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Statistical approaches for decision-making and assessing risks considering uncertainty in clinical trials

Research Project

Project/Area Number 15K15957
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Statistical science
Research InstitutionNational Cardiovascular Center Research Institute

Principal Investigator

Asakura Koko  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, 特任研究員 (70738690)

Research Collaborator HAMASAKI Toshimitsu  
EVANS Scott R  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords臨床試験 / 多重性 / 中間解析 / 予測 / 群逐次デザイン / 適応的デザイン / 多重エンドポイント / 標本サイズ / 早期中止 / モニタリング / エンリッチメント
Outline of Final Research Achievements

Many recent clinical trials consider multiple objectives in one trial. Such trials offer an attractive design feature as they capture a more complete characterization of the effect of an intervention. On the other hand, the design, conducting and analysis of such trials would be more complex and larger sample size is usually required. In this research we propose use of some practical approaches to increase efficiency and make complex scenarios more accessible, understandable and usable, with assessing or visualizing the benefit/risk, at interim, with continuation of the trial.

Academic Significance and Societal Importance of the Research Achievements

本研究でとりあげる,試験途中でデザインを変更できる臨床試験についての議論では主に変更に伴うベネフィットに注意が払われ,また多くの方法論が個々に検討されており,モニタリングにおけるリスクの評価といった広い視点からの開発・整備は不十分である.また日本国内でそのような臨床試験が国内で即時に実施可能な状態とはまだ言い難い.
本研究により,試験の各段階で治療効果を適切に評価し合理的な意思決定を行うことで,治療効果の高い新規治療を早く確実に社会へ提供し,逆に治療効果の期待できない,または安全性に問題のある治療の開発を早期に中止し,患者がそのような治療に曝露するリスクを最小限に抑えることができる.

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (36 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (1 results) Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Acknowledgement Compliant: 2 results) Presentation (29 results) (of which Int'l Joint Research: 28 results,  Invited: 4 results) Book (2 results)

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

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Design, data monitoring and analysis of clinical trials with co-primary endpoints: A review2018

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

      Journal of Biopharmaceutical Statistics

      Volume: 28 Issue: 1 Pages: 28-51

    • DOI

      10.1080/10543406.2017.1378668

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [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: 59 Issue: 4 Pages: 703-731

    • DOI

      10.1002/bimj.201600026

    • Related Report
      2017 Research-status Report 2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Group-sequential three arm noninferiority clinical trials designs2016

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

      Journal of Biopharmaceutical Statistics

      Volume: 99 Issue: 1 Pages: 99-99

    • DOI

      10.1080/10543406.2016.1148710

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Sample size considerations in clinical trials when comparing two interventions using multiple co-primary binary relative risk contrasts2015

    • Author(s)
      Ando Y, Hamasaki T, Evans S, Asakura K, Sugimoto T, Sozu T, Ohno, Y
    • Journal Title

      Statistics in Biopharmaceutical Research

      Volume: 7 Issue: 2 Pages: 81-94

    • DOI

      10.1080/19466315.2015.1006373

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Group-sequential strategies in clinical trials with bivariate time-to event outcomes2019

    • Author(s)
      Hamasaki T, Evans SR, Halabi S, Sugimito T, Asakura K
    • Organizer
      Eastern North American Region Spring Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Interim monitoring for futility in clinical trials with co-primary endpoints2018

    • Author(s)
      Asakura K, Hamasaki T, Evans SR
    • Organizer
      2018 ASA Biopharmaceutical Section Regulatory-Industry Statistics Workshop
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Group-sequential logrank-based methods for monitoring bivariate non-competing event-time outcomes in clinical trials2018

    • Author(s)
      Hamasaki T, Evans SR, Sugimoto T, Asakura K
    • Organizer
      DIA/FDA Biostatistics Industry and Regulator Forum
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Designing efficient clinical trials with multiple time-to-event outcomes2018

    • Author(s)
      Hamsaki T, Asakura K, Halabi S, Evans SR, Sugimoto T
    • Organizer
      Institute of Mathematical Statistics Asia Pacific Rim Meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Statistical monitoring of semi-competing risk outcomes in clinical trials2018

    • Author(s)
      Hamasaki T, Evans SR, Asakura K
    • Organizer
      2018 Joint Statistical Meetings
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interim evaluation of efficacy or futility in group-sequential trials with two time-to-event outcomes2018

    • Author(s)
      Hamasaki T, Asakura K, Evans SR, Halabi S, Hsiao C, Sugimoto T, Yamamoto H
    • Organizer
      The 39th Annual Meeting of the Society for Clinical Trials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Group-sequential logrank-based methods for monitoring bivariate non-competing event-time outcomes in clinical trials2018

    • Author(s)
      Hamasaki T, Evans SR, Halabi S, Sugimoto T, Asakura K
    • Organizer
      DIA/FDA Biostatistics Industry and Regulator Forum
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Group-sequential strategies in clinical trials with bivariate time-to-event outcomes2018

    • Author(s)
      Hamasaki T, Evans SR, Halabi S, Sugimoto T, Asakura K
    • Organizer
      ENAR 2018 Spring Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [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
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interim evaluation of futility in clinical trials with co-primary endpoints2017

    • Author(s)
      Asakura K, Hamasaki T, Evans SR
    • Organizer
      CEN-ISBS Joint Conference on Biometrics & Biopharmaceutical Statistics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interim monitoring of clinical trials with co-primary endpoints2017

    • Author(s)
      Asakura K
    • Organizer
      The 26th South Taiwan Statistical Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Design, data monitoring and analysis of clinical trials with co-primary endpoints2017

    • Author(s)
      Hamasaki T, Evans SR, Asakura K
    • Organizer
      CEN-ISBS Joint Conference on Biometrics & Biopharmaceutical Statistics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Designing multi-stage clinical trials with multiple event-time endpoints2017

    • Author(s)
      Hamasaki T, Evans SR, Sugimoto T, Asakura K
    • Organizer
      2017 Joint Statistical Meetings
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Statistical monitoring of clinical trials with semi-competing risks outcomes2017

    • Author(s)
      Hamasaki T, Evans SR, Sugimoto T, Asakura K
    • Organizer
      The 2017 ICSA Applied Statistics Symposium
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Efficient group-sequential designs for monitoring two time-to-event outcomes in clinical trials2017

    • Author(s)
      Hamasaki T, Asakura K, Sugimoto T, Evans SR, Yamamoto H, Hsiao C
    • Organizer
      The 37th Annual Meeting of the Society for Clinical Trials
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [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
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Improved group sequential clinical trial designs with multiple co-primary endpoints2016

    • Author(s)
      Asakura K, Hamasaki T, Konig F, Posch M
    • Organizer
      Joint Statistical Meetings 2016
    • Place of Presentation
      Chicago, USA
    • Year and Date
      2016-07-30
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [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
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interim monitoring of clinical trials with co-primary endpoints using predicted intervals2016

    • Author(s)
      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
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [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
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Interim evaluation of efficacy or futility in group-sequential trials with multiple co-primary endpoints2015

    • Author(s)
      Koko Asakura
    • Organizer
      Joint Meeting with National Health Research Institutes
    • Place of Presentation
      Miaoli, Taiwan
    • Year and Date
      2015-12-09
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Early stopping for futility or efficacy in group-sequential clinical trials with multiple co-primary endpoints2015

    • Author(s)
      Toshimitsu Hamasaki, Koko Asakura, Scott R. Evans
    • Organizer
      The 9th International Conference on Multiple Comparison Procedure
    • Place of Presentation
      Hyderabad, India
    • Year and Date
      2015-09-02
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Evaluation of futility or efficacy in group-sequential clinical trials with multipleco-primary endpoints2015

    • Author(s)
      Koko Asakura, Toshimitsu Hamasaki and Scott R. Evans
    • Organizer
      2015 Joint Statistical Meetings
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2015-08-08
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Group-sequential strategies for clinical trials when comparing two interventions using multiple co-primary endpoints2015

    • Author(s)
      Toshimitsu Hamasaki, Koko Asakura, Scott R. Evans
    • Organizer
      2015 Joint Statistical Meetings
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2015-08-08
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Group-Sequential Clinical Trials When Considering Multiple Outcomes as Co-Primary Endpoints2015

    • Author(s)
      Toshimitsu Hamasaki, Scott R. Evans, Koko Asakura
    • Organizer
      Joint ICSA and Graybill Conference
    • Place of Presentation
      Fort Collins, USA
    • Year and Date
      2015-07-15
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Group-sequential strategies for clinical trials when considering multiple endpoints as co-primary2015

    • Author(s)
      Toshimitsu Hamasaki, Scott R. Evans, Koko Asakura
    • Organizer
      The 2015 ISBS/DIA Joint Symposium
    • Place of Presentation
      Beijing, China
    • Year and Date
      2015-06-29
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Early stopping for futility or efficacy in group-sequential clinical trials with multiple co-primary endpoints2015

    • Author(s)
      Toshimitsu Hamasaki, Koko Asakura, Scott R. Evans
    • Organizer
      The 2015 ISBS/DIA Joint Symposium
    • Place of Presentation
      Beijing, China
    • Year and Date
      2015-06-29
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Group-sequential strategies for clinical trials with co-primary endpoints2015

    • Author(s)
      Koko Asakura, Toshimitsu Hamasaki and Scott R. Evans
    • Organizer
      SCT 36th Annual Meeting
    • Place of Presentation
      Arlington, USA
    • Year and Date
      2015-05-17
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Sample size considerations for clinical trials with two co-primary time-to-event outcomes2015

    • Author(s)
      Toshimitsu Hamasaki, Tomoyuki Sugimoto, Koko Asakura, Scott R. Evans, Mayumi Fukuda, Haruko Yamamoto
    • Organizer
      SCT 36th Annual Meeting
    • Place of Presentation
      Arlington, USA
    • Year and Date
      2015-05-17
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Book] Group-Sequential Clinical Trials with Multiple Co-Objectives2016

    • Author(s)
      Hamasaki T, Asakura K, Evans SR, Ochiai T
    • Total Pages
      113
    • Publisher
      Springer
    • Related Report
      2016 Research-status Report
  • [Book] Applied Statistics in Biomedicine and Clinical Trials Design (Chapter 14)2015

    • Author(s)
      Koko Asakura, Toshimitsu Hamasaki, Scott R Evans, Tomoyuki Sugimoto, Takashi Sozu and Chen Z. et al. (Eds.)
    • Total Pages
      546
    • Publisher
      Springer
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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