The present invention provides methods for treating cancer in humans and other mammals comprising administering a chemotherapeutic agent, such as an interferon, and an aryl urea compound of Formula (I) : B-NH-C(O)-NH-L-M-L1-(Q)1-3 (I).In Formula (I), B and L and are each, independently, optionally substituted phenyl, naphthyl, a 5 or 6 membered monocyclic heteroaryl group, or an 8 to 10 membered bicyclic heteroaryl groupM is a bridging group.each Q is independently C(O)R4, C(O)OR4 and C(O)NR4R5 and L is optionally substituted phenyl, naphthyl, monocyclic heteroaryl or bicyclic heteroaryl, or a saturated or partially saturated, monocyclic or bicyclic carbocyclic moiety or heterocyclic moiety.
