• Ligand Pharmaceuticals Inc., of San Diego, reported that the FDA granted priority review to its partner GlaxoSmithKline plc, of London, for the supplemental new drug application for Promacta (eltrombopag) to treat thrombocytopenia in adult patients with chronic hepatitis C. Promacta, marketed as Revolade outside the U.S., is approved in 89 countries to treat chronic immune thrombocytopenia.