Merck’s Keytruda shrinks lung cancer tumors, FDA approval sought

By Deena Beasley (Reuters) – Merck Co Inc’s Keytruda, approved for treating melanoma, was shown in a trial to shrink tumors in nearly half of advanced lung cancer patients with high levels of a protein used by tumors to evade the body’s own disease-fighting cells. …

Source:Merck’s Keytruda shrinks lung cancer tumors, FDA approval sought