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Commentary
April 9, 2008

When Should Data and Safety Monitoring Committees Share Interim Results in Cardiovascular Trials?

Author Affiliations

Author Affiliations: Weill Cornell Medical College of Cornell University, New York, New York (Dr Borer); and National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland (Drs Gordon and Geller).

JAMA. 2008;299(14):1710-1712. doi:10.1001/jama.299.14.1710

Data and safety monitoring committees (DSMCs) often are empanelled in randomized controlled trials (RCTs), especially multicenter trials, when primary end points include mortality and major morbidity. These committees periodically review safety and efficacy data and, based on their benefit-to-risk assessment, recommend to the sponsor whether the trial should continue and if so, whether modifications are necessary. Primarily, the DSMC must minimize risks to trial participants. Sponsors and investigators of RCTs help ensure external credibility by delegating oversight to an external committee. Although cultural differences may affect regional perceptions in the increasingly frequent multinational trials, external, independent DSMCs are accepted throughout the world.

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