Sanofi says Zaltrap approved in Europe for colorectal cancer PARIS (Reuters) - French drugmaker Sanofi said on Tuesday that its Zaltrap drug had been approved for marketing in the European Union to treat metastatic colorectal cancer. The approval came after a recent late-stage study of the drug showed significant improvement in survival among patients with colon cancer. Reporting By Christian Plumb, Editing by Dominique Vidalon