Abstract: The method of treating a person having a cancer selected from carcinoma, sarcoma or hematopoietic cancer by administering (a) an effective amount of at least one anti-cancer drug selected from the group consisting of an epidermal growth factor receptor (EGFR) inhibitor, a vascular endothelial growth factor receptor (VEGFR) inhibitor and a Raf kinase inhibitor and (b) an effective amount of 5-(4-(6-(4-amino-3,5-dimethyl-phenoxy)-1-methyl-1H-benzimidazol-2-ylmethoxy)-benzyl)-thiazolidine-2,4-dione.dihydrochloride provided that said carcinoma is not lung cancer when an EGFR inhibitor is erlotinib. The invention also provides a pharmaceutical composition that may be used in practicing said method.

Abstract: A method of treating a cancer selected from the group consisting of breast cancer, pancreatic cancer, kidney cancer, prostate cancer, medulloblastoma, rhabdomyosarcoma, Ewing sarcoma, liposarcoma, multiple myeloma or leukemia. An effective amount of 5-(4-(6-(4-amino-3,5-dimethyl-phenoxy)-1-methyl-1H-benzimidazol-2-ylmethoxy)-benzyl)-thiazolidine-2,4-dione.dihydrochloride is administered to a patient having said cancer.

Abstract: Method of treating persons having carcinoma, sarcoma or hematopoietic cancer by administering (i) a compound of the formula (I) and (ii) an epidermal growth factor receptor (EGFR) inhibitor, a vascular endothelial growth factor receptor (VEGFR) inhibitor and pharmaceutical compositions for use in said method. A method for treating gastric cancer, colon cancer, lung cancer, breast cancer, pancreas cancer, kidney cancer, prostate cancer, medulloblastoma, rhabdomyosarcoma, Ewing sarcoma, liposarcoma, multiple myeloma and leukemia by administering a compound of the formula (I).

Abstract: Method of treating persons having carcinoma, sarcoma or hematopoietic cancer by administering (i) a compound of the formula (I) and (ii) an epidermal growth factor receptor (EGFR) inhibitor, a vascular endothelial growth factor receptor (VEGFR) inhibitor and pharmaceutical compositions for use in said method. A method for treating gastric cancer, colon cancer, lung cancer, breast cancer, pancreas cancer, kidney cancer, prostate cancer, medulloblastoma, rhabdomyosarcoma, Ewing sarcoma, liposarcoma, multiple myeloma and leukemia by administering a compound of the formula (I).

Abstract: A new compound, which we have named Leustroducsin H, has formula (I): ##STR1## and pharmaceutically acceptable salts thereof. This compound may be prepared by hydrolysis of naturally occurring Leustroducsins and the compound may be used for the treatment or prophylaxis of thrombocytopenia.