News of a partial FDA clinical hold for pediatric patients after safety reports from an ongoing trial testing palovarotene in fibrodysplasia ossificans progressiva (FOP) identified cases of early growth plate closure sent shares of Ipsen SA (Paris:IPN) falling 13.6% Friday.

In late June, when Pfizer Inc. unveiled the first phase Ib data, mixed safety signal and all, for its Duchenne muscular dystrophy (DMD) gene therapy, PF-06939926, investors in Sarepta Therapeutics Inc. as well as Solid Biosciences Inc. watched with particular interest. The latter firm seems none the worse for wear, though, raising $60 million in a private placement.

Growing sales of its multiple sclerosis (MS) therapies and lower R&D expenses led Biogen Inc. to beat both top- and bottom-line expectations during the second quarter, despite lower-than-expected sales of its spinal muscular atrophy (SMA) drug, Spinraza (nusinersen).