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A liposome-encapsulated formulation of the benzoquinazoline folate analog OSI-7904 with antineoplastic activity. As a thymidylate synthase inhibitor, OSI-7904 noncompetitively binds to thymidylate synthase, resulting in inhibition of thymine nucleotide synthesis and DNA replication. Liposome encapsulation improves the efficacy and increases the half-life of OSI-7904. Check for \'https://www.cancer.gov/about-cancer/treatment/clinical-trials/intervention/C38694\' active clinical trials using this agent. (\'http://ncit.nci.nih.gov/ncitbrowser/ConceptReport.jsp?dictionary=NCI%20Thesaurus&code=C38694\' NCI Thesaurus)
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