What's Happening?
AN2 Therapeutics, a biopharmaceutical company, has announced that the U.S. Food and Drug Administration (FDA) has cleared an Investigational New Drug (IND) application for a trial of epetraborole in patients with Mycobacterium abscessus lung disease.
This trial, led by Dr. Kevin Winthrop at Oregon Health & Science University, will be a multicenter, randomized, double-blind, placebo-controlled study. It aims to evaluate the safety, efficacy, and pharmacokinetics of epetraborole, an oral treatment option for patients who currently rely on complex intravenous therapies. The study will enroll approximately 90 patients across 10-15 sites in the U.S., focusing on early-stage, treatment-naive patients.
Why It's Important?
The trial represents a significant step in addressing the unmet medical needs of patients with M. abscessus lung disease, a condition resistant to most oral antibiotics and lacking FDA-approved treatments. The success of this trial could lead to the first FDA-approved oral therapy for this chronic lung infection, potentially improving patient outcomes and reducing the burden of current treatment regimens. With an estimated 120,000-150,000 people in the U.S. affected by NTM lung disease, of which 10-15% are caused by M. abscessus, this development could have a substantial impact on public health and open new market opportunities for AN2 Therapeutics.
What's Next?
The trial is expected to begin patient enrollment in the first quarter of 2026. Positive results could establish a proof of concept for epetraborole, informing the design of subsequent pivotal trials. If successful, this could lead to regulatory approval and commercialization, providing a new treatment option for patients with M. abscessus lung disease. The collaboration with Dr. Winthrop and the involvement of multiple U.S. sites highlight the trial's potential to advance the standard of care for this challenging condition.









