With top-line pivotal data with gene therapy RGX-202 for Duchenne muscular dystrophy (DMD) due in the next quarter, Regenxbio Inc. rolled out positive interim data from the phase I/II Affinity trial at the Muscular Dystrophy Association Clinical and Scientific Conference (MDA) in Orlando, Fla., where Bridgebio Pharma Inc., Capricor Therapeutics Inc., and Solid Biosciences Inc. also had clinical findings to talk about.