Acting three months before its scheduled decision date, the Food and Drug Administration yesterday approved a drug developed by Vertex Pharmaceuticals Inc. to treat some patients suffering from cystic fibrosis, a rare and often fatal genetic disease. The drug, called Kalydeco, is the second therapy from the Cambridge company to receive the FDA’s blessing in the past eight months. Its first drug, Incivek, was approved in May to combat the hepatitis C virus.
Unlimited access to BostonGlobe.com for only 99 cents for the first 4 weeks.Sign up
Are you a home delivery subscriber?
Get FREE access as part of your print subscriptionStart Here
Contact us for help