Abstract

The efficacy of long term consecutive treatment of clomiphene citrate (CC) was investigated in 608 infertile women associated with anovulatory disorders (classified as WHO group II amenorrhea). This study was performed in multi-centric facilities of obstetrics and gynecology by a retrospective randomized assessment. Infertile women associated with anovulation were treated by 50-150 mg of CC for five consecutive days in each treatment cycle. In this study, 200 pregnancies were observed and the total pregnancy rate was 32.9%. The number of abortions were 33 out of the 200 pregnancies (16.5%). The cumulative pregnancy rate within the pregnant subjects reached 90% in initial 10 treatment cycles and there was no difference between 50 mg and 100 mg of CC treatment. There were remarkable differences among the pregnancy rates achieved during consecutive treatments at the primary (clinics and hospital), secondary (regional center hospitals) and advanced facilities. Consecutive treatment by CC for infertile women associated with anovulation may be effective during initial 10 cycles. Although ovulation can be confirmed during the following cycles, the stimulation protocol should be reconsidered after 12 consecutive cycles therapy with CC, because cycle fecundity decreases. Hence, to improve pregnancy rates, it is important to check the previous administration of CC which reflects adversely on the subsequent conception rate especially in advanced facilities where these patients are referred to.

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