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Post-randomization Biomarker Effect Modification Analysis in an HIV Vaccine Clinical Trial

Gilbert, Peter B.; Blette, Bryan S.; Shepherd, Bryan E.; … - In: Journal of Causal Inference 8 (2020) 1, pp. 54-69

Abstract While the HVTN 505 trial showed no overall efficacy of the tested vaccine to prevent HIV infection over placebo, markers measuring immune response to vaccination were strongly correlated with infection. This finding generated the hypothesis that some marker-defined vaccinated subgroups...

Persistent link: https://www.econbiz.de/10014610889

Sensitivity Analyses Comparing Outcomes Only Existing in a Subset Selected Post-Randomization, Conditional on Covariates, with Application to HIV Vaccine Trials

Shepherd, Bryan E.; Gilbert, Peter B.; Jemiai, Yannis; … - In: Biometrics 62 (2006) 2, pp. 332-342

Persistent link: https://www.econbiz.de/10010946880

Sensitivity Analyses Comparing Time-to-Event Outcomes Only Existing in a Subset Selected Postrandomization and Relaxing Monotonicity

Shepherd, Bryan E.; Gilbert, Peter B.; Dupont, Charles T. - In: Biometrics 67 (2011) 3, pp. 1100-1110

Persistent link: https://www.econbiz.de/10010947295

Semiparametric estimation of treatment effects given base-line covariates on an outcome measured after a post-randomization event occurs

Jemiai, Yannis; Rotnitzky, Andrea; Shepherd, Bryan E.; … - In: Journal of the Royal Statistical Society Series B 69 (2007) 5, pp. 879-901

We consider estimation, from a double-blind randomized trial, of treatment effect within levels of base-line covariates on an outcome that is measured after a post-treatment event E has occurred in the subpopulation <scriptface>P</scriptface>E,E that would experience event E regardless of treatment. Specifically, we...

Persistent link: https://www.econbiz.de/10005140187

Eliciting a Counterfactual Sensitivity Parameter

Shepherd, Bryan E.; Gilbert, Peter B.; Mehrotra, Devan V. - In: The American Statistician 61 (2007) February, pp. 56-63

Persistent link: https://www.econbiz.de/10005238013

Sensitivity Analyses Comparing Time-to-Event Outcomes Existing Only in a Subset Selected Postrandomization

Shepherd, Bryan E.; Gilbert, Peter B.; Lumley, Thomas - In: Journal of the American Statistical Association 102 (2007) June, pp. 573-582

Persistent link: https://www.econbiz.de/10005238756

Theory and Methods - Sensitivity Analyses Comparing Time-to-Event Outcomes Existing Only in a Subset Selected Postrandomization

Shepherd, Bryan E.; Gilbert, Peter B.; Lumley, Thomas - In: Journal of the American Statistical Association : JASA 102 (2007) 478, pp. 573-582

Persistent link: https://www.econbiz.de/10007741789

Sensitivity analyses comparing time-to-event outcomes existing only in a subset selected postrandomization

Shepherd, Bryan E.; Gilbert, Peter B.; Lumley, Thomas - In: Journal of the American Statistical Association : JASA 102 (2007) 478, pp. 573-582

Persistent link: https://www.econbiz.de/10003490412

Sensitivity Analysis for the Assessment of Causal Vaccine Effects on Viral Load in HIV Vaccine Trials

Gilbert, Peter B.; Bosch, Ronald J.; Hudgens, Michael G. - In: Biometrics 59 (2003) 3, pp. 531-541

Persistent link: https://www.econbiz.de/10010946428

Evaluating Candidate Principal Surrogate Endpoints

Gilbert, Peter B.; Hudgens, Michael G. - In: Biometrics 64 (2008) 4, pp. 1146-1154

Persistent link: https://www.econbiz.de/10010946439