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 ORIGINAL ARTICLE

Efficacy and safety of capecitabine and oxaliplatin (CAPOX) treatment in colorectal cancer: An observational study from a tertiary cancer center in South India


1 Department of Pharmacology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry, India
2 Department of Medical Oncology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry, India

Correspondence Address:
Biswajit Dubashi,
Department of Medical Oncology, Jawaharlal Institute of Post Graduate Medical Education and Research, Puducherry
India
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijc.IJC_618_19

PMID: 33402602

Background: 5-fluorouracil (5-FU) was the standard treatment care for colorectal cancer (CRC), however, its efficacy was limited due to safety concerns. Capecitabine and oxaliplatin (CAPOX) treatment was found equivalent to 5-FU in efficacy and preferred now due to easy management and convenience in administration. Hence, the present study aims to determine the efficacy and safety associated with CAPOX treatment in a real world non clinical setting. Methods: 145 treatment-naive and newly diagnosed CRC patients were recruited in the study. Each patient received oxaliplatin 130 mg/m2 infusion over 2 hours on day 1 and oral capecitabine 1000 mg/m2 in divided doses twice daily for the next 14 days of a 21-day cycle. Results: In the adjuvant setting, the observed disease-free survival rate was 62% (n=34) in the colon and 67% (n=15) in the rectum cancer patients at 2 years. The observed overall survival rate in the colon and rectal cancer was 80% (n=44) and 83% (n=18) respectively at 2 years. In the palliative setting the observed progression-free survival rate was 28% (n=13) in the colon and 33% (n=7) in rectal cancer patients at 2 years. The observed OSR at 2 years was 64% (n=30) in the colon and 67% (n=14) in the rectal cancer patients. Thrombocytopenia (17, 11.7%) and diarrhea (8, 5.5%) were the most commonly observed grade 3/4 hematological and gastrointestinal toxicities. Hand-foot syndrome and peripheral neuropathy were the major contributors for dose reduction (14, 9.6%), treatment delay (8, 5.4%), and drug discontinuation (9, 6.1%) in the study cohort. Conclusion: CAPOX treatment was found to be effective but associated with several dose-limiting toxicities.




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