GRI Bio’s GRI-0621 Demonstrates Encouraging Safety Results at Planned Interim 6-Week Analysis in Ongoing Phase 2a Study in Idiopathic Pulmonary Fibrosis (“IPF”)

Core Insights - The Independent Data Monitoring Committee (IDMC) has recommended the continuation of the study for GRI-0621, indicating no safety concerns in the reviewed data [1][3] - Interim results show GRI-0621 to be safe and well-tolerated in the first 24 patients evaluated, with no adverse events related to hyperlipidemia [3][4] - The company expects to report 6-week interim biomarker data in July 2025, with topline results anticipated in Q3 2025 [5] Company Overview - GRI Bio, Inc. is a biotechnology company focused on developing Natural Killer T (NKT) cell modulators for treating inflammatory, fibrotic, and autoimmune diseases [1][7] - GRI-0621 is a small molecule RAR-βɣ dual agonist that inhibits the activity of human Type 1 Invariant NKT (iNKT) cells, showing promise in improving fibrosis and liver function in preliminary trials [2][7] - The ongoing Phase 2a study is randomized, double-blind, and placebo-controlled, enrolling approximately 36 subjects with idiopathic pulmonary fibrosis (IPF) [4][5] Study Details - The Phase 2a study evaluates GRI-0621 at a dose of 4.5mg orally once daily for 12 weeks, with a primary endpoint focused on safety and tolerability [4][5] - Secondary endpoints include changes in serum biomarkers at weeks 6 and 12, pharmacokinetics assessment, and pharmacodynamic activity of GRI-0621 [4][5] - The study also includes a sub-study examining NKT cell activity in bronchoalveolar lavage fluid [4]