Variable muscle expression of frataxin (FXN) protein in muscle plus five adverse events (AEs) of injection-site thrombophlebitis in the multiple ascending-dose (MAD) phase I study hamstrung Design Therapeutics Inc. in its Friedreich’s ataxia (FA) bid with DT-216. Wall Street punished the Carlsbad, Calif.-based firm’s stock (NASDAQ:DSGN) with a knockdown of 70%, or $5.17, leaving shares at $2.17 when the market closed Aug. 15.