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Papers of the Week
Placebo analgesia in physical and psychological interventions: Systematic review and meta-analysis of three-armed trials.
Authors
Hohenschurz-Schmidt D, Phalip J, Chan J, Gauhe G, Soliman N, Vollert J, Lunde SJ, Vase LAbstract
The magnitude of placebo effects from physical and psychological ‘sham’ is unknown but could impact efficacy trials and treatment understanding. To quantify placebo effects, this systematic review of three-armed randomised controlled trials (RCTs) of physical and psychological interventions for pain compared outcomes in ‘sham’ control intervention and non-exposure arms.