Comparar métodos
Examine os métodos selecionados lado a lado; as linhas que diferem ficam destacadas.
| Ensaio Controlado Randomizado Piloto× | Ensaio Clínico Randomizado Adaptativo× | |
|---|---|---|
| Área | Delineamento experimental | Delineamento experimental |
| Família | Process / pipeline | Process / pipeline |
| Ano de origem≠ | 1990s–2000s (methodological formalization) | 1980s–2000s (formalized; earlier sequential testing roots from Wald, 1947) |
| Autor original≠ | Formalized through clinical trials methodology community | Donald Berry and others; foundational adaptive trial methods developed through 1980s–2000s biostatistics literature |
| Tipo≠ | Experimental feasibility design | Experimental design — adaptive variant of RCT |
| Fonte seminal≠ | Thabane, L., Ma, J., Chu, R., Cheng, J., Ismaila, A., Rios, L. P., ... & Goldsmith, C. H. (2010). A tutorial on pilot studies: the what, why and how. BMC Medical Research Methodology, 10(1), 1. DOI ↗ | Chow, S.-C., & Chang, M. (2008). Adaptive Design Methods in Clinical Trials. Chapman & Hall/CRC. ISBN: 978-1584887690 |
| Outros nomes | pilot RCT, feasibility RCT, pilot trial, preliminary RCT | Adaptive RCT, Response-adaptive RCT, Adaptive clinical trial, Platform trial |
| Relacionados≠ | 5 | 6 |
| Resumo≠ | A pilot randomized controlled trial (pilot RCT) is a small-scale, fully randomized experiment conducted before a definitive RCT to test the feasibility of study procedures, estimate key parameters such as recruitment rates and effect-size variability, and identify practical barriers. It uses the same randomization, intervention, and measurement protocol as the planned full trial but on a fraction of the target sample. The goal is not to confirm efficacy but to refine and justify the main trial design. | An adaptive randomized controlled trial (adaptive RCT) is an experimental design in which pre-specified rules allow modifications to the trial while it is ongoing — such as changing allocation ratios, dropping underperforming arms, or stopping early for efficacy or futility — based on accumulating interim data. These adaptations are planned before the trial starts and governed by statistical rules to preserve Type I error control and validity. |
| ScholarGateConjunto de dados ↗ |
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