New cystic fibrosis drug approved, extending treatments to 90% of patients

New cystic fibrosis drug approved, extending treatments to 90% of patients

New Vertex cystic fibrosis drug approved, extending treatments to 90% of patients

By ANDREW JOSEPH

BILL SIKES/AP

The approval of the Vertex Pharmaceuticals combination drug marks the company's fourth approved treatment for cystic fibrosis.

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