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2016 Fiscal Year Annual Research Report

Statistical frameworks for efficient decision-making in complex clinical trial designs

Research Project

Project/Area Number 26330038
Research InstitutionOsaka University

Principal Investigator

濱崎 俊光  大阪大学, 国際医工情報センター, 招へい教授 (40379243)

Co-Investigator(Kenkyū-buntansha) 杉本 知之  鹿児島大学, 理工学研究科, 教授 (70324829)
寒水 孝司  東京理科大学, 工学部, 准教授 (80408723)
高橋 佳苗  国立研究開発法人国立循環器病研究センター, 研究開発基盤センター, 研究員(任期付) (80726761) [Withdrawn]
Project Period (FY) 2014-04-01 – 2017-03-31
Keywords統計科学 / 臨床試験 / 適応的デザイン / 生存時間データ / 標本サイズ再計算
Outline of Annual Research Achievements

複数仮説を伴う臨床試験のデザインと解析として,本研究では,循環器領域やがん領域の臨床試験で多くみられる,複数の事象時間指標が主要評価項目である場合を集中的に検討した.

1. 先行の研究では事象時間指標のすべてが致死的な事象でないとして検討を行ったが, 例えば循環器領域では死亡までの時間と入院までの時間, がん領域では死亡までの時間と再発までの時間といったように, 致死的な事象が他方の事象を打ち切る関係にあり, それらの事象が強く関連をもつ準競合リスクである場合が一般的である. そこで, 本研究では,このような準競合リスクの問題を扱うための方法の拡張を検討した.複数仮説を考慮する場合の検出力,標本サイズおよび第1種の過誤確率が相関とどのように関連し,挙動するかを明らかにした.実際場面においてこれらの方法を利用するにあたり,評価指標間の相関は未知であるか,推定のためのデータが利用可能であっても限定的で,それを利用するにしても推定値に伴う変動をどのようにデザインに考慮するかが問題である. 本研究では評価項目間の相関に絡む不確実性を考慮する方法を検討し,試験デザインにおいてどのように相関を考慮すればよいかを検討した.

2. 1で得られた成果を群逐次・適応的デザインへ拡張した.ここでは試験途中での, 評価指標の変更と選択, 試験仮説の変更, 標本サイズの再設定などを,意思決定に伴う不確実性の影響を最小限にとどめ試験途中でも合理的な選択ができるような統計的方法を頻度流接近法の枠組みで検討した. とくに試験の無効中止と有効中止を組み合わせた方法を検討した.提案方法について利用可能な解析プログラム(R/Fortran),より利用が簡便なソフトウェアとして提示し, 広く実地で使用できるように配慮した.

  • Research Products

    (21 results)

All 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Acknowledgement Compliant: 4 results) Presentation (12 results) (of which Int'l Joint Research: 10 results,  Invited: 5 results) Book (1 results)

  • [Int'l Joint Research] Harvard University(米国)

    • Country Name
      U.S.A.
    • Counterpart Institution
      Harvard University
  • [Int'l Joint Research] Medical University of Vienna(Austria)

    • Country Name
      Austria
    • Counterpart Institution
      Medical University of Vienna
  • [Int'l Joint Research] National Health Research Insisiute(Taiwan)

    • Country Name
      その他の国・地域
    • Counterpart Institution
      National Health Research Insisiute
  • [Int'l Joint Research]

    • # of Other Countries
      3
  • [Journal Article] Sizing clinical trials when comparing bivariate time-to-event outcomes2017

    • Author(s)
      Sugimoto T, Hamasaki T, Evans SR, Sozu T
    • Journal Title

      Statistics in Medicine

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1002/sim.7225

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Group-sequential three-arm noninferiority clinical trial designs2017

    • Author(s)
      Ochiai T, Hamasaki T, Evans SR, Asakura K, Ohno Y
    • Journal Title

      Journal of Biopharmaceutical Statistics

      Volume: 27 Pages: 1-24

    • DOI

      10.1080/10543406.2016.1148710

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Interim evaluation of efficacy or futility in group-sequential trials with multiple co-primary endpoints2017

    • Author(s)
      Asakura K, Hamasaki T, Evans SR.
    • Journal Title

      Biometrical Journal

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1002/bimj.200800143

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Reducing unnecessary measurements in clinical trials with multiple primary endpoints2016

    • Author(s)
      Sozu T, Sugimoto T, Hamasaki T
    • Journal Title

      Journal of Biopharmaceutical Statistics

      Volume: 26 Pages: 631-643

    • DOI

      10.1080/10543406.2015.1052497

    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Statistical monitoring of clinical trials with semi-competing risks outcomes2017

    • Author(s)
      Hamasaki T, Evans SR, Sugimoto T, Asakura K
    • Organizer
      ENAR 2017 Spring Meeting
    • Place of Presentation
      Washington DC, USA
    • Year and Date
      2017-03-12 – 2017-03-15
    • Int'l Joint Research
  • [Presentation] Interim evaluation of efficacy or futility in group-sequential clinical trials with multiple co-primary endpoints2016

    • Author(s)
      Hamasaki T
    • Organizer
      The 10th International Chinese Statistical Association International Conference
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2016-12-19 – 2016-12-22
    • Int'l Joint Research / Invited
  • [Presentation] Improving the Quality of Clinical Trials in Network for Clinical Stroke Trials2016

    • Author(s)
      Hamasaki T
    • Organizer
      New Trends in Clinical Trials
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2016-11-23
    • Invited
  • [Presentation] Statistical monitoring of clinical trials with two event-time outcomes2016

    • Author(s)
      Hamasaki T
    • Organizer
      National Central University Graduate Institute of Statistics Seminor
    • Place of Presentation
      Taipei, Taiwan
    • Year and Date
      2016-11-22
    • Invited
  • [Presentation] Early evaluation of efficacy in group-sequential clinical trials with two time-to-event outcome2016

    • Author(s)
      Hamasaki T, Sugimoto T, Asakura K, Evans SR
    • Organizer
      The 2016 ASA Biopharmaceutical Section Regulatory-Industry Statistics Workshop
    • Place of Presentation
      Washington DC, USA
    • Year and Date
      2016-09-28 – 2016-09-30
    • Int'l Joint Research
  • [Presentation] Improved group sequential clinical trial designs when comparing two interventions using two time-event outcomes2016

    • Author(s)
      Hamasaki T
    • Organizer
      The 2016 International Indian Statistical Association Conference on Statistics
    • Place of Presentation
      Corvaliis, Oregon, USA
    • Year and Date
      2016-08-18 – 2016-08-21
    • Int'l Joint Research / Invited
  • [Presentation] Group-sequential clinical trials for comparing two interventions using two time-to-event outcomes2016

    • Author(s)
      Hamasaki T, Sugimoto T, Asakura K, Evans SR
    • Organizer
      Joint Statistical Meetings 2016
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2016-07-30 – 2016-08-04
    • Int'l Joint Research
  • [Presentation] Improved group sequential clinical trial designs with multiple co-primary endpoints2016

    • Author(s)
      Asakura K, Hamasaki T, Koenig F, Posch M
    • Organizer
      Joint Statistical Meetings 2016
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2016-07-30 – 2016-08-04
    • Int'l Joint Research
  • [Presentation] Interim evaluation of efficacy or futility in group-sequential trials with multiple co-primary endpoints2016

    • Author(s)
      Hamasaki T
    • Organizer
      The 25th South Taiwan Statistics Conference
    • Place of Presentation
      Kaohsiung, Taiwan,
    • Year and Date
      2016-06-24 – 2016-06-25
    • Int'l Joint Research / Invited
  • [Presentation] Group-sequential three-arm noninferiority clinical trial designs2016

    • Author(s)
      Hamasaki T, Ochiai T, Evans SR, Asakura K, Fukuda M, Yamamoto H
    • Organizer
      The 37th Annual Meeting of the Society for Clinical Trials
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2016-05-15 – 2016-05-18
    • Int'l Joint Research
  • [Presentation] Interim monitoring of clinical trials with co-primary endpoints using predicted intervals2016

    • Author(s)
      21.Asakura K, Hamasaki T, Evans SR, Hsiao CF, Fukuda M, Yamamoto H
    • Organizer
      The 37th Annual Meeting of the Society for Clinical Trials
    • Place of Presentation
      Montreal, Canada
    • Year and Date
      2016-05-15 – 2016-05-18
    • Int'l Joint Research
  • [Presentation] Sample size determination in clinical trials with two time-to-event outcomes2016

    • Author(s)
      Hamasaki T, Sugimoto T, Evans SR, Sozu T.
    • Organizer
      DIA/FDA Statistics 2016 Forum
    • Place of Presentation
      Bethesda, MD, USA
    • Year and Date
      2016-04-25 – 2016-04-27
    • Int'l Joint Research
  • [Book] Group-Sequential Clinical Trials with Multiple Co-Objectives2016

    • Author(s)
      Hamasaki T, Asakura K, Ochiai T, Evans SR
    • Total Pages
      113
    • Publisher
      Springer

URL: 

Published: 2018-01-16   Modified: 2022-02-16  

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