A growing biopharmaceutical company that develops therapies to treat cystic fibrosis has named a new top lawyer.

Waltham, Massachusetts-based Eloxx Pharmaceuticals announced Monday that it has appointed Neil Belloff as executive vice president, general counsel and corporate secretary. Although Belloff comes to the role from an in-house post with biopharma giant Celgene Corp., he also has extensive experience in corporate law.