Ocugen IncInterim trial data showed negative treatment effect for OCU410ST, causing shares to plunge.

Ocugen shares fell nearly 14% on Wednesday, marking their worst single-day decline since May, after an interim analysis from a Phase 2/3 trial of OCU410ST, its experimental therapy for Stargardt disease, showed a negative treatment effect. The company disclosed in a regulatory filing that the independent Data Monitoring Committee observed the negative effect in an interim sample of 26 trial subjects, focusing on atrophic lesion size among those who completed eight-month assessments. The DMC recommended continuing the trial until eight-month follow-up data for the entire study population are available, noting that futility could be considered based on the interim results. Ocugen said it intends to follow the recommendation and analyze the full dataset, with plans to submit a U.S. marketing application for OCU410ST in mid-2027 following a top-line readout in Q2 2027.
Ocugen IncInterim trial data showed negative treatment effect for OCU410ST, causing shares to plunge.