September 13, 2006

Moderators of Treatment OutcomesClinical, Research, and Policy Importance

Author Affiliations

Author Affiliations: Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, Calif (Dr Kraemer); Department of Psychiatry, University of Pittsburgh School of Medicine, Western Psychiatric Institute and Clinic, Pittsburgh, Pa (Drs Frank and Kupfer).

JAMA. 2006;296(10):1286-1289. doi:10.1001/jama.296.10.1286

For the last half-century, randomized clinical trials (RCTs) have been the “gold standard” of evaluating the efficacy or effectiveness of clinical interventions. Randomized clinical trials are based on well-recognized principles1 that underlie guidelines, such as the CONSORT (Consolidated Standards of Reporting Trials),24 for reporting such studies. As frequently happens when practices become routine, the underlying logic fades into the background. This increasingly appears to be the case with RCT methodology. Even the best performed RCTs often fail to provide information most crucial to evaluating the treatment under study and thus to improving medical decision making.

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