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Registry randomised trials: a methodological perspective
Dorota A Doherty1,2, Steven Y C Tong3,4, Jennifer Reilly5,6
1UWA Medical School, The University of Western Australia, Perth, Western Australia, Australia.
BMJ Open
|March 1, 2023
Summary
Registry randomised clinical trials (RRCTs) offer a cost-effective method for answering clinical questions. Embedding these trials into existing registries streamlines data collection and validation for pragmatic research.
Area of Science:
- Clinical Trials Methodology
- Health Services Research
- Epidemiology
Background:
- Traditional randomized controlled trials can be costly and time-consuming.
- Registry randomised clinical trials (RRCTs) offer a pragmatic alternative.
- RRCTs can leverage existing registry infrastructure for efficiency.
Purpose of the Study:
- To highlight the potential of RRCTs in addressing clinical questions.
- To discuss the various forms and implementation strategies of RRCTs.
- To emphasize the cost-effectiveness and pragmatic nature of RRCTs.
Main Methods:
- RRCTs can be integrated into population-based or single-site registries.
- Various RRCT designs exist, including parallel, platform, adaptive, and cluster trials.
- Utilizing established registries simplifies endpoint validation and adjudication.
Main Results:
- RRCTs provide timely and cost-effective answers to clinical questions.
- Embedding trials in registries overcomes initial implementation hurdles.
- Advances in data linkage enhance the feasibility of RRCTs.
Conclusions:
- RRCTs are a valuable tool for pragmatic clinical research.
- Well-established registries facilitate efficient RRCT implementation.
- RRCTs offer a scalable and cost-effective approach to evidence generation.
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