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Japanese Journal of Clinical Oncology
Year: 2009  |  Volume: 39  |  Issue: 9  |  Page No.: 601 - 605

A Feasibility Study of UFT/LV and Irinotecan (TEGAFIRI) in Advanced or Metastatic Colorectal Cancer: Osaka Gastrointestinal Cancer Chemotherapy Study Group (OGSG) PROG 0304

H Ishida, Y Miyake, M Fukunaga, Y Watanabe, T Kato, H Takemoto and H. Furukawa    

Abstract: Objective

This is a feasibility trial of oral uracil/tegafur (UFT)/oral leucovorin (LV) and irinotecan (TEGAFIRI) with maximum dose confirmed in Japan. To document the toxicity and define the objective response rate (RR); and determine progression-free and overall survival.

Methods

Patients with advanced or metastatic colorectal cancer (CRC) received: UFT 300 mg/m2, LV 75 mg/body and CPT-11 150 mg/m2 (UFT and LV given on days 1–14, and CPT-11 on day 1, every 3 weeks). Eligibility: ECOG performance status (PS) 0–1, adequate bone marrow/liver function and serum creatinine level less than institutional normal value.

Results

Eighteen patients enrolled, 17 evaluable for toxicity and response and 1 patients recalled chemotherapy upon registration. Characteristics: 61% male, median age 63.5 years (51–71). Seventy-two per cent PS 0, 50% first line. One hundred and eighty-six cycles have been delivered. The common Grade 3–4 toxicities were neutropenia (35.3%), leukopenia (29.4%), diarrhea (5.9%), anorexia (5.9%), vomiting (5.9%) and dizziness (5.9%). There was no episode of febrile neutropenia. No death occurred on treatment: Overall RR was 41.2% [7/17: 1 complete response (CR) + 6 partial response (PR)]. Progression-free survival (PFS) is 6.9 months, median survival time (MST) is 25.1 months and 1-year survival rate is 70.6%, whereas PFS 15.0 months, MST 43.6+ months and 1-year survival rate 100% in cases with CR or PR.

Conclusions

Approved dose of CPT-11 is 150 mg/m2 in Japan. As is lower dose with CPT-11, TEGAFIRI for patients with advanced or metastatic CRC in Japan seems to have the similar effect with that reported abroad and indicates prolonged PFS and MST in cases with CR or PR.

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