Viatris' MR-139 Blepharitis Ointment Fails to Meet Primary Endpoint in Phase 3 Study

VTRS
September 18, 2025
Viatris Inc. announced that a randomized, double-masked, vehicle-controlled, Phase 3 study evaluating pimecrolimus 0.3% (MR-139) ophthalmic ointment for blepharitis did not meet its primary endpoint. The study aimed for complete resolution of debris after six weeks of twice-daily dosing. Viatris Chief R&D Officer Philippe Martin stated that given the study did not meet its objective, the company is evaluating the appropriate next steps for the Phase 3 program. This may include revising the planned additional Phase 3 study for MR-139. The failure of a late-stage clinical trial represents a significant setback for Viatris's pipeline in ophthalmology. This outcome means that MR-139 will not proceed as planned for the blepharitis indication, leading to a loss of investment in this specific asset and delaying potential future revenue streams. The content on BeyondSPX is for informational purposes only and should not be construed as financial or investment advice. We are not financial advisors. Consult with a qualified professional before making any investment decisions. Any actions you take based on information from this site are solely at your own risk.