NCT05299944

Brief Summary

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.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
126

participants targeted

Target at P75+ for phase_2

Timeline
Completed

Started Mar 2022

Typical duration for phase_2

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 22, 2022

Completed
14 days until next milestone

Study Start

First participant enrolled

March 8, 2022

Completed
21 days until next milestone

First Posted

Study publicly available on registry

March 29, 2022

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 29, 2025

Completed
21 days until next milestone

Study Completion

Last participant's last visit for all outcomes

August 19, 2025

Completed
Last Updated

December 12, 2025

Status Verified

December 1, 2025

Enrollment Period

3.4 years

First QC Date

February 22, 2022

Last Update Submit

December 10, 2025

Conditions

Keywords

OpioidsPainCannabidiolCBDCannabis

Outcome Measures

Primary Outcomes (3)

  • Reduction in pain medication use

    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.

    0-12 Weeks

  • Reduction in THC use

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

    0-12 Weeks

  • Reduction in pain

    -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.

    0-12 Weeks

Secondary Outcomes (7)

  • Change in opioid craving

    0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

  • Change in inflammation

    0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

  • Change in Anandamide (AEA)

    0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

  • Change in quality of life

    0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

  • Change in self-reported cognitive function

    0-6 Weeks, 6-12 Weeks, 0-12 Weeks, 0-16 Weeks

  • +2 more secondary outcomes

Study Arms (3)

Full-spectrum Cannabidiol

ACTIVE COMPARATOR

210mg/day of full-spectrum cannabidiol, containing less than 0.3%THC.

Drug: Cannabidiol

Broad-spectrum Cannabidiol

ACTIVE COMPARATOR

210mg/day of broad-spectrum cannabidiol, containing 0%THC.

Drug: Cannabidiol

Hemp Seed Oil Placebo

PLACEBO COMPARATOR

210mg/day of hemp-seed oil with no cannabinoids present.

Drug: Placebo

Interventions

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.

Also known as: CBD
Broad-spectrum CannabidiolFull-spectrum Cannabidiol

Placebo arm

Hemp Seed Oil Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

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

You may not qualify if:

  • 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 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Colorado - Anschutz Medical Campus

Aurora, Colorado, 80045, United States

Location

University of Colorado Denver

Aurora, Colorado, 80045, United States

Location

MeSH Terms

Conditions

Opioid-Related DisordersPainMarijuana Abuse

Interventions

Cannabidiol

Condition Hierarchy (Ancestors)

Narcotic-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental DisordersNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

CannabinoidsTerpenesHydrocarbonsOrganic Chemicals

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 22, 2022

First Posted

March 29, 2022

Study Start

March 8, 2022

Primary Completion

July 29, 2025

Study Completion

August 19, 2025

Last Updated

December 12, 2025

Record last verified: 2025-12

Locations