Developments REGENXBIO reports positive data from Phase 1/2 trial of RGX-202 in DMD REGENXBIO (NASDAQ: RGNX) has announced new positive interim data from the Phase 1/2 AFFINITY DUCHENNE trial of RGX-202—a potential best-in-class therapy for Duchenne muscular dystrophy (DMD). Trial investigator Carolina... March 11, 2026