(NECN) - Vertex CEO Dr. Jeff Leiden joined NECN for this week's edition of CEO Corner.

How does a drug company like Vertex decide what kinds of drugs to create and illnesses to treat? 

Leiden said that they aim high, think big and try to find breakthrough drugs that really change lives, as they did with Hepatitis C and Cystic Fibrosis. He talked about what they are working on next.