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Not yet taking people in United StatesPhase 1

Cannabis Effects on Opioid Self-Administration

Key facts

Who runs it
Shanna Babalonis, PhD
Where
Lexington, United StatesSee the site
Trial code
Status
Not yet recruiting
Phase
Phase 1
People taking part
30 people, planned
Starts
30 Nov 2026
Expected to end
30 Jul 2031
Type of study
Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
Treatments tested
  • Cannabis
  • Placebo Cannabis
  • Intranasal Opioid Agonist
  • Oral Opioid Agonist
Record updated
14 October 2026

Who can take part

Age
18 years to 55 years
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 4 criteriaShow less

Who can take part

  • Participants with moderate to severe opioid use disorder who experience opioid withdrawal
  • No allergies or adverse reactions to cannabis or opioids
  • Willing to stay inpatient at the UK Hospital research center for approx. 6 weeks

Who cannot take part

  • Individuals seeking treatment for opioid use disorder

Check if you might fit

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 18 and 55 years old?

Where in United States

  • University of Kentucky Center on Drug and Alcohol ResearchLexington, United StatesContact: Paul NuzzoNot yet recruiting

About the trial

What the trial wants to find out

The study will enroll participants with opioid use disorder and participants will reside at the University of Kentucky Hospital for this 6-week inpatient trial. During this time, double-blind doses of cannabis and opioids will be administered. The goal of the project is to determine if cannabis can alter the drive/desire to take opioids.

The 2 groups in the trial

  • Active CannabisTreatment being tested

    Participants receive active cannabis three times daily for approximately 16 days during one crossover treatment period. During this period, participants complete sample and self-administration sessions evaluating placebo and active intranasal opioid administration.

    Treatment: Cannabis, Intranasal Opioid Agonist, and Oral Opioid Agonist

  • Placebo CannabisPlacebo, for comparison

    Participants receive placebo cannabis three times daily for approximately 16 days during one crossover treatment period. During this period, participants complete sample and self-administration sessions evaluating placebo and active intranasal opioid administration.

    Treatment: Placebo Cannabis, Intranasal Opioid Agonist, and Oral Opioid Agonist

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Impact of Cannabis on Opioid Self-Administration
Fit questions
Built from NCT07668635, who can take part
Record updated
14 October 2026