INSIGHT-Tests for new cancer drugs not reliable enough, doctors say
June 02, 2015 at 01:00 AM EDT
CHICAGO, June 2 (Reuters) - Drugmakers including Bristol-Myers Squibb Co and Merck & Co are testing which patients will most benefit from new cancer treatments based on a protein found in their tumors, but that guide, known as a biomarker, may be too unreliable, researchers and health experts said.