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Estimation of the optimal level of biomarkers targeted in a dynamic treatment regime

Research Project

Project/Area Number 25730014
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Statistical science
Research InstitutionThe University of Tokyo

Principal Investigator

Shinozaki Tomohiro  東京大学, 医学(系)研究科(研究院), 助教 (60644482)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords統計的因果推論 / 疫学 / 臨床試験
Outline of Final Research Achievements

To carry "personalized medicine" for patients, that is, to conduct more effective medical treatments according to individual patient's characteristics, we should consider the set of treatment regimes (treatment strategy) that is based on patient's time-dependent biomarkers during clinical practice. In this study, I focused on "dynamic treatment regimes" that are defined as adaptive treatment strategies based on the patient's time-varying characteristics, and to estimate the appropriate levels of the biomarkers to be targeted in the regimes. In particular, I have utilized, extended, and statistically evaluated the following causal-inference methods: 1) marginal structural models, 2) structural nested models, and 3) the parametric g-computation algorithm.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (8 results)

All 2015 2014 2013

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Acknowledgement Compliant: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Doubly Robust Estimation of Standardized Risk Difference and Ratio in the Exposed Population2015

    • Author(s)
      Shinozaki T, Matsuyama Y
    • Journal Title

      Epidemiology

      Volume: 26 Issue: 6 Pages: 873-877

    • DOI

      10.1097/ede.0000000000000363

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Doubly robust estimation of standardized risk difference and ratio in the exposed population2015

    • Author(s)
      Shinozaki T, Matsuyama Y
    • Journal Title

      Epidemiology

      Volume: 0 Pages: 0-0

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Estimation of controlled direct effects in time-varying treatments using structural nested mean models: application to a primary prevention trial for coronary events with pravastatin2014

    • Author(s)
      Shinozaki T, Matsuyama Y, Ohashi Y
    • Journal Title

      Statistics in Medicine

      Volume: 33 Issue: 18 Pages: 3214-3228

    • DOI

      10.1002/sim.6162

    • Related Report
      2014 Research-status Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Doubly robust standardization in cohort studies with a binary exposure and censored events2015

    • Author(s)
      Tomohiro Shinozaki
    • Organizer
      2015 Joint Statistical Meetings
    • Place of Presentation
      Seattle, WA
    • Year and Date
      2015-08-08 – 2015-08-13
    • Related Report
      2014 Research-status Report
  • [Presentation] Doubly robust standardization in cohort studies with a binary exposure and censored events2015

    • Author(s)
      Shinozaki T, Matsuyama Y
    • Organizer
      2015 Joint Statistical Meetings
    • Place of Presentation
      Seattle, USA
    • Year and Date
      2015-08-08
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Doubly robust estimation of a marginal structural model in the exposed population2014

    • Author(s)
      Tomohiro Shinozaki
    • Organizer
      Kyoto International Conference on Modern Statistics in the 21st Century
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2014-11-17 – 2014-11-18
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Robust and efficient estimation of structural nested mean models in randomized trials with partial compliance using generalized method of moments2014

    • Author(s)
      Tomohiro Shinozaki
    • Organizer
      The XXVIIth International Biometric Conference
    • Place of Presentation
      Florence, Italy
    • Year and Date
      2014-07-06 – 2014-07-11
    • Related Report
      2014 Research-status Report
  • [Presentation] Sensitivity analysis in randomized trials with partial compliance using generalized method of moments applied to structural nested models2013

    • Author(s)
      Tomohiro Shinozaki
    • Organizer
      34th Annual Conference of the International Society for Clinical Biostatistics
    • Place of Presentation
      Munich, Germany
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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