방법 비교

	짝짓기 무작위 임상시험	적응형 무작위 배정 임상시험
분야	역학	역학
계열	Process / pipeline	Process / pipeline
기원 연도	Mid-20th century concept; methodological formalization circa 2000–2010	Late 1990s–2000s (widespread adoption post-2010)
창시자	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
유형	Experimental clinical study design	Experimental clinical trial design
원전	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.
별칭	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
관련	6	6
요약	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.