Kota Tsuruya

Dr. Kota Tsuruya

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Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 October 2020 in Clinical and Experimental Gastroenterology
Verified
Journal Article
Open access
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KOKatsuaki Ogushi
Katsuaki Ogushi
MCMakoto Chuma
Makoto Chuma
HUHaruki Uojima
Haruki Uojima
HHHisashi Hidaka
Hisashi Hidaka
KNKazushi Numata
Kazushi Numata
SMShin Maeda
Shin Maeda
Purpose: To assess the safety, efficacy and prognostic impact of clinical factors related to lenvatinib treatment in Child-Pugh class A (CP-A) and class B (CP-B) patients with unresectable hepatocellular carcinoma (u-HCC). Methods: Patients with u-HCC who were treated with lenvatinib at multiple centers in Japan were retrospectively analyzed for treatment outcomes according to their respective CP status. Radiological objective response (OR) was assessed using modified response evaluation criteria in solid tumors (mRECIST) guidelines. Results: Baseline demographic parameters were comparable between 126 (69.6%) patients with CP-A disease and 55 patients (30.4%) with CP-B disease. Frequency of lenvatinib-related adverse events, including decreased appetite (P=0.034), diarrhea (P=0.040), elevated serum bilirubin (P=0.016) and vomiting (P=0.009), were higher in CP-B than in CP-A patients. Relative dose intensity (RDI) was significantly higher in CP-A (0.69) than CP-B patients (0.50, P < 0.001). Furthermore, OR rate (44.0%) was markedly higher in CP-A5 patients as compared to CP-A6 (25.5%), CP-B7 (22.2%), and CP-B8 patients (5.3%), respectively (P=0.002). In multivariable analysis, performance status (0 vs 1, 2, P=0.026), CP class (A vs B, P=0.045) and RDI (≥ 0.7 vs < 0.7, P=0.034) were identified as factors associated with response to lenvatinib treatment. Overall survival (OS) at 12 months was significantly different between CP-A (66.3%) and CP-B patients (30.0%, P=0.002), and between CP 5– 7 (59.2%) and CP 8 patients (34.8%, P=0.003). In multivariable analysis, CP class (A vs B, P=0.007) and Barcelona clinic liver cancer (BCLC) stage (B vs C, P=0.002) were associated with OS following lenvatinib treatment. Conclusion: Lenvatinib treatment offers significant benefits in patients with good liver function in real-world practice. The various characteristics identified in this study might be helpful as clinical predictors of response to lenvatinib and survival in clinical practice. Further studies are required to address eligibility for lenvatinib treatment in CP 7 patients.

13 November 2020 in PLOS ONE
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Journal Article
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SHShunji Hirose
Shunji Hirose
KMKoshi Matsumoto
Koshi Matsumoto
MTMasayuki Tatemichi
Masayuki Tatemichi
KTKota Tsuruya
Kota Tsuruya
KAKazuya Anzai
Kazuya Anzai
TKTatehiro Kagawa
Tatehiro Kagawa
Background: Many studies have investigated the prognosis of nonalcoholic fatty liver disease (NAFLD); however, most studies had a relatively short follow-up. To elucidate the long-term outcome of NAFLD, we conducted a retrospective cohort study of patients with biopsy-proven NAFLD. Methods: We re-evaluated 6080 patients who underwent liver biopsy from 1975 to 2012 and identified NAFLD patients without other etiologies. With follow-up these patients, we evaluated the outcome-associated factors. Results: A total of 223 patients were enrolled, 167 (74.9%) was non-alcoholic steatohepatitis (NASH). The median follow-up was 19.5 (0.5–41.0) years and 4248.3 person-years. The risk of type 2 diabetes mellitus (T2DM) and hypertension was 11.7 (95% confidence interval [CI] 8.70–15.6) and 7.99 (95% CI 6.09–10.5) times higher, respectively, in NAFLD patients than in the general population. Twenty-three patients died, 22 of whom had NASH. Major causes of death were extrahepatic malignancy and cardiovascular disease (21.7%) followed by liver-related mortality (13.0%). All-cause mortality was significantly higher in NASH patients than in nonalcoholic fatty liver patients (P = 0.041). In multivariate analysis, older age (hazard ratio [HR] 1.09 [95% CI 1.05–1.14], P<0.001) and T2DM (HR 2.87 [95% CI 1.12–7.04], P = 0.021) were significantly associated with all-cause mortality. The factors significantly associated with liver-related events were older age, T2DM, milder hepatic steatosis, and advanced liver fibrosis. Body mass index wasn’t associated with either mortality or liver-related events. Conclusions: T2DM was highly prevalent in NAFLD patients and was significantly associated with both all-cause mortality and liver-related events. The lean patients’ prognosis wasn’t necessarily better than that of overweight patients.

10 November 2021 in Hepatology Research
Verified
Journal Article
Closed access
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MCMakoto Chuma
Makoto Chuma
HUHaruki Uojima
Haruki Uojima
NHNobuhiro Hattori
Nobuhiro Hattori
YAYoshitaka Arase
Yoshitaka Arase
TFTaito Fukushima
Taito Fukushima
SMShin Maeda
Shin Maeda

16 April 2019 in Clinical Drug Investigation
Verified
Journal Article
Open access
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YAYoshitaka Arase
Yoshitaka Arase
KSKoichi Shiraishi
Koichi Shiraishi
KAKazuya Anzai
Kazuya Anzai
HSHirohiko Sato
Hirohiko Sato
ETErika Teramura
Erika Teramura
Tatehiro KagawaTatehiro Kagawa
Tatehiro Kagawa
Background and Objective Sodium glucose co-transporter 2 inhibitors increase urinary glucose excretion and reduce visceral adiposity and body weight, but their efficacy on patients with nonalcoholic fatty liver disease has not been sufficiently investigated. The aim of this study was to assess the effect of sodium glucose co-transporter 2 inhibitors on liver fat mass and body composition in patients with nonalcoholic fatty liver disease and type 2 diabetes mellitus. Methods We retrospectively analyzed 17 patients with nonalcoholic fatty liver disease and type 2 diabetes who received sodium glucose co-transporter 2 inhibitors between November 2016 and July 2017. Changes in liver fat, subcutaneous and visceral fat, body composition, and liver function-related parameters were assessed after 24 weeks of sodium glucose co-transporter 2 inhibitor treatment and compared to baseline values. Results Ten patients received dapagliflozin at 5 mg/day and seven patients received canagliflozin at 100 mg/day for 24 weeks. All patients completed the study without any serious adverse effects and achieved body weight loss and improved glycated hemoglobin levels. Liver fat mass evaluated by proton magnetic resonance spectroscopy was significantly reduced (19.1% vs. 9.2%, p < 0.01), and so were both subcutaneous and visceral fat mass. The body fat/body weight ratio decreased, whereas the skeletal muscle mass/body weight ratio increased. Liver function (aspartate aminotransferase, alanine aminotransferase, and γ-glutamyl transpeptidase) improved significantly. Conclusions Sodium glucose co-transporter 2 inhibitor treatment not only improved glycemic control but also reduced liver fat mass in patients with nonalcoholic fatty liver disease and type 2 diabetes. Body weight loss was primarily attributable to a reduction in fat mass, especially visceral fat. Thus, sodium glucose co-transporter 2 inhibitors could potentially serve as a therapeutic agent for patients with nonalcoholic fatty liver disease and type 2 diabetes.

22 October 2020 in Cancers
Verified
Journal Article
Open access
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Masako ShomuraMasako Shomura
Masako Shomura
HOHaruka Okabe
Haruka Okabe
ESEmi Sato
Emi Sato
KFKota Fukai
Kota Fukai
KSKoichi Shiraishi
Koichi Shiraishi
Tatehiro KagawaTatehiro Kagawa
Tatehiro Kagawa
Patients with advanced hepatocellular carcinoma (HCC) undergoing molecular targeted therapy often experience non-negligible adverse events (AEs). Paradoxically, certain AEs are reportedly associated with a good prognosis. We aimed to identify factors predictive of treatment duration and overall survival (OS) in patients with HCC undergoing lenvatinib therapy. Forty-six consecutive patients with advanced HCC who received lenvatinib therapy from April 2018 to November 2019 were prospectively followed until November 2019. Treatment efficacy was assessed according to the modified Response Evaluation Criteria in Solid Tumors for 2–3 months after therapy initiation. The disease control rate (DCR) was defined as the percentage of patients with a complete response, partial response, or stable disease. The DCR was 65.2%, with a median survival of 10.2 months. Grade 2/3 hypoalbuminemia resulted in shorter treatment duration. Factors predictive of longer OS were a Child-Pugh score of 5 at baseline and the occurrence of Grade 2/3 hypothyroidism. Conversely, Grade 2/3 hypoalbuminemia was associated with a poorer prognosis. An AE of Grade 2/3 hypothyroidism was associated with a better prognosis in patients receiving lenvatinib treatment for advanced HCC. Continuing anticancer therapy with appropriate thyroid hormone replacement may contribute to longer OS.

20 April 2024 in Hepatology Research
Verified
Journal Article
Closed access
ATAtsushi Tanaka
Atsushi Tanaka
KTKeiji Tsuji
Keiji Tsuji
YKYasuyuki Komiyama
Yasuyuki Komiyama
KTKota Tsuruya
Kota Tsuruya
KKKeisuke Kakisaka
Keisuke Kakisaka
Tatehiro KagawaTatehiro Kagawa
Tatehiro Kagawa