PRIMARY STUDY

Placebo Response and Media Attention in Randomized Clinical Trials Assessing Cannabis-Based Therapies for Pain: A Systematic Review and Meta-analysis

Key Findings:  When looking at randomized clinical trials on the effects of cannabinoids compared with placebo for treating pain, this analysis finds that placebo contributed significantly to pain reduction. Theories as to why include the media attention and preconceived opinions on the potential pain-relieving effects of cannabinoids.

Type of Study:  Clinical Meta-analysis

Study Sample Size:  1459

Study Result:  Inconclusive

Research Location(s):  Sweden

Year of Pub:  2022


Cannabinoids Studied:  Cannabidiol (CBD), Tetrahydrocannabinol (THC), Pharma THC, Pharma THC:CBD

Phytocannabinoid Source:  Unspecified

Chemotype:  Chemotype I, Chemotype II

Route of Administration:  Inhalation, Oral (Ingestion), Sublingual/Oromucosal




Citation:  Gedin F, et al. Placebo Response and Media Attention in Randomized Clinical Trials Assessing Cannabis-Based Therapies for Pain: A Systematic Review and Meta-analysis. JAMA Netw Open. 2022; 5:e2243848. doi: 10.1001/jamanetworkopen.2022.43848

Authors:  Gedin F, Blomé S, Pontén M, Lalouni M, Fust J, Raquette A, Vadenmark Lundquist V, Thompson WH, Jensen K