A new drug-delivery-system of anticancer agents: activated carbon particles adsorbing anticancer agents

A new drug delivery system comprizing activated carbon particles adsorbing anticancer agents has been developed in order to enhance anticancer efficacy on local lesions and to reduce systemic toxicity. The system is designed to release the adsorbed anticancer agent slowly at a designated concentration level at the local site, and to allow the agent to remain for a long time at the local site, with affinity for the lymphatic system and the surface of cancer cells. Through this process, anticancer efficacy is enhanced at the local lesion and systemic toxicity decreases. Because the size of the particles influences the distribution of the agent, size is selected according to both targeted organs, i.e. lymphatic metastases, carcinomatous peritonitis, and administration methods, i.e. intramural, intracavitary, intrabronchial, or intratumoral administration.