(Reuters) - An experimental leukemia drug from Ariad Pharmaceuticals Inc eliminated the cancer from the bone marrow of nearly half of patients with a chronic form of the disease who had stopped responding to other drugs, according to a 12-month follow-up of a pivotal drug trial. The trial of the drug, ponatinib, which involved 444 patients, including 267 with chronic myeloid leukemia who had previously been treated with older drugs, also showed that 56 percent of chronic patients achieved the study's goal of a "major response," meaning the disease had nearly disappeared from the bone marrow. ... Get the complete story
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