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Oncology. 2010;78(3-4):205-9. doi: 10.1159/000313700. Epub 2010 Apr 26.

Dietary methionine restriction with FOLFOX regimen as first line therapy of metastatic colorectal cancer: a feasibility study.

Author information

1
Centre Jean Perrin, Unité de Recherche Clinique, UMR 990, Université Clermont 1, UFR Médecine, CIC 501, Clermont-Ferrand, France.

Abstract

The methionine (MET) dependency of tumor cells opens interesting perspectives for targeting tumor cells and potentiating chemotherapy treatment, like 5-fluorouracil (5-FU) and platinum compound. Since MET deprivation can individually potentiate the different chemotherapeutic agents used in the 48-hour combined regimen of 5-FU, leucovorin and oxaliplatin (FOLFOX) regimen, we initiated a feasibility study associating dietary MET restriction with the FOLFOX regimen in patients with metastatic colorectal cancer.

OBJECTIVES:

(i) To evaluate the depletion in the plasma MET concentration, and (ii) to assess the feasibility of this combination.

METHODS:

Eleven patients were enrolled in this study. They received a median number of 3 two-week cycles of a MET-free diet (3 consecutive days) and FOLFOX6 regimen.

RESULTS:

The plasma MET concentration was reduced by dietary MET restriction, with a depletion of 58% on the 1st day of MET-free diet. Indeed, we demonstrated the feasibility and good tolerance (nutritional status and toxicity) of the association of a MET-free diet with the FOLFOX regimen. Despite good compliance to the diet, this study revealed the difficulty of administering this combination during further months. Among the 4 patients evaluable for response, 3 experienced a partial response and 1 patient a disease stabilization.

PMID:
20424491
DOI:
10.1159/000313700
[Indexed for MEDLINE]

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