GENEVA, Switzerland – October 13, 2022 – ObsEva SA (NASDAQ: OBSV; SIX: OBSN), a biopharmaceutical company developing novel therapies for women’s health, today announced that Yuyuan Bioscience’s (Yuyuan) IND application for a Phase 1 clinical trial of nolasiban has been approved by the Center for Drug Evaluation at the Chinese National Medical Products Administration. Nolasiban is a novel, oral oxytocin receptor antagonist being developed to improve clinical pregnancy and live birth rates in women undergoing in vitro fertilization. Yuyuan plans to initiate a single-center, randomized, double-blind, placebo-controlled Phase 1 clinical trial in China to evaluate the safety, tolerability, pharmacokinetics and pharmacodynamic characteristics of nolasiban in healthy adult female subjects in China.