Dienogest for Treatment of Endometriosis in Chinese Women: A Placebo-Controlled, Randomized, Double-Blind Phase 3 Study.

Background: Dienogest is a progestin with demonstrated efficacy in the treatment of endometriosis in European women. The objective of this study was to evaluate the efficacy and safety of dienogest in Chinese women.

Patients And Methods: This 24-week, randomized, double-blind, placebo-controlled multicenter (n = 23) study evaluated the efficacy and safety of 2 mg dienogest once daily in 255 Chinese women aged 18-45 years with laparoscopically diagnosed endometriosis and an endometriosis-associated pelvic pain (EAPP) score ≥30 mm on a 0-100 mm visual analog scale.