Yutaka Osuga1, Yoshifumi Seki2, Masataka Tanimoto2, Takeru Kusumoto2, Kentarou Kudou2, Naoki Terakawa3. 1. Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. Electronic address: yutakaos-tky@umin.ac.jp. 2. Takeda Development Center Japan, Takeda Pharmaceutical Company Limited, Osaka, Japan. 3. Department of Obstetrics and Gynecology, Tottori University Faculty of Medicine, Yonago, Japan.
Abstract
OBJECTIVE: To evaluate the efficacy and safety of three dose levels of relugolix, a gonadotropin-releasing hormone receptor antagonist, compared with placebo and leuprorelin in women with endometriosis-associated pain. DESIGN: Phase 2, multicenter, randomized, double-blind, placebo-controlled study. SETTING: Hospitals and clinics. PATIENT(S): Adult premenopausal women with endometriosis who had dysmenorrhea and endometriosis-associated pelvic pain. INTERVENTION(S): During a 12-week treatment period, patients received relugolix 10 mg (n = 103), 20 mg (n = 100), or 40 mg (n = 103) as a daily oral dose; placebo (n = 97) as a daily oral dose; or leuprorelin 3.75 mg (n = 80) as a monthly subcutaneous injection. MAIN OUTCOME MEASURE(S): Primary endpoint was the change from baseline in mean visual analog scale score for pelvic pain during 28 days before the end of treatment. RESULT(S): The mean changes in mean visual analog scale score for pelvic pain were -3.8 mm in the placebo group; -6.2, -8.1, and -10.4 mm in the relugolix 10-mg, 20-mg, and 40-mg groups; respectively; and -10.6 mm in the leuprorelin group. The major adverse events with relugolix were hot flush, metrorrhagia, menorrhagia, and irregular menstruation, and bone mineral density decrease in a dose-response manner, which were also observed in the leuprorelin group with a frequency comparable with that in the relugolix 40-mg group. CONCLUSION(S): Oral administration of relugolix alleviated endometriosis-associated pain in a dose-response manner and was generally well tolerated. Relugolix 40 mg demonstrated efficacy and safety comparable with those of leuprorelin. CLINICAL TRIAL REGISTRATION NUMBER: NCT01458301.
RCT Entities:
OBJECTIVE: To evaluate the efficacy and safety of three dose levels of relugolix, a gonadotropin-releasing hormone receptor antagonist, compared with placebo and leuprorelin in women with endometriosis-associated pain. DESIGN: Phase 2, multicenter, randomized, double-blind, placebo-controlled study. SETTING: Hospitals and clinics. PATIENT(S): Adult premenopausal women with endometriosis who had dysmenorrhea and endometriosis-associated pelvic pain. INTERVENTION(S): During a 12-week treatment period, patients received relugolix 10 mg (n = 103), 20 mg (n = 100), or 40 mg (n = 103) as a daily oral dose; placebo (n = 97) as a daily oral dose; or leuprorelin 3.75 mg (n = 80) as a monthly subcutaneous injection. MAIN OUTCOME MEASURE(S): Primary endpoint was the change from baseline in mean visual analog scale score for pelvic pain during 28 days before the end of treatment. RESULT(S): The mean changes in mean visual analog scale score for pelvic pain were -3.8 mm in the placebo group; -6.2, -8.1, and -10.4 mm in the relugolix 10-mg, 20-mg, and 40-mg groups; respectively; and -10.6 mm in the leuprorelin group. The major adverse events with relugolix were hot flush, metrorrhagia, menorrhagia, and irregular menstruation, and bone mineral density decrease in a dose-response manner, which were also observed in the leuprorelin group with a frequency comparable with that in the relugolix 40-mg group. CONCLUSION(S): Oral administration of relugolix alleviated endometriosis-associated pain in a dose-response manner and was generally well tolerated. Relugolix 40 mg demonstrated efficacy and safety comparable with those of leuprorelin. CLINICAL TRIAL REGISTRATION NUMBER: NCT01458301.
Authors: Jacques Donnez; Olivier Donnez; Jean Tourniaire; Michel Brethous; Elke Bestel; Elizabeth Garner; Sébastien Charpentier; Andrew Humberstone; Ernest Loumaye Journal: J Clin Med Date: 2021-12-10 Impact factor: 4.241