Immunotherapy study yields "dramatic results" against lung cancer
In a major advance in the treatment of lung cancer, researchers found that adding immunotherapy, drugs designed to trigger a patient's immune system, to standard chemotherapy cuts a patient's risk of dying or having the cancer worsen within one year in half. Dr. David Agus joins "CBS This Morning" from Los Angeles to discuss the "groundbreaking" study and what the development means for treating other cancers.