A trial of a new regimen with clomiphene citrate administration to reduce the antiestrogenic effects on reproductive end organs.

Author(s): Kelekci S, Saygili-Yilmaz E, Inan I, Eminsoy G

Affiliation(s): Department of Obstetrics and Gynecology, Ankara State Hospital, Ankara, Turkey.

Publication date & source: 2004-09-10, Eur J Obstet Gynecol Reprod Biol., 116(1):54-7.

Publication type: Clinical Trial; Randomized Controlled Trial

OBJECTIVE: To determine the endocrinological and clinical outcomes of a 3-day clomiphene citrate (CC) regimen and compare it with the classical 5-day clomiphene citrate regimen. STUDY DESIGN: 59 patients, diagnosed with Class II ovulatory deficiency according to the criteria defined by WHO, were randomized into two groups. Patients in Group I received 50mg per day of CC for 3 days starting on the first day of the cycle during 72 cycles. Group II received 50mg per day of CC for 5 days starting on the fifth day during 64 cycles. RESULT(S): The ovulation rate was significantly higher in Group II (78.11%) compared to Group I (63.88%) (P < 0.05). However, the implantation rate was higher in Group I than Group II. CONCLUSION: We observed that starting CC on the first day of the cycle for 3 days would lead to higher implantation rates compared to the classical 5-day CC therapy.