Article ; Online: Controls, comparator arms, and designs for critical care comparative effectiveness research: It's complicated.
Clinical trials (London, England)
2023 Volume 21, Issue 1, Page(s) 124–135
Abstract: Background: Comparative effectiveness research is meant to determine which commonly employed medical interventions are most beneficial, least harmful, and/or most costly in a real-world setting. While the objectives for comparative effectiveness ... ...
| Abstract | Background: Comparative effectiveness research is meant to determine which commonly employed medical interventions are most beneficial, least harmful, and/or most costly in a real-world setting. While the objectives for comparative effectiveness research are clear, the field has failed to develop either a uniform definition of comparative effectiveness research or an appropriate set of recommendations to provide standards for the design of critical care comparative effectiveness research trials, spurring controversy in recent years. The insertion of non-representative control and/or comparator arm subjects into critical care comparative effectiveness research trials can threaten trial subjects' safety. Nonetheless, the broader scientific community does not always appreciate the importance of defining and maintaining critical care practices during a trial, especially when vulnerable, critically ill populations are studied. Consequently, critical care comparative effectiveness research trials sometimes lack properly constructed control or active comparator arms altogether and/or suffer from the inclusion of "unusual critical care" that may adversely affect groups enrolled in one or more arms. This oversight has led to critical care comparative effectiveness research trial designs that impair informed consent, confound interpretation of trial results, and increase the risk of harm for trial participants. Methods/examples: We propose a novel approach to performing critical care comparative effectiveness research trials that mandates the documentation of critical care practices prior to trial initiation. We also classify the most common types of critical care comparative effectiveness research trials, as well as the most frequent errors in trial design. We present examples of these design flaws drawn from past and recently published trials as well as examples of trials that avoided those errors. Finally, we summarize strategies employed successfully in well-designed trials, in hopes of suggesting a comprehensive standard for the field. Conclusion: Flawed critical care comparative effectiveness research trial designs can lead to unsound trial conclusions, compromise informed consent, and increase risks to research subjects, undermining the major goal of comparative effectiveness research: to inform current practice. Well-constructed control and comparator arms comprise indispensable elements of critical care comparative effectiveness research trials, key to improving the trials' safety and to generating trial results likely to improve patient outcomes in clinical practice. |
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| MeSH term(s) | Humans ; Comparative Effectiveness Research ; Arm ; Informed Consent ; Research Subjects ; Critical Care |
| Language | English |
| Publishing date | 2023-08-24 |
| Publishing country | England |
| Document type | Journal Article |
| ZDB-ID | 2138796-5 |
| ISSN | 1740-7753 ; 1740-7745 |
| ISSN (online) | 1740-7753 |
| ISSN | 1740-7745 |
| DOI | 10.1177/17407745231195094 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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