NCI Drug Dictionary

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 lycopene
Carbon C 13 labeled lycopene used as a tracer for carotenoid metabolism studies in vivo. After oral administration of carbon C 13 lycopene, in combination with C 13 labeled phytoene and phytofluene, the absorption kinetics, distribution patterns, metabolism and targets of these carotenoids can be measured upon imaging of the non-radioactive C 13. Lycopene, a carotenoid pigment found in high concentrations in tomatoes as well as in other fruits and vegetables, serves as an antioxidant in vivo; its intake has been associated with a reduced risk of certain types of cancer and cardiovascular diseases.