Merck and Roche make diagnostics partnership

Swiss drugmaker Roche said it will develop diagnostic tests for use with Merck & Co.'s experimental cancer drugs as part of a partnership between the companies.
Merck and Roche did not disclose financial terms of the collaboration.
The two companies are among the largest drugmakers in the world. Merck, of Whitehouse Station, N.J., reported $45.99 billion in revenue last year, while Roche, which is based in Basel, reported about $50.45 billion.