Could CBD help curb alcohol cravings? new trial investigates
NCT ID NCT06845124
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This Phase 2 trial tests whether adding cannabidiol (CBD) to standard naltrexone treatment can reduce alcohol cravings in people with alcohol addiction. 150 participants will receive either a high or low dose of CBD plus naltrexone, or a placebo plus naltrexone, for 14 days. The study measures changes in craving scores and tracks outcomes for up to 6 months.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- cannabidiol (CBD) plus naltrexone
- What this could lead to
- If successful, this could lead to a new treatment option that reduces alcohol cravings and helps prevent relapse in people with alcohol addiction.
- What could go wrong
- This is an early Phase 2 trial with only 150 participants, so results may not apply to everyone. The treatment is short-term (14 days), and long-term effects or benefits are unknown.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 2
Tests whether the treatment actually works, and watches for side effects, in a larger group.
- Participants
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About 150 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jul 2025
- Expected to finish
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Sep 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Age between 18 and 70 years * Patients meeting the diagnosis of an alcohol dependence according to the ICD-10 * Patients reporting alcohol craving as symptom of AD according to the ICD10 symptom definition * Ability of subject to understand character and individual consequences of the clinical trial * Written informed consent (must be available before enrollment in the study) * Consent to random assignment * For women with childbearing potential (WOCBP) and males with partners with CBP, use of a highly effective birth control method until one month after last IMP administration (see Appendix 1) and negative pregnancy test Exclusion Criteria: * Current psychotic or bipolar disorder or current severe depressive episode with suicidal ideations * Current treatment with any of the following substances: Any investigational medicinal product, Opioid-containing Analgesics, Anti-obesity drugs, Anticonvulsants, Opioid-containing Antidiarrheal Agents, Antineoplastics, Antipsychotics (exception: episodic use of melperone, prothipendyl, pipamperone, promethazine and quetiapine are allowed), Antidepressants (exception: allowed, when being taken in stable dose for a minimum of 14 days prior to enrolment and/or doxepine in low doses \[max. 75mg daily\]), Opioid-containing Cough/cold agents, Systemical Steroids, Other anti-craving (e.g. Acamprosate) or aversive medication (e.g. disulfiram), THC- or CBD-containing medication, Antiretroviral medication (e.g., Efavirenz), Xanthines (e.g., Theophylline), General anesthetics (e.g., propofol), Hypericum perforatum, Antibiotics (e.g., Rifampin, Clarithromycin, Erythromycin) * Positive drug screening (amphetamines/ecstasy, opiates, cocaine, barbiturates) * Pregnancy, lactation or breastfeeding * Current severe somatic comorbidities: severe liver cirrhosis \[CHILD B or C\] or epilepsy determined by medical history * Patients with elevated transaminase levels (AST or ALT) above three times the upper limit normal (ULN) value with elevated bilirubin levels above twice the ULN value * History of hypersensitivity to the investigational medicinal product CBD and/or Naltrexone (trade names: Adepend, Naltrexon-Hcl neuraxpharm, Naltrexonhydrochlorid Accord) or to any drug with similar chemical structure or to any excipient present in the pharmaceutical form of the investigational medicinal product CBD and/or Naltrexone * Participation in other clinical trials or observation period of competing clinical trials, respectively. * Acute suicidal tendency or acute endangerment of self and others
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Central Institute of Mental Health
RECRUITINGMannheim, 68159, Germany
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Psychiatric Centre North Baden (PZN)
NOT_YET_RECRUITINGWiesloch, Baden-Wurttemberg, 69168, Germany
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Other studies related to the condition(s) this trial covers.
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- Zapping the brain to fight alcoholism: a new hope?
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- Alcohol and cirrhosis: can a quick test spot brain problems?
- Virtual reality with alcohol smells could unlock craving triggers