PROBLEM TO BE SOLVED: To provide a high-purity texaphyrin metal complex, a method for making the complex, and a method for using the complex to treat a disease or the like including cancer and atherosclerosis.SOLUTION: The texaphyrin metal complex has anticancer activity and is represented by formula 1 (wherein: M is a trivalent metal cation such as Gd+3 each X is OH- or the like R3 to R8 are independently H, OH or the like R1 and R2 are independently H or 1 to 6C alkyl and each x is independently selected from 2 to 6).COPYRIGHT: (C)2013,JPO&INPIT【課題】高純度のテキサフィリン金属錯体、該錯体の作製方法、ならびに癌およびアテローム性動脈硬化症が含まれる疾患等を治療するための該錯体使用方法の提供。【解決手段】下記抗癌活性を有するテキサフィリン金属錯体。(式中、MはGd+3等の3価金属陽イオン、Xは、OH-等、R3~R8は、独立して、H、OH等、R1、R2は、独立して、HまたはC1~C6アルキル、Xは、独立に2~6より選択される。)【選択図】なし