Skip to main content
OpenTrials
Completed

NCT Number: NCT05299944

Reducing Pain and Opioid Use With CBD

This is a double-blind, placebo-controlled, parallel group study designed to assess the tolerability and efficacy of fsCBD and bsCBD, compared to a placebo control, to reduce opioid use, anxiety, and pain and improve sleep and cognitive function. If eligible for the study, subjects will be randomized to receive one of the conditions for 12 weeks.

Completed

Looking for future studies?

Notify Me

Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

University of Colorado - Anschutz Medical Campus, Aurora, Colorado, United States

Loading trial locations.

About this study

To better understand the effects of hemp-derived CBD with and without a small amount of THC, the investigators propose a Phase II randomized clinical trial (RCT) to examine the safety, tolerability, and clinical effects of Full Spectrum CBD (fsCBD, contains less than 0.3% THC) vs. Broad Spectrum CBD (bsCBD, does not contain THC), vs. a matching placebo in a population of opioid users.

This is a double-blind, placebo-controlled, parallel group study designed to assess the tolerability and efficacy of fsCBD and bsCBD, compared to a placebo control, to reduce opioid use, anxiety, and pain and improve sleep and cognitive function. If eligible for the study, subjects will be randomized to receive one of the conditions for 12 weeks.

Study visits will take place both in-person and via Zoom/online. Study participants will attend four in-person visits at the University of Colorado Anschutz at Week 0 (Baseline Medical Director Screen and Medication Dispense), Week 6, and Week 12. Research staff will meet with participants over Zoom during their Week 1 visit and will be contacted weekly during the 12-week study period. Following the Week 1 Zoom visit, participants will have the option to receive the survey link via email for Weeks 2-5 and 7-11 in lieu of meeting with a research team member over Zoom to allow more flexibility in time to complete the study surveys (participants can complete surveys at their convenience within a 3-business day period). In Week 16, approximately 4 weeks after the end of dosing, a final follow-up Zoom interview will occur.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Self-reported desire or intent to use cannabidiol to reduce pain and/or opioid use
  • Must be 18 years of age or older.

Exclusion criteria

  • Self-reported recreational drug use (other than opioids) in the past 30 days or failed urine screen for cocaine, benzodiazepines (if not prescribed), MDMA, sedatives, or methamphetamine;
  • Self-reported current moderate/severe alcohol use, or severe opioid use disorder on the DSM V (unless patient is medically stable and approved by personal physician as well as the Medical Director for the study);
  • Actively seeking or in treatment for or history of any substance use disorder, other than opioid use disorder;
  • Currently being treated for or diagnosed with a moderate, severe, or unstable medical illness (e.g., renal disease, liver disease, cardiovascular disease). If the person has had a recent operation, they must be cleared for study participation by their surgeon or primary care doctor. Study inclusion/exclusion will be evaluated by our medical director when there are questions about applying criteria;
  • Currently taking any of the following medications:
  • Those known to have a major interaction with Epidiolex (buprenorphine, leflunomide, levomethadyl acetate, lomitapide, mipomersen, pexidartinib, propoxyphene, sodium oxybate, and/or teriflunomide)
  • Acute treatment with any antiepileptic medications (e.g. clobazam, sodium valproate)
  • Report being treated for bipolar disorder, schizophrenia, dissociative disorders, eating disorders, or any other psychotic or organic mental disorder in the last year.
  • Females of childbearing potential who are pregnant, nursing, or who are not using a reliable form of birth control.
  • Endorsing item 2 on the C-SSRS measure of suicide risk.
  • Currently using CBD for medical reasons.

Treatment and study plan

Cannabidiol

Drug

The current study will directly test the hypothesis that a moderate dose of CBD leads to a reduction in opioid consumption, opioid craving, pain, peripheral markers of inflammation, and anxiety, as well as changes in sleep, AEA, and cognition.

Other names: CBD

Placebo

Drug

Placebo arm

Primary outcomes

  1. Reduction in pain medication use

    Time frame: 0-12 Weeks

    The Time Line Follow Back is a calendar-assisted measure that can be used to assess pain medication use. The investigators will use this measure to create the pain medication use variable. For opioids users, changes in opioid use will be assessed. For non-opioid users, non-opioid pain medication will be assessed.

  2. Reduction in THC use

    Time frame: 0-12 Weeks

    The Timeline Follow-back will be used to quantify and frequency of THC use.

  3. Reduction in pain

    Time frame: 0-12 Weeks

    -The PROMIS Numeric Rating Scale v1.0 - Pain Intensity - 1a will be used to measure pain intensity with a one question item over the past 7 days. Higher scores indicate more pain. The PROMIS Short Form v1.1 - Pain Interference - 6b rates pain on a scale from 1 (not at all) to 5 (very much), as it refers to the degree to which pain limits or interferes with subjects' physical, mental, and social activities. Higher scores indicate greater pain interference.

Secondary outcomes

  1. Change in opioid craving

    Time frame: 0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

    The Opioid Craving Scale will be used to assess changes in craving over time. This scale has three questions assessed using a 10-pt likert scale. Higher scores (0-30) indicate greater opioid craving.

  2. Change in inflammation

    Time frame: 0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

    Differences in inflammatory markers (e.g. IL-6) will be assessed over time as a moderating factor.

  3. Change in Anandamide (AEA)

    Time frame: 0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

    Differences in AEA will be assessed over time as a moderating factor.

  4. Change in quality of life

    Time frame: 0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

    Changes in subjective quality of life will be assessed using the PROMIS Global-10 Short Form). Scores range from 10-50, with higher scores indicating poorer quality of life.

  5. Change in self-reported cognitive function

    Time frame: 0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

    Changes in self-reported cognitive function will be assessed using the FACT-Cog. There are 37 questions on a 5-pt likert scale with higher scores indicating poorer cognition.

  6. Reduction in anxiety

    Time frame: 0-12 Weeks

    The Depression Anxiety Stress Scale measures the severity of anxiety symptoms. Possible scores range from 0 to 41 with higher scores indicating a worse outcome/more severe symptoms of anxiety.

  7. Reduction in sleep disturbance / fatigue

    Time frame: 0-12 Weeks

    • The PROMIS Short Form v1.0 - Sleep Disturbance - 4A measure the severity of sleep disturbances. Possible scores range from 0 to 4 with lower scores indicating a worse outcome/more severe symptoms of sleep disturbance/fatigue.
    • The PROMIS Short Form v1.0 - Fatigue - 4a measures subject fatigue over the past 7 days on a 4 point scale, with higher scores indicating more fatigue.

Sponsors and collaborators

Lead sponsor

University of Colorado, Denver

Other

Registry information

Important dates

Study start
2022
Primary completion
2025
Study completion
2025
First posted
Mar 29, 2022
Registry last updated
Dec 12, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.