Long-term effectiveness and safety of GnRH agonist plus raloxifene administration in women with uterine leiomyomas

BACKGROUND: Our aim was to evaluate the long-term effectiveness and safety of GnRH agonist plus raloxifene administration in women with symptomatic uterine leiomyomas. METHODS: Fifty pre-menopausal women with uterine leiomyomas were treated with leuprolide acetate depot at dose of 3.75 mg/28 days and raloxifene hydrochloride at 60 mg/day for 18 cycles. At admission and after each six cycles of treatment, bone mineral density (BMD), uterine, leiomyoma and non-leiomyoma dimensions, serum bone metabolism markers, lipid, glucose and insulin levels were evaluated. Leiomyoma-related and climacteric-like symptoms were assessed using a daily diary. RESULTS: Throughout the study, no significant change in BMD or in any bone metabolism markers was observed. A significant decrease in uterine, leiomyoma and non-leiomyoma sizes was detected in comparison with baseline already after 6 months. No other significant change was observed at the successive follow-up visits. No significant change in lipid and glucose profile was detected throughout the study. The treatments were well tolerated. All treatment withdrawals (16%, eight out of 50) were due to lack of compliance, and none to drug-related adverse experiences. CONCLUSION: GnRH agonist plus raloxifene administration is an effective and safe treatment for pre-menopausal women with uterine leiomyomas.