Research study · Clinical Orthopaedics & Related Research · 2025
CORR Insights®: Does Cannabis-based Medicine Improve Pain and Sleep Quality in Patients With Traumatic Brachial Plexus Injuries? A Triple-blind, Crossover, Randomized Controlled Trial
Verified on PubMed Oxford CEBM Level 1B: Randomized Controlled Trial
A 2025 randomized controlled trial in Clinical Orthopaedics & Related Research tested cannabis in pain. It made no difference. Adding cannabis drops to standard medical care did not provide any meaningful relief for nerve pain or improve sleep quality compared to the dummy substance. This commentary reviews strong evidence showing that cannabis drops do not.
In plain language
Study overview
Researchers evaluated whether adding plant-derived cannabis drops to standard medical treatment would improve chronic nerve pain and sleep for adult men who suffered severe shoulder and arm nerve trauma. The study used a rigorous design where participants received either cannabis or a dummy substance for two weeks before switching treatments.
Findings
It made no difference. Adding cannabis drops to standard medical care did not provide any meaningful relief for nerve pain or improve sleep quality compared to the dummy substance.
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The deeper readScientific analysis
This is a commentary on the article by Kittithamvongs et al. exploring the use of cannabis-based medicine as an adjuvant to multimodal drug therapy in the setting of neuropathic pain related to severe traumatic brachial plexus injuries. The commentary discusses the methodology and findings of the triple-blind, crossover, randomized controlled trial involving 28 matched male patients who received cannabis drops versus placebo. The study found no clinically important benefit of cannabis-based treatment as an adjuvant to standard multimodal drug therapy for this specific patient population.
The paper
Citation
Hoffmeyer P CORR Insights®: Does Cannabis-based Medicine Improve Pain and Sleep Quality in Patients With Traumatic Brachial Plexus Injuries? A Triple-blind, Crossover, Randomized Controlled Trial. Clinical Orthopaedics & Related Research (2025). PubMed 39330963 · DOI
Limitations the authors noted
The evaluated study focused on one specific injury group consisting exclusively of male patients. The duration of the intervention periods in the crossover design was relatively short at 14 days.
In practice
Why this matters
This commentary reviews strong evidence showing that cannabis drops do not help a specific type of severe nerve injury when added to standard medications. It reminds readers that while cannabis is studied for many conditions, it is not universally effective for all types of chronic pain. Future research needs to explore different patient groups, varying formulas, and alternative dosing strategies to see if other populations might respond differently.
Frequently asked questions
Clinical Questions & Answers
What were the primary clinical findings regarding Cannabis and Insomnia?
It made no difference. Adding cannabis drops to standard medical care did not provide any meaningful relief for nerve pain or improve sleep quality compared to the dummy substance.
What study limitations or clinical safeguards should patients keep in mind?
The evaluated study focused on one specific injury group consisting exclusively of male patients. The duration of the intervention periods in the crossover design was relatively short at 14 days.
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Condition: Insomnia Condition: Pain Condition: Sleep Topic: Cannabis
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Reviewed by Dr. Caplan on October 26, 2026.
This page is general education about a published study. It is not medical advice and does not create a doctor-patient relationship. For care specific to you, book a consultation.