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stat.ME2025
Designing Efficient Hybrid and Single-Arm Trials: External Control Borrowing and Sample Size Calculation
Yujing Gao, Xiang Zhang, Shu Yang
External controls (ECs) from historical trials or real-world data have gained increasing attention as a way to augment hybrid and single-arm trials, especially when balanced random…
stat.ME2025
SensIAT: An R Package for Conducting Sensitivity Analysis of Randomized Trials with Irregular Assessment Times
Andrew Redd, Yujing Gao, Bonnie B. Smith +3
This paper introduces an R package SensIAT that implements a sensitivity analysis methodology, based on augmented inverse intensity weighting, for randomized trials with irregular…
stat.ME2022★ 1 cited
Semi-Parametric Sensitivity Analysis for Trials with Irregular and Informative Assessment Times
Bonnie B. Smith, Yujing Gao, Shu Yang +3
Many trials are designed to collect outcomes at or around pre-specified times after randomization. If there is variability in the times when participants are actually assessed, thi…