1-alpha-24-dihydroxyvitamin-d3 and Vitiligo

The treatment of vitiligo is still one of the most difficult dermatological challenges, although there are many therapeutic options. Narrow band ultraviolet B (NB-UVB) phototherapy is considered to be a very important modality for generalized vitiligo.. The aim of this study was to explore whether a combination of NB-UVB and topical agents would be superior to NB-UVB alone for treating vitiligo.. We searched the electronic databases such as PUBMED, EMBASE, Cochrane Library, and Web of Science. The primary outcome was the proportion of ≥50% repigmentation (a clinical significance), and secondary outcome was the proportion of ≥75% repigmentation (an excellent response).. Seven randomized controlled trials (RCTs) involving 240 patients (413 lesions) were included in this meta-analysis. The study showed no significant difference between NB-UVB combination therapy (NB-UVB and topical calcineurin inhibitor or vitamin D analogs) and NB-UVB monotherapy in the outcomes of ≥50% repigmentation and ≥75% repigmentation. However, lesions located on the face and neck had better results in ≥50% repigmentation (RR = 1.40, 95% CI 1.08-1.81) and ≥75% repigmentation (RR = 1.88, 95% CI 1.10-3.20) with NB-UVB and topical calcineurin inhibitor combination therapy vs. NB-UVB monotherapy.. The meta-analysis suggested that adding neither topical calcineurin inhibitors nor topical vitamin-D3 analogs on NB-UVB can yield significantly superior outcomes than NB-UVB monotherapy for treatment of vitiligo. However, addition of topical calcineurin inhibitors to NB-UVB may increase treatment outcomes in vitiligo affecting face and neck.

Topics: Administration, Cutaneous; Calcineurin Inhibitors; Calcitriol; Chemoradiotherapy; Dermatologic Agents; Dihydroxycholecalciferols; Facial Dermatoses; Humans; Neck; Randomized Controlled Trials as Topic; Skin Pigmentation; Tacrolimus; Ultraviolet Therapy; Vitamin D; Vitiligo

Several topical treatments such as ointments, keratolytics, dithranol, tar, corticosteroids and Vitamin D3 analogues are commonly used in the treatment of mild and/or moderate psoriasis. These treatments can be associated with a variety of local and systemic side effects, as well as to very often unsatisfactory results. The purpose of this critical review of the literature is to evaluate the efficacy and tolerability of the synthesis of new analogues of the Vitamin D3 Tacalcitol, which is formulated in ointment form at a concentration of 4 microg/g, for the treatment of mild and/or moderate psoriasis (involvement of <20% of the surface of the skin) and to evaluate whether this drug can be used in the treatment of other skin conditions. Based on existing data in the literature, Tacalcitol is an effective drug for the topical treatment of psoriasis and is also able to ensure that the effects last over time, even after treatment has stopped. Tacalcitol is also well tolerated because the onset of side effects, such as local irritation, pruriginous or burning sensations, were reported in only a small percentage of the subjects who were treated. Lastly, the marked regulatory effects it has on the proliferation and differentiation of keratinocytes, as well as on the immunocompetent cells, has led to suggestions that Tacalcitol may be used in other keratinisation disorders and in some hyperproliferative skin diseases. Evaluation of the effective indications to use in these conditions still requires further data confirming its effectiveness, opening the way to wider use of this molecule in dermatology.

Topics: Adult; Aged; Clinical Trials as Topic; Dermatologic Agents; Dihydroxycholecalciferols; Double-Blind Method; Female; Humans; Keratinocytes; Male; Multicenter Studies as Topic; Ointments; Phototherapy; Psoriasis; PUVA Therapy; Skin Diseases; Time Factors; Vitiligo

Phototherapy especially narrow-band UV-B (NBUVB) has been considered as mainstay of therapy in nonsegmental vitiligo (generalized type). Topical tacalcitol has also been claimed to be effective, either as monotherapy or as combination therapy.. Comparison of clinical efficacy and safety of NBUVB in combination with topical tacalcitol vs. NBUVB alone in vitiligo.. Thirty patients with symmetrical vitiliginous lesions were enrolled for 24 weeks. Patients were instructed to apply tacalcitol ointment on right side of body once daily. In addition, the whole body was irradiated with NBUVB thrice weekly. All the patients were examined, and lesional photography was done. Patients were also followed up for 6 months post-treatment.. Our study resulted in two key findings: (1) There was a statistically significant difference in mean percentage of repigmentation at 8, 16 and 24 weeks between combination therapy and NBUVB. (2) The mean cumulative dose and number of treatment sessions for initial repigmentation were significantly lower with combination therapy. No serious adverse effects were observed during the study period.. Topical tacalcitol potentiates efficacy of NBUVB as it enhances extent of pigmentation, decrease time to repigmentation and lowers the cumulative doses of NBUVB, thereby leading to greater patient satisfaction and improved compliance.

Topics: Adolescent; Adult; Dihydroxycholecalciferols; Female; Follow-Up Studies; Humans; Male; Middle Aged; Photochemotherapy; Prospective Studies; Ultraviolet Therapy; Vitiligo

Topics: Administration, Topical; Adolescent; Adult; Anti-Inflammatory Agents; Combined Modality Therapy; Dihydroxycholecalciferols; Esthetics; Female; Humans; Lasers, Excimer; Low-Level Light Therapy; Male; Middle Aged; Patient Satisfaction; Prospective Studies; Risk Assessment; Single-Blind Method; Treatment Outcome; Vitiligo; Young Adult

Vitiligo is a common skin disease which is difficult to treat. Approximately half of patients acquire the disease before the age of 20 years. This disease has a high stigmatizing impact but no ideal, aetiology-oriented, effective therapy has been found to date. Tacalcitol and other vitamin D analogues have been shown to have stimulating activity both on immunomodulatory mediators and on melanocytes in lesional skin.. To investigate the efficacy and safety of tacalcitol ointment plus sunlight exposure in the treatment of nonsegmental vitiligo.. A single-centre, randomized, double-blind, vehicle-controlled study including 80 patients with nonsegmental vitiligo was carried out in a specialized outpatient dermatology clinic within a tertiary care, university-affiliated hospital in Spain. Efficacy was assessed by quantification of the lesional repigmentation area at the end of the study compared with the baseline. Tacalcitol (n = 40) or matching placebo ointment (n = 40) was applied once a day at night. Daily exposure to sunlight for 30 min was performed. Treatment was continued for 4 months. The response of the lesions was clinically verified every 2 weeks by a blinded medical investigator. All adverse effects were recorded.. Eighty adult patients with nonsegmental vitiligo were recruited. Over 16 weeks, 64 patients completed the study requirements. There was no significant difference in the repigmentation response at the 16-week time point between the vehicle + sunlight exposure and the tacalcitol + sunlight exposure groups. No reduction in the size of the lesions > 25% was observed in the tacalcitol-treated patients. No serious adverse effects were observed.. The combination of tacalcitol with heliotherapy has no additional advantages compared with heliotherapy alone.

Topics: Administration, Topical; Adolescent; Adult; Aged; Combined Modality Therapy; Dermatologic Agents; Dihydroxycholecalciferols; Double-Blind Method; Female; Heliotherapy; Humans; Male; Middle Aged; Ointments; Skin Pigmentation; Treatment Outcome; Vitiligo

Vitiligo is a skin disease characterized by loss of normal pigmentation in the skin. Several treatments exist but none is really effective. Recently, perturbations of calcium homeostasis in vitiliginous epidermis have been described.. Based on these findings, the aim of this prospective, randomized, open-label study was to compare the effectiveness of narrow-band ultraviolet B (NB-UVB) phototherapy alone and the combination of NB-UVB and topical application of the vitamin D(3) analogue tacalcitol in the treatment of vitiligo.. In total, 32 subjects with generalized vitiligo and symmetrical lesions were enrolled in the study. Subjects were instructed to apply tacalcitol ointment daily to the lesion on the side randomly selected to receive combination therapy. All subjects received NB-UVB phototherapy on a twice-weekly schedule.. Addition of topical tacalcitol to NB-UVB treatment improved the extent of repigmentation and increased the response rate in patients with vitiligo compared with NB-UVB treatment alone.. Application of tacalcitol ointment in combination with twice-weekly NB-UVB phototherapy is an effective alternative treatment for patients with generalized vitiligo.

Topics: Administration, Cutaneous; Adolescent; Adult; Combined Modality Therapy; Dermatologic Agents; Dihydroxycholecalciferols; Female; Humans; Male; Middle Aged; Ointments; Prospective Studies; Skin Pigmentation; Treatment Outcome; Ultraviolet Therapy; Vitiligo

To study and compare the efficacy of combined 308-nm monochromatic excimer light (MEL) therapy with tacalcitol vs. that of MEL 308-nm therapy alone in treatment of vitiligo.. Thirty-eight patients with vitiligo were enrolled in a single-blind, within patient controlled clinical trial. Symmetrical or nearby lesions were randomly applied with either topical tacalcitol cream or vehicle. Each lesion was treated weekly with the 308-nm MEL, for a total of 12 sessions. Patients were examined at monthly intervals. The mean number of sessions and the cumulative dosage for initial repigmentation were calculated.. Thirty-five patients were evaluated. Treatment with tacalcitol and MEL resulted in higher percentages for excellent repigmentation (25.7%) compared with vehicle and MEL (5.7%) (P<0.05). Percentages for total response were 71.4% and 60%, respectively (P>0.05). The mean+/-SEM cumulative dose and number of excimer light exposures for initial repigmentation were, respectively, 3.93+/-0.59 J/cm2 and 4.52+/-0.49 at the tacalcitol side, and, respectively, 4.99+/-0.68 J/cm2 and 5.3+/-0.52 at the vehicle side (P<0.05).. Our results have shown that concurrent topical tacalcitol potentiates the efficacy of the 308-nm MEL in the treatment of vitiligo, and that this combination achieves earlier pigmentation with a lower total dosage.

Topics: Adolescent; Adult; Aged; Child; Dermatologic Agents; Dihydroxycholecalciferols; Female; Humans; Low-Level Light Therapy; Male; Middle Aged; Photochemotherapy; Radiation Dosage; Severity of Illness Index; Skin Pigmentation; Treatment Outcome; Ultraviolet Therapy; Vitiligo