Sumitomo Pharma America Announces First Patient Receives Treatment in Phase 1/2a Study for its Investigational Therapy DSP-3077 for Retinitis Pigmentosa

MARLBOROUGH, Mass.--(BUSINESS WIRE)--Sumitomo Pharma America, Inc. (SMPA) today announced that the first patient in its study evaluating DSP-3077 in the treatment of non-syndromic retinitis pigmentosa (RP) has undergone subretinal implantation. DSP-3077 is an investigative regenerative cell therapy that leverages allogeneic retinal sheets derived from induced pluripotent stem (iPS) cells. This Phase 1/2a, open-label, single-arm, uncontrolled, dose-escalation study (NCT06891885) is evaluating tw