NCI Drug Dictionary

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The NCI Drug Dictionary contains technical definitions and synonyms for drugs/agents used to treat patients with cancer or conditions related to cancer. Each drug entry includes links to check for clinical trials listed in NCI's List of Cancer Clinical Trials.

carbon C 13 phytoene
A 40-carbon hydrocarbon precursor of carotenoids radiolabeled to carbon C 13 and potentially used for tracer purposes of phytoene in vivo. Upon administration, phytoene is taken up and accumulates in various tissues. Upon imaging of the radioisotope, the distribution patterns and metabolism of phytoene can be further elucidated which may aid in the understanding of the bioactivity of this agent. Phytoene is a colorless precursor of many carotenoids, including the antioxidant lycopene. Check for active clinical trials using this agent. (NCI Thesaurus)