Vertaile menetelmiä

	Bayesiläinen vaiheen III kliininen tutkimus	Adaptiivinen vaiheen III kliininen tutkimus
Tieteenala	Epidemiologia	Epidemiologia
Menetelmäperhe	Process / pipeline	Process / pipeline
Syntyvuosi	1990s–2000s (widespread application)	1969–2019 (sequential testing roots ~1969; formal adaptive design guidance 2010–2019)
Kehittäjä	Donald A. Berry; David J. Spiegelhalter (formalization in clinical context)	Methodological foundations by Armitage et al. (1969); modern adaptive framework codified by FDA and ICH guidance (2010s)
Tyyppi	Confirmatory randomized controlled trial with Bayesian inference	Interventional confirmatory clinical trial with pre-specified interim adaptations
Alkuperäislähde	Spiegelhalter, D. J., Abrams, K. R., & Myles, J. P. (2004). Bayesian Approaches to Clinical Trials and Health-Care Evaluation. Wiley. ISBN: 978-0471499756	International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH). (2019). ICH E9(R1) Addendum on Estimands and Sensitivity Analysis in Clinical Trials to the Guideline on Statistical Principles for Clinical Trials. ICH Harmonised Guideline.
Rinnakkaisnimet	Bayesian confirmatory trial, Bayesian RCT Phase III, Bayesian pivotal trial, BayesCT	adaptive confirmatory trial, seamless Phase II/III adaptive trial, adaptive pivotal trial, adaptive design Phase III
Liittyvät	5	6
Tiivistelmä	A Bayesian Phase III clinical trial is a large-scale, confirmatory randomized controlled trial that uses Bayesian statistical inference rather than conventional frequentist hypothesis testing to evaluate whether an experimental treatment meets pre-defined efficacy and safety thresholds. By combining prior evidence with accumulating trial data, it quantifies the probability that the treatment effect exceeds a clinically meaningful threshold, enabling more transparent decision-making under uncertainty.	An adaptive Phase III clinical trial is a confirmatory randomized controlled trial that incorporates pre-specified rules allowing modifications to the trial design — such as sample size re-estimation, dose selection, or population enrichment — based on accumulating interim data, while preserving the Type I error rate. It sits at the top of the evidence hierarchy and is used to obtain regulatory approval of new interventions.