cetrorelix and Abortion--Spontaneous

To compare the new delayed start protocol against the conventional gonadotropin (Gn)-releasing hormone antagonist protocol in poor responders (PORs).. A total of 160 women with poor response to previous in vitro fertilization (IVF) cycle were randomized either to start Gn then Cetrotide 0.25 subcutaneously (sc) added when leading follicle (DF) reach >12 mm or Cetrotide 0.25 mg sc started first from day 2 to day 8 then Gn therapy was added and Cetrotide restarted when DF reach >12 mm.. There was a statistically significant difference between conventional and delayed start protocols regarding the needed dose of Gn for stimulation (4368 ± 643 and 3798 ± 515), level of estradiol (E2; 778 ± 371 and 1076 ± 453), and endometrial thickness at human chorionic gonadotropin triggering (8.6 ± 1.8 and 9.8 ± 1.9), the number of DF (3.4 ± 1.5 and 4.9 ± 2.1), the number of retrieved follicles (2.4 ± 2.1 and 4.3 ± 2.5), and successful embryo transfer (13 vs 16), respectively (P < .05). There was a highly statistically significant difference between the 2 study groups regarding the number of oocytes fertilized (1.2 ± 2.0 vs 3.3 ± 1.4), metaphase II oocytes (0.9 ± 1.0 vs 2.7 + 1.6), and grade I embryos (0.7 ± 0.9 vs 2.1 + 1.1; P < .001). The chemical pregnancy, clinical pregnancy, and abortion rate showed a statistically significant difference between the 2 study groups (P value .003 and .006, respectively).. Delayed start protocol significantly improved clinical pregnancy rate and IVF cycle parameters in PORs.

Topics: Abortion, Spontaneous; Adult; Drug Administration Schedule; Egypt; Embryo Transfer; Estradiol; Female; Fertility; Fertility Agents, Female; Fertilization in Vitro; Gonadotropin-Releasing Hormone; Hormone Antagonists; Humans; Infertility; Luteal Phase; Oocyte Retrieval; Ovulation; Ovulation Induction; Pregnancy; Pregnancy Rate; Saudi Arabia; Time Factors; Treatment Outcome

The goal of this study was to assess the association between endometrial thickness on the chorionic gonadotropin (hCG) day and in vitro fertilization and embryo transfer (IVF-ET) outcome in normal responders after GnRH antagonist administration.. A retrospective cohort study was performed in normal responders with GnRH antagonist administration from January 2011-December 2013. Patients were divided into four groups according to endometrial thickness, as follows: <7 mm (group 1), > = 7- < 8 mm (group 2), > = 8- < 14 mm (group 3), and > =14 mm (group 4).. A total of 2106 embryo transfer cycles were analyzed. The pregnancy rate (PR) was 44.87%.The clinical pregnancy rate, ongoing pregnancy rate and the implantation rate (17.28%, 13.79%, 10.17%, respectively) were significantly lower in group 1 compared to the other three groups (p < 0.05). The miscarriage rate was higher in patients with endometrial thickness less than 7 mm. The clinical pregnancy rate, ongoing pregnancy rate and implantation rate were highest in patients with endometrial thickness higher than 14 mm, but showed no difference in patients with those of endometrial thickness between 8-14 mm.. There is a correlation between endometrial thickness measured on hCG day and clinical outcome in normal responders with GnRH antagonist administration. The pregnancy rate was lower in patients with endometrial thickness less than 7 mm compared with patients with endometrial thickness more than 7 mm.

Topics: Abortion, Spontaneous; Adult; China; Chorionic Gonadotropin; Cohort Studies; Embryo Transfer; Endometrium; Female; Fertility Agents, Female; Fertilization in Vitro; Gonadotropin-Releasing Hormone; Humans; Infertility, Female; Organ Size; Pregnancy; Pregnancy Maintenance; Pregnancy Rate; Retrospective Studies; Sperm Injections, Intracytoplasmic; Ultrasonography

This study evaluated women with a high body mass index (BMI) (>40 kg/m(2)) and low BMI (<18 kg/m(2)) undergoing assisted reproduction treatment and determined whether the type of gonadotrophin-releasing hormone (GnRH) analogue used has an impact on cycle parameters and outcome. The study analysed 65 women with high BMI and 118 with low BMI. In the former group, polycystic ovarian syndrome was significantly more prevalent in the agonist long protocol (ALP) group (P=0.01) and gonadotrophin consumption was lower, peak oestradiol concentrations and total number of oocytes retrieved were higher in the ALP group compared with the antagonist (ANT) group. Implantation rate (IR), pregnancy rate (PR) per embryo transfer and early pregnancy loss rate (EPLR) were similar in both stimulation groups, with overall rates of 21.6%, 55.4% and 44.4%, respectively. In women with low BMI, peak oestradiol concentrations, total oocytes retrieved, mature oocytes and transferred embryos were higher in the ALP group compared with ANT group. IR, PR/embryo transfer and EPLR were similar in both groups, with overall rates of 24.3%, 52.5% and 16.1%, respectively. In all patients, no difference was found between ALP and ANT protocols concerning treatment outcome. Contrary to the reasonable EPLR observed in women with low BMI, the high rate found in women with high BMI is remarkable.

Topics: Abortion, Spontaneous; Adult; Body Mass Index; Embryo Implantation; Embryo Transfer; Female; Gonadotropin-Releasing Hormone; Humans; Leuprolide; Ovulation Induction; Polycystic Ovary Syndrome; Pregnancy; Pregnancy Rate; Retrospective Studies

to compare standard long GnRH agonist protocol (Triptorelin) and GnRH antagonist regimens (Cetrorelix) in polycystic ovary syndrome (PCOS) patients undergoing controlled ovarian stimulation (COS) for ICSI cycles.. Retrospective case-control study. 106 PCOS patients undergoing COS for ICSI with long GnRH agonist protocol (Triptorelin) were matched with age and BMI to 106 PCOS patients undergoing COS for ICSI with GnRH antagonist (Cetrorelix) during the same period. Ovarian stimulation with recombinant follicle stimulating hormone (rFSH) was used in the two groups. Oral contraceptive pill pretreatment was used in all patients undergoing ovarian stimulation using GnRH antagonists. ICSI was performed for male infertility in all cases. The main outcome measures evaluated were: cancellation of the cycles, number of aspirated follicles, oocyte maturity, fertilization rate, Embryo quality, pregnancy and implantation rates, clinical abortion rate, multiple pregnancy rate and the live birth rate rate. Kchi2 test and t Student test were used for differences between normo-ovulatory and PCOS patients and the limit of significance was set at p < 0.05.. There was no significant difference in term of cancellation rate (2.8% vs 1.8%; NS). Duration of gonadotrophin stimulation (9.7 +/- 0.7 vs. 11.2 +/- 1.9 days; p < 0.001) and gonadotrophin consumption (2209.0 +/- 548.3 vs. 1411.1 +/- 217.9 UI: p < 0.001) were significantly decreased with GnRH antagonist. The mean oestradiol level on the triggering day was significantly higher in the agonist group (3347.85 +/- 99 vs. 2354.45 +/- 839; p < 0.001 ).A fall in LH level of > or = 50% from stimulation day 8 (S8) to S1 was observed in GnRH antagonist group. Risk of ovarian hyperstimulation syndrome (OHSS) was significantly decreased with GnRH antagonist (1.8% vs 10.7%; p = 0.01). The mean number of retrival oocytes (15.9 +/- 5.9 vs. 17.3 +/- 8.3; ns) and the mean number of mature oocytes (11.43 +/- 4.2 vs. 11.91 6.4; ns) were similar in the two groups, fertilization rate (73.3% vs 75.8%; NS), mean number of grade 1 and 2 embryos (6.3 +/- 2.7 vs. 6.9 +/- 3.9; NS), mean number of transferred embryos (1.9 +/- 0.7 vs. 1.8 +/- 0.7; NS), implantation rate (13.3% vs. 18.45%; ns) and clinical pregnancy rate per transfer (28.6% vs 31.1% ; NS) did not differ statistically in the two groups. Twin and triplet pregnancies rates were also similar in the two groups (7.1% vs. 9.3%; NS) and (3.5% vs. 3.1%; NS) respectively. Live birth rate (12.2% vs. 20.7%; p < 0.001) was significantly lower in GnRH antagonist group and miscarrage rate was significantly higher in this same group (42.8% vs. 18.7%; p < 0.001).. GnRH antagonist protocol is a short and simple protocol with a significant reduction in incidence of OHSS and amount of gonadotrophins. However, GnRH antagonist protocol provides a lower live birth rate and an increased risk of early pregnancy loss compared to the GnRH agonist long protocol. Further studies are necessary for more solid conclusions.

Topics: Abortion, Spontaneous; Adult; Case-Control Studies; Female; Gonadotropin-Releasing Hormone; Hormone Antagonists; Humans; Luteolytic Agents; Male; Ovulation Induction; Pregnancy; Retrospective Studies; Sperm Injections, Intracytoplasmic; Triptorelin Pamoate

This retrospective study was performed to examine the implantation and pregnancy rates of frozen-thawed pronuclear stage oocytes obtained with the use of a GnRH antagonist, Cetrorelix (Cetrotide((R)) ASTA-Medica, Frankfurt/M, Germany) used in a multidose protocol with hMG, and to compare these results with those obtained after a conventional long GnRH analogue protocol (Decapeptyl-Depot, Ferring, Kiel, Germany). The study population consisted of 31 infertile couples with frozen-thawed pronuclear stage oocytes after ICSI treatment using the GnRH antagonist Cetrorelix (Cetrorelix((R))) and 31 infertile couples with frozen-thawed pronuclear stage oocytes after ICSI treatment using the long GnRH analogue protocol. Patients underwent ICSI after down regulation with a GnRH agonist (Decapeptyl) and stimulation with hMG, or a GnRH antagonist (Cetrorelix) and hMG. The supernumerary pronuclear stage oocytes were cryopreserved and transferred in a later mildly stimulated cycle. The implantation and pregnancy rates for frozen-thawed pronuclear stage oocytes derived from the GnRH antagonist compared with the GnRH agonist were 3.26% versus 3.73% (P=1.0000) and 8.33% versus 10.25% (P=1.0000), respectively. To our knowledge we report here the first pregnancies obtained by the transfer of cryopreserved pronuclear stage embryos generated from ICSI using a GnRH antagonist in the collecting cycle. The use of Cetrorelix in a multiple dose protocol in combination with hMG does not demonstrate a negative effect on viability, implantation potential or pregnancy outcome as compared to 2PN conceptuses obtained from a long GnRH agonist-hMG protocol.

Topics: Abortion, Spontaneous; Cryopreservation; Embryo Implantation; Embryo Transfer; Female; Gonadotropin-Releasing Hormone; Hormone Antagonists; Humans; Infertility; Menotropins; Oocytes; Pregnancy; Pregnancy Outcome; Retrospective Studies; Sperm Injections, Intracytoplasmic; Triptorelin Pamoate

The luteal phase hormonal profile and the clinical outcome of 69 patients undergoing in-vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) after ovarian stimulation with human menopausal gonadotrophin (HMG) and the gonadotrophin-releasing hormone (GnRH) antagonist Cetrorelix were analysed. Twenty-four patients received Cetrorelix 0.5 mg (group I) while in 45 patients Cetrorelix 0.25 mg was administered (group II). Human chorionic gonadotrophin (HCG) was used as luteal support. Nine clinical pregnancies were obtained in group I (37.5%) and 12 in group II (26. 6%). These results were not significantly different. Serum progesterone and oestradiol concentrations did not differ between the two groups either in pregnant or non-pregnant patients. An expected decrease of the same hormones was observed 8 days after the pre-ovulatory HCG injection in non-pregnant women. With regard to serum luteinizing hormone concentrations, a decrease was observed 2 days after the pre-ovulatory HCG injection and was maintained at almost undetectable levels throughout the entire luteal phase in both conception and non-conception cycles of group I and group II. This study demonstrates that different doses of GnRH antagonist do not have any impact on the luteal phase of IVF/ICSI cycles when hormonal support is given.

Topics: Abortion, Spontaneous; Adult; Embryo Transfer; Female; Fertilization in Vitro; Gonadotropin-Releasing Hormone; Hormone Antagonists; Humans; Luteal Phase; Luteinizing Hormone; Menotropins; Microinjections; Ovulation Induction; Pregnancy; Pregnancy Outcome; Pregnancy, Multiple; Pregnancy, Tubal; Retrospective Studies; Twins