Author

Keisuke Hanada

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Review Open access Sep 2026

Race and trial region changes in cancer clinical trials between 2013 and 2024

Background The latest changes in racial and geographical enrollment in cancer clinical trials in the 2020s have not been fully characterized, despite ongoing measures by the US Food and Drug Administration (FDA) to enhance diversity. We aimed to quantitatively elucidate the trial population of FDA-approved cancer drugs...

Satoshi Hirano, Keisuke Hanada, Hideki Maeda · Frontiers in Medicine · 0 citations

Preprint Oct 2026

Functional meta-analysis of survival curves across reporting formats and time points

Meta-analyses of survival outcomes commonly pool log hazard ratios or survival probabilities at selected time points. When reporting formats and observation times differ across studies, methods are needed to use available survival information for estimation at a common target time. We propose a functional random-effect...

Keisuke Hanada · 0 citations

Open access Mar 2025

Integrating Meta-Analysis Into a Specific Study (InMASS) for Estimating the Target-Population Average Treatment Effect.

Randomized controlled trials remain the benchmark for estimating treatment effects, yet practical constraints often restrict sample sizes in a prespecified target population. In such settings, evidence from completed trials is frequently available only in aggregate form, which precludes direct individual-level integrat...

Keisuke Hanada, M. Kojima · Biometrical journal. Biometr... · 1 citation