Working... Menu

The Effects of Treatment With Naltrexone in Alcohol and Cannabis-dependent Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01560013
Recruitment Status : Unknown
Verified March 2012 by Tel-Aviv Sourasky Medical Center.
Recruitment status was:  Not yet recruiting
First Posted : March 21, 2012
Last Update Posted : March 21, 2012
Ministry of Health, Israel
Information provided by (Responsible Party):
Tel-Aviv Sourasky Medical Center

Brief Summary:
Alcohol dependence is a major health problem worldwide and recently in Israel and it has major health care costs. Cannabis dependence is also a major health issue and many cannabis users find it difficult to quit. Similar to dependence on heavy drugs, alcohol and cannabis-dependent patients find it difficult to quit drinking and smoking cannabis and they relapse to drinking alcohol and using cannabis during treatment. Craving for alcohol and cannabis and withdrawal during detoxification are major factors for relapse to drinking and using cannabis. The cue-exposure and priming paradigms have been used in order to induce craving for alcohol and cannabis in the laboratory. Several studies have delineated the brain mechanisms responsible for cue-induced craving for alcohol using functional Magnetic Resonance Imaging (fMRI), a method that can be useful in monitoring progress of treatment. A proven useful medication for treatment of alcohol dependence is the opiate antagonist naltrexone commonly used for treatment of opiate dependence. We have found that cannabis-dependent patients in treatment for cannabis dependence who also were heavy users of alcohol have dropped early from treatment.

Condition or disease Intervention/treatment Phase
Alcohol-dependence Drug: Naltrexone Not Applicable

Detailed Description:
We propose to use naltexone to reduce craving for alcohol and cannabis in alcohol and cannabis-dependent patients. We also propose to use established techniques of priming and cue-exposure for alcoholic drinks and cannabis together with measures of [18F] Fluorodeoxyglucose (FDG) in Positron Emission Tomography (PET) imaging in 24 alcohol and cannabis-dependent patients before and after 35 day treatment with naltrexone. We predict that in those who will be successful in quitting alcohol drinking and using cannabis there would be a reduction in alcohol and cannabis cue-induced brain activity in the meso-limbic reward circuit that is responsible for craving for alcohol and cannabis.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 24 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Brain Imaging Study on the Effects of Treatment With Naltrexone on Cue-induced Craving and Brain's Metabolic Changes in Alcohol and Cannabis-dependent Patients
Study Start Date : October 2012
Estimated Primary Completion Date : October 2014
Estimated Study Completion Date : October 2014

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Naltrexone
Treatment with naltrexone for two months together with psycho-social support
Drug: Naltrexone
Naltrexone, oral 50 mg per day.
Other Name: Revia

Primary Outcome Measures :
  1. Verified abstinence from alcohol [ Time Frame: 2 months ]
    Patients will be tested for alcohol at the end of treatment after 2 months

Secondary Outcome Measures :
  1. Changes in subjective responses to alcohol-cue reactivity and brain's metabolic rates [ Time Frame: At baseline and after treatment ]
    Alcohol and cannabis-dependent patients undergoing treatment with naltrexone will be assessed before and after treatment by the alcohol-cue exposure together with measures of the brain's metabolism using [18F] Fluoro-dioxyglucose (FDG) as the radiotracer in Positron Emission Tomography (PET) and subjective craving responses to the cues.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   22 Years to 64 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Alcohol dependent patients both males and females age 22-64

Exclusion Criteria:

  • subjects who are diagnosed as suffering from psychotic illness according to DSM-IV (Axis 1) (American Psychiatric Association, 1994) or with a history of CNS disease, a history of infection that might affect CNS (HIV, syphilis, cytomegalovirus, herpes), a history of head injury with loss of consciousness, history of other substance abuse taking psychoactive medications (shown by urine test). Abnormal liver test results (150% above average) will be excluded. Pregnancy is also an exclusion criterion, as radiation exposure is risky for the fetus.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01560013

Layout table for location contacts
Contact: Aviv M Weinstein, Ph.D 97236973536
Contact: Einat Even-Sapir, MD Ph.D 97236973536

Layout table for location information
Dept. of Nuclear Medicine, TASMC Not yet recruiting
Tel Aviv, Israel, 64239
Contact: Aviv M Weinstein, Ph.D    97236973536   
Contact: Einat Even-Sapir, MD Ph.D    97236973536   
Principal Investigator: Aviv M Weinstein, Ph.D         
Principal Investigator: Einat Even-Sapir, MD Ph.D         
Sub-Investigator: Isachar Herman, MD         
Sponsors and Collaborators
Tel-Aviv Sourasky Medical Center
Ministry of Health, Israel
Layout table for investigator information
Principal Investigator: Aviv M Weinstein TASMC Israel

Layout table for additonal information
Responsible Party: Tel-Aviv Sourasky Medical Center Identifier: NCT01560013     History of Changes
Other Study ID Numbers: 112-10-TLV
First Posted: March 21, 2012    Key Record Dates
Last Update Posted: March 21, 2012
Last Verified: March 2012

Keywords provided by Tel-Aviv Sourasky Medical Center:
cue reactivity

Additional relevant MeSH terms:
Layout table for MeSH terms
Alcohol-Related Disorders
Substance-Related Disorders
Chemically-Induced Disorders
Mental Disorders
Anti-Infective Agents, Local
Anti-Infective Agents
Central Nervous System Depressants
Physiological Effects of Drugs
Alcohol Deterrents
Narcotic Antagonists
Sensory System Agents
Peripheral Nervous System Agents