Cited by 110Cannabis and Cannabinoid ResearchSubstance Abuse Treatment and OutcomesSmoking Behavior and Cessation

Dronabinol and lofexidine for cannabis use disorder: A randomized, double-blind, placebo-controlled trial.

Open access
Levin, Frances R., Mariani, John J., Pavlicova, Martina, Brooks, Daniel, Glass, Andrew, Mahony, Amy, Nunes, Edward V., Bisaga, Adam +4 more·2016·Drug and Alcohol Dependence

Abstract

Background Cannabis use disorder is associated with substantial morbidity and, after alcohol, is the most common drug bringing adolescents and adults into treatment. At present, there are no FDA-approved medications for cannabis use disorder. Combined pharmacologic interventions might be particularly useful in mitigating withdrawal symptoms and promoting abstinence.Objective The purpose of this study was to evaluate the safety and efficacy of dronabinol, a synthetic form of delta-9-tetrahydrocannabinol, a naturally occurring pharmacologically active component of marijuana, and lofexidine, an alpha-2 agonist, in treating cannabis dependence.Methods One hundred fifty six cannabis-dependent adults were enrolled and following a 1-week placebo lead-in phase 122 were randomized in a double-blind, placebo-controlled, 11-week trial. Participants were randomized to receive dronabinol 20mg three times a day and lofexidine 0.6 mg three times a day or placebo. Medications were maintained until the end of week eight, were then tapered over two weeks and patients were monitored off medications during the last study week. All participants received weekly motivational enhancement and relapse prevention therapy. Marijuana use was assessed using the timeline follow-back method.Results There was no significant difference between treatment groups in the proportion of participants who achieved 3 weeks of abstinence during the maintenance phase of the trial (27.9% for the medication group and 29.5% for the placebo group), although both groups showed a reduction over time.Conclusions Based on this treatment study, the combined intervention did not show promise as a treatment for cannabis use disorder.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.drugalcdep.2015.11.025

Cites

34 of 34 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Dronabinol produced no greater effects than placebo when combined with lofexidine for cannabis abstinence in a recent clinical trial.

    “dronabinol produced no greater effects than placebo when combined with lofexidine (an agonist of the α2-adrenergic receptor) for cannabis abstinence in a recent clinical trial 52.”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. American Psychiatric Association American Psychiatric Association (APA). Diagnostic and Statistical Manual of Mental Disorders 1994 American Psychiatric Association Washington, DC 4th Edition
  2. First MB Spitzer RL Gibbon M William JBW Structured Clinical Interview for DSM-IV Axis I Disorders- Patient Edition (SCID-I/P, Version 2.0) 1995 Biometrics Research Department, New York State Psychiatric Institute

Cited by

Sorted by citations

Authors
Levin, F. R., Mariani, J. J., Pavlicova, M., Brooks, D., Glass, A., Mahony, A., Nunes, E. V., Bisaga, A., Dakwar, E., Carpenter, K. M., Sullivan, M. A., & Choi, J. C.
Affiliations
New York State Psychiatric Institute (US)
Corresponding author
Levin, Frances R.
Venue
Drug and Alcohol Dependence
Publisher
Elsevier BV
Published
2016-02
Volume
159
Pages
53-60
ISSN
0376-8716 (ISSN-L)
OpenAlex
W2174050801
Cited by
109
References
34
Citations by year
2026: 7 · 2025: 4 · 2024: 8 · 2023: 10 · 2022: 18 · 2021: 15 · 2020: 10 · 2019: 9 · 2018: 21 · 2017: 5 · 2016: 1 · 2014: 1
FWCI
6.48
Type
journal article
Language
en
Open access
Locations
  • Drug and Alcohol Dependence (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • U.S. Public Health Service (K02 000465)
  • National Institute on Drug Abuse (K02DA000465, P50 DA-09236, P50DA009236, K24DA029647)
Topics
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
Keywords
cannabis use disorder, dronabinol, lofexidine, delta-9-tetrahydrocannabinol, alpha-2 adrenergic agonists, combined pharmacotherapy, abstinence, withdrawal symptoms, motivational enhancement therapy, relapse prevention, treatment efficacy
MeSH terms
Adolescent, Adult, Marijuana Abuse, Clonidine, Double-Blind Method, Female, Humans, Male, Middle Aged, Narcotic Antagonists, Substance Withdrawal Syndrome, Dronabinol, Drug Monitoring, Secondary Prevention, Cannabinoid Receptor Agonists, Craving

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review