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[Covid-19: Twin Method for Verifying Real-World Effectiveness Under Everyday Conditions]
Franz Porzsolt1, Christel Weiß2, Manfred Weiss3
1Institute of Clinical Economics eV, Ulm, Germany.
Summary
The Pragmatic Controlled Trial (PCT) offers real-world effectiveness (RWE) for health services, using Bayesian principles for unbiased evaluation in everyday care. This method supports conditional approval and timely innovation post-pandemic.
Area of Science:
- Health services research
- Clinical trial methodology
- Bayesian statistics
Context:
- The COVID-19 pandemic accelerated the need for rapid health service innovation and evaluation.
- Conditional approval pathways necessitate robust methods for confirming real-world effectiveness.
- Traditional research designs face challenges in evaluating interventions under non-standardized conditions.
Purpose:
- To introduce and describe the Pragmatic Controlled Trial (PCT) as a novel methodology.
- To demonstrate how PCT can assess real-world effectiveness (RWE) of health services.
- To provide a framework for collecting data to support the approval process for innovations.
Summary:
- The Pragmatic Controlled Trial (PCT) is a twin study design utilizing Bayesian principles instead of randomization.
- It allows for unbiased evaluation of health services under real-world, non-standardized conditions by stratifying patient risks and classifying interventions.
- PCT facilitates the collection of necessary data for completing the approval process after conditional approval.
Impact:
- Enables timely confirmation of health service effectiveness, meeting patient demand for rapid solutions.
- Supports conditional approval of innovations by providing a method for ongoing data collection and unbiased evaluation.
- Offers a flexible and controlled study approach adaptable to the complexities of everyday healthcare settings.

