Comparar métodos

	Ensayo Clínico Aleatorizado Pareado	Ensayo clínico aleatorizado adaptativo
Campo	Epidemiología	Epidemiología
Familia	Process / pipeline	Process / pipeline
Año de origen	Mid-20th century concept; methodological formalization circa 2000–2010	Late 1990s–2000s (widespread adoption post-2010)
Autor original	Developed formally in biostatistics literature; Greevy, Imai and colleagues advanced modern frameworks in the 2000s	Donald Berry and colleagues; formalized by FDA guidance in 2010 and 2019
Tipo	Experimental clinical study design	Experimental clinical trial design
Fuente seminal	Imai, K., King, G., & Nall, C. (2009). The essential role of pair matching in cluster-randomized experiments, with application to the Mexican universal health insurance evaluation. Statistical Science, 24(1), 29–53.	Berry, D. A. (2006). Bayesian clinical trials. Nature Reviews Drug Discovery, 5(1), 27–36.
Alias	matched RCT, matched-pair randomized trial, matched randomized controlled trial, covariate-matched RCT	adaptive RCT, adaptive trial design, response-adaptive randomization trial, adaptive clinical trial
Relacionados	6	6
Resumen	A matched randomized clinical trial pairs participants (or clusters) on key baseline characteristics before randomization, then allocates one member of each pair to treatment and the other to control. This design combines the causal validity of randomization with the covariate balance of matching, increasing statistical efficiency and reducing confounding from known prognostic variables without sacrificing the internal validity of a controlled experiment.	An adaptive randomized clinical trial (adaptive RCT) is a prospective experimental study that uses pre-specified rules to modify one or more trial aspects — such as sample size, allocation ratios, or treatment arms — based on accumulating data collected during the trial itself, while maintaining statistical validity and integrity of the study.