Shares of Solid Biosciences Inc. took it on the chin again, after the company reported a serious adverse event (SAE) from the second cohort of its phase I/II Ignite DMD study testing gene therapy SGT-001 in Duchenne muscular dystrophy. The latest setback comes three months after Cambridge, Mass.-based Solid disclosed disappointing data from the first patient cohort and a year after the FDA lifted a clinical hold placed on the same trial after the first patient treated suffered an SAE.