A strategy for enhancing the treatment efficacy of nanomedicines within the central region of solid tumors is developed by combining nanomedicines and free small-molecule vascular disrupting agents (VDAs). The nanomedicines (cis-diamminedichloroplatinum-loaded nanoparticles) primarily target cells at the tumor periphery whereas the free small-molecule VDA (combretastatin A4 disodium phosphate) efficiently kills the cancer cells within the central regions of the tumor.

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