Analysis of clinical features and pathology of severe fever with thrombocytopenia syndrome in Japan
Project/Area Number |
19K08931
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 54030:Infectious disease medicine-related
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Research Institution | Ehime University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
安川 正貴 愛媛県立医療技術大学, 保健科学部, 教授 (60127917)
|
Project Period (FY) |
2019-04-01 – 2022-03-31
|
Project Status |
Completed (Fiscal Year 2021)
|
Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | SFTS / 異型リンパ球 / ファビピラビル |
Outline of Research at the Start |
重症熱性血小板減少症候群(Severe fever with thrombocytopenia syndrome; SFTS)は2011年に中国で初めて報告された新興感染症である。我が国でも2013年に初めて患者が確認され、致死率が10~30%と極めて高い。有効な治療法が確立されておらず、病態解明と治療法の確立は喫緊の課題である。本研究の目的は臨床像の病態解明により予後改善を目指すことである。
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Outline of Final Research Achievements |
During the study period, eight patients with severe febrile thrombocytopenia syndrome (SFTS) were delivered in Ehime prefecture, of which 3 (2 severe and 1 mild) were admitted to our hospital. Atypical lymphocytes were found in peripheral blood, and flow cytometric analysis showed that B cells were significant in severely ill patients, while T cells were significant in mildly ill patients. From April to December 2016 and from September 2017 to May 2018, favipiravir was administered as a new antiviral drug for SFTS for 7 to 14 days in a doctor-led clinical trial mainly at medical institutions in western Japan. The analysis was performed in our hospital. Twenty-three were enrolled in this study, 19 survived and 4 died (mortality rate 17.4%). Only previously reported adverse events were found, and no new adverse events were observed.
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Academic Significance and Societal Importance of the Research Achievements |
SFTS患者の末梢血を用いた解析からは、異型リンパ球がT細胞有意(通常のウイルス感染症と同様の免疫反応)であれば軽症であり、B細胞有意であれば重症の病態である可能性が示唆された。これらの所見は今後の診断および治療の発展に寄与する知見と思われる。医師主導型臨床試験で得られたファビピラビルの有効性と安全性についての解析は、現在、抗ウイルス薬が存在しないSFTSにおいて、治療薬として有効性が期待される結果であり、実臨床で使用できるポテンシャルが高い薬剤であることが示唆された。
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Report
(4 results)
Research Products
(21 results)
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[Journal Article] A multicenter non-randomized, uncontrolled single arm trial for evaluation of the efficacy and the safety of the treatment with favipiravir for patients with severe fever with thrombocytopenia syndrome2021
Author(s)
Suemori K, Saijo M, Yamanaka A, Himeji D, Kawamura M, Haku T, Hidaka M, Kamikokuryo C, Kakihana Y, Azuma T, Takenaka K, Takahashi T, Furumoto A, Ishimaru T, Ishida M, Kaneko M, Kadowaki N, Ikeda K, Sakabe S, Taniguchi T, Ohge H, Kurosu T, Yoshikawa T, Shimojima M, Yasukawa M.
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Journal Title
PLoS Negl Trop Dis.
Volume: 15
Issue: 2
Pages: e0009103-e0009103
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] The association between ear involvement and clinical features and prognosis in ANCA-associated vasculitis2021
Author(s)
Hosokawa Y, Okada M, Suemori K, Hamaguchi N, Miyoshi KI, Takagi T, Teraoka M, Yamada H, Ishizaki J, Matsumoto T, Hato N.
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Journal Title
Auris Nasus Larynx
Volume: 5
Issue: 5
Pages: 885-889
DOI
Related Report
Peer Reviewed / Open Access
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[Journal Article] Usefulness of tissue inhibitor of metalloproteinase 1 as a predictor of sustained remission in patients with antineutrophil cytoplasmic antibody-associated vasculitis2021
Author(s)
Ishizaki J, Takemori A, Horie K, Hiraoka D, Suemori K, Matsumoto T, Sada KE, Amano K, Harigai M, Arimura Y, Makino H, Takenaka K, Takemori N, Hasegawa H, and Hirahashi J as a collaborator..
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Journal Title
Arthritis Research & Therapy
Volume: 23
Issue: 1
Pages: 91-91
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Association between daptomycin susceptibility and teicoplanin resistance in Staphylococcus epidermidis.2019
Author(s)
Watanabe S, Kawakami Y, Kimura H, Murakami S, Miyamoto H, Takatori S, Suemori K, Tanaka M, Tanaka A, Tanaka K, Tauchi H, Maki J, Araki H, Yamaguchi T.
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Journal Title
Scientific Reports
Volume: 9
Issue: 1
Pages: 18533-18533
DOI
Related Report
Peer Reviewed / Open Access
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[Presentation] イスラム教徒の妊婦を多職種で支援した一例2021
Author(s)
若松 綾, 本園 薫, 越智 俊元, 木原 久文, 末盛 浩一郎, 井門 敬子, 小野 恵子, 中尾 綾, 山岡 多恵, 竹中 克斗, 高田 清式
Organizer
第35回日本エイズ学会学術集会・総会
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[Presentation] 介護ケアセンター職員向けに作成した抗HIV薬に関する冊子の評価(第2報)2021
Author(s)
中川 進平, 井門 敬子, 乗松 真大, 木村 博史, 川上 幸伸, 末盛 浩一郎, 中尾 綾, 若松 綾, 高田 清式, 飛鷹 範明, 田中 守
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[Presentation] HIV在宅介護研修における薬剤師の活動2021
Author(s)
井門 敬子, 乗松 真大, 木村 博史, 中川 進平, 川上 幸伸, 若松 綾, 本園 薫, 中尾 綾, 末盛 浩一郎, 飛鷹 範明, 田中 守, 高田 清式
Organizer
第35回日本エイズ学会学術集会・総会
Related Report
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