The study is a prospective, dose-finding, randomized, parallel group, double-blind, placebo-controlled phase 2b study investigating the efficacy and safety of OBE2109 in the treatment of 330 women with moderate-to-severe endometriosis associated pain.
Subject will be randomized to one of 6 treatment groups in a 1:1:1:1:1:1 ratio (1 placebo group, 5 dose groups with different dosage/regimen).
Eligible subjects will be offered the opportunity to continue treatment with OBE2109 in an extension phase. Subjects who do not continue in the extension will enter the treatment-free follow-up phase of the study.