Placebo, usual care and wait-list interventions for all mental health disorders

Our objectives are to assess the beneficial effects and adverse events of placebos, usual care, and wait-list interventions for all mental health disorders.

There are three research questions: What are the beneficial effects and adverse events of:

  1. pharmacological, psychological, and physical placebos versus no-treatment or wait-list interventions;
  2. usual care versus no-treatment or wait-list interventions; and
  3. wait-list versus no-treatment interventions?

This is a protocol.

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