Protocol Number: 08-AA-0125
People between 21 and 50 years of age who are right-handed, alcohol-dependent, and have at least one family member with a history of alcoholism, may be eligible for this study. Participants are admitted to the NIH Clinical Center for 1 month for the following procedures: Screening -Medical history, alcohol-use history and family history of alcoholism -Physical examination, psychological tests and blood tests -Medicine to lessen alcohol withdrawal symptoms, if necessary Days 1-7 -Alcohol detoxification -Medical and psychological evaluations -Assignment to naltrexone or placebo group Days 7 through 28 -Drug treatment: Take naltrexone or placebo capsule every morning -Additional alcohol-dependence treatment: Cognitive and behavioral therapies and participation in self-help groups, such as Alcoholics Anonymous -Weekly questionnaires to measure mood and desire for alcohol -Blood tests -Alcohol craving stimulation test (day 7): Subjects handle and sniff water and then their favorite alcoholic beverage. They then rate their urge to drink alcohol and their level of anxiety and their heart rate is measured. -Alcohol infusion test (day 9): Subjects have an MRI scan during infusion through a vein of saline (salt water), followed by infusion of alcohol. For this test, a catheter (plastic tube) is placed in a vein in each arm, one for administering the saline and then alcohol; the other for drawing blood samples to measure blood alcohol level and body chemistries. Before, during and after the infusion, subjects are asked to respond to questions about their feelings, cravings and mood changes. Follow-up Subjects are asked to participate in a 3-month outpatient assessment program involving five outpatient visits (at 1, 2, 4, 8 and 12 weeks after discharge). At each visit, they fill out questionnaires and to take a breathalyzer test and blood and urine tests for drugs. They may continue naltrexone therapy and weekly group therapy sessions during this time. Subjects who do not participate in the assessment program are contacted at home by phone once a week for 1 month and then every other week for the next 2 months to monitor alcohol abstinence.
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National Institutes of Health Clinical Center
Bethesda, Maryland 20892. Last update: 01/13/2009
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