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.

Adding I.V. sildenafil – the active ingredient in Viagra – to inhaled nitric oxide (iNO) therapy for newborns with persistent pulmonary hypertension (PPHN) failed to achieve a statistically significant reduction in treatment failure rates or time on iNO vs. iNO alone in the first part of a phase III study sponsored by Pfizer Inc.