- PMID: 38951902
- DOI: 10.1186/s12906-024-04558-3
Abstract
Background: Chronic pain affects over 100 million Americans, with a disproportionately high number being Veterans. Chronic pain is often difficult to treat and responds variably to medications, with many providing minimal relief or having adverse side effects that preclude use. Cannabidiol (CBD) has emerged as a potential treatment for chronic pain, yet research in this area remains limited, with few studies examining CBD’s analgesic potential. Because Veterans have a high need for improved pain care, we designed a clinical trial to investigate CBD’s effectiveness in managing chronic pain symptoms among Veterans. We aim to determine whether CBD oral solution compared to placebo study medication is associated with greater improvement in the Patient Global Impression of Change (PGIC).
Methods: We designed a randomized, double-blind, placebo-controlled, pragmatic clinical trial with 468 participants. Participants will be randomly assigned in a 1:1 ratio to receive either placebo or a CBD oral solution over a 4-week period. The trial is remote via a smartphone app and by shipping study materials, including study medication, to participants. We will compare the difference in PGIC between the CBD and placebo group after four weeks and impacts on secondary outcomes (e.g., pain severity, pain interference, anxiety, suicide ideation, and sleep disturbance).
Discussion: Once complete, this trial will be among the largest to date investigating the efficacy of CBD for chronic pain. Findings from this clinical trial will contribute to a greater knowledge of CBD’s analgesic potential and guide further research. Given the relative availability of CBD, our findings will help elucidate the potential of an accessible option for helping to manage chronic pain among Veterans.
Trial registration: This protocol is registered at clinicaltrials.gov under study number NCT06213233.
Keywords: Analgesic, Cannabinoids, Cannabis, Clinical Trial, Community-engaged research, Marijuana, Pain, Randomized Controlled Trial, Veteran health
© 2024. The Author(s).
References
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- Institute of Medicine: Relieving Pain in America: a blueprint for transforming Prevention, Care, Education, and Research. In. Washington, DC: National Academies; 2011.
- Nahin RL, Feinberg T, Kapos FP, Terman GW. Estimated Rates of Incident and Persistent Chronic Pain among US adults, 2019–2020. JAMA Netw Open. 2023;6(5):e2313563. – PMC – DOI – PubMed
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Grants and funding
- VMR2022-03/State of Michigan Veteran Marijuana Research Grant Program
- VMR2022-03/State of Michigan Veteran Marijuana Research Grant Program
- VMR2022-03/State of Michigan Veteran Marijuana Research Grant Program
- VMR2022-03/State of Michigan Veteran Marijuana Research Grant Program
- VMR2022-03/State of Michigan Veteran Marijuana Research Grant Program