PROBLEM TO BE SOLVED: To provide a cancer treatment agent, using a curcumin, which enhances the antitumor effect of an anticancer agent, and reduces side effect involved in the administration of the anticancer agent.SOLUTION: The present invention provides a cancer treatment agent for non-oral administration use having a combination of a curcumin water-soluble material conjugate and an anticancer agent.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】抗がん剤の抗腫瘍効果を増強し、かつ抗がん剤投与に伴う副作用の低減効果を発揮するクルクミン類を用いる癌治療剤を提供する。【解決手段】クルクミン類の水溶性物質抱合体と、抗がん剤とを組み合わせたことを特徴とする非経口投与用癌治療剤等。【選択図】図1