Vertex Pharmaceuticals Inc.'s newest cystic fibrosis drug Orkambi (lumacaftor/ivacaftor) has exceeded Wall Street projections for prescriptions and patient starts, the company reported during its third quarter earnings call Oct. 28.
Orkambi, which combines the cystic fibrosis transmembrane conductance regulator (CFTR) gene potentiator Kalydeco (ivacaftor) with the CFTR corrector lumicaftor, obtained...