Pfizer takes $230M hit after axing failed DMD gene therapy—and tosses out RSV combo vaccine

Pfizer’s phase 3 Duchenne muscular dystrophy (DMD) gene therapy failure has blown a $230 million hole in the New York pharma's second quarter financials (PDF). The drugmaker disclosed the discontinuation of the candidate—and the financial fallout—alongside the axing of a respiratory syncytial virus (RSV) combination vaccine.