Capecitabine– treatment of metastatic breast and colorectal cancers.

15 06 2013

New Drug Approvals

Capecitabine, pentyl [1-(3,4-dihydroxy-5-methyltetrahydrofuran-2-yl)-5-fluoro-2-oxo-1H-pyrimidin-4-yl]carbamate

Capecitabine  (Xeloda, Roche) is an orally-administered chemotherapeutic agent used in the treatment of metastatic breast and colorectal cancers. Capecitabine is a prodrug, that is enzymatically converted to 5-fluorouracil in the tumor, where it inhibits DNA synthesis and slows growth of tumor tissue.The activation of capecitabine follows a pathway with three enzymatic steps and two intermediary metabolites, 5′-deoxy-5-fluorocytidine (5′-DFCR) and 5′-deoxy-5-fluorouridine (5′-DFUR), to form 5-fluorouracil


Capecitabine  is a chemotherapy drug that is administered as a treatment for a variety of cancer types, including bowel cancer, stomach cancer, breast cancer and oesophageal cancer. It acts as a prodrug, undergoing a three-step enzymic conversion into 5-fluorouracil in the tumour, where it inhibits DNA synthesis and thus slows growth of tumour tissue. Capecitabine can be synthesized from the readily available starting materials D-ribofuranose and cytosine [1].

When capecitabine is used for long-term treatment of recurrent cancers, one of the side-effects can be…

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