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Establishment of a Prognostic Prediction Model Using Gene Expression Profiles from RNA-Seq Analysis in Cancer Patients

Research Project

Project/Area Number 21K12127
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 62010:Life, health and medical informatics-related
Research InstitutionKitasato University

Principal Investigator

Hirofumi Michimae  北里大学, 薬学部, 講師 (70447069)

Project Period (FY) 2021-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords生存時間解析 / ワイブル分布 / コピュラ / リッジ回帰 / 一般化線形モデル / 競合リスク / 左側切断 / ベイズ推定 / RNAシークエンシング / 予後予測モデル
Outline of Research at the Start

近年、RNA-seq(RNAシークエンシング)はマイクロアレイと比較して優れた特徴を多く有することから遺伝子研究の分野で急速に発展してきたが、未だRNA-seq解析による離散的な遺伝子発現量データに特化した信頼のおける癌患者の予後予測モデルは提案されていない。
本研究では癌患者の個別化医療の実現に向けた予測精度の高い予後予測モデルを確立することを目的とする。

Outline of Final Research Achievements

We have developed advanced statistical models to better predict patient risks and treatment outcomes in cancer care, using real-world data such as the timing and patterns of side effects and survival periods. These models are particularly focused on time-to-event data, where the timing of symptom onset or disease progression provides valuable information. We also addressed the challenge of multiple symptoms appearing together, by using methods that model the joint risk of two or more events. For example, we applied copula-based models and discrete-time hazard models to estimate how likely certain side effects are to occur at the same time, and how these risks change over time or differ between treatments. By incorporating factors like cumulative drug dosage and patient characteristics, our models allow for more personalized and accurate predictions.

Academic Significance and Societal Importance of the Research Achievements

本研究では、がん治療に伴う副作用の発生や生存期間をより正確に予測するための統計手法を開発した。従来の分析では困難だった、複数の副作用が同時に発現する場合や、治療中の中断リスクを考慮した予測が可能となった。また、時間経過に応じて変化するリスクを反映するモデルにより、患者一人ひとりの状況に応じた医療判断の支援が期待される。これにより、過不足のない治療や早期の副作用対策が可能となり、より安心で質の高い医療提供に貢献する。

Report

(5 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (19 results)

All 2025 2024 2023 2022 2021

All Journal Article (15 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 13 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] 相関した競合リスクを伴う左側切断・右側打ち切りデータのベイズ流解析2025

    • Author(s)
      道前洋史
    • Journal Title

      統計数理

      Volume: -

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Bayesian ridge estimators based on a vine copula-based prior in Poisson and negative binomial regression models2024

    • Author(s)
      Michimae Hirofumi、Emura Takeshi、Furukawa Kyoji
    • Journal Title

      Journal of Statistical Computation and Simulation

      Volume: 94 Issue: 18 Pages: 3979-4000

    • DOI

      10.1080/00949655.2024.2408351

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed
  • [Journal Article] コピュラで構成した同時事前分布に基づくベイズリッジ推定量~Cox回帰モデルを例に~2024

    • Author(s)
      道前洋史
    • Journal Title

      計量生物学会誌

      Volume: 印刷中

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Bayesian parametric estimation based on left-truncated competing risks data under bivariate Clayton copula models.2024

    • Author(s)
      Michimae H, Emura T, Miyamoto A, Kishi K
    • Journal Title

      Journal of Applied Statistics

      Volume: in press Issue: 13 Pages: 2690-2708

    • DOI

      10.1080/02664763.2024.2315458

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Bayesian ridge estimators based on copula-based joint prior distributions for logistic regression parameters.2024

    • Author(s)
      Aizawa Y, Emura T, Michimae H
    • Journal Title

      Communications in Statistics - Simulation and Computation

      Volume: in press Issue: 1 Pages: 252-266

    • DOI

      10.1080/03610918.2023.2251728

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] Analysis of Left-Truncated and Right-Censored Competing Risks Data—About Present and Future Perspectives—2023

    • Author(s)
      道前 洋史
    • Journal Title

      Journal of the Japan Statistical Society, Japanese Issue

      Volume: 52 Issue: 2 Pages: 203-220

    • DOI

      10.11329/jjssj.52.203

    • ISSN
      0389-5602, 2189-1478
    • Year and Date
      2023-03-01
    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dynamic lifetime prediction using a Weibull-based bivariate failure time model: a meta-analysis of individual-patient data.2023

    • Author(s)
      Shinohara S, Lin YH, Michimae H, Emura T
    • Journal Title

      Communications in Statistics - Simulation and Computation

      Volume: 52 Issue: 2 Pages: 349-368

    • DOI

      10.1080/03610918.2020.1855449

    • Related Report
      2023 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Correction: Bayesian ridge regression for survival data based on a vine copula-based prior2023

    • Author(s)
      Michimae Hirofumi、Emura Takeshi
    • Journal Title

      AStA Advances in Statistical Analysis

      Volume: in press Issue: 3 Pages: 703-703

    • DOI

      10.1007/s10182-023-00470-2

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Left‐truncated and right‐censored field failure data: Review of parametric analysis for reliability2022

    • Author(s)
      Emura Takeshi、Michimae Hirofumi
    • Journal Title

      Quality and Reliability Engineering International

      Volume: 38 Issue: 7 Pages: 3919-3934

    • DOI

      10.1002/qre.3161

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Bayesian ridge estimators based on copula-based joint prior distributions for regression coefficients2022

    • Author(s)
      Michimae Hirofumi、Emura Takeshi
    • Journal Title

      Computational Statistics

      Volume: 37 Issue: 5 Pages: 2741-2769

    • DOI

      10.1007/s00180-022-01213-8

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Likelihood Inference for Copula Models Based on Left-Truncated and Competing Risks Data from Field Studies2022

    • Author(s)
      Michimae Hirofumi、Emura Takeshi
    • Journal Title

      Mathematics

      Volume: 10 Issue: 13 Pages: 2163-2163

    • DOI

      10.3390/math10132163

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dynamic Risk Prediction via a Joint Frailty-Copula Model and IPD Meta-Analysis: Building Web Applications2022

    • Author(s)
      Emura Takeshi、Michimae Hirofumi、Matsui Shigeyuki
    • Journal Title

      Entropy

      Volume: 24 Issue: 5 Pages: 589-589

    • DOI

      10.3390/e24050589

    • Related Report
      2022 Research-status Report 2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] meta.shrinkage: An R Package for Meta-Analyses for Simultaneously Estimating Individual Means2022

    • Author(s)
      Nanami Taketomi, Hirofumi Michimae, Yuan-Tsung Chang, Takeshi Emura
    • Journal Title

      Algorithms

      Volume: 15 Issue: 1 Pages: 1-17

    • DOI

      10.3390/a15010026

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Assessing the numerical integration of dynamic prediction formulas using the exact expressions under the joint frailty-copula model2021

    • Author(s)
      Kawakami R, Michimae H, Lin Y-H
    • Journal Title

      Japanese Journal of Statistics and Data Science

      Volume: 4 Issue: 2 Pages: 1293-1321

    • DOI

      10.1007/s42081-021-00133-z

    • NAID

      210000170700

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 左切断・右打ち切りのあるフィールド寿命データ解析~パラメトリックモデルに基づく統計的推論と信頼性の予測~2021

    • Author(s)
      江村剛志・道前洋史
    • Journal Title

      電子情報通信学会技術研究報告

      Volume: 121 Pages: 7-12

    • Related Report
      2021 Research-status Report
  • [Presentation] Bayesian ridge estimators based on copula-based joint prior distributions for logistic regression parameters2022

    • Author(s)
      Yuto Aizawa, Hirofumi Michimae
    • Organizer
      The 5th International Conference on Econometrics and Statistics (EcoSta 2022)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] ロジスティック回帰モデルにおけるコピュラ同時事前分布に基づいたベイズ流リッジ回帰推定量の提案2022

    • Author(s)
      相澤宥斗・道前洋史
    • Organizer
      統計関連学会連合大会
    • Related Report
      2022 Research-status Report
  • [Presentation] ヴァインコピュラで事前分布をモデリングしたベイズリッジ推定量2022

    • Author(s)
      道前洋史・江村剛志
    • Organizer
      電子情報通信学会信頼性研究会(R)
    • Related Report
      2022 Research-status Report
  • [Presentation] 左切断・右打ち切りのあるフィールド寿命データ解析 ~ パラメトリックモデルに基づく統計的推論と信頼性の予測 ~2021

    • Author(s)
      江村剛志・道前洋史
    • Organizer
      信頼性研究会
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2021-04-28   Modified: 2026-01-16  

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