ArticleSaudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society2022
Clinical pharmacokinetics of capecitabine and its metabolites in colorectal cancer patients.
Article in Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 10 citations in OpenAlex.
- Single-Nucleotide Polymorphisms in Capecitabine Bioactivation Genes and Their Contribution to Breast Cancer Therapy.Pharmaceutics · 2026Article
- Dual Cardiotoxicity of Capecitabine: Coronary Vasospasm and QT Prolongation in a Patient With Gastric Adenocarcinoma.JACC. Case reports · 2026Article
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Authors and funding
6 authors at 1 institution in 1 country.
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Abstract
Background: Capecitabine is one of the fluoropyrimidine anticancer agents which is extensively used in the management of colorectal cancer. We have noticed a discrepancy between the doses we are using in our patients and the recommended dosing regimen. Thus, this study aims to assess the pharmacokinetic parameters of capecitabine and its metabolites in colorectal cancer patients and report some clinical outcomes. Methods: This study is a prospective observational pharmacokinetic study. It was conducted at the Oncology Center at King Saud University Medical City. The study included adult patients who received capecitabine for any stage of colorectal cancer. Blood samples were collected following the oral administration of capecitabine. Capecitabine and its metabolites concentration in plasma were determined using HPLC and pharmacokinetic parameters were estimated using PKanalix software. Results: The study included 30 colorectal cancer patients with a mean age of 58 ± 9.5 years and ECOG Performance Status of 0-1. 60 % of the patients were in stage IV. The average total daily dose was 1265 ± 350 mg/m Conclusion: Despite using lower doses, capecitabine and its metabolites parameters were found to be similar to previous studies except for the longer half-life found in our patients. In addition, lower doses of capecitabine showed acceptable response rate which might indicate that higher doses are not always necessary to achieve desired therapeutic effect.
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