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The effect of placebo adherence on reducing cardiovascular mortality: a meta-analysis

Zhao Yue1, Cheng Cai, Yang Ai-Fang

  • 1Department of Pharmacy, Huashan Hospital, Fudan University, 12 Middle Wu Lu Mu Qi Road, Shanghai, 200040, China.

Clinical Research in Cardiology : Official Journal of the German Cardiac Society
|November 23, 2013
PubMed

Insights

Good adherence to placebo treatments significantly reduces cardiovascular (CV) mortality. This effect appears independent of the drug itself, highlighting the importance of patient adherence in improving health outcomes.

Area of Science:

  • Cardiology
  • Clinical Trials
  • Meta-Analysis

Background:

  • Patient adherence to medical treatment, whether active drugs or placebos, is linked to reduced cardiovascular (CV) mortality.
  • Existing evidence supporting the positive impact of placebo adherence on CV mortality reduction is limited.

Purpose of the Study:

  • To investigate the influence of placebo adherence on decreasing CV mortality.
  • To compare the outcomes of good placebo adherence versus poor drug adherence.

Main Methods:

  • A fixed-effect meta-analysis was performed, incorporating data from eight randomized clinical trials.
  • The study evaluated the association between adherence to placebo and CV mortality rates.

Main Results:

  • Good adherence to placebo treatment was associated with a statistically significant reduction in CV mortality.
  • The odds ratio for CV mortality with good placebo adherence compared to poor drug adherence was 0.68 (95% CI 0.60-0.77).

Conclusions:

  • Adherence to placebo demonstrates a beneficial effect in lowering CV mortality.
  • The findings suggest that the impact of adherence on CV mortality may be independent of the pharmacological effects of the prescribed drug.
Abstract

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