Journal
BRITISH JOURNAL OF CANCER
Volume 106, Issue 1, Pages 53-60Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/bjc.2011.469
Keywords
unresectable colorectal liver metastasis; neoadjuvant chemotherapy; adenosine triphosphate-based chemotherapy response assay; treatment response; liver resection
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Funding
- Ministry for Health, Welfare & Family Affairs, Republic of Korea [A084877]
- Korea Health Promotion Institute [A084877] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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BACKGROUND: This study aims to evaluate the effectiveness of adenosine triphosphate-based chemotherapy response assay (ATP-CRA)-guided neoadjuvant chemotherapy for increasing resectability in patients with unresectable colorectal liver metastasis. PATIENTS AND METHODS: Patients were randomised into two groups: Group A was treated by conventional chemotherapy regimen and Group B was treated by chemotherapy regimen according to the ATP-CRA. Three chemotherapeutic agents (5-fluorouracil, oxaliplatin and irinotecan) were tested by ATP-CRA and more sensitive agents were selected. Either FOLFOX or FOLFIRI was administered. Between Group A and B, treatment response and resectability were compared. RESULTS: Between November 2008 and October 2010, a total 63 patients were randomised to Group A (N = 32) or Group B (N = 31). FOLFOX was more preferred in Group A than in Group B (26 out of 32 (81.3%) vs 20 out of 31 (64.5%)). Group B showed better treatment response than Group A (48.4% vs 21.9%, P = 0.027). The resectability of hepatic lesion was higher in Group B (35.5% vs 12.5%, P = 0.032). Mean duration from chemotherapy onset to the time of liver resection was 11 cycles (range 4-12) in Group A and 8 cycles (range 8-16) in Group B. CONCLUSION: This study showed that tailored-chemotherapy based on ATP-CRA could improve the treatment response and resectability in initially unresectable colorectal liver metastasis. British Journal of Cancer (2012) 106, 53-60. doi:10.1038/bjc.2011.469 www.bjcancer.com Published online 8 November 2011 (C) 2012 Cancer Research UK
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