iBio, Inc. Common StockIBIO-610 achieved near-complete Activin E inhibition and fat-selective weight loss in obese primates, a significant preclinical milestone.

iBio announced that a single dose of its antibody candidate IBIO-610 reduced active Activin E levels by up to 98% in obese non-human primates, with suppression lasting through eight weeks. The therapy also promoted fat-selective weight loss, and when combined with Semaglutide, it drove greater visceral and total fat reduction while cutting lean mass loss by 73% compared with Semaglutide alone. CEO and CSO Martin Brenner said the findings represent the highest degree of Activin E inhibition reported to date in this class, achieved with a single dose, and highlighted the potential for low-frequency dosing. The full dataset will be presented at the European Association for the Study of Diabetes Annual Meeting in Milan from September 28 to October 2, 2026.
iBio, Inc. Common StockIBIO-610 achieved near-complete Activin E inhibition and fat-selective weight loss in obese primates, a significant preclinical milestone.