Yale School of Medicine

Research Studies at Yale

Research Studies at Yale

GABA Mechanisms Underlying the Vulnerability to Alcohol Dependence

For Patients For Researchers

Condition: Alcoholism

What is the purpose of this trial?

This Project will explore the hypothesis that individuals with a family history positive for alcohol dependence (without any current Axis I disorder, except nicotine dependence), experience an alteration in the reward "valence" (balance of positive and negative effects) of the GABAA receptor agonist barbiturate (thiopental) compared to family history negative age-matched subjects. Further, variation in genes involved in brain GABA function may influence the risk for alcoholism by altering a component of the discriminative stimulus effects of ethanol.


Dates: November 2005 -
Study Status: Recruiting

Who can participate?

Ages Eligible: 21 Years - 30 Years
Gender Eligible: Both
This trial accepts healthy volunteers

Inclusion Criteria:

1. Male and female between the ages of 21 and 30 years

2. medically and neurologically healthy on the basis of history, physical examination,
Electrocardiogram (EKG), screening laboratories

3. absence of any evidence of substance abuse (with the exception of nicotine
dependence) on the basis of history and drug and ethanol-free at the time of testing
based on urine toxicology and breath alcohol levels at screening and on each test
day.

Exclusion Criteria:

1. Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM-IV) Axis I
psychiatric and substance abuse or dependence diagnosis by history on psychiatric
evaluation that includes a structured diagnostic interview (SCID)

2. unwillingness to remain alcohol-free for three days prior to each test day;

3. for women, positive pregnancy test at screening or intention to engage in unprotected
sex during the study and

4. alcohol naive. For Family History Positive Subjects: 1) Biological father and another
first or second-degree biological relative with history of alcoholism by Family
History Assessment Module (FHAM) developed by COGA.

For Family History Negative Subjects: NO family history of alcoholism in any first or
second-degree relatives. Subjects must reliably report on three first-degree relatives.

Sponsor: Yale University

First Received: December 27, 2007 
Last Updated: Feb 07, 2009
Clinicaltrials.gov ID: NCT00611767
Study HIC # 0510000664

Condition: Alcoholism

Interventions: Drug: Thiopental;
Drug: Placebo

What is the purpose of this trial?

This Project will explore the hypothesis that individuals with a family history positive for alcohol dependence (without any current Axis I disorder, except nicotine dependence), experience an alteration in the reward "valence" (balance of positive and negative effects) of the GABAA receptor agonist barbiturate (thiopental) compared to family history negative age-matched subjects. Further, variation in genes involved in brain GABA function may influence the risk for alcoholism by altering a component of the discriminative stimulus effects of ethanol.


show additional information...

Dates: November 2005 -
Study Status: Recruiting

Who can participate?

Ages Eligible: 21 Years - 30 Years
Gender Eligible: Both

Inclusion Criteria:

1. Male and female between the ages of 21 and 30 years

2. medically and neurologically healthy on the basis of history, physical examination,
Electrocardiogram (EKG), screening laboratories

3. absence of any evidence of substance abuse (with the exception of nicotine
dependence) on the basis of history and drug and ethanol-free at the time of testing
based on urine toxicology and breath alcohol levels at screening and on each test
day.

Exclusion Criteria:

1. Diagnostic and Statistical Manual of Mental Disorders Fourth Edition (DSM-IV) Axis I
psychiatric and substance abuse or dependence diagnosis by history on psychiatric
evaluation that includes a structured diagnostic interview (SCID)

2. unwillingness to remain alcohol-free for three days prior to each test day;

3. for women, positive pregnancy test at screening or intention to engage in unprotected
sex during the study and

4. alcohol naive. For Family History Positive Subjects: 1) Biological father and another
first or second-degree biological relative with history of alcoholism by Family
History Assessment Module (FHAM) developed by COGA.

For Family History Negative Subjects: NO family history of alcoholism in any first or
second-degree relatives. Subjects must reliably report on three first-degree relatives.


Additional Location

Connecticut

Sponsor: Yale University

First Received: December 27, 2007 
Last Updated: Feb 07, 2009
Clinicaltrials.gov ID: NCT00611767
Study HIC # 0510000664

Participate in this trial

Yale Researcher

Petrakis, Ismene Leonida
Principal Investigator  

HIC # 0805003779