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Crit Rev Oncol Hematol. 2000 Aug;35(2):101-8.

Capecitabine, a new oral fluoropyrimidine for the treatment of colorectal cancer.

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Dipartimento di Medicina Interna ed Oncologia Medica, Unità Operativa di Chemioterapia e Terapia Locoregionale dei Tumouri, Azienda Ospedaliera S. Maria, Terni, Italy.


Capecitabine (Xeloda)(R) was developed as a tumour-selective fluoropyrimidine carbamate to achieve higher intratumoural 5-FU level and lower toxicity than 5-FU. Capecitabine passes unchanged through the gastrointestinal tract and is metabolised in the liver to 5'-deoxy-5-fluorocytidine (5'-DFCR). Here it is converted to doxifluridine (5'-DFUR) and finally, 5'-DFUR is metabolised by thymidine phosphorilase to 5-FU at the tumour site. Preclinical studies have demonstrated capecitabine's activity in both 5-FU-sensitive and 5-FU-resistant tumours. In a randomised phase II trial in advanced colorectal cancer the recommended dose and schedule of Capecitabine is 2.510 mg/m(2)/day (total dose divided into two equal morning and evening doses) given in an intermittent schedule (2 weeks on/1 week off). Phase III trials in patients with advanced colorectal cancer show a better response rate than the Mayo Clinic schedule, with no differences in terms of DR, PFS. Diarrhoea and hand-foot syndrome were the principal grade 3/4 toxicities noted, occurring in 10% and 16% of patients, respectively. The selectivity of this drug opens an important prospective in the treatment of colorectal cancer in advanced and adjuvant setting.

[Indexed for MEDLINE]

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