CBD did not reduce pain in hand osteoarthritis or psoriatic arthritis compared to placebo
In a rigorous trial of 136 patients, synthetic CBD (20-30 mg daily for 12 weeks) showed no clinically or statistically significant effect on pain in hand osteoarthritis or psoriatic arthritis compared to placebo.
Quick Facts
What This Study Found
Between-group difference in pain intensity at 12 weeks was 0.23 mm on a 0-100 mm scale (95% CI -9.41 to 9.90, p=0.96). 22% of CBD and 21% of placebo patients achieved clinically meaningful pain reduction (>30 mm). No effects on sleep, depression, anxiety, or pain catastrophizing.
Key Numbers
136 randomized, 129 in primary analysis. Pain difference: 0.23 mm (p=0.96). Response rate: 22% CBD vs 21% placebo. No significant effects on PSQI, HADS, PCS, or HAQ-DI.
How They Did This
Randomized, double-blind, placebo-controlled trial of 136 patients with hand osteoarthritis or psoriatic arthritis experiencing moderate pain despite therapy. Patients received synthetic CBD 20-30 mg or placebo daily for 12 weeks.
Why This Research Matters
Despite widespread use of CBD for pain, this is one of the few rigorous RCTs to test it in arthritis. The clearly negative result is important for consumers spending money on CBD for joint pain.
The Bigger Picture
This trial adds to a pattern of negative results for CBD as an analgesic in controlled trials, contrasting sharply with the positive perception among users. The gap between anecdotal reports and trial evidence continues to widen.
What This Study Doesn't Tell Us
CBD dose (20-30 mg) may have been too low. Only synthetic CBD was tested, which may differ from plant-derived products. Specific arthritis subtypes may not represent all chronic pain conditions.
Questions This Raises
- ?Would higher CBD doses produce different results?
- ?Does the form of CBD (synthetic vs plant-derived, oral vs topical) matter for pain?
- ?Are there arthritis subtypes more responsive to CBD?
Trust & Context
- Key Stat:
- Pain difference: 0.23 mm on 100 mm scale (p=0.96)
- Evidence Grade:
- Strong: randomized, double-blind, placebo-controlled trial with adequate sample size and standard validated outcomes.
- Study Age:
- Published in 2022.
- Original Title:
- Cannabidiol treatment in hand osteoarthritis and psoriatic arthritis: a randomized, double-blind, placebo-controlled trial.
- Published In:
- Pain, 163(6), 1206-1214 (2022)
- Authors:
- Vela, Jonathan, Dreyer, Lene, Petersen, Kristian Kjær, Arendt-Nielsen, Lars, Duch, Kirsten Skjærbæk, Kristensen, Salome
- Database ID:
- RTHC-04274
Evidence Hierarchy
Participants are randomly assigned to treatment or placebo groups to test cause and effect.
What do these levels mean? →Frequently Asked Questions
Did CBD help with pain at all?
No. The difference between CBD and placebo was 0.23 mm on a 100 mm pain scale, which is essentially zero. Similar proportions of patients in both groups experienced meaningful pain relief (22% vs 21%).
Could the dose have been too low?
Possibly. The study used 20-30 mg of synthetic CBD daily. Some CBD products on the market contain much higher doses, though whether higher doses would be effective remains untested in this condition.
Does this mean CBD does not work for any pain?
This trial tested specific arthritis conditions at specific doses. Results may not generalize to all pain types. However, the International Association for the Study of Pain has noted a general lack of evidence for CBD as an analgesic.
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Cite This Study
https://rethinkthc.com/research/RTHC-04274APA
Vela, Jonathan; Dreyer, Lene; Petersen, Kristian Kjær; Arendt-Nielsen, Lars; Duch, Kirsten Skjærbæk; Kristensen, Salome. (2022). Cannabidiol treatment in hand osteoarthritis and psoriatic arthritis: a randomized, double-blind, placebo-controlled trial.. Pain, 163(6), 1206-1214. https://doi.org/10.1097/j.pain.0000000000002466
MLA
Vela, Jonathan, et al. "Cannabidiol treatment in hand osteoarthritis and psoriatic arthritis: a randomized, double-blind, placebo-controlled trial.." Pain, 2022. https://doi.org/10.1097/j.pain.0000000000002466
RethinkTHC
RethinkTHC Research Database. "Cannabidiol treatment in hand osteoarthritis and psoriatic a..." RTHC-04274. Retrieved from https://rethinkthc.com/research/vela-2022-cannabidiol-treatment-in-hand
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkTHC research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.