Abstract
Purpose
Metastatic colorectal cancer (MCRC) remains a significant public health concern. The objectives of present study are to investigate the efficacy and safety profile of capecitabine-based chemotherapy in the treatment of MCRC.
Materials and methods
We performed a computerized search using combinations of the following keywords: “metastatic colorectal cancer,” “Xeloda,” “chemotherapy,” “capecitabine,” or “5-fluorouracil.”
Results
Treatment with capecitabine chemotherapy was associated with a significantly prolonged progression-free survival (WMD = 1.24; 95% CI, 0.04–2.44; P = 0.04), whereas overall survival was not statistically significant (WMD [random] = 0.29; P = 0.75). Patients in both capecitabine and 5-fluorouracil groups had equal 1-, 2-, and 3-year survival (OR = 0.82, 95% CI: 0.59–1.12, P = 0.21; OR = 0.84, 95% CI: 0.61–1.15, P = 0.27; OR = 1.26, 95% CI: 0.78–2.05, P = 0.34; respectively). The analysis also demonstrates that the response rate of capecitabine-based chemotherapy was comparable to 5-fluorouracil-based chemotherapy (OR = 1.02, 95% CI, 0.90–1.14; P = 0.80). When comparing single-agent capecitabine against 5-fluorouracil/leucovorin, our results showed an overall OR of 1.56 (95% CI, 1.16–2.09) in favor of the capecitabine arm. When toxicity was evaluated, a statistically significant benefit with capecitabine-based therapy was seen, especially for grade 3/4 neutropenia (OR, 0.80; 95% CI, 0.71–0.91; P = 0.00005).
Conclusions
Capecitabine-based chemotherapy demonstrated a significantly superior progression-free survival, equivalent overall survival, and comparable response rate with 5-fluorouracil-based chemotherapy. These observations support the use of capecitabine-based chemotherapy in the treatment of MCRC as a first-line or as a neoadjuvant modality.
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Acknowledgments
The study was supported by Leading Academic Discipline Project of Shanghai Municipal Education Committee (J50208) and Shanghai Municipal Natural Science Foundation (No. 09ZR1417900). We thank the following investigators for supporting this meta-analysis by providing updated information on their studies (in alphabetical order): Dr Kohne CH, Klinikum Oldenburg, Germany; Dr Eduardo DR, Hospital Clínico San Carlos, Spain; Dr Cutsem EV, University Hospital Gasthuisberg, Belgium; Dr Skof E, Institute of Oncology, Slovenia; Dr Cassidy J, Glasgow University, Scotland; Dr Rothenberg ML, Vanderbilt-Ingram Cancer Center, USA; Dr Martoni AA, S. Orsola-Malpighi Hospital, Italy; Dr Comella P, National Tumour Institute, Italy; Dr Hoff PM, M.D. Anderson Cancer Center, USA; Dr Porschen R, Hospital Bremen, Germany.
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The authors declare that they have no competing interests.
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W. Ling and J. Fan are treated as co-first authors.
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Ling, W., Fan, J., Ma, Y. et al. Capecitabine-based chemotherapy for metastatic colorectal cancer. J Cancer Res Clin Oncol 137, 927–938 (2011). https://doi.org/10.1007/s00432-010-0954-0
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DOI: https://doi.org/10.1007/s00432-010-0954-0