
Majority of Dose Level 3 participants with NPDR demonstrated a > 2-step DRSS improvement at 3 years post-one-time, in-office sura-vec gene therapy treatment, with no vision-threatening events and no additional treatment for diabetic retinopathy No IOI observed with short-course prophylactic topical steroids ROCKVILLE, Md., Sept. 24, 2026 /PRNewswire/ -- REGENXBIO Inc. (Nasdaq: RGNX) today announced positive long-term follow-up data from the Phase II ALTITUDE® study of investigational surabgene lomparvovec (sura-vec, ABBV-RGX-314) in diabetic retinopathy (DR) using suprachoroidal delivery.










