, L | 1 |
| Liu, Z | 5 |
| Ma, X | 1 |
| Elgindy, EA | 1 |
| Abdelghany, AA | 1 |
| Sibai AbdAlsalam, H | 1 |
| Mostafa, MI | 1 |
| Leppänen, R | 1 |
| Tinkanen, H | 1 |
| Huhtala, H | 1 |
| Ahinko, K | 1 |
| Albrecht, ED | 17 |
| Aberdeen, GW | 6 |
| Babischkin, JS | 3 |
| Prior, SJ | 1 |
| Lynch, TJ | 4 |
| Baranyk, IA | 1 |
| Pepe, GJ | 17 |
| Guo, W | 1 |
| Li, HWR | 2 |
| Yang, Z | 1 |
| Zeng, L | 1 |
| Yang, R | 2 |
| Qiao, J | 6 |
| Ng, EHY | 4 |
| Zhang, W | 2 |
| Ren, B | 1 |
| Liu, M | 1 |
| Li, J | 5 |
| Guan, Y | 2 |
| Guo, B | 1 |
| Li, JJ | 1 |
| Ma, YL | 1 |
| Zhao, YT | 1 |
| Liu, JG | 1 |
| Zwiefelhofer, EM | 2 |
| Lillico, W | 1 |
| Adams, GP | 2 |
| Silveira, CO | 1 |
| Oliveira, RM | 1 |
| Moraes, LM | 1 |
| Oliveira, GG | 1 |
| Aguiar, LPT | 1 |
| Souza, FHS | 1 |
| Coelho, SS | 1 |
| Prazeres, PHDM | 1 |
| Del Puerto, HL | 1 |
| Ferreira, MCF | 1 |
| Wessel, JA | 1 |
| Danhof, NA | 2 |
| van Eekelen, R | 1 |
| Diamond, MP | 9 |
| Legro, RS | 17 |
| Peeraer, K | 1 |
| D'Hooghe, TM | 1 |
| Erdem, M | 2 |
| Dankert, T | 1 |
| Cohlen, BJ | 1 |
| Thyagaraju, C | 1 |
| Mol, BWJ | 5 |
| Showell, M | 1 |
| van Wely, M | 6 |
| Mochtar, MH | 2 |
| Wang, R | 7 |
| Balkenende, EME | 1 |
| Dahhan, T | 2 |
| Beerendonk, CCM | 1 |
| Fleischer, K | 1 |
| Stoop, D | 1 |
| Bos, AME | 1 |
| Lambalk, CB | 1 |
| Schats, R | 1 |
| Smeenk, JMJ | 1 |
| Louwé, LA | 1 |
| Cantineau, AEP | 1 |
| de Bruin, JP | 1 |
| Linn, SC | 1 |
| van der Veen, F | 2 |
| Goddijn, M | 2 |
| Aramesh, S | 1 |
| Azizi Kutenaee, M | 1 |
| Najafi, F | 1 |
| Ghaffari, P | 1 |
| Taghavi, SA | 3 |
| Kahraman, A | 1 |
| Tulek, F | 1 |
| Peng, H | 1 |
| Yuan, B | 1 |
| Mao, J | 1 |
| Wang, J | 5 |
| Luo, S | 1 |
| Godiwala, P | 1 |
| Makhijani, R | 1 |
| Bartolucci, A | 1 |
| Grow, D | 1 |
| Nulsen, J | 2 |
| Benadiva, C | 2 |
| Grady, J | 1 |
| Engmann, L | 2 |
| Salang, L | 1 |
| Teixeira, DM | 1 |
| Solà, I | 1 |
| Sothornwit, J | 1 |
| Martins, WP | 2 |
| Bofill Rodriguez, M | 1 |
| Lumbiganon, P | 1 |
| Niu, Y | 1 |
| Zhao, D | 1 |
| Wang, Y | 9 |
| Suo, L | 1 |
| Zou, J | 1 |
| Wei, D | 1 |
| Lou, L | 1 |
| Xu, Y | 1 |
| Lv, M | 1 |
| Yu, J | 1 |
| Xiao, Q | 1 |
| Chen, P | 1 |
| Bai, M | 1 |
| Zhang, Z | 4 |
| Azizi-Kutenaee, M | 1 |
| Heidari, S | 1 |
| Bazarganipour, F | 2 |
| Panda, SR | 1 |
| Sharmila, V | 1 |
| Kalidoss, VK | 1 |
| Hota, S | 1 |
| Chen, J | 3 |
| Dong, H | 1 |
| Ma, R | 1 |
| Zou, Y | 1 |
| Wang, W | 5 |
| Zheng, Q | 1 |
| Feng, Y | 1 |
| Tan, Z | 1 |
| Zeng, X | 1 |
| Zhao, Y | 5 |
| Deng, Y | 1 |
| Gu, B | 1 |
| Sun, A | 1 |
| Franik, S | 3 |
| Le, QK | 1 |
| Kremer, JA | 3 |
| Kiesel, L | 2 |
| Farquhar, C | 3 |
| Zhu, X | 2 |
| Fu, Y | 1 |
| Ezoe, K | 1 |
| Fukuda, J | 1 |
| Takeshima, K | 1 |
| Shinohara, K | 1 |
| Kato, K | 1 |
| Cao, D | 1 |
| Yang, J | 3 |
| Yu, M | 1 |
| Zhou, H | 2 |
| Cheng, N | 2 |
| Zhang, Y | 7 |
| Peng, P | 1 |
| Shen, K | 1 |
| Dilday, E | 3 |
| Gigg, M | 3 |
| Hoyos, L | 3 |
| Quinn, M | 3 |
| Markovic, D | 3 |
| Kroener, L | 3 |
| Cozzolino, M | 3 |
| Pellicer, N | 3 |
| Galliano, D | 3 |
| Pellicer, A | 4 |
| Chen, L | 6 |
| Xi, Q | 4 |
| Li, W | 4 |
| Furth, PA | 3 |
| Kang, K | 3 |
| Rooney, BL | 3 |
| Keegan, G | 3 |
| Muralidaran, V | 3 |
| Zou, X | 3 |
| Flaws, JA | 3 |
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| Ye, S | 2 |
| Gao, M | 2 |
| Chen, Y | 6 |
| Jin, X | 2 |
| Shochet, T | 2 |
| Turok, D | 2 |
| Frye, LJ | 2 |
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| Trial | Phase | Enrollment | Study Type | Start Date | Status | ||
|---|---|---|---|---|---|---|---|
| Reducing the Impact of Ovarian Stimulation - The RIOT Project. Study RIOT-A: The Role of Aromatase Inhibitor in Reducing the Detrimental Effects of Ovarian Stimulation to Optimize Outcomes in Fresh Embryo Transfer Cycles[NCT02946684] | Phase 2/Phase 3 | 129 participants (Actual) | Interventional | 2017-02-01 | Completed | ||
| Reducing the Impact of Ovarian Stimulation - The RIOT Project Study RIOT-B: Mapping the Endocrine Determinants of Ovarian Stimulation to Optimize Outcomes in Fresh Embryo Transfer Cycles[NCT02939898] | Phase 2/Phase 3 | 33 participants (Actual) | Interventional | 2016-08-31 | Completed | ||
| Hormonal Replacement Therapy Plus Letrozole Incorporation Versus Letrozole Mild Ovarian Stimulation in Endometrial Preparation for Frozen Embryo Transfer: A Randomised Controlled Trial[NCT06181305] | Phase 4 | 210 participants (Anticipated) | Interventional | 2023-12-12 | Not yet recruiting | ||
| A Randomized Trial of Letrozole as an Adjunct to Follicle Stimulating Hormone in Stimulated in Vitro Fertilization Cycles[NCT02912988] | Phase 3 | 900 participants (Actual) | Interventional | 2018-03-01 | Completed | ||
| Administration of Single High Dose Letrozole for Ovulation Induction - A Randomized Controlled Trial[NCT02703649] | Phase 4 | 36 participants (Actual) | Interventional | 2016-03-31 | Completed | ||
| Laparoscopic Ovarian Drilling Versus Letrozole In Clomiphene Citrate Resistant Polycystic Ovary: A Randomized Controlled Trial[NCT03664050] | Phase 3 | 90 participants (Anticipated) | Interventional | 2018-01-01 | Recruiting | ||
| Efficacy of Combined Letrozole-metformin in Comparison With Letrozole Only in Clomiphene Resistant Infertile Women With Polycystic Ovarian Syndrome[NCT03135301] | Phase 3 | 80 participants (Anticipated) | Interventional | 2017-06-20 | Recruiting | ||
| Dosage Optimization for Letrozole Treatment in Clomiphene Resistant Patients With Polycystic Ovary Syndrome: A Prospective Interventional Study[NCT01315912] | Phase 4 | 44 participants (Actual) | Interventional | 2008-01-31 | Completed | ||
| A Multicenter Randomized Trial of Personalized Acupuncture, Fixed Acupuncture, Letrozole and Placebo on Live Birth for Infertility in Women With Polycystic Ovary Syndrome[NCT03625531] | Phase 3 | 1,100 participants (Anticipated) | Interventional | 2018-08-13 | Recruiting | ||
| Intrauterine Insemination With Letrozole Versus Intrauterine Insemination in Natural Cycle. A Randomised Controlled Trial[NCT03455426] | 100 participants (Actual) | Interventional | 2018-03-15 | Completed | |||
| Letrozole Versus Laparoscopic Ovarian Drilling for Clomiphene-resistant Women With Polycystic Ovary Syndrome[NCT03009838] | Phase 3 | 150 participants (Anticipated) | Interventional | 2017-01-02 | Recruiting | ||
| To Investigate the Effectiveness of Adjuvant Supplements Prior to in Vitro Fertilization Cycles[NCT05471453] | 90 participants (Anticipated) | Interventional | 2022-03-02 | Recruiting | |||
| Effects of Autologous Intraovarian Platelet Rich Plasma in Women With Poor Ovarian Response[NCT04797377] | 66 participants (Actual) | Interventional | 2021-03-16 | Completed | |||
| Sublingual vs Vaginal Misoprostol for Termination of First Trimesteric Missed Abortion[NCT05001061] | Early Phase 1 | 288 participants (Anticipated) | Interventional | 2021-08-03 | Not yet recruiting | ||
| Assessment of Multiple Intrauterine Gestations From Ovarian Stimulation[NCT01044862] | Phase 3 | 900 participants (Actual) | Interventional | 2010-06-30 | Completed | ||
| Double Blind Cross-over Randomized Controlled Trial Comparing Letrozole Versus Clomifene Citrate for Ovulation Induction in Women With Polycystic Ovarian Syndrome[NCT00478504] | Phase 4 | 159 participants (Actual) | Interventional | 2007-05-31 | Completed | ||
| The Impact of the Intensity of Ovarian Stimulation on Embryo Quality in Predicted Suboptimal Responders. A Randomized Controlled Trial[NCT04983173] | Phase 4 | 110 participants (Anticipated) | Interventional | 2021-11-23 | Recruiting | ||
| The Use of Letrozole or Mifepristone for Pretreatment of Medical Termination of Pregnancy: a Randomized, Non-inferiority Trial[NCT05341817] | Phase 4 | 144 participants (Anticipated) | Interventional | 2022-11-22 | Recruiting | ||
| Follicular Synchronization in Polycystic Ovarian Syndrome Patients Undergoing Intracytoplasmatic Sperm Injection With Letrozole /Antagonist Protocol: A Randomized Controlled Trial[NCT04069117] | Phase 4 | 200 participants (Actual) | Interventional | 2019-08-01 | Completed | ||
| Graceful Lifestyle Changes Intervention Study for Women With PCOS and Infertility[NCT02630485] | 240 participants (Anticipated) | Interventional | 2015-12-31 | Not yet recruiting | |||
| Combined Letrozole and Clomid in Polycystic Ovary Syndrome: a Randomized Control Trial of Combination of Letrozole and Clomiphene Citrate or Letrozole Alone for the Treatment of Infertility in Women With Polycystic Ovary Syndrome[NCT02802865] | Phase 4 | 70 participants (Actual) | Interventional | 2016-08-31 | Completed | ||
| Gonadotropin-releasing Hormone Agonist Combined With Letrozole Compared With Megestrol Acetate or Medroxyprogesterone Acetate Alone as Fertility-sparing Treatment in Early Endometrial Cancer[NCT05247268] | Phase 2 | 104 participants (Anticipated) | Interventional | 2022-03-11 | Recruiting | ||
| COmbining Oral Letrozole and Clomiphene for Ovarian Stimulation (COOL-COS) Associated With Corifollitropin Alfa: a Pilot Study[NCT02448459] | Phase 1 | 40 participants (Actual) | Interventional | 2015-05-31 | Completed | ||
| Evaluation of a Simplified Low-cost and Friendly Controlled Ovarian Stimulation Combining Oral Letrozole and Clomiphene Citrate: a Pilot Study[NCT02288143] | Phase 4 | 28 participants (Actual) | Interventional | 2015-01-31 | Completed | ||
| Letrozole and Sequential Clomiphene to Improve the Outcome of Embryo Transfer in Polycystic Ovary Syndrome (PCOS) Patients[NCT02775877] | 100 participants (Anticipated) | Interventional | 2016-05-31 | Recruiting | |||
| Comparison of Tamoxifen and Clomiphene Citrate in Mild Stimulation IVF: a Prospective Cohort Study[NCT02690870] | Phase 4 | 210 participants (Anticipated) | Interventional | 2017-01-31 | Not yet recruiting | ||
| Is the Co-administration of Metformine and CC as Compared to Placebo and CC Superior to Induce Ovulation in PCOS Patients With a Confirmed insulin-resistant-a Double Blind Randomized Clinical Trial[NCT02523898] | Phase 2 | 388 participants (Anticipated) | Interventional | 2015-11-30 | Enrolling by invitation | ||
| A 20 Week Double-Blind Randomized Trial of Clomiphene Citrate and Letrozole for the Treatment of Infertility in Women With Polycystic Ovary Syndrome[NCT00719186] | Phase 3 | 750 participants (Actual) | Interventional | 2009-02-28 | Completed | ||
| Effect of Acupuncture Pre-treatment Combined With Letrozole on Live Birth in Infertile Women With Polycystic Ovary Syndrome[NCT02491320] | Phase 3 | 384 participants (Actual) | Interventional | 2015-08-31 | Completed | ||
| Efficiency and Safety Study of Ovarian Stimulation With Letrozole for Fertility Preservation in Breast Cancer Patients[NCT02661932] | Phase 4 | 65 participants (Actual) | Interventional | 2012-11-30 | Active, not recruiting | ||
| Safety of Ovarian Stimulation With Letrozole and Gonadotropins in Breast Cancer Patients Undergoing Embryo or Oocyte Cryopreservation: A Prospective Controlled Follow up Study[NCT00504699] | 120 participants (Actual) | Interventional | 2002-01-31 | Terminated (stopped due to The PI left the Institution.) | |||
| The Effectiveness of Using Letrozole Prior to Misoprostol Versus Misoprostol Alone for Successful Induction of Medical Abortion: A Randomized Controlled Trial[NCT04194658] | Phase 2 | 150 participants (Anticipated) | Interventional | 2020-01-31 | Not yet recruiting | ||
| Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital[NCT03238833] | 96 participants (Actual) | Interventional | 2017-05-03 | Completed | |||
| Prospective, Randomized Trial Comparing Luteal Phase Ovarian Stimulation, and Luteal Estradiol Priming Protocol for Patients With Diminished Ovarian Reserve - The LUTEAL Trial[NCT04447872] | 142 participants (Anticipated) | Interventional | 2020-09-15 | Recruiting | |||
| Clinical Effect of Follicular Preparation With Testosterone in Poor Ovarian Response: a Randomized Controlled Clinical Trial (TESTOPRIM)[NCT03378713] | Phase 3 | 63 participants (Actual) | Interventional | 2017-08-07 | Completed | ||
| Comparison Between Letrozole and Urinary Purified FSH in Women With Clomiphene Citrate Resistant Polycystic Ovarian Syndrome: A Randomised Controlled Trial[NCT02304107] | Phase 3 | 140 participants (Actual) | Interventional | 2013-05-31 | Completed | ||
| Extended High Dose Letrozole Regimen Versus Short Low Dose Letrozole Regimen as an Adjuvant to GnRH Antagonist Protocol in the Management of Patients With Poor Ovarian Response Undergoing IVF-ET, a Randomized Controlled Trial[NCT01219153] | Phase 2 | 136 participants (Actual) | Interventional | 2008-09-30 | Completed | ||
| Extended Letrozole Regimen Versus Clomiphene Citrate for Superovulation in Patients With Unexplained Infertility Undergoing Intrauterine Insemination[NCT01232075] | Phase 2 | 214 participants (Actual) | Interventional | 2008-09-30 | Completed | ||
| Extended Letrozole Regimen Co-treatment With Gonadotropin Releasing Hormone Antagonist Protocol Versus Gonadotropin Releasing Hormone Antagonist Protocol in Poor Responders Undergoing IVF-ET. A Randomized Controlled Trial[NCT04268927] | Phase 2 | 106 participants (Anticipated) | Interventional | 2018-04-01 | Recruiting | ||
| "Supplementation of the Luteal Phase With Vaginal Progesterone (Crinone 8%) in Women With Polycystic Ovary Syndrome Undergoing Ovulation Induction With Letrozole: A Prospective and Randomized Controlled Trial"[NCT03440359] | Phase 2/Phase 3 | 52 participants (Actual) | Interventional | 2012-07-06 | Completed | ||
| The Randomized Clinical Trials of Letrozole Administration During Luteal Phase in Patients Who Have the Risk of Ovarian Hyperstimulation Syndrome[NCT02686151] | Phase 3 | 50 participants (Anticipated) | Interventional | 2023-12-31 | Not yet recruiting | ||
| Phase II Randomized Study of Neoadjuvant Metformin Plus Letrozole vs Placebo Plus Letrozole for ER-positive Postmenopausal Breast Cancer[NCT01589367] | Phase 2 | 208 participants (Actual) | Interventional | 2012-05-31 | Completed | ||
| A Scientific & Clinical Review of Minimal Stimulation Protocol Using AROMEK (Letrozole) and Follitrope (Recombinant FSH)Combined With INVOCell(Intravaginal Culturing) - Effectiveness as Low Cost IVF[NCT01058252] | 30 participants (Anticipated) | Observational | 2021-05-31 | Recruiting | |||
| Randomized Controlled Trial on Use of Letrozole in the Medical Management of Tubal Ectopic Pregnancies[NCT04341545] | Phase 3 | 214 participants (Anticipated) | Interventional | 2020-12-01 | Recruiting | ||
| Study at Zagazig General Hospital[NCT04593108] | 320 participants (Anticipated) | Observational | 2019-01-15 | Active, not recruiting | |||
| Letrozole Plus Misoprostol Versus Misoprostol Alone in Induction of Abortion of Anembryonic Pregnancy:[NCT05198050] | 96 participants (Actual) | Interventional | 2022-04-03 | Completed | |||
| Clomiphene Citrate Plus HPuFSH Versus Letrozole Plus HPuFSH in Clomid Resistant Infertile PCOS Women[NCT01793038] | 160 participants (Anticipated) | Interventional | 2013-03-31 | Recruiting | |||
| Effect of Dehydroepiandrosterone on Live Birth Rate in Subfertile Patients With Poor Ovarian Responds[NCT02432248] | 350 participants (Anticipated) | Interventional | 2015-02-28 | Recruiting | |||
| Comparison Between the Role of Follicular Output Rate and Preovulatory Count in the Prediction of Pregnancy in Women With Polycystic Ovarian Syndrome Undergoing Intra Cytoplasmic Sperm Injection (ICSI)[NCT02190006] | 300 participants (Anticipated) | Observational | 2014-07-31 | Recruiting | |||
| Letrozole and CC Alone in an IUI Program in Women With Surgically Treated Minimal to Mild Endometriosis[NCT01334762] | 136 participants (Actual) | Interventional | 2007-05-31 | Completed | |||
| A Randomized Controlled Study to Compare the Outcome of Two Protocols Used to Prepare the Endometrium for Frozen Embryo Transfer[NCT04507022] | Phase 4 | 112 participants (Actual) | Interventional | 2020-08-12 | Completed | ||
| Letrozole Versus Combined Metformin and Clomiphene Citrate for Ovulation Induction in Clomiphene-Resistant Women With Polycystic Ovary Syndrome[NCT00911313] | 250 participants (Actual) | Interventional | 2006-06-30 | Completed | |||
| Letrozole Versus Laparoscopic Ovarian Diathermy for Ovulation Induction in Clomiphene-resistant Women With Polycystic Ovary Syndrome[NCT00956267] | 260 participants (Actual) | Interventional | 2006-08-31 | Completed | |||
| Comparison Between Stimulated Intrauterine Insemination Cycles and Unstimulated Intrauterine Insemination Cycles in Couples With Unexplained Infertility[NCT02461173] | Phase 3 | 450 participants (Anticipated) | Interventional | 2015-06-30 | Recruiting | ||
| Stimulated Versus Un-stimulated Intrauterine Insemination Cycles in Couples With Mild Male Factor Infertility: A Randomized Controlled Trial[NCT02469805] | Phase 3 | 450 participants (Anticipated) | Interventional | 2015-06-30 | Recruiting | ||
| Stimulated Versus Un-stimulated Intrauterine Insemination Cycles in Women With Endometriosis: A Randomized Controlled Trial[NCT02470169] | Phase 3 | 450 participants (Anticipated) | Interventional | 2015-06-30 | Recruiting | ||
| Use of High Cost Monitoring During Letrozole Ovulation Induction and Effect on Pregnancy Rates - A Pilot Study[NCT01279200] | Phase 4 | 21 participants (Actual) | Interventional | 2011-01-31 | Completed | ||
| Role of Aromatase Inhibitor to Enhance Ovulation in Poor Responder During Induction With Short Antagonist Protocol in Cases of ICSI(Intracytoplasmic Sperm Injection) a Case Control Study[NCT02741154] | Phase 4 | 50 participants (Actual) | Interventional | 2016-08-12 | Completed | ||
| [information is prepared from clinicaltrials.gov, extracted Sep-2024] | |||||||
(NCT01044862)
Timeframe: Participants were followed for the duration of their treatment and, if pregnant through 6 weeks post-delivery, up to 66 weeks
| Intervention | participants (Number) |
|---|---|
| Aromatase Inhibitors (AI) | 56 |
| Clomiphene Citrate (CC) | 70 |
| Follicle Stimulating Hormone (FSH) | 97 |
(NCT01044862)
Timeframe: Participants were followed for the duration of their treatment and, if pregnant through 6 weeks post-delivery, up to 66 weeks
| Intervention | number of multiples (Number) |
|---|---|
| Aromatase Inhibitors (AI) | 9 |
| Clomiphene Citrate (CC) | 8 |
| Follicle Stimulating Hormone (FSH) | 34 |
(NCT01044862)
Timeframe: Participants were followed for the duration of their treatment and, if pregnant through 6 weeks post-delivery, up to 66 weeks
| Intervention | participants (Number) |
|---|---|
| Aromatase Inhibitors (AI) | 85 |
| Clomiphene Citrate (CC) | 106 |
| Follicle Stimulating Hormone (FSH) | 140 |
(NCT01044862)
Timeframe: Participants were followed for the duration of their treatment and, if pregnant through 6 weeks post-delivery, up to 66 weeks
| Intervention | days (Mean) |
|---|---|
| Aromatase Inhibitors (AI) | 67.2 |
| Clomiphene Citrate (CC) | 67.4 |
| Follicle Stimulating Hormone (FSH) | 62.3 |
Clinical Pregnancy: an intrauterine pregnancy with fetal heart motion determined by ultrasonography; No Clinical Pregnancy: no intrauterine pregnancy with fetal heart motion determined by ultrasonography (NCT02802865)
Timeframe: 6-7 weeks after treatment
| Intervention | Participants (Count of Participants) |
|---|---|
| Letrozole | 1 |
| Letrozole + Clomiphene | 3 |
Conception: a positive serum or urinary test of hCG; No conception: Neither a positive serum or urinary test of hCG (NCT02802865)
Timeframe: 5 weeks after treatment
| Intervention | Participants (Count of Participants) |
|---|---|
| Letrozole | 3 |
| Letrozole + Clomiphene | 4 |
Thickness of endometrial lining assessed by ultrasound (NCT02802865)
Timeframe: Cycle day 12-14
| Intervention | mm (Mean) |
|---|---|
| Letrozole | 6.2 |
| Letrozole + Clomiphene | 8.3 |
Live Birth: delivery of a live infant; No Live Birth: no delivery of a live infant (NCT02802865)
Timeframe: 9-10 months after treatment
| Intervention | Participants (Count of Participants) |
|---|---|
| Letrozole | 1 |
| Letrozole + Clomiphene | 3 |
Multiple Gestation: an intrauterine pregnancy with multiple fetal heart rates determined by ultrasonography; No Multiple Gestation: either no intrauterine pregnancy, or an intrauterine pregnancy with a single fetal heart rate determined by ultrasonography (NCT02802865)
Timeframe: 9-10 months after treatment
| Intervention | Participants (Count of Participants) |
|---|---|
| Letrozole | 0 |
| Letrozole + Clomiphene | 0 |
Number of follicles measuring > 10mm on ultrasound (NCT02802865)
Timeframe: Cycle day 12-14
| Intervention | follicles (Median) |
|---|---|
| Letrozole | 0 |
| Letrozole + Clomiphene | 1 |
Ovulation: mid-luteal progesterone > /=3 ng/mL. No ovulation: mid-luteal progesterone <3ng/mL. (NCT02802865)
Timeframe: 7 days following LH surge or at cycle day 21 if no LH surge was detected
| Intervention | Participants (Count of Participants) |
|---|---|
| Letrozole | 15 |
| Letrozole + Clomiphene | 27 |
Pregnancy Loss: any pregnancy loss including biochemical pregnancy, ectopic pregnancy, and miscarriage; No Pregnancy Loss: no pregnancy loss including biochemical pregnancy, ectopic pregnancy, or miscarriage. (NCT02802865)
Timeframe: 9-10 months after treatment
| Intervention | Participants (Count of Participants) |
|---|---|
| Letrozole | 2 |
| Letrozole + Clomiphene | 1 |
Size of largest follicle on ultrasound (NCT02802865)
Timeframe: Cycle day 12-14
| Intervention | mm (Median) |
|---|---|
| Letrozole | 10 |
| Letrozole + Clomiphene | 16 |
The primary outcome measure is the occurrence of a live birth during the study period. Safety measures will be the number and type of reported adverse events in subjects and offspring. (NCT00719186)
Timeframe: as few as 5 months, up to 16 months
| Intervention | Participants (Count of Participants) |
|---|---|
| Arm A: Clomiphene Citrate | 72 |
| Arm B: Letrozole | 103 |
(NCT00719186)
Timeframe: as few as 5 months, up to 16 months
| Intervention | ovulations (Number) |
|---|---|
| Arm A: Clomiphene Citrate | 331 |
| Arm B: Letrozole | 388 |
(NCT00719186)
Timeframe: as few as 5 months, up to 16 months
| Intervention | Participants (Count of Participants) |
|---|---|
| Arm A: Clomiphene Citrate | 103 |
| Arm B: Letrozole | 154 |
(NCT00719186)
Timeframe: as few as 5 months, up to 16 months
| Intervention | events (Number) |
|---|---|
| Arm A: Clomiphene Citrate | 13 |
| Arm B: Letrozole | 22 |
(NCT00719186)
Timeframe: September 2008 - December 2011
| Intervention | participants (Number) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Neonatal jaundice | Neonatal respiratory distress syndrome | Neonatal hospitalization >3 days | Intrauterine growth restriction | Neonatal infectin | Minor birth defect | Other complication | Congenital anomaly | Neonatal death | |
| Arm A: Clomiphene Citrate | 17 | 2 | 4 | 1 | 2 | 0 | 4 | 1 | 2 |
| Arm B: Letrozole | 27 | 7 | 4 | 5 | 2 | 1 | 5 | 4 | 1 |
Percentage of women in each arm who became pregnant within the study time frame. (NCT01279200)
Timeframe: 3 menstrual/treatment cycles (approximately 28-33 days each)
| Intervention | percentage of participants (Number) |
|---|---|
| Urinary LH Kits | 75 |
| Midcycle Ultrasound + hCG Injection | 25 |
Cycles means treatment/menstrual cycles, approximately 28-33 days. (NCT01279200)
Timeframe: 3 menstrual/treatment cycles, or upon conception, whichever comes first
| Intervention | menstrual cycles (Mean) |
|---|---|
| Urinary LH Kits | 1.83 |
| Midcycle Ultrasound + hCG Injection | 1 |
61 reviews available for letrozole and Pregnancy
| Article | Year |
|---|---|
Co-treatment with letrozole during ovarian stimulation for IVF/ICSI: a systematic review and meta-analysis.
Topics: Female; Fertilization in Vitro; Humans; Letrozole; Live Birth; Ovulation Induction; Pregnancy; Pregn | 2022 |
Live birth after letrozole as an adjunct to follicle-stimulating hormone versus follicle-stimulating hormone alone for ovarian stimulation in in vitro fertilisation cycles-study protocol for a randomised controlled trial.
Topics: Drug Therapy, Combination; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Humans; Inf | 2022 |
Efficacy and safety of letrozole or anastrozole in the treatment of male infertility with low testosterone-estradiol ratio: A meta-analysis and systematic review.
Topics: Anastrozole; Estradiol; Female; Follicle Stimulating Hormone; Humans; Infertility, Male; Letrozole; | 2022 |
Ovarian stimulation strategies for intrauterine insemination in couples with unexplained infertility: a systematic review and individual participant data meta-analysis.
Topics: Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility; Infertility, Femal | 2022 |
Luteal phase support for women trying to conceive by intrauterine insemination or sexual intercourse.
Topics: Abortion, Spontaneous; Chorionic Gonadotropin; Clomiphene; Coitus; Female; Gonadotropin-Releasing Ho | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Aromatase inhibitors (letrozole) for ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2022 |
Letrozole Compared With Clomiphene Citrate for Polycystic Ovarian Syndrome: A Systematic Review and Meta-analysis.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Live Birth; Ov | 2023 |
The future of frozen-thawed embryo transfer in hormone replacement therapy cycles.
Topics: Anovulation; Cryopreservation; Embryo Transfer; Female; Hormone Replacement Therapy; Humans; Letrozo | 2023 |
Intrauterine Insemination After Human Chorionic Gonadotropin Trigger or Luteinizing Hormone Surge: A Meta-analysis.
Topics: Chorionic Gonadotropin; Clomiphene; Cross-Sectional Studies; Female; Humans; Insemination; Letrozole | 2023 |
In vitro fertilisation for unexplained subfertility.
Topics: Abortion, Spontaneous; Clomiphene; Female; Fertility Agents, Female; Fertilization in Vitro; Gonadot | 2023 |
First-line ovulation induction for polycystic ovary syndrome: an individual participant data meta-analysis.
Topics: Birth Rate; Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility, Female | 2019 |
IUI for unexplained infertility-a network meta-analysis.
Topics: Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility; Insemination, Arti | 2020 |
Gonadotropins versus oral ovarian stimulation agents for unexplained infertility: a systematic review and meta-analysis.
Topics: Administration, Oral; Adolescent; Adult; Clomiphene; Female; Fertility; Fertility Agents, Female; Go | 2020 |
Adjuvant treatment strategies in ovarian stimulation for poor responders undergoing IVF: a systematic review and network meta-analysis.
Topics: Clomiphene; Combined Modality Therapy; Controlled Clinical Trials as Topic; Drug Resistance; Female; | 2020 |
Adjuvant treatment strategies in ovarian stimulation for poor responders undergoing IVF: a systematic review and network meta-analysis.
Topics: Clomiphene; Combined Modality Therapy; Controlled Clinical Trials as Topic; Drug Resistance; Female; | 2020 |
Adjuvant treatment strategies in ovarian stimulation for poor responders undergoing IVF: a systematic review and network meta-analysis.
Topics: Clomiphene; Combined Modality Therapy; Controlled Clinical Trials as Topic; Drug Resistance; Female; | 2020 |
Adjuvant treatment strategies in ovarian stimulation for poor responders undergoing IVF: a systematic review and network meta-analysis.
Topics: Clomiphene; Combined Modality Therapy; Controlled Clinical Trials as Topic; Drug Resistance; Female; | 2020 |
Endometrial preparation for women undergoing embryo transfer with frozen embryos or embryos derived from donor oocytes.
Topics: Abortion, Spontaneous; Bias; Clomiphene; Cryopreservation; Drug Administration Schedule; Embryo Impl | 2020 |
Whether Letrozole could reduce the incidence of early ovary hyperstimulation syndrome after assisted reproductive technology? A systematic review and meta-analysis.
Topics: Aromatase Inhibitors; Female; Humans; Incidence; Infertility, Female; Letrozole; Ovarian Hyperstimul | 2020 |
Risk of foetal harm with letrozole use in fertility treatment: a systematic review and meta-analysis.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infant, Newborn; Infertility, Female; Letrozol | 2021 |
Stimulated cycle versus artificial cycle for frozen embryo transfer in patients with polycystic ovary syndrome: a Meta-analysis.
Topics: Abortion, Spontaneous; Aromatase Inhibitors; Cryopreservation; Embryo Implantation; Embryo Transfer; | 2021 |
Effects of using letrozole in combination with the GnRH antagonist protocol for patients with poor ovarian response: A meta-analysis.
Topics: Adult; Aromatase Inhibitors; Clinical Protocols; Female; Gonadotropin-Releasing Hormone; Humans; Let | 2021 |
Effectiveness and safety of aspirin combined with letrozole in the treatment of polycystic ovary syndrome: a systematic review and meta-analysis.
Topics: Aspirin; China; Female; Humans; Letrozole; Ovulation Induction; Polycystic Ovary Syndrome; Pregnancy | 2021 |
Higher ovulation rate with letrozole as compared with clomiphene citrate in infertile women with polycystic ovary syndrome: a systematic review and meta-analysis.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Ovulation Indu | 2021 |
Polycystic ovarian syndrome and infertility: overview and insights of the putative treatments.
Topics: Anti-Mullerian Hormone; Bariatric Surgery; Clomiphene; Female; Gonadotropins; Humans; Infertility, F | 2021 |
In vitro fertilization treatments with the use of clomiphene citrate or letrozole.
Topics: Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Fertilization in Vitro; Gon | 2017 |
Oral medications including clomiphene citrate or aromatase inhibitors with gonadotropins for controlled ovarian stimulation in women undergoing in vitro fertilisation.
Topics: Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Fertilization in Vitro; Gon | 2017 |
Letrozole pretreatment prior to medical termination of pregnancy: a systematic review.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Aromatase Inhibitors; Dilatation and Curettag | 2018 |
Letrozole versus clomiphene citrate in polycystic ovary syndrome: a meta-analysis of randomized controlled trials.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Live Birth; Ov | 2018 |
Aromatase inhibitors (letrozole) for subfertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Anastrozole; Aromatase Inhibitors; Birth Rate; Clomiphene; Coitus; Female; Fe | 2018 |
Pharmacology of medications used for ovarian stimulation.
Topics: Clomiphene; Female; Fertility Agents, Female; Gonadotropin-Releasing Hormone; Gonadotropins; Humans; | 2019 |
Letrozole versus laparoscopic ovarian drilling in clomiphene citrate-resistant women with polycystic ovary syndrome: a systematic review and meta-analysis of randomized controlled trials.
Topics: Aromatase Inhibitors; Birth Rate; Clomiphene; Drug Resistance; Female; Fertility Agents, Female; Hum | 2019 |
Letrozole Compared With Clomiphene Citrate for Unexplained Infertility: A Systematic Review and Meta-analysis.
Topics: Abortion, Spontaneous; Aromatase Inhibitors; Clomiphene; Estradiol; Female; Fertility Agents, Female | 2019 |
The efficacy of letrozole supplementation for medical abortion: a meta-analysis of randomized controlled trials.
Topics: Dietary Supplements; Female; Humans; Letrozole; Pregnancy; Randomized Controlled Trials as Topic | 2021 |
Tamoxifen or letrozole versus standard methods for women with estrogen-receptor positive breast cancer undergoing oocyte or embryo cryopreservation in assisted reproduction.
Topics: Breast Neoplasms; Cryopreservation; Embryo, Mammalian; Female; Humans; Letrozole; Nitriles; Oocytes; | 2013 |
Effectiveness of the antagonist/letrozole protocol for treating poor responders undergoing in vitro fertilization/intracytoplasmic sperm injection: a systematic review and meta-analysis.
Topics: Female; Fertilization in Vitro; Gonadotropin-Releasing Hormone; Humans; Letrozole; Male; Nitriles; O | 2014 |
Aromatase inhibitors for subfertile women with polycystic ovary syndrome.
Topics: Anastrozole; Aromatase Inhibitors; Birth Rate; Clomiphene; Coitus; Female; Fertility Agents, Female; | 2014 |
The utility of metformin therapy in reproductive-aged women with polycystic ovary syndrome (PCOS).
Topics: Animals; Clomiphene; Female; Fertility Agents, Female; Humans; Hypoglycemic Agents; Letrozole; Metfo | 2014 |
Letrozole versus clomiphene citrate for unexplained infertility: a systematic review and meta-analysis.
Topics: Abortion, Spontaneous; Bias; Clomiphene; Endometrium; Estradiol; Female; Follicle Stimulating Hormon | 2014 |
The evaluation of pre and post processing semen analysis parameters at the time of intrauterine insemination in couples diagnosed with male factor infertility and pregnancy rates based on stimulation agent. A retrospective cohort study.
Topics: Adult; Aromatase Inhibitors; Female; Humans; Infertility, Male; Insemination, Artificial, Homologous | 2014 |
Ovulation induction: once bitten, twice shy?
Topics: Aromatase Inhibitors; Female; Humans; Letrozole; Multiple Birth Offspring; Nitriles; Ovulation Induc | 2015 |
Endocrine and reproductive effects of polycystic ovarian syndrome.
Topics: Adult; Clomiphene; Female; Fertility Agents, Female; Fertilization in Vitro; Humans; Infertility, Fe | 2015 |
The use of aromatase inhibitors for ovulation induction.
Topics: Adult; Aromatase Inhibitors; Birth Rate; Clomiphene; Coitus; Female; Humans; Infertility, Female; Le | 2015 |
Novel strategies in the management of polycystic ovary syndrome.
Topics: Adult; Clomiphene; Contraceptives, Oral, Combined; Female; Fertility Agents, Female; Fertilization i | 2015 |
Letrozole versus clomiphene citrate in polycystic ovary syndrome: systematic review and meta-analysis.
Topics: Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Let | 2015 |
The benefits of other treatments than in vitro fertilization to aid conception in minimal and mild endometriosis.
Topics: Clomiphene; Endometriosis; Female; Fertility Agents, Female; Fertilization in Vitro; Humans; Inferti | 2016 |
The management of anovulatory infertility in women with polycystic ovary syndrome: an analysis of the evidence to support the development of global WHO guidance.
Topics: Anovulation; Aromatase Inhibitors; Clomiphene; Consensus; Female; Fertility Agents, Female; Fertiliz | 2016 |
Oocyte cryopreservation for fertility preservation in women with cancer.
Topics: Cryopreservation; Estradiol; Female; Fertility Preservation; Humans; Infertility, Female; Letrozole; | 2016 |
Ovulation induction in polycystic ovary syndrome: Current options.
Topics: Anovulation; Anti-Obesity Agents; Aromatase Inhibitors; Bariatric Surgery; Clomiphene; Diet Therapy; | 2016 |
Treatment strategies for women with WHO group II anovulation: systematic review and network meta-analysis
Topics: Anovulation; Clomiphene; Drug Therapy, Combination; Female; Humans; Infertility, Female; Letrozole; | 2017 |
Clomiphene citrate and letrozole to reduce follicle-stimulating hormone consumption during ovarian stimulation: systematic review and meta-analysis.
Topics: Clomiphene; Embryo Transfer; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Humans; L | 2017 |
[Ovulation induction by means of letrozole].
Topics: Aromatase Inhibitors; Clomiphene; Estrogen Antagonists; Female; Fertility Agents, Female; Humans; Le | 2009 |
Aromatase inhibitors for female infertility: a systematic review of the literature.
Topics: Adult; Anastrozole; Aromatase Inhibitors; Clomiphene; Female; Fertilization in Vitro; Gonadotropins; | 2009 |
Effect of androgen supplementation or modulation on ovarian stimulation outcome in poor responders: a meta-analysis.
Topics: Androgens; Dehydroepiandrosterone; Female; Humans; Letrozole; Nitriles; Oocyte Retrieval; Ovulation | 2011 |
Meta-analysis of letrozole versus clomiphene citrate in polycystic ovary syndrome.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Letrozole; Nitriles; Ovulation Induction; Poly | 2011 |
Aromatase inhibitors in stimulated IVF cycles.
Topics: Aromatase Inhibitors; Clomiphene; Female; Fertilization in Vitro; Follicular Phase; Gonadotropins; H | 2011 |
Reproductive impact of polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Clomiphene; Female; Fertilization in Vitro; Humans; Infant, Newborn; Infertil | 2012 |
Evaluation and treatment of anovulatory and unexplained infertility.
Topics: Anovulation; Clomiphene; Diet; Evidence-Based Medicine; Exercise; Female; Fertility Agents, Female; | 2012 |
The dawning of the non-cancer uses of aromatase inhibitors in gynaecology.
Topics: Aromatase Inhibitors; Drug Approval; Enzyme Inhibitors; Female; Fertility Agents, Female; Follicle S | 2003 |
Synergistic effects of antiprogestins and iNOS or aromatase inhibitors on establishment and maintenance of pregnancy.
Topics: Animals; Aromatase Inhibitors; Embryo Implantation; Enzyme Inhibitors; Estrogens; Female; Hormone An | 2003 |
Synergistic effects of antiprogestins and iNOS or aromatase inhibitors on establishment and maintenance of pregnancy.
Topics: Animals; Aromatase Inhibitors; Embryo Implantation; Enzyme Inhibitors; Estrogens; Female; Hormone An | 2003 |
Synergistic effects of antiprogestins and iNOS or aromatase inhibitors on establishment and maintenance of pregnancy.
Topics: Animals; Aromatase Inhibitors; Embryo Implantation; Enzyme Inhibitors; Estrogens; Female; Hormone An | 2003 |
Synergistic effects of antiprogestins and iNOS or aromatase inhibitors on establishment and maintenance of pregnancy.
Topics: Animals; Aromatase Inhibitors; Embryo Implantation; Enzyme Inhibitors; Estrogens; Female; Hormone An | 2003 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
A new era in ovulation induction.
Topics: Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Folli | 2006 |
New advances in ovulation induction.
Topics: Anastrozole; Aromatase Inhibitors; Clomiphene; Estrogen Antagonists; Female; Fertility Agents, Femal | 2007 |
Assisted reproduction and breast cancer.
Topics: Algorithms; Antineoplastic Combined Chemotherapy Protocols; Breast Neoplasms; Cryopreservation; Embr | 2007 |
Ovulation induction in polycystic ovary syndrome.
Topics: Adult; Anovulation; Aromatase Inhibitors; Body Mass Index; Clomiphene; Diathermy; Female; Fertility | 2008 |
118 trials available for letrozole and Pregnancy
| Article | Year |
|---|---|
Impact of letrozole co-treatment during ovarian stimulation with gonadotrophins for IVF: a multicentre, randomized, double-blinded placebo-controlled trial.
Topics: Androgens; Estradiol; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Gonadotropins; H | 2022 |
Impact of letrozole co-treatment during ovarian stimulation with gonadotrophins for IVF: a multicentre, randomized, double-blinded placebo-controlled trial.
Topics: Androgens; Estradiol; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Gonadotropins; H | 2022 |
Impact of letrozole co-treatment during ovarian stimulation with gonadotrophins for IVF: a multicentre, randomized, double-blinded placebo-controlled trial.
Topics: Androgens; Estradiol; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Gonadotropins; H | 2022 |
Impact of letrozole co-treatment during ovarian stimulation with gonadotrophins for IVF: a multicentre, randomized, double-blinded placebo-controlled trial.
Topics: Androgens; Estradiol; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Gonadotropins; H | 2022 |
The efficiency of low-dose letrozole plus clomiphene citrate for ovulation induction in intrauterine insemination cycles: A randomized clinical trial.
Topics: Chorionic Gonadotropin; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; I | 2022 |
Prospective open-label non-inferiority randomised controlled trial comparing letrozole and mifepristone pretreatment in medical management of first trimester missed miscarriage: study protocol.
Topics: Abortion, Induced; Abortion, Spontaneous; Female; Humans; Letrozole; Mifepristone; Misoprostol; Preg | 2022 |
The novel incorporation of aromatase inhibitor in hormonal replacement therapy cycles: a randomized controlled trial.
Topics: Aromatase Inhibitors; Estradiol; Female; Hormone Replacement Therapy; Humans; Letrozole; Pregnancy; | 2022 |
Single-administered GnRH agonist as luteal phase support in insemination cycles: a randomized controlled trial.
Topics: Female; Gonadotropin-Releasing Hormone; Humans; Insemination; Letrozole; Luteal Phase; Ovulation Ind | 2022 |
Live birth after letrozole as an adjunct to follicle-stimulating hormone versus follicle-stimulating hormone alone for ovarian stimulation in in vitro fertilisation cycles-study protocol for a randomised controlled trial.
Topics: Drug Therapy, Combination; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Humans; Inf | 2022 |
The Effect of Clomiphene Citrate and Letrozole in Apoptotic Pathways and Cell Cycle in Human Primary Cumulus Cells and the Protective Effect of Estradiol.
Topics: bcl-2-Associated X Protein; Cell Cycle; Clomiphene; Cumulus Cells; Estradiol; Female; Fertility Agen | 2022 |
Fertility preservation for women with breast cancer: a multicentre randomized controlled trial on various ovarian stimulation protocols.
Topics: Breast Neoplasms; Female; Fertility Preservation; Fertilization in Vitro; Gonadotropin-Releasing Hor | 2022 |
Granulocyte colony stimulating factor (GCSF) did not affect the fertility outcomes in women with unexplained infertility after intrauterine insemination: a randomised clinical trial.
Topics: Abortion, Spontaneous; Clomiphene; Cytokines; Female; Fertility; Granulocyte Colony-Stimulating Fact | 2022 |
Probiotic effects on sexual function in women with polycystic ovary syndrome: a double blinded randomized controlled trial.
Topics: Female; Fertility Agents, Female; Humans; Iran; Letrozole; Polycystic Ovary Syndrome; Pregnancy; Pro | 2022 |
A triple-blind, randomized controlled trial, comparing combined letrozole and clomiphene versus only letrozole for ovulation induction in women with polycystic ovarian syndrome.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Ovulation Indu | 2023 |
The impact of letrozole on oocyte quality in assisted reproductive technology (ART); a randomized double-blind clinical trial.
Topics: Female; Fertilization in Vitro; Gonadotropins; Humans; Infertility, Female; Letrozole; Oocytes; Ovar | 2022 |
Ovulation induction using sequential letrozole/gonadotrophin in infertile women with PCOS: a randomized controlled trial.
Topics: Adolescent; Adult; Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility, | 2023 |
Comparison of Three Ovulation Induction Therapies for Patients With Polycystic Ovary Syndrome and Infertility.
Topics: Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Menotropins; Ovulation Ind | 2023 |
Comparing efficacy and safety of stair step protocols for clomiphene citrate and letrozole in ovulation induction for women with polycystic ovary syndrome (PCOS): a randomized controlled clinical trial.
Topics: Child; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Nitrile | 2023 |
Live birth after letrozole-stimulated cycles versus hormone replacement treatment cycles for the first frozen embryo transfer in women with polycystic ovary syndrome: protocol for a multicentre randomised controlled trial.
Topics: Embryo Transfer; Estrogens; Female; Humans; Infant, Newborn; Letrozole; Live Birth; Multicenter Stud | 2023 |
Clomiphene citrate plus letrozole versus clomiphene citrate alone for ovulation induction in infertile women with ovulatory dysfunction: a randomized controlled trial.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Live Birth; Ov | 2023 |
Prospective randomized trial comparing efficacy of letrozole step-up protocol with letrozole plus gonadotropins for controlled ovarian stimulation and intrauterine insemination in patients with unexplained infertility.
Topics: Adult; Aromatase Inhibitors; Female; Gonadotropins; Humans; Infertility, Female; Insemination, Artif | 2019 |
Letrozole and human menopausal gonadotropin for ovulation induction in clomiphene resistance polycystic ovary syndrome patients: A randomized controlled study.
Topics: Abortion, Spontaneous; Adult; Clomiphene; Endometrium; Estradiol; Female; Humans; Infertility, Femal | 2020 |
Comparing the effect of clomiphene citrate and letrozole on ovulation induction in infertile women with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Double-Blind Method; Endometrium; Female; Fertility Agents, | 2020 |
A multicenter randomized trial of personalized acupuncture, fixed acupuncture, letrozole, and placebo letrozole on live birth in infertile women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Acupuncture Therapy; Aromatase Inhibitors; Female; Humans; Infertility, Femal | 2020 |
Effect of misoprostol with and without letrozole on the induction of abortion for women with first-trimester missed abortion.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Missed; Administration, Intravaginal; Adult; Double-Bl | 2020 |
Letrozole versus clomiphene citrate for ovulation induction in anovulatory women with polycystic ovarian syndrome: A randomized controlled trial.
Topics: Adult; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Ovulati | 2021 |
Endometrial thickness after ovarian stimulation with gonadotropin, clomiphene, or letrozole for unexplained infertility, and association with treatment outcomes.
Topics: Adolescent; Adult; Clomiphene; Endometrium; Family Characteristics; Female; Fertility Agents, Female | 2021 |
Evaluation of the effect of trans-vaginal ovarian needle punctures on women with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Administration Schedule; Drug Resistance; Estrogen Ant | 2021 |
The effect of letrozole versus artificial hormonal endometrial preparation on pregnancy outcome after frozen-thawed embryos transfer cycles: a randomized clinical trial.
Topics: Adult; Cryopreservation; Embryo Implantation; Embryo Transfer; Endometrium; Female; Humans; Letrozol | 2020 |
Letrozole Versus Clomiphene Citrate and Natural Cycle: Endometrial Receptivity During Implantation Window in Women With Polycystic Ovary Syndrome.
Topics: Clomiphene; Embryo Implantation; Endometrium; Female; Fertility Agents, Female; Humans; Letrozole; O | 2020 |
Ovulation induction with clomiphene citrate or letrozole following laparoscopy in infertile women with minimal to mild endometriosis: a prospective randomised controlled trial.
Topics: Clomiphene; Endometriosis; Female; Fertility Agents, Female; Humans; Infertility, Female; Laparoscop | 2022 |
Intrauterine insemination (IUI) with or without letrozole for unexplained or mild male factor infertility: A randomized pilot study.
Topics: China; Female; Humans; Infertility; Infertility, Male; Insemination; Insemination, Artificial; Letro | 2021 |
Comparison of clomiphene citrate and letrozole for ovulation induction in women with polycystic ovary syndrome: a prospective randomized trial.
Topics: Adult; Clomiphene; Female; Hormone Antagonists; Humans; Infertility, Female; Letrozole; Nitriles; Ov | 2017 |
[Optimal Ovulation Induction in Polycystic Ovary Syndrome Resistant to Clomiphene Citrate or Letrozole.]
Topics: Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female; Humans; Infertility, Female | 2016 |
Double-blind randomized controlled trial of letrozole versus clomiphene citrate in subfertile women with polycystic ovarian syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2017 |
Clomiphene citrate combined with metformin versus letrozole for induction of ovulation in clomiphene-resistant polycystic ovary syndrome: a randomized clinical trial.
Topics: Adult; Clomiphene; Female; Fertility Agents, Female; Humans; Letrozole; Metformin; Nitriles; Ovulati | 2018 |
Evaluation of effect of letrozole prior to misoprostol in comparison with misoprostol alone in success rate of induced abortion.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Therapeutic; Adult; Aromatase Inhibitors; Case-Control | 2018 |
Intrauterine insemination with ovarian stimulation versus expectant management for unexplained infertility (TUI): a pragmatic, open-label, randomised, controlled, two-centre trial.
Topics: Administration, Oral; Adult; Clomiphene; Drug Administration Schedule; Female; Fertility Agents, Fem | 2018 |
Comparison of modified agonist, mild-stimulation and antagonist protocols for in vitro fertilization in patients with diminished ovarian reserve.
Topics: Adult; Clinical Protocols; Female; Fertility Agents, Female; Fertilization in Vitro; Gonadotropin-Re | 2018 |
The VEGF and PEDF levels in the follicular fluid of patients co- treated with LETROZOLE and gonadotropins during the stimulation cycle.
Topics: Adult; Aromatase Inhibitors; Drug Therapy, Combination; Eye Proteins; Female; Follicular Fluid; Gona | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
Topics: Activities of Daily Living; Acute Disease; Adalimumab; Adaptation, Physiological; Adenosine Triphosp | 2018 |
A randomized controlled trial comparing lifestyle intervention to letrozole for ovulation in women with polycystic ovary syndrome: a study protocol.
Topics: Administration, Oral; Adolescent; Adult; Diet, Healthy; Exercise; Female; Fertility Agents, Female; | 2018 |
A randomized controlled trial of combination letrozole and clomiphene citrate or letrozole alone for ovulation induction in women with polycystic ovary syndrome.
Topics: Adolescent; Adult; Age Factors; Biomarkers; Body Mass Index; Clomiphene; Female; Fertility; Fertilit | 2019 |
The effectiveness of inositol and metformin on infertile polycystic ovary syndrome women with resistant to letrozole.
Topics: Adult; Female; Folic Acid; Humans; Infertility, Female; Inositol; Letrozole; Metformin; Ovulation In | 2019 |
Letrozole supplementation during controlled ovarian stimulation in expected high responders: a pilot randomized controlled study.
Topics: Adult; Chorionic Gonadotropin; Estradiol; Female; Gonadotropin-Releasing Hormone; Humans; Letrozole; | 2019 |
Letrozole usage adjuvant to gonadotropins for ovulation induction for patients with clomiphene citrate failure.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Endometrium; Estradiol; Female; | 2013 |
Efficacy of combined therapy of goserelin and letrozole on very young women with advanced breast cancer as first-line endocrine therapy.
Topics: Adolescent; Adult; Age of Onset; Antineoplastic Agents, Hormonal; Antineoplastic Combined Chemothera | 2013 |
Evaluation of low-dose letrozole addition to ovulation induction in IVF.
Topics: Adult; Aromatase Inhibitors; Female; Fertilization in Vitro; Gonadotropins; Humans; Letrozole; Male; | 2013 |
The effect of letrozole with misoprostol for medical termination of pregnancy on the expression of steroid receptors in the placenta.
Topics: Abortifacient Agents; Abortion, Induced; Apoptosis; Estrogen Receptor alpha; Female; Gene Expression | 2013 |
Letrozole ovulation induction: an effective option in endometrial preparation for frozen-thawed embryo transfer.
Topics: Abortion, Spontaneous; Adult; Aromatase Inhibitors; Birth Rate; Case-Control Studies; China; Cryopre | 2014 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
Combined letrozole and clomiphene versus letrozole and clomiphene alone in infertile patients with polycystic ovary syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Fertility Agents, Female | 2013 |
An effective alternative to only gonadotrophin for controlled ovarian stimulation in unexplained infertility patients undergoing intra-uterine insemination: a clinical trial.
Topics: Adult; Aromatase Inhibitors; Drug Therapy, Combination; Female; Follicle Stimulating Hormone; Humans | 2013 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Letrozole versus clomiphene for infertility in the polycystic ovary syndrome.
Topics: Adult; Clomiphene; Double-Blind Method; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2014 |
Effects of combining low‑dose aspirin with a Chinese patent medicine on follicular blood flow and pregnancy outcome.
Topics: Adult; Aspirin; Drug Therapy, Combination; Drugs, Chinese Herbal; Endometrium; Female; Fertility Age | 2014 |
Assessment of multiple intrauterine gestations from ovarian stimulation (AMIGOS) trial: baseline characteristics.
Topics: Adult; Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility, Female; Let | 2015 |
Impact of Male and Female Weight, Smoking, and Intercourse Frequency on Live Birth in Women With Polycystic Ovary Syndrome.
Topics: Adolescent; Adult; Body Mass Index; Body Weight; Clomiphene; Coitus; Female; Fertility Agents, Femal | 2015 |
Letrozole, Gonadotropin, or Clomiphene for Unexplained Infertility.
Topics: Adolescent; Adult; Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility, | 2015 |
Effects of Letrozole-HMG and Clomiphene-HMG on Incidence of Luteinized Unruptured Follicle Syndrome in Infertile Women Undergoing Induction Ovulation and Intrauterine Insemination: A Randomised Trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Female; Follicular Phase; Humans; | 2015 |
Comparison of GnRh Agonist Microdose Flare Up and GnRh Antagonist/Letrozole in Treatment of Poor Responder Patients in Intra Cytoplaspic Sperm Injection: Randomized Clinical Trial.
Topics: Adult; Aromatase Inhibitors; Female; Gonadotropin-Releasing Hormone; Humans; Letrozole; Nitriles; Ov | 2015 |
Use of letrozole and clomiphene citrate combined with gonadotropins in clomiphene-resistant infertile women with polycystic ovary syndrome: a prospective study.
Topics: Adult; Clomiphene; Dose-Response Relationship, Drug; Drug Therapy, Combination; Female; Fertility Ag | 2015 |
Comparison of the effects of letrozole and cabergoline on vascular permeability, ovarian diameter, ovarian tissue VEGF levels, and blood PEDF levels, in a rat model of ovarian hyperstimulation syndrome.
Topics: Animals; Cabergoline; Capillary Permeability; Chorionic Gonadotropin; Ergolines; Eye Proteins; Femal | 2016 |
The effect of 7 days of letrozole pretreatment combined with misoprostol on the expression of progesterone receptor and apoptotic factors of placental and decidual tissues from first-trimester abortion: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Apoptosis; Biomarkers; Decidua; Double | 2016 |
The effect of 7 days of letrozole pretreatment combined with misoprostol on the expression of progesterone receptor and apoptotic factors of placental and decidual tissues from first-trimester abortion: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Apoptosis; Biomarkers; Decidua; Double | 2016 |
The effect of 7 days of letrozole pretreatment combined with misoprostol on the expression of progesterone receptor and apoptotic factors of placental and decidual tissues from first-trimester abortion: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Apoptosis; Biomarkers; Decidua; Double | 2016 |
The effect of 7 days of letrozole pretreatment combined with misoprostol on the expression of progesterone receptor and apoptotic factors of placental and decidual tissues from first-trimester abortion: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Apoptosis; Biomarkers; Decidua; Double | 2016 |
A randomized, single-blind, prospective trial comparing three different gonadotropin doses with or without addition of letrozole during ovulation stimulation in patients with poor ovarian response.
Topics: Adolescent; Adult; Dose-Response Relationship, Drug; Drug Therapy, Combination; Embryo Transfer; Fem | 2016 |
Randomized controlled trial of letrozole, berberine, or a combination for infertility in the polycystic ovary syndrome.
Topics: Administration, Oral; Adult; Berberine; China; Double-Blind Method; Drug Administration Schedule; Dr | 2016 |
Cost effectiveness of letrozole and purified urinary FSH in treating women with clomiphene citrate-resistant polycystic ovarian syndrome: a randomized controlled trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cost-Benefit Analysis; Drug Therapy, Combination; Female; F | 2017 |
Endocrine changes, fetal growth, and uterine artery hemodynamics after chronic estrogen suppression during the last trimester of equine pregnancy.
Topics: Animals; Aromatase Inhibitors; Estrogens; Female; Fetal Development; Hemodynamics; Horses; Letrozole | 2017 |
Endometrial effects of letrozole and clomiphene citrate in women with polycystic ovary syndrome using spiral artery Doppler.
Topics: Adult; Clomiphene; Endometrium; Female; Fertility Agents, Female; Humans; Letrozole; Nitriles; Ovari | 2009 |
RETRACTED: Clomiphene citrate or aromatase inhibitors for superovulation in women with unexplained infertility undergoing intrauterine insemination: a prospective randomized trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Fema | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Extended letrozole therapy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a novel protocol.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Estrogen Antagonists; Female; | 2009 |
Pregnancy outcome after ovulation induction with aromatase inhibitors or clomiphene citrate in unexplained infertility.
Topics: Abortion, Spontaneous; Adult; Anastrozole; Aromatase Inhibitors; Clomiphene; Female; Fertility Agent | 2009 |
Comparison of letrozole with continuous gonadotropins and clomiphene-gonadotropin combination for ovulation induction in 1387 PCOS women after clomiphene citrate failure: a randomized prospective clinical trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Estradiol; Female; Fertility Age | 2009 |
RETRACTED: Letrozole versus combined metformin and clomiphene citrate for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a randomized controlled trial.
Topics: Adult; Algorithms; Clomiphene; Drug Combinations; Drug Resistance; Female; Fertility Agents, Female; | 2010 |
Use of aromatase inhibitors in poor-responder patients receiving GnRH antagonist protocols.
Topics: Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Female; Follicle Stimulating Hormone; Gonadotro | 2009 |
Letrozole versus laparoscopic ovarian diathermy for ovulation induction in clomiphene-resistant women with polycystic ovary syndrome: a randomized controlled trial.
Topics: Adult; Aromatase Inhibitors; Diathermy; Female; Humans; Letrozole; Nitriles; Ovulation Induction; Po | 2010 |
Aromatase inhibitors in women with clomiphene citrate resistance: a randomized, double-blind, placebo-controlled trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Double-Blind Method; Drug Resistance; Female; Fertility Age | 2010 |
A comparison of the effect of short-term aromatase inhibitor (letrozole) and GnRH agonist (triptorelin) versus case control on pregnancy rate and symptom and sign recurrence after laparoscopic treatment of endometriosis.
Topics: Adult; Aromatase Inhibitors; Endometriosis; Female; Gonadotropin-Releasing Hormone; Humans; Infertil | 2011 |
Clomiphene citrate or aromatase inhibitors combined with gonadotropins for superovulation in women undergoing intrauterine insemination: a prospective randomised trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Therapy, Combination; Female; Follicle Stimulating Hor | 2010 |
GnRH antagonist/letrozole versus microdose GnRH agonist flare protocol in poor responders undergoing in vitro fertilization.
Topics: Adult; Aromatase Inhibitors; Contraceptives, Oral; Dose-Response Relationship, Drug; Drug Therapy, C | 2010 |
A pilot study on the use of letrozole with either misoprostol or mifepristone for termination of pregnancy up to 63 days.
Topics: Abortifacient Agents; Abortion, Induced; Adolescent; Adult; Estradiol; Female; Humans; Hydrocortison | 2011 |
A pilot study on the use of letrozole with either misoprostol or mifepristone for termination of pregnancy up to 63 days.
Topics: Abortifacient Agents; Abortion, Induced; Adolescent; Adult; Estradiol; Female; Humans; Hydrocortison | 2011 |
A pilot study on the use of letrozole with either misoprostol or mifepristone for termination of pregnancy up to 63 days.
Topics: Abortifacient Agents; Abortion, Induced; Adolescent; Adult; Estradiol; Female; Humans; Hydrocortison | 2011 |
A pilot study on the use of letrozole with either misoprostol or mifepristone for termination of pregnancy up to 63 days.
Topics: Abortifacient Agents; Abortion, Induced; Adolescent; Adult; Estradiol; Female; Humans; Hydrocortison | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Misoprostol with or without letrozole pretreatment for termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Reproductive outcome after letrozole versus laparoscopic ovarian drilling for clomiphene-resistant polycystic ovary syndrome.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Drug Administration Schedule; Drug Resistance; | 2011 |
Extended letrozole regimen versus clomiphene citrate for superovulation in patients with unexplained infertility undergoing intrauterine insemination: a randomized controlled trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, Female; Insemination; Letrozol | 2011 |
Extended letrozole regimen versus clomiphene citrate for superovulation in patients with unexplained infertility undergoing intrauterine insemination: a randomized controlled trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, Female; Insemination; Letrozol | 2011 |
Extended letrozole regimen versus clomiphene citrate for superovulation in patients with unexplained infertility undergoing intrauterine insemination: a randomized controlled trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, Female; Insemination; Letrozol | 2011 |
Extended letrozole regimen versus clomiphene citrate for superovulation in patients with unexplained infertility undergoing intrauterine insemination: a randomized controlled trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, Female; Insemination; Letrozol | 2011 |
Extended high dose letrozole regimen versus short low dose letrozole regimen as an adjuvant to gonadotropin releasing hormone antagonist protocol in poor responders undergoing IVF-ET.
Topics: Adjuvants, Pharmaceutic; Adult; Cost-Benefit Analysis; Dose-Response Relationship, Drug; Drug Admini | 2011 |
A randomized trial of ovulation induction with two different doses of Letrozole in women with PCOS.
Topics: Adult; Coitus; Drug Administration Schedule; Female; Fertility Agents, Female; Humans; Letrozole; Me | 2011 |
Sequential use of letrozole and gonadotrophin in women with poor ovarian reserve: a randomized controlled trial.
Topics: Adult; Androstenedione; Anti-Mullerian Hormone; Aromatase Inhibitors; Estradiol; Female; Fertilizati | 2011 |
Estimating rates of multiple gestation pregnancies: sample size calculation from the assessment of multiple intrauterine gestations from ovarian stimulation (AMIGOS) trial.
Topics: Adolescent; Adult; Aromatase Inhibitors; Clomiphene; Dose-Response Relationship, Drug; Double-Blind | 2011 |
Comparison of efficacy of letrozole and clomiphene citrate in ovulation induction in Indian women with polycystic ovarian syndrome.
Topics: Adult; Chorionic Gonadotropin; Clomiphene; Endometrium; Estradiol; Female; Fertility Agents, Female; | 2012 |
A prospective double-blinded, randomized, placebo-controlled trial on the use of letrozole pretreatment with misoprostol for second-trimester medical abortion.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Double-Blind Met | 2011 |
Randomized comparison of superovulation with letrozole vs. clomiphene citrate in an IUI program for women with recently surgically treated minimal to mild endometriosis.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Administration Schedule; Endometriosis; Female; Fertil | 2012 |
The Pregnancy in Polycystic Ovary Syndrome II (PPCOS II) trial: rationale and design of a double-blind randomized trial of clomiphene citrate and letrozole for the treatment of infertility in women with polycystic ovary syndrome.
Topics: Adolescent; Adult; Antineoplastic Agents; Chi-Square Distribution; Clomiphene; Double-Blind Method; | 2012 |
Comparison of treatment outcomes of infertile women by clomiphene citrate and letrozole with gonadotropins underwent intrauterine insemination.
Topics: Adult; Clomiphene; Female; Fertility; Fertility Agents, Female; Gonadotropins; Humans; Infertility, | 2012 |
Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Chorionic Gonadotropin; Estradiol; Fem | 2012 |
Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Chorionic Gonadotropin; Estradiol; Fem | 2012 |
Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Chorionic Gonadotropin; Estradiol; Fem | 2012 |
Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Chorionic Gonadotropin; Estradiol; Fem | 2012 |
Effect of letrozole on uterine tonus and contractility: a randomized controlled trial.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Administration, Intravaginal; Administration, | 2012 |
A pilot study on the use of a 7-day course of letrozole followed by misoprostol for the termination of early pregnancy up to 63 days.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Adult; Aromatase Inhibitors; Chorionic Gonado | 2012 |
Letrozole versus clomiphene citrate for superovulation in Egyptian women with unexplained infertility: a randomized controlled trial.
Topics: Adult; Chi-Square Distribution; Chorionic Gonadotropin; Clomiphene; Egypt; Endometrium; Endosonograp | 2012 |
A new look at tamoxifen: co-administration with letrozole in intrauterine insemination cycles.
Topics: Adult; Double-Blind Method; Drug Administration Schedule; Drug Therapy, Combination; Female; Fertili | 2013 |
Is letrozole superior to clomiphene for ovarian stimulation prior to intrauterine insemination?
Topics: Adult; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Insemination, Arti | 2013 |
Minimal stimulation protocol using letrozole versus microdose flare up GnRH agonist protocol in women with poor ovarian response undergoing ICSI.
Topics: Adult; Aromatase Inhibitors; Drug Resistance; Egypt; Estradiol; Female; Fertility Agents, Female; Fe | 2013 |
Efficacy of combined metformin-letrozole in comparison with bilateral ovarian drilling in clomiphene-resistant infertile women with polycystic ovarian syndrome.
Topics: Adult; Aromatase Inhibitors; Blood Glucose; Clomiphene; Drug Therapy, Combination; Female; Fertility | 2013 |
A randomized single-blind controlled trial of letrozole as a low-cost IVF protocol in women with poor ovarian response: a preliminary report.
Topics: Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Cost Control; Dose-Response Relationship, Drug; | 2004 |
A randomized trial of letrozole versus clomiphene citrate in women undergoing superovulation.
Topics: Abortion, Spontaneous; Adult; Aromatase Inhibitors; Clomiphene; Endometrium; Female; Fertility Agent | 2004 |
A randomized trial of superovulation with two different doses of letrozole.
Topics: Adult; Aromatase Inhibitors; Endometrium; Female; Humans; Insemination, Artificial; Letrozole; Nitri | 2006 |
Efficacy of combined metformin-letrozole in comparison with metformin-clomiphene citrate in clomiphene-resistant infertile women with polycystic ovarian disease.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Resistance; Drug Therapy, Combination; Endometrium; Fe | 2006 |
Use of letrozole versus clomiphene citrate combined with gonadotropins in intrauterine insemination cycles: a pilot study.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Combinations; Female; Fertility Agents, Female; Gonado | 2006 |
Cost-effectiveness of aromatase inhibitor co-treatment for controlled ovarian stimulation.
Topics: Aromatase Inhibitors; Cost-Benefit Analysis; Costs and Cost Analysis; Endometrium; Female; Follicle | 2006 |
Letrozole versus human menopausal gonadotrophin in women undergoing intrauterine insemination.
Topics: Adult; Aromatase Inhibitors; Endometrium; Female; Follicular Phase; Humans; Infertility, Female; Ins | 2006 |
Preliminary experience with a low-cost stimulation protocol that includes letrozole and human menopausal gonadotropins in normal responders for assisted reproductive technologies.
Topics: Adult; Chemotherapy, Adjuvant; Drug Combinations; Female; Humans; Infertility; Letrozole; Menotropin | 2006 |
Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphene citrate as adjuvants to recombinant follicle-stimulating hormone in controlled ovarian hyperstimulation: a prospective, randomized, blinded clinical trial.
Topics: Adult; Aromatase Inhibitors; Chemotherapy, Adjuvant; Clomiphene; Drug Combinations; Female; Fertilit | 2006 |
Role of aromatase inhibitor in ovulation induction in patients with poor response to clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, Female; Letrozole; Nitriles; O | 2006 |
Follicular phase dynamics with combined aromatase inhibitor and follicle stimulating hormone treatment.
Topics: Adult; Aromatase Inhibitors; Dose-Response Relationship, Drug; Drug Therapy, Combination; Endometriu | 2007 |
Management of poor responders: can outcomes be improved with a novel gonadotropin-releasing hormone antagonist/letrozole protocol?
Topics: Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Dose-Response Relationship, Drug; Drug Administ | 2008 |
Randomized controlled trial of three doses of letrozole for ovulation induction in patients with unexplained infertility.
Topics: Adult; Aromatase Inhibitors; Female; Humans; Infertility, Female; Letrozole; Nitriles; Ovulation Ind | 2007 |
RETRACTED: Clomiphene citrate or letrozole for ovulation induction in women with polycystic ovarian syndrome: a prospective randomized trial.
Topics: Abortion, Spontaneous; Adult; Aromatase Inhibitors; Clomiphene; Dose-Response Relationship, Drug; En | 2009 |
RETRACTED: Anastrozole or letrozole for ovulation induction in clomiphene-resistant women with polycystic ovarian syndrome: a prospective randomized trial.
Topics: Abortion, Spontaneous; Adult; Anastrozole; Aromatase Inhibitors; Clomiphene; Drug Resistance; Endome | 2008 |
Randomized controlled trial comparing superovulation with letrozole versus recombinant follicle-stimulating hormone combined with intrauterine insemination for couples with unexplained infertility who had failed clomiphene citrate stimulation and intraute
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Female; Follicle Stimulating Horm | 2008 |
Effectiveness of cetrorelix for the prevention of premature luteinizing hormone surge during controlled ovarian stimulation using letrozole and gonadotropins: a randomized trial.
Topics: Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Drug Therapy, Combination; Female; Fertility Ag | 2008 |
A comparison of letrozole to gonadotropins for ovulation induction in subjects with advanced maternal age: a retrospective pilot study.
Topics: Adult; Aromatase Inhibitors; Female; Gonadotropins; Humans; Infertility, Female; Letrozole; Middle A | 2008 |
Comparison of efficacy of aromatase inhibitor and clomiphene citrate in induction of ovulation in polycystic ovarian syndrome.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Dose-Response Relationship, Drug; Endometrium; Female; Fert | 2009 |
Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Gonadotropins; Humans; Letrozole; Nitriles; Ovary; | 2008 |
Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Gonadotropins; Humans; Letrozole; Nitriles; Ovary; | 2008 |
Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Gonadotropins; Humans; Letrozole; Nitriles; Ovary; | 2008 |
Comparison of the efficacy of the aromatase inhibitor letrozole and clomiphen citrate gonadotropins in controlled ovarian hyperstimulation: a prospective, simply randomized, clinical trial.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Gonadotropins; Humans; Letrozole; Nitriles; Ovary; | 2008 |
Use of an aromatase inhibitor for induction of ovulation in patients with an inadequate response to clomiphene citrate.
Topics: Anovulation; Aromatase Inhibitors; Chorionic Gonadotropin; Endometrium; Enzyme Inhibitors; Estradiol | 2001 |
Aromatase inhibition improves ovarian response to follicle-stimulating hormone in poor responders.
Topics: Aromatase Inhibitors; Chorionic Gonadotropin; Cohort Studies; Endometrium; Enzyme Inhibitors; Estrad | 2002 |
187 other studies available for letrozole and Pregnancy
| Article | Year |
|---|---|
Novel aromatase inhibitors by structure-guided design.
Topics: Androstadienes; Antineoplastic Agents; Aromatase Inhibitors; Cell Line, Tumor; Crystallography, X-Ra | 2012 |
Prednisone combined with letrozole reduced risk of ovarian hyperstimulation syndrome (OHSS) in women undergoing long-term gonadotropin-releasing hormone analog treatment.
Topics: Female; Gonadotropin-Releasing Hormone; Humans; Letrozole; Ovarian Hyperstimulation Syndrome; Ovulat | 2021 |
Influence of hormonal imbalance on the integrity of seminiferous epithelium in the testes of adult rats chronically exposed to letrozole and rats exposed to soya isoflavones during the prenatal period, lactation, and up to sexual maturity.
Topics: Animals; Blood-Testis Barrier; Estrogens; Female; Glycation End Products, Advanced; Intercellular Ju | 2021 |
Frozen Embryo Transfer in Mildly Stimulated Cycle With Letrozole Compared to Natural Cycle in Ovulatory Women: A Large Retrospective Study.
Topics: Adult; Aromatase Inhibitors; Cryopreservation; Embryo Transfer; Female; Humans; Infertility, Female; | 2021 |
Progestin-primed ovarian stimulation protocol with or without letrozole for patients with normal ovarian reserve: a retrospective cohort study.
Topics: Female; Humans; Letrozole; Medroxyprogesterone Acetate; Ovarian Reserve; Ovulation Induction; Pregna | 2022 |
Estrogens Regulate Placental Angiogenesis in Horses.
Topics: Androstenedione; Angiopoietin-1; Animals; Aromatase; Estrogens; Female; Gene Expression Regulation, | 2021 |
Letrozole promotes the expression of integrin αvβ3 and HOXA10 in endometrium of endometriosis.
Topics: Animals; Embryo Implantation; Endometriosis; Endometrium; Female; Homeobox A10 Proteins; Humans; Inf | 2022 |
Emulating a target trial of the comparative effectiveness of clomiphene citrate and letrozole for ovulation induction.
Topics: Adolescent; Adult; Child; Clomiphene; Female; Fertility Agents, Female; Humans; Infant, Newborn; Inf | 2022 |
Co-Administration of Clomiphene Citrate and Letrozole in Mild Ovarian Stimulation Versus Conventional Controlled Ovarian Stimulation Among POSEIDON Group 4 Patients.
Topics: Adult; Clomiphene; Drug Therapy, Combination; Embryo Transfer; Female; Fertility Agents, Female; Fer | 2021 |
Retrospective cohort study on preparation regimens for frozen embryo transfer.
Topics: Abortion, Spontaneous; Cryopreservation; Embryo Transfer; Female; Follicle Stimulating Hormone; Huma | 2021 |
Progestin-Primed Ovarian Stimulation Versus Mild Stimulation Protocol in Advanced Age Women With Diminished Ovarian Reserve Undergoing Their First
Topics: Adult; Chorionic Gonadotropin; Clomiphene; Cohort Studies; Dydrogesterone; Female; Fertility Agents, | 2021 |
Delayed Implantation Induced by Letrozole in Mice.
Topics: Animals; Embryo Implantation; Estradiol; Estrogens; Female; Letrozole; Mice; Pregnancy; Progesterone | 2022 |
Estrogen Promotes Microvascularization in the Fetus and Thus Vascular Function and Insulin Sensitivity in Offspring.
Topics: Animals; Estradiol; Estrogens; Female; Fetus; Glucose; Insulin; Insulin Resistance; Letrozole; Nitri | 2022 |
Comparison of Perinatal Outcomes of Letrozole-Induced Ovulation and Hormone Replacement Therapy Protocols in Patients With Abnormal Ovulation Undergoing Frozen-Thawed Embryo Transfer: A Propensity Score Matching Analysis.
Topics: Cryopreservation; Embryo Transfer; Female; Hormone Replacement Therapy; Humans; Infant, Newborn; Let | 2022 |
Development of a letrozole-based synchronization protocol for fixed-time artificial insemination in beef cattle.
Topics: Animals; Cattle; Dinoprost; Estrus Synchronization; Female; Gonadotropin-Releasing Hormone; Insemina | 2022 |
Effects of letrozole co-treatment on outcomes of gonadotropin-releasing hormone antagonist cycles in POSEIDON groups 3 and 4 expected poor responders.
Topics: Female; Fertilization in Vitro; Gonadotropin-Releasing Hormone; Hormone Antagonists; Humans; Letrozo | 2022 |
Efficacy of Letrozole Combined with Urinary Gonadotropin for Ovulation Induction in Endocrine Abnormal Infertility Patients: A Retrospective Single-Center, Case-Control Study.
Topics: Case-Control Studies; Child; Female; Gonadotropins; Humans; Infertility, Female; Letrozole; Menotrop | 2022 |
Pregnancy outcomes after frozen-thawed embryo transfer using letrozole ovulation induction, natural, or programmed cycles.
Topics: Cryopreservation; Embryo Transfer; Female; Humans; Letrozole; Ovulation Induction; Pregnancy; Pregna | 2022 |
Ovulation induction regimens are associated with a higher rate of livebirth after frozen single-blastocyst transfer among women with polycystic ovary syndrome.
Topics: Abortion, Spontaneous; Embryo Transfer; Female; Humans; Infant, Newborn; Letrozole; Menotropins; Ovu | 2022 |
Comparison of different endometrial preparation protocols on frozen embryo transfer pregnancy outcome in patients with normal ovulation.
Topics: Cryopreservation; Embryo Transfer; Female; Humans; Infertility, Female; Letrozole; Live Birth; Ovula | 2022 |
The Disparity in the Management of Polycystic Ovary Syndrome between Obstetrician-Gynecologists in Different-Level Hospitals under the Hierarchical Medical System.
Topics: Androgens; Blood Glucose; Female; Hospitals; Humans; Insulin Resistance; Letrozole; Lipids; Metformi | 2022 |
Extending letrozole treatment duration is effective in inducing ovulation in women with polycystic ovary syndrome and letrozole resistance.
Topics: Clomiphene; Duration of Therapy; Female; Fertility Agents, Female; Humans; Infertility, Female; Letr | 2023 |
Letrozole-induced endometrial preparation improved the pregnancy outcomes after frozen blastocyst transfer compared to the natural cycle: a retrospective cohort study.
Topics: Cohort Studies; Cryopreservation; Embryo Transfer; Female; Humans; Letrozole; Live Birth; Pregnancy; | 2022 |
Oncological and reproductive outcomes for gonadotropin-releasing hormone agonist combined with aromatase inhibitors or levonorgestrel-releasing intra-uterine system in women with endometrial cancer or atypical endometrial hyperplasia.
Topics: Aromatase Inhibitors; Endometrial Hyperplasia; Endometrial Neoplasms; Female; Gonadotropin-Releasing | 2022 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Luteal phase support with progesterone does not improve pregnancy rates in patients undergoing ovarian stimulation with letrozole.
Topics: Female; Humans; Letrozole; Luteal Phase; Ovulation Induction; Pregnancy; Pregnancy Rate; Progesteron | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Pituitary suppression with GnRH agonists before ART may be insufficient to treat women with severe adenomyosis.
Topics: Adenomyosis; Aromatase Inhibitors; Estradiol; Estrogens; Female; Fertilization in Vitro; Gonadotropi | 2023 |
Optimal lead follicle size in letrozole human menopausal gonadotrophin intrauterine insemination cycles with and without spontaneous LH surge.
Topics: Female; Humans; Infertility; Insemination, Artificial; Letrozole; Menopause; Menotropins; Ovulation | 2023 |
Optimal lead follicle size in letrozole human menopausal gonadotrophin intrauterine insemination cycles with and without spontaneous LH surge.
Topics: Female; Humans; Infertility; Insemination, Artificial; Letrozole; Menopause; Menotropins; Ovulation | 2023 |
Optimal lead follicle size in letrozole human menopausal gonadotrophin intrauterine insemination cycles with and without spontaneous LH surge.
Topics: Female; Humans; Infertility; Insemination, Artificial; Letrozole; Menopause; Menotropins; Ovulation | 2023 |
Optimal lead follicle size in letrozole human menopausal gonadotrophin intrauterine insemination cycles with and without spontaneous LH surge.
Topics: Female; Humans; Infertility; Insemination, Artificial; Letrozole; Menopause; Menotropins; Ovulation | 2023 |
Esr1 but Not CYP19A1 Overexpression in Mammary Epithelial Cells during Reproductive Senescence Induces Pregnancy-Like Proliferative Mammary Disease Responsive to Anti-Hormonals.
Topics: Animals; Aromatase; Epithelial Cells; Estrogen Receptor alpha; Estrogens; Female; Gene Expression; L | 2023 |
Esr1 but Not CYP19A1 Overexpression in Mammary Epithelial Cells during Reproductive Senescence Induces Pregnancy-Like Proliferative Mammary Disease Responsive to Anti-Hormonals.
Topics: Animals; Aromatase; Epithelial Cells; Estrogen Receptor alpha; Estrogens; Female; Gene Expression; L | 2023 |
Esr1 but Not CYP19A1 Overexpression in Mammary Epithelial Cells during Reproductive Senescence Induces Pregnancy-Like Proliferative Mammary Disease Responsive to Anti-Hormonals.
Topics: Animals; Aromatase; Epithelial Cells; Estrogen Receptor alpha; Estrogens; Female; Gene Expression; L | 2023 |
Esr1 but Not CYP19A1 Overexpression in Mammary Epithelial Cells during Reproductive Senescence Induces Pregnancy-Like Proliferative Mammary Disease Responsive to Anti-Hormonals.
Topics: Animals; Aromatase; Epithelial Cells; Estrogen Receptor alpha; Estrogens; Female; Gene Expression; L | 2023 |
Effect of different timing of letrozole initiation on pregnancy outcome in polycystic ovary syndrome.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Nitriles; Poly | 2022 |
Effect of different timing of letrozole initiation on pregnancy outcome in polycystic ovary syndrome.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Nitriles; Poly | 2022 |
Effect of different timing of letrozole initiation on pregnancy outcome in polycystic ovary syndrome.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Nitriles; Poly | 2022 |
Effect of different timing of letrozole initiation on pregnancy outcome in polycystic ovary syndrome.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Nitriles; Poly | 2022 |
Single dose letrozole and misoprostol for termination of pregnancy through 63 days' gestation: A pilot study.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Administration, Intravaginal; Female; Humans; | 2023 |
Single dose letrozole and misoprostol for termination of pregnancy through 63 days' gestation: A pilot study.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Administration, Intravaginal; Female; Humans; | 2023 |
Single dose letrozole and misoprostol for termination of pregnancy through 63 days' gestation: A pilot study.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Administration, Intravaginal; Female; Humans; | 2023 |
Single dose letrozole and misoprostol for termination of pregnancy through 63 days' gestation: A pilot study.
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Administration, Intravaginal; Female; Humans; | 2023 |
Retrospective analysis: The application of human menopausal gonadotropin combined with letrozole for IUI in patients undergoing artificial insemination by husband due to unexplained or mild male factors.
Topics: Female; Humans; Infertility; Insemination, Artificial; Letrozole; Male; Menotropins; Pregnancy; Retr | 2022 |
Live birth associated with peak serum estradiol levels in letrozole intrauterine insemination cycles.
Topics: Chorionic Gonadotropin; Estradiol; Female; Humans; Insemination; Insemination, Artificial; Letrozole | 2023 |
Ovarian Response can be Predicted in Women with PCOS who have Ovulation Induction with Letrozole.
Topics: Cohort Studies; Female; Fertility Agents, Female; Follicle Stimulating Hormone; Humans; Infertility, | 2023 |
Comparison of pregnancy outcomes of letrozole-induced frozen-thawed embryo transfer cycles in PCOS women with two different abnormal ovulation patterns: A retrospective cohort study.
Topics: Abortion, Spontaneous; Embryo Transfer; Female; Humans; Letrozole; Ovulation; Ovulation Induction; P | 2023 |
Pregnancy and neonatal outcomes of letrozole versus natural cycle frozen embryo transfer of autologous euploid blastocyst.
Topics: Blastocyst; Cryopreservation; Embryo Transfer; Female; Humans; Infant, Newborn; Letrozole; Pregnancy | 2023 |
Letrozole cotreatment improves the follicular output rate in high-body-mass-index women with polycystic ovary syndrome undergoing IVF treatment.
Topics: Body Mass Index; Female; Fertilization in Vitro; Humans; Infertility, Female; Letrozole; Polycystic | 2023 |
Effectiveness of letrozole in pituitary downregulated normogonadotrophic young women with an initial poor response.
Topics: Chorionic Gonadotropin; Female; Fertilization in Vitro; Follicle Stimulating Hormone; Gonadotropin-R | 2023 |
Predictors of response to ovulation induction using letrozole in women with polycystic ovary syndrome.
Topics: Female; Fertility Agents, Female; Follicle Stimulating Hormone; Humans; Letrozole; Luteinizing Hormo | 2023 |
Ovulation induction with letrozole and dexamethasone in infertile patients with letrozole-resistant polycystic ovary syndrome.
Topics: Clomiphene; Dexamethasone; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; | 2023 |
The effect of gonadotrophin-releasing hormone agonist versus human chorionic gonadotrophin trigger on pregnancy and neonatal outcomes in Letrozole-HMG IUI cycles.
Topics: Abortion, Spontaneous; Chorionic Gonadotropin; Female; Fertilization in Vitro; Gonadotropin-Releasin | 2023 |
Outcomes of random-start letrozole protocol with PGT-A in women with breast cancer undergoing fertility preservation.
Topics: Adult; Breast Neoplasms; Cryopreservation; Female; Fertility Preservation; Humans; Letrozole; Ovulat | 2023 |
Impact of letrozole co-treatment during ovarian stimulation on oocyte yield, embryo development, and live birth rate in women with normal ovarian reserve: secondary outcomes from the RIOT trial.
Topics: Birth Rate; Embryonic Development; Estradiol; Female; Fertilization in Vitro; Follicle Stimulating H | 2023 |
The effect of letrozole overlapped with gonadotropin on IVF outcomes in women with DOR or aged over 40 years old with repeated cycles.
Topics: Adult; Aged; Female; Fertilization in Vitro; Gonadotropin-Releasing Hormone; Gonadotropins; Hormone | 2023 |
Letrozole use in vitrified single-blastocyst transfer cycles is associated with lower risk of large for gestational age infants in patients with polycystic ovary syndrome.
Topics: Cryopreservation; Embryo Transfer; Female; Humans; Infant, Large for Gestational Age; Infant, Newbor | 2023 |
Association between follicle size, endometrial thickness, and types of ovarian stimulation (Clomiphene citrate and Letrozole) with biochemical pregnancy rate in women undergone intrauterine insemination.
Topics: Case-Control Studies; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Ins | 2023 |
Letrozole-stimulated endometrial preparation protocol is a superior alternative to hormone replacement treatment for frozen embryo transfer in women with polycystic ovary syndrome, a cohort study.
Topics: Abortion, Spontaneous; Adult; Cohort Studies; Cryopreservation; Diabetes, Gestational; Embryo Transf | 2023 |
Impact of 2.5 mg versus 5 mg letrozole co-treatment in an antagonist protocol for IVF: a retrospective study.
Topics: China; Female; Fertilization in Vitro; Gonadotropin-Releasing Hormone; Humans; Infant, Newborn; Infe | 2023 |
Pregnancy And Neonatal Outcomes Of hMG Stimulation With Or Without Letrozole In Endometrial Preparation For Frozen-Thawed Embryo Transfer In Ovulatory Women: A Large Retrospective Cohort Study.
Topics: Adult; Cohort Studies; Cryopreservation; Embryo Transfer; Endometrium; Female; Humans; Letrozole; Me | 2019 |
IVF stimulation in pregnancy: lessons to be learned with implications for the luteal phase start IVF cycle.
Topics: Female; Fertility Preservation; Humans; Letrozole; Luteal Phase; Oocyte Retrieval; Ovulation Inducti | 2020 |
The effect of intra-ovarian androgen priming on ovarian reserve parameters in Bologna poor responders.
Topics: Adolescent; Adult; Anti-Mullerian Hormone; Aromatase Inhibitors; Chorionic Gonadotropin; Female; Fer | 2020 |
Investigating the impact of fertility treatment on child health: the struggle is real!
Topics: Child; Child Health; Clomiphene; Follow-Up Studies; Gonadotropins; Humans; Letrozole; Pregnancy; Reg | 2020 |
Pregnancy registry: three-year follow-up of children conceived from letrozole, clomiphene, or gonadotropins.
Topics: Adult; Age Factors; Child Behavior; Child Development; Child, Preschool; Clomiphene; Cognition; Fema | 2020 |
Successful live birth in a woman with resistant ovary syndrome treated with letrozole and HMG: A case report.
Topics: Adult; Aromatase Inhibitors; Drug Therapy, Combination; Female; Gonadotropins; Humans; Infertility, | 2020 |
Lack of interaction between prenatal stress and prenatal letrozole to induce same-sex preference in male rats.
Topics: Animals; Ejaculation; Estradiol; Female; Letrozole; Male; Pregnancy; Prenatal Exposure Delayed Effec | 2020 |
Letrozole: future alternative to methotrexate for treatment of ectopic pregnancy?
Topics: Abortifacient Agents, Nonsteroidal; Aromatase Inhibitors; Female; Humans; Letrozole; Methotrexate; P | 2020 |
Aromatase inhibitor letrozole: a novel treatment for ectopic pregnancy.
Topics: Abortifacient Agents, Nonsteroidal; Adolescent; Adult; Anti-Mullerian Hormone; Aromatase Inhibitors; | 2020 |
Predictors and outcomes in breast cancer patients who did or did not pursue fertility preservation.
Topics: Breast Neoplasms; Female; Fertility Preservation; Humans; Letrozole; Neoplasm Recurrence, Local; Ovu | 2021 |
Cholesterol-cyclodextrin complex as a replacement for egg yolk in bull semen extender: sperm characteristics post-thawing and in vivo fertility.
Topics: Animals; Cattle; Cholestyramine Resin; Cryopreservation; Cyclodextrins; Egg Yolk; Estrus Synchroniza | 2021 |
Comparison of in vitro fertilization cycles stimulated with 20 mg letrozole daily versus high-dose gonadotropins in Rotterdam Consensus ultra-poor responders: A proof of concept.
Topics: Canada; Consensus; Female; Fertilization in Vitro; Gonadotropins; Humans; Letrozole; Ovulation Induc | 2022 |
Letrozole-induced frozen embryo transfer cycles are associated with a lower risk of hypertensive disorders of pregnancy among women with polycystic ovary syndrome.
Topics: Adult; Cesarean Section; Cryopreservation; Embryo Transfer; Female; Humans; Hypertension, Pregnancy- | 2021 |
Comparison of frozen-thawed embryo transfer protocols in patients with previous cycle cancellation due to uterine peristalsis: a pilot study
Topics: Cryopreservation; Embryo Transfer; Female; Humans; Letrozole; Peristalsis; Pilot Projects; Pregnancy | 2021 |
A Novel Stimulation Protocol for Poor-Responder Patients: Combining the Stop GnRH-ag Protocol with Letrozole Priming and Multiple-Dose GnRH-ant: A Proof of Concept.
Topics: Adult; Animals; Ants; Aromatase Inhibitors; Chorionic Gonadotropin; Female; Fertilization in Vitro; | 2021 |
Does the additional use of clomiphene citrate or letrozole for in vitro fertilization deserve more attention?
Topics: Administration, Oral; Adult; Clomiphene; Dose-Response Relationship, Drug; Embryo Transfer; Feasibil | 2021 |
Comparison of Pregnancy and Neonatal Outcomes of Single Frozen Blastocyst Transfer Between Letrozole-Induction and HRT Cycles in Patients With Abnormal Ovulation.
Topics: Adult; Aromatase Inhibitors; Embryo Transfer; Embryo, Mammalian; Female; Fertilization in Vitro; Fol | 2021 |
Can methods of artificial intelligence aid in optimizing patient selection in patients undergoing intrauterine inseminations?
Topics: Adult; Artificial Intelligence; Clomiphene; Decision Making, Computer-Assisted; Female; Fertility Ag | 2021 |
Application of Pulsed Rhythmic Drug Administration to Ovulation Induction Therapy in PCOS Patients with Clomiphene-Resistance: a Retrospective Research.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Administration Routes; Drug Resistance; Female; Fertil | 2021 |
Comparison of the efficacy of letrozole stair-step protocol with clomiphene citrate stair-step protocol in the management of clomiphene citrate-resistant polycystic ovary syndrome patients.
Topics: Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Ovulation Indu | 2021 |
Letrozole as an adjunct treatment in antagonist cycles that previously failed in poor responders.
Topics: Female; Fertilization in Vitro; Follicle Stimulating Hormone; Gonadotropin-Releasing Hormone; Gonado | 2022 |
Letrozole as first-line drug for ovulation induction in treatment-naïve infertile polycystic ovarian syndrome women.
Topics: Cohort Studies; Female; Fertility Agents, Female; Humans; Infertility, Female; Letrozole; Ovulation; | 2021 |
Melasma treatment: A novel approach using a topical agent that contains an anti-estrogen and a vascular endothelial growth factor inhibitor.
Topics: Administration, Topical; Anastrozole; Androstadienes; Aromatase Inhibitors; Estrogens; Female; Genet | 2017 |
Pregnancy and neonatal outcomes following letrozole use in frozen-thawed single embryo transfer cycles.
Topics: Abortion, Spontaneous; Aromatase Inhibitors; Blastocyst; Cohort Studies; Cryopreservation; Female; F | 2017 |
A successful live birth with in vitro fertilization and thawed embryo transfer after conservative treatment of recurrent endometrial cancer.
Topics: Adult; Antineoplastic Agents, Hormonal; Conservative Treatment; Cryopreservation; Embryo Transfer; E | 2018 |
Does daily co-administration of letrozole and gonadotropins during ovarian stimulation improve IVF outcome?
Topics: Adult; Case-Control Studies; Drug Administration Schedule; Drug Therapy, Combination; Female; Fertil | 2017 |
When clomiphene is no longer available….
Topics: Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Female; Humans; Letrozole; Ovulation Ind | 2017 |
Ovulation induction and controlled ovarian stimulation using letrozole gonadotropin combination: A single center retrospective cohort study.
Topics: Adult; Drug Therapy, Combination; Endometriosis; Female; Fertility Agents, Female; Follicle Stimulat | 2017 |
Aromatase inhibitor use during ovarian stimulation suppresses growth of uterine endometrial cancer in xenograft mouse model.
Topics: Animals; Antineoplastic Agents; Aromatase Inhibitors; Endometrial Neoplasms; Estradiol; Female; Fert | 2018 |
Influence of the conclusion of a recent large cooperative study in changing standard protocol of inducing menses in anovulatory women with oligomenorrhea prior to initiating ovulation induction with anti-estrogens and outcome.
Topics: Adult; Anovulation; Clomiphene; Endometrium; Estrogen Antagonists; Estrogens; Female; Fertility Agen | 2017 |
Ovarian stimulation in infertile women treated with the use of intrauterine insemination: a cohort study from China.
Topics: Adult; China; Cohort Studies; Female; Humans; Infertility, Female; Insemination, Artificial; Letrozo | 2018 |
Male rats with same-sex preference show higher immobility in the forced swim test, but similar effects of fluoxetine and desipramine than males that prefer females.
Topics: Animals; Desipramine; Female; Fluoxetine; Immobility Response, Tonic; Letrozole; Male; Motor Activit | 2018 |
Comparison of the pregnancy outcomes and the incidence of fetal congenital abnormalities in infertile women treated with letrozole and clomiphene citrate.
Topics: Abnormalities, Drug-Induced; Adult; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Fema | 2018 |
A Retrospective Study of Letrozole Treatment Prior to Human Chorionic Gonadotropin in Women with Polycystic Ovary Syndrome Undergoing In Vitro Fertilization at Risk of Ovarian Hyperstimulation Syndrome.
Topics: Adult; China; Chorionic Gonadotropin; Embryo Transfer; Female; Fertilization in Vitro; Humans; Infer | 2018 |
Mild ovarian stimulation with letrozole plus fixed dose human menopausal gonadotropin prior to IVF/ICSI for infertile non-obese women with polycystic ovarian syndrome being pre-treated with metformin: a pilot study.
Topics: Adult; Female; Gonadotropins; Humans; Infertility, Female; Letrozole; Metformin; Nitriles; Oocyte Re | 2018 |
Misclassification in Assessment of First Trimester In-utero Exposure to Drugs Used Proximally to Conception: the Example of Letrozole Utilization for Infertility Treatment.
Topics: Adolescent; Adult; Algorithms; Aromatase Inhibitors; Child; Female; Fertilization; Fertilization in | 2019 |
Luteal support with vaginal dydrogesterone increases pregnancy rate in patients with clomifene resistant polycystic ovary syndrome receiving letrozole for ovulation induction.
Topics: Administration, Intravaginal; Adult; Clomiphene; Dydrogesterone; Female; Fertility Agents, Female; H | 2019 |
Management of recurrent implantation failure by gonadotropin-releasing hormone agonist and aromatase inhibitor suppression, in women without evidence of endometriosis.
Topics: Adult; Aromatase Inhibitors; Embryo Implantation; Embryo Transfer; Female; Fertility Agents, Female; | 2019 |
Ovulation induction and intrauterine insemination in infertile women with polycystic ovary syndrome: A comparison of drugs.
Topics: Adult; Birth Rate; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Female; Insemi | 2018 |
Letrozole for patients with polycystic ovary syndrome: A retrospective study.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Female; Humans; Infertility, Fema | 2018 |
Comparision of Letrozole with Timed Intercourse Versus Clomiphene Citrate with Intrauterine Insemination in Patients with Unexplained Infertility.
Topics: Adult; Clomiphene; Coitus; Endometrium; Female; Fertility Agents, Female; Humans; Infertility, Femal | 2016 |
Translation and implementation of the Australian-led PCOS guideline: clinical summary and translation resources from the International Evidence-based Guideline for the Assessment and Management of Polycystic Ovary Syndrome.
Topics: Adolescent; Adult; Clomiphene; Disease Management; Evidence-Based Medicine; Female; Humans; Infertil | 2018 |
Establishment of partner preference in male rats: Effect of prenatal letrozole and sexual experience.
Topics: Animals; Aromatase Inhibitors; Choice Behavior; Copulation; Female; Letrozole; Male; Motivation; Pre | 2019 |
A pilot study of gonadotropin-releasing hormone agonist combined with aromatase inhibitor as fertility-sparing treatment in obese patients with endometrial cancer.
Topics: Administration, Oral; Adult; Aromatase Inhibitors; Birth Rate; Endometrial Neoplasms; Female; Fertil | 2019 |
Ovulation induction: comparing success rates between anovulatory and ovulatory cycles using different treatment protocols.
Topics: Adult; Anovulation; Aromatase Inhibitors; Clomiphene; Female; Follicle Stimulating Hormone; Humans; | 2019 |
Letrozole use during frozen embryo transfer cycles in women with polycystic ovary syndrome.
Topics: Adult; Blastocyst; Cryopreservation; Embryo Transfer; Female; Fertilization in Vitro; Freezing; Horm | 2019 |
Effect of GnRH agonist and letrozole treatment in women with recurrent implantation failure.
Topics: Adult; Aromatase Inhibitors; Drug Therapy, Combination; Embryo Implantation; Embryo Transfer; Female | 2019 |
Letrozole stimulation in endometrial preparation for cryopreserved-thawed embryo transfer in women with polycystic ovarian syndrome: a pilot study.
Topics: Adult; Aromatase Inhibitors; Cryopreservation; Embryo Transfer; Endometrium; Female; Fertilization i | 2014 |
Predictive factors for pregnancy during the first four intrauterine insemination cycles using gonadotropin.
Topics: Adult; Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility, Female; Ins | 2013 |
Regulation of baboon fetal ovarian development by placental estrogen: onset of puberty is delayed in offspring deprived of estrogen in utero.
Topics: Animals; Estradiol; Estrogens; Female; Fetal Development; Fetus; Letrozole; Models, Animal; Nitriles | 2013 |
A pilot study on the combined use of letrozole, mifepristone and misoprostol in termination of first trimester pregnancy up to 9 weeks' gestation.
Topics: Abortifacient Agents, Nonsteroidal; Abortifacient Agents, Steroidal; Abortion, Induced; Adult; Aroma | 2013 |
The comparision of effect of microdose GnRH-a flare-up, GnRH antagonist/aromatase inhibitor letrozole and GnRH antagonist/clomiphene citrate protocols on IVF outcomes in poor responder patients.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Estradiol; Female; Gonadotropin-Releasing Hormone; Humans; | 2014 |
Comparison of estradiol and progesterone priming/antagonist/letrozole and microdose flare-up protocols for poor responders undergoing intracytoplasmic sperm injection.
Topics: Adult; Estradiol; Female; Gonadotropin-Releasing Hormone; Humans; Letrozole; Nitriles; Ovulation Ind | 2014 |
Placental estrogen suppresses cyclin D1 expression in the nonhuman primate fetal adrenal cortex.
Topics: Adrenal Cortex; Animals; Aromatase Inhibitors; Carrier Proteins; Cyclin D1; Cyclin-Dependent Kinases | 2014 |
Congenital malformations among babies born following letrozole or clomiphene for infertility treatment.
Topics: Birth Weight; Child; Child, Preschool; Clomiphene; Congenital Abnormalities; Female; Fertility Agent | 2014 |
Prenatal hyperandrogenic environment induced autistic-like behavior in rat offspring.
Topics: Androgens; Animals; Arginine Vasopressin; Child Development Disorders, Pervasive; Disease Models, An | 2015 |
Prenatal letrozole produces a subpopulation of male rats with same-sex preference and arousal as well as female sexual behavior.
Topics: Animals; Aromatase Inhibitors; Dose-Response Relationship, Drug; Estradiol; Female; Follicle Stimula | 2015 |
First reported case of sextuplets conceived via letrozole for ovulation induction.
Topics: Adult; Aromatase Inhibitors; Female; Humans; Infertility, Female; Letrozole; Multiple Birth Offsprin | 2015 |
Minimal stimulation using gonadotropin combined with clomiphene citrate or letrozole for intrauterine insemination.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Drug Administration Schedule; Drug Combinations; Female; Fe | 2015 |
In defense of publishing baseline data from clinical trials.
Topics: Clomiphene; Female; Fertility Agents, Female; Gonadotropins; Humans; Infertility, Female; Letrozole; | 2015 |
Fertility Preservation Success Subsequent to Concurrent Aromatase Inhibitor Treatment and Ovarian Stimulation in Women With Breast Cancer.
Topics: Adult; Aromatase Inhibitors; Breast Neoplasms; Cryopreservation; Embryo, Mammalian; Female; Fertilit | 2015 |
Fertility Preservation Success Subsequent to Concurrent Aromatase Inhibitor Treatment and Ovarian Stimulation in Women With Breast Cancer.
Topics: Adult; Aromatase Inhibitors; Breast Neoplasms; Cryopreservation; Embryo, Mammalian; Female; Fertilit | 2015 |
Fertility Preservation Success Subsequent to Concurrent Aromatase Inhibitor Treatment and Ovarian Stimulation in Women With Breast Cancer.
Topics: Adult; Aromatase Inhibitors; Breast Neoplasms; Cryopreservation; Embryo, Mammalian; Female; Fertilit | 2015 |
Fertility Preservation Success Subsequent to Concurrent Aromatase Inhibitor Treatment and Ovarian Stimulation in Women With Breast Cancer.
Topics: Adult; Aromatase Inhibitors; Breast Neoplasms; Cryopreservation; Embryo, Mammalian; Female; Fertilit | 2015 |
A Novel Letrozole Model Recapitulates Both the Reproductive and Metabolic Phenotypes of Polycystic Ovary Syndrome in Female Mice.
Topics: Animals; Corpus Luteum; Diestrus; Enzyme Inhibitors; Estrous Cycle; Female; Hyperandrogenism; Hypoth | 2015 |
Estrogen or anti-estrogen for Bologna poor responders?
Topics: Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Embryo Transfer; Estradiol; Estrogens; Female; | 2015 |
Controlled ovarian hyperstimulation with sequential letrozole co-treatment in normo/high responders.
Topics: Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Female; Gonadotropin-Releasing Hormone; Humans; | 2016 |
Luteal-phase ovarian stimulation is a feasible method for poor ovarian responders undergoing in vitro fertilization/intracytoplasmic sperm injection-embryo transfer treatment compared to a GnRH antagonist protocol: A retrospective study.
Topics: Adult; Clomiphene; Embryo Transfer; Feasibility Studies; Female; Fertility Agents, Female; Gonadotro | 2016 |
Luteal-phase ovarian stimulation is a feasible method for poor ovarian responders undergoing in vitro fertilization/intracytoplasmic sperm injection-embryo transfer treatment compared to a GnRH antagonist protocol: A retrospective study.
Topics: Adult; Clomiphene; Embryo Transfer; Feasibility Studies; Female; Fertility Agents, Female; Gonadotro | 2016 |
Luteal-phase ovarian stimulation is a feasible method for poor ovarian responders undergoing in vitro fertilization/intracytoplasmic sperm injection-embryo transfer treatment compared to a GnRH antagonist protocol: A retrospective study.
Topics: Adult; Clomiphene; Embryo Transfer; Feasibility Studies; Female; Fertility Agents, Female; Gonadotro | 2016 |
Luteal-phase ovarian stimulation is a feasible method for poor ovarian responders undergoing in vitro fertilization/intracytoplasmic sperm injection-embryo transfer treatment compared to a GnRH antagonist protocol: A retrospective study.
Topics: Adult; Clomiphene; Embryo Transfer; Feasibility Studies; Female; Fertility Agents, Female; Gonadotro | 2016 |
Twin delivery after IVF-ET with variable dose letrozole-FSH protocol of lower estradiol in a patient previously treated for breast cancer: a case report.
Topics: Adenocarcinoma, Mucinous; Adult; Aromatase Inhibitors; Breast Neoplasms; Embryo Transfer; Estradiol; | 2016 |
Estrogen deprivation in primate pregnancy leads to insulin resistance in offspring.
Topics: Animals; Blood Glucose; Estradiol; Female; Fetal Development; Insulin; Insulin Resistance; Insulin S | 2016 |
A comparison among different methods of letrozole combined with gonadotropin in an antagonist protocol and high-dose gonadotropin ovarian stimulation antagonist protocol in poor ovarian responders undergoing in vitro fertilization.
Topics: Adult; Antineoplastic Agents; Birth Rate; Female; Fertilization in Vitro; Gonadotropin-Releasing Hor | 2016 |
The impact of ovarian stimulation on the outcome of intrauterine insemination treatment: an analysis of 8893 cycles.
Topics: China; Clomiphene; Female; Fertilization in Vitro; Humans; Insemination, Artificial; Letrozole; Live | 2016 |
Insulin resistance elicited in postpubertal primate offspring deprived of estrogen in utero.
Topics: Animals; Aromatase Inhibitors; Estradiol; Female; Glucose Tolerance Test; Insulin Resistance; Letroz | 2016 |
Altered expression of miRNAs in the uterus from a letrozole-induced rat PCOS model.
Topics: Animals; Disease Models, Animal; Estrus; Female; Gene Expression; Humans; Letrozole; MicroRNAs; Nitr | 2017 |
No increased risk of major congenital anomalies or adverse pregnancy or neonatal outcomes following letrozole use in assisted reproductive technology.
Topics: Abnormalities, Drug-Induced; Abortion, Spontaneous; Adult; Aromatase Inhibitors; Female; Fertilizati | 2017 |
Clomiphene Citrate versus Letrozole for Ovarian Stimulation in Therapeutic Donor Sperm Insemination.
Topics: Adult; Aromatase Inhibitors; Canada; Clomiphene; Female; Fertility Agents, Female; Humans; Infertili | 2017 |
Prenatal administration of letrozole reduces SDN and SCN volume and cell number independent of partner preference in the male rat.
Topics: Analysis of Variance; Animals; Antineoplastic Agents; Cell Count; Female; Letrozole; Male; Mating Pr | 2017 |
GnRH antagonist and letrozole co-treatment in diminished ovarian reserve patients: a proof-of-concept study.
Topics: Adult; Aromatase Inhibitors; Drug Therapy, Combination; Estradiol; Female; Fertility Agents, Female; | 2017 |
A retrospective analysis of ovarian stimulation with letrozole in women undergoing artificial insemination by donor.
Topics: Aromatase Inhibitors; Estradiol; Female; Gonadotropins; Humans; Insemination, Artificial, Heterologo | 2017 |
Mild versus conventional antagonist ovarian stimulation protocols in expected normal responders undergoing IVF/ICSI: a case-control study.
Topics: Adult; Case-Control Studies; Clomiphene; Female; Fertility Agents, Female; Fertilization in Vitro; H | 2017 |
Letrozole combined with low dose highly purified HMG for ovulation induction in clomiphene citrate-resistant infertile Chinese women with polycystic ovary syndrome: a prospective study.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Female; Fertility Agents, Female; Humans; Letrozole; Menotr | 2017 |
Effects of maternal exposure to an aromatase inhibitor on sexual behaviour and neurochemical and endocrine aspects of adult male rat.
Topics: Animals; Aromatase Inhibitors; Biogenic Monoamines; Body Weight; Brain Chemistry; Endocrine System; | 2008 |
Antagonist/letrozole protocol in poor ovarian responders for intracytoplasmic sperm injection: a comparative study with the microdose flare-up protocol.
Topics: Adult; Aromatase Inhibitors; Case-Control Studies; Dose-Response Relationship, Drug; Estradiol; Estr | 2009 |
Aromatase inhibition during adolescence reduces adult sexual and paternal behavior in the biparental dwarf hamster Phodopus campbelli.
Topics: Age Factors; Algorithms; Animals; Aromatase; Aromatase Inhibitors; Cricetinae; Estradiol; Female; Le | 2008 |
[Clinical analysis of assistant treatment proposals for infertile women with polycystic ovary syndrome].
Topics: Adult; Clomiphene; Embryo Transfer; Female; Fertilization in Vitro; Humans; Infertility, Female; Let | 2008 |
Developmental regulation of the expression of the transferrin receptor and Ki67 in oocytes of the baboon fetal ovary by estrogen.
Topics: Animals; Aromatase Inhibitors; Estradiol; Estrogens; Female; Gene Expression Regulation, Development | 2009 |
Estrogen promotes germ cell and seminiferous tubule development in the baboon fetal testis.
Topics: Analysis of Variance; Animals; Aromatase Inhibitors; Basement Membrane; Caspase 3; Cell Cycle; Cell | 2009 |
Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction.
Topics: Administration, Intravaginal; Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, | 2010 |
Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction.
Topics: Administration, Intravaginal; Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, | 2010 |
Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction.
Topics: Administration, Intravaginal; Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, | 2010 |
Luteal support with intravaginal progesterone increases clinical pregnancy rates in women with polycystic ovary syndrome using letrozole for ovulation induction.
Topics: Administration, Intravaginal; Adult; Aromatase Inhibitors; Clomiphene; Female; Humans; Infertility, | 2010 |
Uterine and fetal blood flow indexes and fetal growth assessment after chronic estrogen suppression in the second half of baboon pregnancy.
Topics: Animals; Aromatase Inhibitors; Blood Pressure; Body Weight; Estradiol; Estrogens; Female; Fetal Deve | 2010 |
Control of mammary stem cell function by steroid hormone signalling.
Topics: Animals; Aromatase; Aromatase Inhibitors; CD24 Antigen; Cell Count; ErbB Receptors; Estrogens; Femal | 2010 |
The pregnancy outcome of retrieved excess eggs collected during selective follicular reduction from patients with three or more preovulatory follicles undergoing controlled ovarian stimulation and IUI.
Topics: Adult; Embryo Transfer; Female; Humans; Letrozole; Menotropins; Nitriles; Oocyte Retrieval; Ovulatio | 2010 |
Expression of P-450 aromatase, estrogen receptor α and β, and α-inhibin in the fetal baboon testis after estrogen suppression during the second half of gestation.
Topics: Animals; Aromatase; Aromatase Inhibitors; Estradiol; Estrogen Receptor alpha; Estrogen Receptor beta | 2011 |
Use of letrozole challenge test to adjust gonadotropin dose in non-down-regulated cycles.
Topics: Aromatase Inhibitors; Biomarkers; Drug Administration Schedule; Estradiol; Female; Fertility Agents, | 2011 |
Letrozole and gonadotropins versus luteal estradiol and gonadotropin-releasing hormone antagonist protocol in women with a prior low response to ovarian stimulation.
Topics: Adult; Aromatase Inhibitors; Chi-Square Distribution; Connecticut; Drug Administration Schedule; Est | 2011 |
Hormonal, follicular and endometrial dynamics in letrozole-treated versus natural cycles in patients undergoing controlled ovarian stimulation.
Topics: Adult; Aromatase Inhibitors; Endometrium; Female; Fertilization in Vitro; Hormones; Humans; Kinetics | 2011 |
Letrozole or clomiphene citrate as first line for anovulatory infertility: a debate.
Topics: Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Female; Fertility Agents, Female; Hu | 2011 |
Letrozole or clomiphene citrate as first line for anovulatory infertility: a debate.
Topics: Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Female; Fertility Agents, Female; Hu | 2011 |
Letrozole or clomiphene citrate as first line for anovulatory infertility: a debate.
Topics: Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Female; Fertility Agents, Female; Hu | 2011 |
Letrozole or clomiphene citrate as first line for anovulatory infertility: a debate.
Topics: Anovulation; Aromatase Inhibitors; Clomiphene; Drug Resistance; Female; Fertility Agents, Female; Hu | 2011 |
Body mass index-associated differences in response to ovulation induction with letrozole.
Topics: Adult; Alabama; Aromatase Inhibitors; Body Mass Index; Chi-Square Distribution; Female; Fertility Ag | 2011 |
Does the addition of clomiphene citrate or letrazole to gonadotropin treatment enhance the oocyte yield in poor responders undergoing IVF?
Topics: Adult; Birth Rate; Clomiphene; Embryo Transfer; Estradiol; Estrogen Antagonists; Female; Fertilizati | 2011 |
Use of the aromatase inhibitor letrozole for ovulation induction in women with polycystic ovarian syndrome.
Topics: Anovulation; Aromatase Inhibitors; Clomiphene; Congenital Abnormalities; Female; Fertility Agents, F | 2011 |
Controlled ovarian hyperstimulation in women with polycystic ovarian syndrome with or without intrauterine insemination.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Fertility Agents, Female; Gonadotro | 2012 |
Endometrial receptivity defects during IVF cycles with and without letrozole.
Topics: Adult; Aromatase Inhibitors; Birth Rate; Embryo Implantation; Endometrium; Female; Fertilization in | 2012 |
What is the optimal follicular size before triggering ovulation in intrauterine insemination cycles with clomiphene citrate or letrozole? An analysis of 988 cycles.
Topics: Adult; Chi-Square Distribution; Chorionic Gonadotropin; Clomiphene; Drug Administration Schedule; Dr | 2012 |
Zoledronic acid inhibits aromatase activity and phosphorylation: potential mechanism for additive zoledronic acid and letrozole drug interaction.
Topics: Aromatase; Aromatase Inhibitors; Cell Survival; Diphosphonates; Drug Synergism; Estradiol; Female; H | 2012 |
Does higher starting dose of FSH stimulation with letrozole improve fertility preservation outcomes in women with breast cancer?
Topics: Adult; Aromatase Inhibitors; Breast Neoplasms; Dose-Response Relationship, Drug; Drug Therapy, Combi | 2012 |
Re: Effect of letrozole on uterine artery Doppler flow indices prior to first-trimester termination of pregnancy: a randomized controlled trial. V. C. Y. Lee, T. W. Y. Yeung, O. S. Tang, E. H. Y. Ng, W. S. B. Yeung and P. C. Ho. Ultrasound Obstet Gynecol
Topics: Abortifacient Agents, Nonsteroidal; Abortion, Induced; Female; Humans; Letrozole; Nitriles; Pregnanc | 2012 |
Frozen embryo transfer: the present practice and beyond.
Topics: Adult; Cryopreservation; Embryo Implantation; Embryo Transfer; Endometrium; Enzyme Inhibitors; Femal | 2013 |
Developmental regulation of baboon fetal ovarian maturation by estrogen.
Topics: Androstenedione; Animals; Aromatase Inhibitors; Enzyme Inhibitors; Epithelium; Estradiol; Estrogen R | 2002 |
Fetal lung maturation in estrogen-deprived baboons.
Topics: 11-beta-Hydroxysteroid Dehydrogenase Type 2; Animals; Aromatase Inhibitors; Embryonic and Fetal Deve | 2003 |
Estrogen and antiestrogen effects on neonatal ovine uterine development.
Topics: Animals; Animals, Newborn; Aromatase Inhibitors; Benzopyrans; Cell Differentiation; Endometrium; Enz | 2003 |
Aromatase inhibition reduces gonadotrophin dose required for controlled ovarian stimulation in women with unexplained infertility.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Enzyme Inhibitors; Estradiol; Female; Fertility Agents, Fem | 2003 |
Use of letrozole as a chemopreventive agent in aromatase overexpressing transgenic mice.
Topics: Animals; Anticarcinogenic Agents; Aromatase; Aromatase Inhibitors; Birth Weight; Female; Hyperplasia | 2003 |
Effects of letrozole on superovulation with gonadotropins in women undergoing intrauterine insemination.
Topics: Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Enzyme Inhibitors; Female; Hospitals, Teaching; | 2003 |
Comparison of two aromatase inhibitors in women with clomiphene-resistant polycystic ovary syndrome.
Topics: Adult; Anastrozole; Aromatase Inhibitors; Clomiphene; Estrogen Antagonists; Female; Humans; Letrozol | 2004 |
Estrogen suppression induces papillary gingival overgrowth in pregnant baboons.
Topics: Animals; Aromatase Inhibitors; Biopsy; Cell Differentiation; Cell Division; Cesarean Section; Enzyme | 2004 |
Regulation of placental vascular endothelial growth/permeability factor expression and angiogenesis by estrogen during early baboon pregnancy.
Topics: Animals; Estradiol; Female; Fetal Weight; Gene Expression Regulation, Developmental; Letrozole; Neov | 2004 |
Pregnancy outcome after the use of an aromatase inhibitor for ovarian stimulation.
Topics: Abortion, Spontaneous; Aromatase Inhibitors; Cohort Studies; Female; Humans; Letrozole; Nitriles; Ov | 2005 |
The aromatase inhibitor letrozole increases the concentration of intraovarian androgens and improves in vitro fertilization outcome in low responder patients: a pilot study.
Topics: Adult; Androgens; Aromatase Inhibitors; Chi-Square Distribution; Female; Fertilization in Vitro; Hum | 2005 |
Oral ovulation induction agents combined with low-dose gonadotropin injections and intrauterine insemination: cost- and clinical effectiveness.
Topics: Administration, Oral; Adult; Analysis of Variance; Clomiphene; Cost-Benefit Analysis; Female; Fertil | 2005 |
Letrozole induction of ovulation in women with clomiphene citrate-resistant polycystic ovary syndrome may not depend on the period of infertility, the body mass index, or the luteinizing hormone/follicle-stimulating hormone ratio.
Topics: Adult; Aromatase Inhibitors; Body Mass Index; Clomiphene; Drug Resistance; Female; Fertility Agents, | 2006 |
Congenital malformations among 911 newborns conceived after infertility treatment with letrozole or clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Canada; Clomiphene; Comorbidity; Congenital Abnormalities; Female; Fert | 2006 |
Effects of novel retinoic acid metabolism blocking agent (VN/14-1) on letrozole-insensitive breast cancer cells.
Topics: Animals; Apoptosis Regulatory Proteins; Aromatase; Aromatase Inhibitors; Blotting, Western; Breast N | 2006 |
Aromatase inhibitors in ovarian stimulation.
Topics: Aromatase Inhibitors; Female; Humans; Infant, Newborn; Letrozole; Nitriles; Ovulation Induction; Pre | 2006 |
Placental expression and molecular characterization of aromatase cytochrome P450 in the spotted hyena (Crocuta crocuta).
Topics: Animals; Aromatase; Aromatase Inhibitors; Clitoris; Female; Humans; Hyaenidae; Letrozole; Nitriles; | 2007 |
Progesterone, but not luteal estrogen, is required for the establishment of pregnancy in the new world monkey Cebus apella.
Topics: Animals; Aromatase Inhibitors; Cebus; Embryo Implantation; Estradiol; Estrogen Antagonists; Female; | 2007 |
Letrozole for ovulation induction and fertility preservation by embryo cryopreservation in young women with endometrial carcinoma.
Topics: Antineoplastic Agents; Cryopreservation; Endometrial Neoplasms; Female; Fertility; Fertilization in | 2007 |
Limiting access to letrozole--is it justified?
Topics: Aromatase Inhibitors; Female; Heart Defects, Congenital; Humans; Infant, Newborn; Infertility, Femal | 2007 |
A novel tocolytic agent: effects of letrozole on gestational length and parturition time.
Topics: Administration, Oral; Animals; Aromatase Inhibitors; Estradiol; Female; Gestational Age; Injections; | 2007 |
Letrozole versus clomiphene citrate: which is better for ovulation induction?
Topics: Adult; Aromatase Inhibitors; Clomiphene; Dose-Response Relationship, Drug; Female; Fertility Agents, | 2009 |
Fetal safety of letrozole and clomiphene citrate for ovulation induction.
Topics: Abnormalities, Drug-Induced; Adult; Aromatase Inhibitors; Birth Weight; Clomiphene; Female; Fertilit | 2007 |
Placental villous vascular endothelial growth factor expression and vascularization after estrogen suppression during the last two-thirds of baboon pregnancy.
Topics: Animals; Aromatase Inhibitors; Chorionic Villi; Estradiol; Estrogens; Female; Gene Expression Regula | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
A comparison of letrozole to gonadotropins for ovulation induction, in subjects who failed to conceive with clomiphene citrate.
Topics: Adult; Aromatase Inhibitors; Clomiphene; Cohort Studies; Female; Follicle Stimulating Hormone; Human | 2007 |
Effect of letrozole at 2.5 mg or 5.0 mg/day on ovarian stimulation with gonadotropins in women undergoing intrauterine insemination.
Topics: Abortion, Spontaneous; Adult; Aromatase Inhibitors; Chorionic Gonadotropin; Cost-Benefit Analysis; D | 2008 |
Is the use of letrozole to induce ovulation teratogenic?
Topics: Abnormalities, Drug-Induced; Animals; Aromatase Inhibitors; Female; Fertility Agents, Female; Humans | 2008 |
Controlling for the EFFECTS related to the underlying pathology of infertility.
Topics: Aromatase Inhibitors; Brain; Clomiphene; Estrogen Antagonists; Estrogens; Female; Humans; Infertilit | 2008 |
Effects of the aromatase inhibitor letrozole on in utero development in rats.
Topics: Animals; Aromatase Inhibitors; Female; Fetal Resorption; Fetal Weight; Letrozole; Maternal Exposure; | 2008 |
Letrozole co-treatment in infertile women 40 years old and older receiving controlled ovarian stimulation and intrauterine insemination.
Topics: Adult; Aromatase Inhibitors; Case-Control Studies; Drug Therapy, Combination; Endometriosis; Female; | 2009 |
Structure-activity relationships and binding model of novel aromatase inhibitors.
Topics: Anti-Inflammatory Agents, Non-Steroidal; Aromatase Inhibitors; Fadrozole; Female; Humans; Letrozole; | 1993 |
Endocrine sex reversal of gonads by the aromatase inhibitor Letrozole (CGS 20267) in Emys orbicularis, a turtle with temperature-dependent sex determination.
Topics: Analysis of Variance; Animals; Enzyme Inhibitors; Female; Gonads; Letrozole; Nitriles; Pregnancy; Se | 1995 |
Effect of estrogen deprivation on the reproductive physiology of male and female primates.
Topics: Animals; Aromatase; Aromatase Inhibitors; Enzyme Inhibitors; Estrogen Antagonists; Estrogens; Fadroz | 1997 |
Macrophages, estrogen and the microenvironment of breast cancer.
Topics: Antineoplastic Agents; Aromatase; Breast; Breast Neoplasms; Carcinoma in Situ; Cell Division; Cell L | 1998 |
The role of estrogen in the maintenance of primate pregnancy.
Topics: Animals; Aromatase Inhibitors; Cesarean Section; Enzyme Inhibitors; Estradiol; Female; Letrozole; Lu | 2000 |
Developmental regulation of morphological differentiation of placental villous trophoblast in the baboon.
Topics: Androstenedione; Animals; Aromatase Inhibitors; Bromodeoxyuridine; Cell Differentiation; Enzyme Inhi | 2001 |
Developmental maturation of primate placental trophoblast: placental cytosolic and secretory phospholipase A2 expression after estrogen suppression of baboons.
Topics: Animals; Enzyme Inhibitors; Estrogens; Female; Gene Expression Regulation, Enzymologic; Letrozole; N | 2001 |