183 citations · 272 across the 13 of their papers we have counts for
13 papers
Independent increments and group sequential tests
Anastasios A. Tsiatis, Marie Davidian
Widely used methods and software for group sequential tests of a null hypothesis of no treatment difference that allow for early stopping of a clinical trial depend primarily on th…
A Generalized Logrank-type Test for Comparison of Treatment Regimes in Sequential Multiple Assignment Randomized Trials
Anastasios A. Tsiatis, Marie Davidian
The sequential multiple assignment randomized trial (SMART) is the ideal study design for the evaluation of multistage treatment regimes, which comprise sequential decision rules t…
Adaptive Randomization Methods for Sequential Multiple Assignment Randomized Trials (SMARTs) via Thompson Sampling
Peter Norwood, Marie Davidian, Eric Laber
Response-adaptive randomization (RAR) has been studied extensively in conventional, single-stage clinical trials, where it has been shown to yield ethical and statistical benefits,…
Interim Monitoring of Sequential Multiple Assignment Randomized Trials Using Partial Information
Cole Manschot, Eric Laber, Marie Davidian
The sequential multiple assignment randomized trial (SMART) is the gold standard trial design to generate data for the evaluation of multi-stage treatment regimes. As with conventi…
Group sequential methods for interim monitoring of randomized clinical trials with time-lagged outcome
Anastasios A. Tsiatis, Marie Davidian
The primary analysis in two-arm clinical trials usually involves inference on a scalar treatment effect parameter; e.g., depending on the outcome, the difference of treatment-speci…
Estimation of the odds ratio in a proportional odds model with censored time-lagged outcome in a randomized clinical trial
Anastasios A. Tsiatis, Marie Davidian, Shannon T. Holloway
In many randomized clinical trials of therapeutics for COVID-19, the primary outcome is an ordinal categorical variable, and interest focuses on the odds ratio (active agent vs. co…