医学部 消化器内科学
Profile Information
- Affiliation
- Clinical Professor, School of Medicine Department of Gastroenterology and Hepatology, Fujita Health University
- Degree
- 博士(医学)
- J-GLOBAL ID
- 201501020246836172
- researchmap Member ID
- 7000012760
Research Areas
1Research History
2-
Jul, 2020 - Present
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2013
Papers
477-
Anticancer research, 46(3) 1609-1618, Mar, 2026BACKGROUND/AIM: Atezolizumab plus bevacizumab (Ate+Bev) is widely used as first-line therapy for unresectable hepatocellular carcinoma (HCC). However, a subset of patients experience early disease progression, often detected at the first radiologic assessment around 6 weeks. Evidence guiding second-line therapy in this subgroup is limited, and the clinical value of lenvatinib after early progressive disease (PD) remains unclear. PATIENTS AND METHODS: We retrospectively analyzed 36 patients with unresectable HCC who received lenvatinib after failure of first-line Ate+Bev. Patients were stratified by early PD, defined as radiologic progression at the scheduled 6-week assessment after starting Ate+Bev. Outcomes included antitumor response, progression-free survival (PFS), and overall survival (OS). RESULTS: Objective response rate (ORR) and disease control rate (DCR) assessed by RECIST 1.1 were comparable between patients with and without early PD (ORR: 28.6% vs. 13.8%; DCR: 85.7% vs. 86.2%; p=0.342). Median PFS was also similar between groups [5.2 months (95% confidence interval=1.9-NA) vs. 6.1 months (3.7-7.5); p=0.307]. In multivariate analyses adjusting for Child-Pugh class, Barcelona Clinic Liver Cancer (BCLC) stage, and reduced starting dose, early PD was not significantly associated with either PFS or OS, whereas Child-Pugh class A was independently associated with improved OS. Correlation between first- and second-line PFS was weak and non-significant (r=0.077, p=0.682). CONCLUSION: Lenvatinib demonstrated comparable antitumor activity and survival outcomes even in patients with early PD on first-line Ate+Bev, indicating that early radiologic progression does not necessarily signify refractoriness to subsequent systemic therapy. These findings support lenvatinib as a viable second-line option regardless of early Ate+Bev response, particularly in patients with preserved liver function. Larger prospective studies are needed to confirm these observations.
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International journal of clinical oncology, 30(7) 1398-1408, Jul, 2025BACKGROUND: Cancer gene panel testing (CGP) helps comprehensively analyze a large number of genes, extracting genetic information from the genome profile to aid treatment plans and drug therapy. Advances in drug therapy and surgical treatment for intrahepatic cholangiocarcinoma (ICC) have improved patient outcomes; however, it remains a typical intractable cancer with a poor prognosis. ICC is one of the key tumors for which effective treatment may be identified through CGP testing. This study aimed to identify ICC harboring actionable genetic variants using contrast-enhanced ultrasonography (CE-US). METHODS: We enrolled 26 ICC patients who underwent CE-US before chemotherapy or surgery. Three ultrasound specialists reviewed the images by consensus and assessed the imaging features, including vascularity. Pathological data were reviewed after diagnosis using CE-US. We retrospectively analyzed distinctive CE-US findings in patients with ICC with actionable genetic variants. RESULTS: Twelve ICC patients had actionable gene variants, including four FGFR2 fusions, one FGFR2 rearrangement, six IDH1 mutations, and one BRAF V600E mutation. Univariate analysis showed significant differences in bile duct invasion (p = 0.0217) and blood vessel penetration within the tumor (p = 0.0012). Multivariable logistic regression identified blood vessel penetration within the tumor (OR = 18.275; 95% CI: 1.331-250.925; p = 0.0297) as independently associated with actionable gene variants. CONCLUSION: Patients with ICC and blood vessel penetration on CE-US should be considered for CGP testing.
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Addiction biology, 30(6) e70052, Jun, 2025In Japan, the establishment of diagnostic criteria for acute-on-chronic liver failure (ACLF) in 2022 has increased the focus on alcoholic hepatitis. Most hospitals in Japan lack specialized treatment units or psychiatrists for managing alcohol use disorders, leaving hepatologists to handle various aspects of the disease-a challenging task. This study retrospectively investigated the outcomes of alcoholic hepatitis in a typical Japanese hospital setting, stratified by ACLF diagnosis and other features, with the aim of identifying areas for possible improvement. We conducted a retrospective analysis of 88 patients hospitalized with alcoholic hepatitis, reviewing records for the diagnosis of ACLF or related conditions, development of delirium tremens (DT), risk factors, and patient outcomes. Patients meeting the Japanese criteria for ACLF or related conditions had significantly worse survival outcomes. DT developed in 13 patients, with low platelet counts and elevated γ-glutamyl transpeptidase levels identified as risk factors. Prophylactic oral benzodiazepines were found safe and significantly associated with preventing DT. Onset of DT during hospitalization did not measurably impact survival prognosis, but DT patients showed a tendency to break contact with our hospital and critical events may have been missed. While under hepatologist care, patients typically maintained sobriety, but relapse into alcohol-related health problems frequently occurred after follow-up was discontinued. In Japan, hepatologists may be missing important events with alcoholic hepatitis after follow-up discontinuation, especially in patients with DT. Therefore, integrated and collaborative care, particularly a psychosocial approach providing behavioural support, may reduce risk of relapse and improve patient prognosis. TRIAL REGISTRATION: All study protocols were reviewed and approved by the ethics committee at Fujita Health University School of Medicine (approval no. HM23-213).
Misc.
120-
JOURNAL OF MEDICAL ULTRASONICS, Nov 22, 2023
Presentations
98-
AASLD The Liver Meeting 2013, Nov 1, 2013
Research Projects
2-
Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2015 - Mar, 2019
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Grants-in-Aid for Scientific Research, Japan Society for the Promotion of Science, Apr, 2012 - Mar, 2015
その他教育活動上特記すべき事項
6-
件名(英語)第23回医学教育ワークショップ終了年月日(英語)2008/05/17概要(英語)「CBT試験問題作成」に参加した。
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件名(英語)第25回医学教育ワークショップ終了年月日(英語)2008/09/06概要(英語)「卒業試験臨床長文問題ブラッシュアップ」に参加した。
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件名(英語)第27回医学教育ワークショップ終了年月日(英語)2009/04/12概要(英語)「小グループ学習の充実」に参加した。
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件名(英語)第30回医学教育ワークショップ終了年月日(英語)2009/08/29概要(英語)「計算問題 多肢選択問題 臨床長文問題ブラッシュアップ」に参加した。
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件名(英語)第33回医学教育ワークショップ終了年月日(英語)2010/05/15概要(英語)「CBT試験問題作成」に参加した。
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件名(英語)第35回医学教育ワークショップ終了年月日(英語)2010/08/28概要(英語)「多肢選択問題 臨床長文問題ブラッシュアップ」に参加した。