Promising immunotherapy helps adults with leukemia

A cancer treatment that genetically alters immune cells has shown success in 71 percent of adults with the most common form of leukemia, and for whom other medicines had failed, US researchers said Monday.The treatment, known as experimental chimeric antigen receptor (CAR) T-cell immunotherapy, has made headlines in recent years, particularly after it helped beat back pediatric leukemia in the first US child to undergo the treatment.The latest study involved 24 adults, aged 40 to 73, with chroni