The disclosed method of treating a malignant solid tumor in a subject includes the steps of administering to the subject an immunomodulatory dose of a radioactive phospholipid metal chelate compound that is differentially retained within malignant solid tumor tissue, and performing in situ tumor vaccination in the subject by introducing into at least one of the malignant solid tumors one or more agents capable of stimulating specific immune cells within the tumor microenvironment, or by performing another method of in situ tumor vaccination, In a non-limiting example, the radioactive phospholipid metal chelate compound has the formula (I): wherein R1 comprises a chelating agent that is chelated to a metal atom, wherein the metal atom is an alpha, beta or Auger emitting metal isotope with a half life of greater than 6 hours and less than 30 days. In one such embodiment, a is 1, n is 18, m is 0, b is 1, and R2 is -N+(CH3)3.
在对受试者进行治疗恶性实体肿瘤的方法中,包括以下步骤:向受试者施用免疫调节剂量的放射性
磷脂金属螯合物化合物,该化合物在恶性实体肿瘤组织中有差异地保留,并通过向至少一个恶性实体瘤中引入能够刺激肿瘤微环境内特定免疫细胞的一个或多个药物,或通过执行另一种原位肿瘤疫苗接种方法,在受试者中进行原位肿瘤疫苗接种。在一个非限制性示例中,放射性
磷脂金属螯合物化合物具有以下公式(I):其中R1包括与
金属原子螯合的
螯合剂,
金属原子是半衰期大于6小时且小于30天的α、β或奥格发射
金属同位素。在这样的一个实施例中,a为1,n为18,m为0,b为1,R2为-N+(
CH3)3。