• Kohei Shigeta, Hirotoshi Hasegawa, Koji Okabayashi, Masashi Tsuruta, Yoshiyuki Ishii, Takashi Endo, Hiroki Ochiai, Takayuki Kondo, and Yuko Kitagawa.
• Department of Surgery, Keio University School of Medicine, 35 Shinano-Machi, Shinjuku-Ku, Tokyo, 160-8582, Japan.
• Int. J. Cancer. 2016 Aug 15; 139 (4): 946-54.

AbstractIrinotecan-based chemotherapy with bevacizumab is one of the first-line standard therapies for metastatic colorectal cancer (mCRC). TEGAFIRI (UFT/LV + irinotecan) is an irinotecan-based chemotherapy regimen. Currently, few clinical data regarding TEGAFIRI are available. This study evaluated the efficacy and safety of TEGAFIRI in Japanese patients with mCRC. This is a multicenter, randomized, phase II study. The major inclusion criteria were previously untreated patients with mCRC (age: 20-75 years, Eastern Cooperative Oncology Group performance status: 0-1). Eligible patients were randomly assigned (1:1) to receive either FOLFIRI ± bevacizumab or TEGAFIRI ± bevacizumab. The primary endpoint was progression-free survival (PFS). The secondary endpoints were response rate, overall survival, dose intensity and toxicity. From November 2007 to October 2011, 36 and 35 patients assigned to the FOLFIRI and TEGAFIRI groups were included in the primary analysis. No significant difference in PFS was observed between the groups {median PFS: TEGAFIRI 9.9 months [95% confidence interval (CI), 6.5-14.7], FOLFIRI 10.6 months [95% CI, 7.7-16.5]; Hazard ratio, 0.98, 95% CI, 0.57-1.66, p = 0.930}. The response rates in the FOLFIRI and TEGAFIRI groups were 56% and 66%, respectively. Relative dose intensity was similar between the groups. The most common Grade 3/4 adverse event was diarrhea (26%) in TEGAFIRI group and neutropenia (39%) in the FOLFIRI group. The results of the present study indicate that TEGAFIRI ± bevacizumab is an effective and tolerable first-line treatment regimen for mCRC. © 2016 UICC.

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