SAN DIEGO--(BUSINESS WIRE)--Ligand Pharmaceuticals Incorporated (NASDAQ:LGND) today announced its partner GlaxoSmithKline (NYSE:GSK) was granted approval from the Japanese Ministry of Health, Labour and Welfare for Revolade® (eltrombopag) for the treatment of the blood disorder, chronic idiopathic thrombocytopenic purpura (ITP). Eltrombopag is indicated for adult chronic ITP splenectomized patients who have not responded (are refractory) to other treatments, such as corticosteroids and immunoglobulins. Eltrombopag may also be considered as second-line treatment for adult non-splenectomized patients where surgery is contraindicated.