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In 2001, the U.S. Food and Drug Administration (FDA) approved a medication called alemtuzumab to help treat B-cell chronic lymphocytic leukemia, a type of cancer. In 2014, the same drug was approved by the FDA for the treatment of multiple sclerosis (MS). Sanofi Genzyme soon released a version of the drug for MS patients under the brand name Lemtrada. Since (more...)