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Examination of research design for appropriate effect estimation

Research Project

Project/Area Number 16K09033
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Epidemiology and preventive medicine
Research InstitutionKyoto University

Principal Investigator

Ogawa Yusuke  京都大学, 医学研究科, 特定講師 (50535573)

Co-Investigator(Kenkyū-buntansha) 古川 壽亮  京都大学, 医学研究科, 教授 (90275123)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Keywords臨床疫学 / ランダム化比較試験 / 研究デザイン / 抗うつ剤 / うつ病 / メタ疫学研究
Outline of Final Research Achievements

We included randomized-controlled trials (RCTs) that 18 antidepressants compared with placebo for the treatment of major depressive disorder in adults. We calculated the ratio of odds ratios (RORs) of antideepressant response over placebo in two-armed versus three or more-armed RCTs for each drug, and then synthesized RORs across all the included drugs. The difference of effect size between two-armed and three or more-armed RCTs were found to be much smaller than those reported in the previous studies and were not significant.

Academic Significance and Societal Importance of the Research Achievements

過去の研究では2群比較試験では3群比較試験に比べ、効果サイズが大きくなることが指摘されていた。しかし、先行研究の問題点を改善した上で実施した今回の研究によりこのことは否定された。本研究の結果は、今後抗うつ剤のランダム化比較試験を計画、解釈する際に重要な情報となると考えられる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (21 results)

All 2018 2016 Other

All Int'l Joint Research (16 results) Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 2 results)

  • [Int'l Joint Research] University of Oxford/University of Bristol(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Stanford University/Oregon Health & Science University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Paris Descartes University(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Technische Universitat Munchen(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Bern(スイス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] University of Oxford/University of Bristol(英国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Technische Universitat Munchen(ドイツ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Bern(スイス)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Ioannia(ギリシャ)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Paris Descartes University/Sorbonne Paris Cite Research Center(フランス)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Oxford(英国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Technische Universitat Munchen(ドイツ)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of Bern(スイス)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of Ioannina(ギリシャ)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Comparative efficacy and acceptability of first- and second-generation antidepressants in the acute treatment of major depressive disorder: A network meta-analysis.2018

    • Author(s)
      Cipriani A, Furukawa TA, Salanti G, Chaimani A, Atkinson LZ, Ogawa Y, Leucht S, Ruhe HG, Turner EH, Higgins JP, Egger M, Takeshima N, Hayasaka Y, Imai H, Shinohara K, Tajika A, Ioannidis JP & Geddes JR
    • Journal Title

      Lancet

      Volume: epub Issue: 10128 Pages: 1-8

    • DOI

      10.1016/s0140-6736(17)32802-7

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of placebo arms on outcomes in antidepressant trials: systematic review and meta-regression analysis2018

    • Author(s)
      Salanti Georgia、Chaimani Anna、Furukawa Toshi A、Higgins Julian P T、Ogawa Yusuke、Cipriani Andrea、Egger Matthias
    • Journal Title

      International Journal of Epidemiology

      Volume: 47 Issue: 5 Pages: 1454-1464

    • DOI

      10.1093/ije/dyy076

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Efficacy of antidepressants over placebo is similar in two-armed versus three-armed or more-armed randomized placebo-controlled trials2018

    • Author(s)
      Ogawa Yusuke, Furukawa Toshi A., Takeshima Nozomi, Hayasaka Yu, Atkinson Lauren Z., Tanaka Shiro, Cipriani Andrea, Salanti Georgia
    • Journal Title

      International Clinical Psychopharmacology

      Volume: 33 Issue: 2 Pages: 66-72

    • DOI

      10.1097/yic.0000000000000201

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Is placebo response in antidepressant trials rising or not? A reanalysis of datasets to conclude this long-lasting controversy2018

    • Author(s)
      Furukawa Toshi A, Cipriani Andrea, Leucht Stefan, Atkinson Lauren Z, Ogawa Yusuke, Takeshima Nozomi, Hayasaka Yu, Chaimani Anna, Salanti Georgia
    • Journal Title

      Evidence Based Mental Health

      Volume: 21 Issue: 1 Pages: 1-3

    • DOI

      10.1136/eb-2017-102827

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Placebo response rates in antidepressant trials: a systematic review of published and unpublished double-blind randomised controlled studies.2016

    • Author(s)
      Furukawa TA, Cipriani A, Atkinson LZ, Leucht S, Ogawa Y, Takeshima N, Hayasaka Y, Chaimani A, Salanti G.
    • Journal Title

      Lancet Psychiatry

      Volume: 3 Issue: 11 Pages: 1059-1066

    • DOI

      10.1016/s2215-0366(16)30307-8

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2016-04-21   Modified: 2022-02-22  

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