期刊
AMERICAN JOURNAL OF PSYCHIATRY
卷 170, 期 7, 页码 723-733出版社
AMER PSYCHIATRIC PUBLISHING, INC
DOI: 10.1176/appi.ajp.2012.12040474
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类别
资金
- NIMH [K23 MH085236, T32 MH015144]
- Hope for Depression Research Foundation
- NARSAD Young Investigator Award
Placebo response in clinical trials of antidepressant medications is substantial and has been increasing. High placebo response rates hamper efforts to detect signals of efficacy for new antidepressant medications, contributing to trial failures and delaying the delivery of new treatments to market. Media reports seize upon increasing placebo response and modest advantages for active drugs as reasons to question the value of antidepressant medication, which may further stigmatize treatments for depression and dissuade patients from accessing mental health care. Conversely, enhancing the factors responsible, for placebo response may represent a strategy for improving available treatments for major depressive disorder. A conceptual framework describing the causes of placebo response is needed in order to develop strategies for minimizing placebo response in clinical trials, maximizing placebo response in clinical practice, and talking with depressed patients about the risks and benefits of antidepressant medications. In this review, the authors examine contributors to placebo response in antidepressant clinical trials and propose an explanatory model. Research aimed at reducing placebo response should focus on limiting patient expectancy and the intensity of therapeutic contact in antidepressant clinical trials, while the optimal strategy in clinical practice may be to combine active medication, with a presentation and level of therapeutic contact designed to enhance treatment response.
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