Sponsor:
University of Colorado, Denver
Code:
NCT05052541
Conditions
Back Pain
Neck Pain
Eligibility Criteria
Sex: All
Age: 21 - 70+
Healthy Volunteers: Not accepted
Interventions
THC/CBD
THC
Placebo
Brief summary:
Conditions
Back Pain
Neck Pain
Study ID
NCT05052541
Start date
Jan, 2026
Status verified date
Jan, 2026
Completion date
Jun, 2027
Anticipated
Primary completion date
Jun, 2027
Anticipated
Eligibility Criteria
Sex: All
Age: 21 - 70+
Healthy Volunteers: Not accepted
Enrollment
157 participants
Anticipated
Allocation
Randomized
Intervention Model
Crossover
Primary purpose
Treatment
Arms
experimental: Analgesia Arm: THC (tetrahydrocannabinol), then THC/CBD (cannabidiol), then Placebo
experimental: Analgesia Arm: THC, then Placebo, then THC/CBD
experimental: Analgesia Arm: THC/CBD, then THC, then Placebo
experimental: Analgesia Arm: THC/CBD, then Placebo, then THC
experimental: Analgesia Arm: Placebo, then THC, then THC/CBD
experimental: Analgesia Arm: Placebo, then THC/CBD, then THC
experimental: Reduction Arm: THC/CBD
placebo comparator: Reduction Arm: Placebo
Interventions
THC/CBD
THC
Placebo
Primary outcome measure
Central contacts
Locations
University of Colorado Anschutz Medical Campus
Recruiting
Aurora, Colorado, United States, 80045
Contacts
Principal Investigator:
Rachael Rzasa Lynn, MD
Sponsor
University of Colorado, Denver
Last update posted
Jan 23, 2026
Last verified
Jan, 2026
Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by University of Colorado, Denver on 2026-01-23.