Weekly oxaliplatin (OXA), 5-fluorouracil (FU) and leucovorin (LV) as first line treatment for advanced colorectal cancer (CRC) –A phase II study

Document Type

Article

Department

Haematology and Oncology, East Africa

Abstract

Background: OXA has previously shown high efficacy in metastatic colorectal cancer when combined with 5FU/LV, mainly as a FOLFOX schedule. This phase II clinical study was designed to evaluate the efficacy and toxicity of a different OXA-5FU/LV schedule, as first line treatment of advanced colorectal cancer.

Methods: Forty-five patients with advanced CRC (median age 69 years, range 50–80, 34 males, 11 females were included. Sites of metastases included liver 25 (55.6%), lymph nodes 14 (31.1%), pelvis 12 (26.7%), peritoneum 11 (24.4%), other 9 (20.0%). Eleven patients had received prior adjuvant chemotherapy, and two radiotherapy outside of the target lesions. The regimen consisted of 200 mg/m2 LV (2h i.v.), 450 mg/m2 5-FU (bolus), and 45 mg/m2 OXA (2h i.v.), weekly for 6 weeks as induction therapy and then weekly for 3 weeks with 1 week rest until progression or unacceptable toxicity.

Results: All patients were evaluable for response and toxicity. Grade 3–4 toxicities were: neurotoxicity (4%), diarrhea (4%), leucopenia (2%), nausea/vomiting (2%) and allergy (2%). Dose reductions were necessary in 14 of 45 patients (31.1%) and treatment was early interrupted in 3 of 45 patients (2 progressive disease and 1 death due to acute myocardial infarction). Complete response was observed in 4/45 (8.9%), partial response in 11/45 (24.4%) for a response rate of 33.3%. At a median follow-up of 19 months, 29 patients had relapsed (64.5%). Median time to progression was 13.4 months [95% CI: 10.6–18.2], and median survival 20.4 months [95% CI: 17.2–28.2].

Conclusions: This schedule is highly effective as first line treatment for advanced CRC. It is a feasible, well-tolerated regimen, with low incidence of G3–4 toxicities. Further evaluation is warranted. No significant financial relationships to disclose.

Comments

This work was published before the author joined Aga Khan University.

Publication (Name of Journal)

Journal of Clinical Oncology

DOI

https://doi.org/10.1200/jco.2004.22.90140.3712

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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