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Terminated Phase 2Phase 3 Interventional Results available

Combination of Dronabinol and Clonidine for Cannabis Dependence in Patients With Schizophrenia

ClinicalTrials.gov ID: NCT01598896

Public ClinicalTrials.gov record NCT01598896. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 6, 2026, 3:17 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Cannabis use disorders are an important public health problem in the United States, but no effective pharmacotherapies are available to treat these disorders. People with schizophrenia are more likely than healthy people to abuse cannabis. Cannabis use may worsen clinical outcomes in this group, making the identification of pharmacotherapy to treat cannabis dependence in those with schizophrenia important. The investigators intend to test the combination of dronabinol, a cannabinoid agonist, and the α2-adrenergic agonist clonidine, for cannabis dependence in subjects with schizophrenia. The combination of dronabinol and clonidine may alleviate cannabis withdrawal symptoms while allowing treatment-seeking outpatients to benefit from medical management (MM) sessions when they are trying to stop using cannabis. The investigators propose to assess the relationship of dronabinol and clonidine, when added to MM, on cannabis use patterns in cannabis-dependent patients with schizophrenia. Hypothesis: The investigators predict that combination pharmacotherapy of dronabinol and clonidine will significantly reduce cannabis use compared to those receiving placebo.

Study identification

NCT ID
NCT01598896
Recruitment status
Terminated
Study type
Interventional
Phase
Phase 2, Phase 3
Lead sponsor
Mclean Hospital
Other
Enrollment
12 participants

Conditions and interventions

Eligibility (public fields only)

Age range
18 Years to 45 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 30, 2012
Primary completion
Jul 31, 2017
Completion
Jul 31, 2017
Last update posted
Aug 28, 2018

2012 – 2017

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
McLean Hospital Belmont Massachusetts 02478

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01598896, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Aug 28, 2018 · Synced Sep 6, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT01598896 live on ClinicalTrials.gov.

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