• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of Statistical Methods for Clinical Trials Using Multiple Endpoints

Research Project

Project/Area Number 19K19383
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 58010:Medical management and medical sociology-related
Research InstitutionJuntendo University (2023)
Yokohama City University (2019-2022)

Principal Investigator

Sakamaki Kentaro  順天堂大学, 健康データサイエンス学部, 准教授 (30644819)

Project Period (FY) 2019-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords多重評価項目 / 複合評価項目 / 多重比較 / 臨床試験 / 複数評価項目 / 因果推論 / 多重エンドポイント / 群逐次デザイン
Outline of Research at the Start

複数の評価項目を用いることで、より明確に治療の特徴が評価できる。また、試験途中での解析(中間解析)は、良い治療を素早く医療現場に提供できる可能性を高める。複数の評価項目を用い、中間解析を実施する臨床試験に関するデザインや解析のニーズはあるものの、既存手法は解析時点や評価項目の重要度などを考慮していないため、試験を効率的に実施することができない。一方で、各評価項目の中間解析を効率的に行おうとすると第1種の過誤確率が上昇する可能性が高まる。本研究では、第1種の過誤確率を制御し、検出力を高める、複数の評価項目を効率的に利用する臨床試験デザインを開発することである。

Outline of Final Research Achievements

We researched clinical trials using multiple endpoints and published related papers and books. We summarized evaluation methods for trials without interim analysis, revealing that multiple endpoints are also used in trials with interim analysis. Additionally, we researched the evaluation of treatment effects in clinical trials for SARS-CoV-2, hyperkalemia, and cancer, demonstrating new definitions and the performance of composite endpoints. Furthermore, we developed clinical trial designs to efficiently evaluate multiple survival outcomes, demonstrating the effectiveness of our proposed methods.

Academic Significance and Societal Importance of the Research Achievements

複数の評価項目を用いる臨床試験の新しい統計手法を開発した。また、Bonferroni手順や閉検定手順を用いた多重性調整により、複数の生存時間アウトカムを効率的に評価する臨床試験デザインを提案し、その性能をシミュレーションにより確認した。これらは、抗がん剤やCOVID-19治療薬などを短期間で評価できるようにし、医療現場への迅速な治療提供に貢献する可能性がある。また、開発した手法は将来の臨床試験デザインの基盤となり、広範な疾患領域での応用が期待される。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 2021 2020 2019

All Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Book (1 results)

  • [Journal Article] The net benefit for time-to-event outcome in oncology clinical trials with treatment switching2023

    • Author(s)
      Fukuda Musashi、Sakamaki Kentaro、Oba Koji
    • Journal Title

      Clinical Trials

      Volume: 20 Issue: 6 Pages: 670-680

    • DOI

      10.1177/17407745231186081

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Statistical methods and graphical displays of quality of life with survival outcomes in oncology clinical trials for supporting the estimand framework2022

    • Author(s)
      Sakamaki Kentaro、Kawahara Takuya
    • Journal Title

      BMC Medical Research Methodology

      Volume: 22 Issue: 1 Pages: 1-11

    • DOI

      10.1186/s12874-022-01735-1

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Estimands for Continuous Longitudinal Outcomes in the Presence of Treatment Discontinuation?A Simulation Study in Hyperkalemia Treatments2022

    • Author(s)
      Tsuchikawa Masaru、Sakamaki Kentaro
    • Journal Title

      Statistics in Biopharmaceutical Research

      Volume: - Issue: 2 Pages: 1-13

    • DOI

      10.1080/19466315.2022.2050289

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Definitions and elements of endpoints in phase III randomized trials for the treatment of COVID-19: a cross-sectional analysis of trials registered in ClinicalTrials.gov2021

    • Author(s)
      Kentaro Sakamaki, Yukari Uemura, Yosuke Shimizu
    • Journal Title

      Trials

      Volume: 22(1) Issue: 1 Pages: 788-788

    • DOI

      10.1186/s13063-021-05763-y

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bayesian decision theory for clinical trials: Utility and sample size determination2020

    • Author(s)
      Sakamaki Kentaro、Kanekiyo Michio、Ohwada Shoichi、Matsuura Kentaro、Kakizume Tomoyuki、Takahashi Fumihiro、Takazawa Akira、Hagihara Shunsuke、Morita Satoshi
    • Journal Title

      Japanese Journal of Biometrics

      Volume: 41 Issue: 1 Pages: 55-91

    • DOI

      10.5691/jjb.41.55

    • NAID

      130007950154

    • ISSN
      0918-4430, 2185-6494
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multiplicity Adjustment and Sample Size Calculation in Clinical Trials with Multiple Endpoints: An Industry Survey of Current Practices in Japan2020

    • Author(s)
      Sakamaki Kentaro、Morita Yusuke、Iba Katsuhiro、Kamiura Toshifumi、Yoshida Seitaro、Ogawa Naoyuki、Suganami Hideki、Tsuchiya Satoru、Fukimbara Satoru
    • Journal Title

      Therapeutic Innovation & Regulatory Science

      Volume: - Issue: 5 Pages: 1097-1105

    • DOI

      10.1007/s43441-020-00126-2

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Challenges on Multiple Endpoints in Clinical Trials: An Industry Survey in Japan2019

    • Author(s)
      Sakamaki Kentaro、Yoshida Seitaro、Morita Yusuke、Kamiura Toshifumi、Iba Katsuhiro、Ogawa Naoyuki、Suganami Hideki、Tsuchiya Satoru、Fukimbara Satoru
    • Journal Title

      Therapeutic Innovation & Regulatory Science

      Volume: - Pages: 216847901985599-216847901985599

    • DOI

      10.1177/2168479019855994

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] Group Sequential Designs for Clinical Trials with Multiple Survival Endpoints2019

    • Author(s)
      Kentaro Sakamaki
    • Organizer
      The 6th International Symposium on Biopharmaceutical Statistics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Book] 多重比較法2019

    • Author(s)
      坂巻 顕太郎、寒水 孝司、濱崎 俊光
    • Total Pages
      168
    • Publisher
      朝倉書店
    • ISBN
      9784254128628
    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi