Evidence mapPaperPMID 40803733Full record

ArticleBMJ open2025

Investigation of the combined effects of cannabidiol plus naltrexone on alcohol craving in alcohol dependence: study protocol of a phase II randomised, double-blind, placebo-controlled, parallel-group trial - ICONICplus Trial.

Sina Vetter, Julia Weinberg, Bettina C Thomas, Marietta Kirchner, Paul Thalmann, Christina Klose, Marlen Pfisterer, Torsten Kölsch, Selma Oesterle, Sabine Vollstaedt-Klein and 5 more

Registry-linked trialAbstract readClinical Trial Protocol
In one paragraph

Article in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06845124 (ICONICplus - Randomized, Double-blind, Placebo-controlled Trial to Investigate the Effects of Cannabidiol Plus Naltrexone on Cue-Induced Alcohol Craving in Alcohol Dependence), which is not on this map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT06845124 phase2recruitingnot on this map

ICONICplus - Randomized, Double-blind, Placebo-controlled Trial to Investigate the Effects of Cannabidiol Plus Naltrexone on Cue-Induced Alcohol Craving in Alcohol Dependence

TypeinterventionalSponsorCentral Institute of Mental Health, MannheimRan2025 to 2028Enrolled150ConditionsAlcohol Addiction, AlcoholismArmsCannabidiol capsules, Naltrexone (drug), Placebo
3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

15 authors.

Sina VetterDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany sina.vetter@zi-mannheim.de.ORCID http://orcid.org/0000-0002-9122-5197
Julia WeinbergDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Bettina C ThomasCoordination Centre for Clinical Trials (KKS), University Hospital Heidelberg, Heidelberg, Germany.
Marietta KirchnerInstitute of Medical Biometry (IMBI), University Hospital Heidelberg, Heidelberg, Germany.ORCID http://orcid.org/0000-0003-0294-2483
Paul ThalmannInstitute of Medical Biometry (IMBI), University Hospital Heidelberg, Heidelberg, Germany.
Christina KloseInstitute of Medical Biometry (IMBI), University Hospital Heidelberg, Heidelberg, Germany.
Marlen PfistererDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Torsten KölschDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Selma OesterleDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Sabine Vollstaedt-KleinDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Anne KoopmannDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Bernd LenzDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Falk KieferDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.
Tobias LinkFeuerlein Center on Translational Addiction Medicine (FCTS), Heidelberg University, Heidelberg, Germany.
Patrick BachDepartment of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Heidelberg University Medical Faculty, Mannheim, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAlcohol dependence (AD) is highly prevalent and has severe consequences on health and quality of life. However, the efficacy of approved pharmacotherapies such as naltrexone (NTX) remains limited, highlighting the need for novel pharmacotherapeutic approaches. Cannabidiol (CBD) is a promising candidate, which has shown potential to reduce craving and alcohol use by modulating brain circuits involved in craving and addiction. Preclinical studies suggest that CBD may enhance NTX's therapeutic effects. METHODS AND ANALYSIS: This is a three-armed, randomised, double-blind, placebo-controlled parallel group, multicentre phase II clinical trial. A total of 150 patients with AD will be randomised (1:1:1) to receive either 800 mg or 1200 mg CBD plus 50 mg oral NTX or placebo plus 50 mg oral NTX for 14 days. Alcohol craving will be assessed using the Obsessive Compulsive Drinking Scale (OCDS-G) where the primary endpoint is the change from baseline to the end of treatment. Secondary outcomes include craving during the entire study, quality of life, depressive symptoms, anxiety, patient-reported outcomes, neural brain activation, CBD plasma levels, time to relapse, alcohol use and treatment safety. For the comparison of each experimental group to the control group, a strata-adjusted (centre and baseline OCDS-G) van Elteren test is applied with adjustment for multiple testing by Bonferroni-Holm. ETHICS AND DISSEMINATION: The trial has been approved by the Ethics Committee and the competent authority (ID: B_03510). All participants will provide written informed consent. An independent Data and Safety Monitoring Board will monitor safety. This trial complies with national and international regulations. TRIAL REGISTRATION NUMBER: NCT06845124; EU Trial Number: 2024-518164-12-00.

Indexed as

AlcoholismCannabidiolCravingNaltrexoneNarcotic AntagonistsAdultClinical Trials, Phase II as TopicDouble-Blind MethodDrug Therapy, CombinationFemaleHumansMaleMiddle AgedMulticenter Studies as TopicQuality of LifeRandomized Controlled Trials as TopicCannabidiolNaltrexoneNarcotic AntagonistsCLINICAL PHARMACOLOGYPSYCHIATRYSubstance misuse

Identifiers

PMID40803733
PMCPMC12352239

What Socratic holds

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LicenceCC BY-NC
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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.