Toxicity associated with capecitabine plus oxaliplatin in colorectal cancer before and after an institutional policy of capecitabine dose reduction |
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Authors: | Baird R Biondo A Chhaya V McLachlan J Karpathakis A Rahman S Barbachano Y Cunningham D Chau I |
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Affiliation: | Department of Medicine, Royal Marsden Hospital, London & Surrey, UK. |
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Abstract: | Background: Capecitabine plus oxaliplatin (CAPOX) is an established treatment option in colorectal cancer, but can be associated with severe toxicities.Methods: Following reporting of severe diarrhoea and dehydration with capecitabine 2000 mg m–2 per day plus oxaliplatin every 3 weeks (CAPOX 2000) in 2006, we instituted a policy change to reduce capecitabine dose to 1700 mg m–2 per day (CAPOX 1700). We undertook a retrospective analysis comparing toxicities encountered before and after this dose change.Results: Of the 400 patients treated, no significant differences were seen between the CAPOX 2000 and CAPOX 1700 in grades 3 and 4 diarrhoea (21% vs 19% P=0.80), stomatitis (0% vs 1% P=0.50) or grades 2–4 hand foot syndrome (16% vs 11% P=0.18). Grades 3 and 4 neutropenia (9.5% vs 3.5% P=0.03) and all grades hyperbilirubinaemia (60% vs 40% P<0.0001) were significantly reduced with CAPOX 1700. Rates of hospitalisation due to toxicities were not different between two groups (13% vs 11% P=0.53).Conclusions: No clinically or statistically significant differences in gastrointestinal toxicities or hospitalisation rate were seen after reducing our routine capecitabine dose from CAPOX 2000 to CAPOX 1700. |
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Keywords: | colorectal cancer oxaliplatin capecitabine |
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