期刊
LIVER CANCER
卷 9, 期 1, 页码 84-92出版社
KARGER
DOI: 10.1159/000503577
关键词
Hepatocellular carcinoma; Lenvatinib; Malignant potential; Poorly differentiated; Positron emission tomography
资金
- Okinaka Memorial Institute for Medical Research
- Japanese Ministry of Health, Labour and Welfare
- Japan Agency for Medical Research and Development
Background and Aims: This study aimed to identify the utility of F-18-fluorodeoxyglucose positron emission tomography/computed tomography (F-18-FDG-PET/CT) as a predictor of the response of hepatocellular carcinoma (HCC) to lenvatinib. Methods: We evaluated 28 consecutive patients with HCC diagnosed by dynamic CT or magnetic resonance imaging combined with F-18-FDG-PET/CT. The tumor-to-normal liver standardized uptake value ratio (TLR) of the target tumor was measured before treatment using F-18-FDG-PET/CT, with a TLR >= 2 classified as a high potential for malignant HCC. The treatment response was evaluated 2 weeks after the initiation of lenvatinib using modified Response Evaluation Criteria in Solid Tumors. Results: Of the 28 patients, 12 (43%) presented with a TLR >= 2. Evaluation of the treatment response at 2 weeks in these 12 patients revealed that 2 (17%) exhibited a complete response, 8 (67%) a partial response, 2 (17%) stable disease, and none with progressive disease. Therefore, 10 of the 12 patients (83%) experienced an objective response to lenvatinib. On the other hand, 7 of the 16 patients with a TLR <2 (44%) experienced an objective response. Thus, the objective response rate was higher in patients with a TLR >= 2 than in those with a TLR <2. Multivariate logistic regression analysis revealed that a TLR >= 2 (odds ratio 10.53; p = 0.028) is a useful predictor of an early objective response at 2 weeks. Conclusion: Patients with unresectable HCC showed a good early treatment response to lenvatinib. High TLR (>= 2) may be a useful predictor of an extremely rapid treatment response.
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