Summit Says Akeso Reports Survival Benefit for Ivonescimab in HARMONi-2

Eli Lilly and Company announced that the U.S. Food and Drug Administration has granted full approval to Inluriyo, or imlunestrant, in combination with Verzenio, or abemaciclib, for adults with ER-positive, HER2-negative, ESR1-mutated locally advanced or metastatic breast cancer whose disease progressed after at least one line of endocrine therapy. The decision rests on the Phase 3 EMBER-3 trial, in which the combination doubled median progression-free survival versus Inluriyo alone, at 11.1 months versus 5.5 months, with a hazard ratio of 0.53 and a 95% confidence interval of 0.35 to 0.80, among the 159 patients with ESR1-mutated metastatic breast cancer. In that trial, 92 patients received Inluriyo alone and 67 received the combination after an aromatase inhibitor, with or without a CDK4/6 inhibitor, in either the adjuvant or metastatic setting. The approval marks the second FDA clearance for Inluriyo in less than a year, following its September 2025 monotherapy approval for the same ER-positive, HER2-negative, ESR1-mutated metastatic population. Inluriyo is also being studied in the Phase 3 EMBER-4 trial in the adjuvant setting for ER-positive, HER2-negative early-stage breast cancer, the largest adjuvant oral SERD trial with more than 8,000 patients enrolled across 650-plus sites in more than 30 countries, with initial results anticipated in 2027. The combination is now available in the United States.