Ifupinostat: First Approval.

Ifupinostat (; Betlin) is a first-in-class dual phosphoinositide 3-kinase α (PI3Kα)/histone deacetylase (HDAC) inhibitor being developed by BeBetter Med for the treatment of relapsed or refractory diffuse large B-cell lymphoma. On the 30th June 2025, ifupinostat received its first approval in China as a monotherapy for adults with relapsed or refractory diffuse large B-cell lymphoma who have received at least two lines of systemic therapy. Continued approval is dependent on the results of a confirmatory, randomized, controlled phase 3 trial. This article summarizes the milestones in the development of ifupinostat leading to this first approval as a monotherapy for adults with relapsed or refractory diffuse large B-cell lymphoma who have received at least two lines of systemic therapy.