Efficacy of an oral contraceptive containing drospirenone in the treatment of women with polycystic ovary syndrome.

OBJECTIVE: To investigate the efficacy of a combined oral contraceptive containing 30 microg ethinyloestradiol and 3 mg drospirenone in the treatment of hyperandrogenism affecting women with the polycystic ovary syndrome (PCOS). METHODS: Prospective open study of 20 women for six cycles. At the beginning and at the end of the study the following values were determined: the Ferriman-Gallwey (F-G) score, body mass index, waist/hip ratio, serum levels of testosterone, SHBG, immune reactive insulin (IRI), glucose, the free androgenic index, and insulin resistance (HOMA-IR). RESULTS: All 20 women completed six cycles of therapy. The medication was well tolerated. At the end of the study there was a significant improvement of hirsutism, expressed in the decrease of the F-G score, accompanied by a decrease of testosterone and an increase of SHBG values. The carbohydrate metabolism was not affected significantly. CONCLUSION: The combined oral contraceptive containing 30 microg ethinyloestradiol and 3 mg drospirenone is an effective drug in the treatment of hyperandrogenism in women with PCOS; it elicits few side effects and does not significantly influence insulin resistance.