Effects of ospemifene on overactive bladder in postmenopausal women with vulvovaginal atrophy

Abstract

Objective Overactive bladder (OAB) is a complex and multifactorial syndrome associated with urinary frequency, urgency and incontinence. The menopause-associated hormonal changes play a role in the development of this condition. Vaginal estrogens are effective in improving OAB in postmenopausal women (PMW) with vulvovaginal atrophy (VVA). Ospemifene is a selective estrogen receptor modulator licensed for the treatment of VVA. This study aimed to evaluate the effects of ospemifene on OAB symptoms in PMW with VVA. Methods Forty PMW suffering from OAB and VVA received oral ospemifene (60 mg/day) for 12 weeks. All patients were assessed with a urodynamic study, a 3-day bladder diary and validated questionnaires (International Consultation on Incontinence Questionnaire – Urinary Incontinence Short Form [ICIQ-UI SF] and International Consultation on Incontinence Questionnaire – Overactive Bladder [ICIQ-OAB]) at enrollment and at the end of the study. Results Cytometric capacity, bladder compliance and verbal sensory threshold responses during bladder filling were improved after treatment. The voiding diary showed a significant reduction of daily voids, urge urinary incontinence episodes and nocturnal events. The median overall scores of the ICIQ-UI and ICIQ-OAB were also significantly improved. Conclusions Our study suggest that treatment with ospemifene in PMW suffering from OAB is associated with a reduction of OAB symptoms due to a decreased bladder sensitivity and with an improvement in quality of life.