Immune-System Booster Bests Chemotherapy in Cancer Study

Cancer researchers say a new drug that boosts the body's immune system to attack tumors is less toxic and performs better than traditional chemotherapy in fighting a form of lung cancer. In a study of 582 previously treated patients, Opdivo — one of three U.S.-approved drugs that stimulate the immune system — reduced by 27 percent the risk of death from one form of non-small-cell lung cancer, compared with chemotherapy. It also shrank tumors for nearly 20 percent of those patients,...

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