iBio(IBIO) Newsfilter·2025-04-07 11:00Core Insights - iBio, Inc. has announced promising pharmacokinetics data for IBIO-600, a long-acting anti-myostatin antibody, suggesting a potential human half-life of up to 130 days, which could position it as a best-in-class treatment for muscle preservation and weight loss [1][4][5] - The company is on track to submit a regulatory application for IBIO-600 in Q1 2026, highlighting its commitment to innovation in obesity treatment [1][5] Group 1: IBIO-600 Development - The pharmacokinetics study involved non-human primates (NHPs) and indicated a half-life of 40 to 52 days in NHPs, with human estimates ranging from 57 to 130 days [4] - The study demonstrated a dose-dependent increase in lean mass and a reduction in fat mass, with the low-dose group showing a 3.1% increase in lean mass and the high-dose group a 5.1% increase after 8 weeks [3] - The potential for a dosing schedule of once every 3 to 6 months could significantly reduce the treatment burden for patients [4][5] Group 2: Activin E Antibody - iBio has also disclosed preclinical data for a first-in-class Activin E antibody, which effectively blocks Activin E signaling and shows promise as a novel obesity treatment [5] - In an exploratory study with obese mice, the Activin E antibody as a monotherapy resulted in a 4% fat-selective weight loss and an 18% reduction in total body fat compared to placebo [5] - When combined with semaglutide, the Activin E antibody enhanced total weight loss by an additional 9%, leading to an overall weight reduction of 34% and a 72% reduction in body fat [5]