- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04063384
Acute Alcohol Response In Bipolar Disorder: a fMRI Study (BACS)
Subjective Response to Alcohol and Associated Neural Systems in Bipolar Disorder
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
A total of 60 bipolar and healthy comparison subjects (n=30 per group, 21-26 years of age, 50% women, with no history of a moderate/severe AUD) will be recruited from the greater Austin area. Once recruited and enrolled, subjects will undergo detailed structured clinical evaluations to verify inclusion and exclusion criteria, comprehensive assessment of alcohol and other drug use history, and cognitive testing, followed by structural MRI assessments. Following standard beverage administration procedures, they will then complete measures of subjective response to alcohol and fMRI scans while under the influence of alcohol or a placebo condition (counter-balanced). For each participant the first beverage session assignment (whether the participant is given alcohol or the placebo beverage first) will be randomized. Alcohol and placebo sessions will occur within 3 days of each other. FMRI assessments will include a continuous performance task with emotional and neutral distractors (CPT-END) and a resting state scan.
For both the alcohol and the placebo beverage conditions, the protocol will be the same. The beverage administration sessions will occur in a private room at the University of Texas at Austin in the Imaging Research Center. The table in the testing room will be wiped down with alcohol prior to the participant's arrival (olfactory cue). Study staff will use an algorithm to calculate individual alcohol doses based on the participants' age, sex, height, and weight. Participants fast from food for 4 hours prior to their session. Before beginning consumption of their beverages, they will eat a weight-adjusted, 1 calorie per pound snack of pretzels. While participants eat their pretzels, study staff will mix beverages in front of participants. Vodka and placebo (decarbonated tonic water) will be stored in absolute vodka bottles, measured out, and combined with mixer in front of participants. Mixed drinks will be poured into glasses that have been sitting face down with rims soaking in vodka. Prior to giving the beverage to the participant, all drinks will get an alcohol floater (squirt of absolute vodka on top of the drink). Participants will be given 20 minutes to orally consume two beverages (10 minutes per beverage).
Following oral consumption and a 10 minute absorption period, breathalyzer tests will be conducted to identify a .06g% ascending limb breath alcohol concentration (BrAC). Self-report of subjective response to alcohol will be collected and participants will immediately enter the scanner and complete the fMRI scan (acquisition parameters are identical during alcohol and placebo conditions). BrAC will be tracked after the MRI scan and subjective response to alcohol collected again at peak BrAC and at descending BrAC of .06g%. Consistent with NIAAA guidelines for human alcohol studies, BrAC readings will continue every 30 minutes until participants are below 0.04% at which time they will be escorted home. During the placebo condition, participants will be given false BrAC readings. False BrAC readings given to participants during the placebo session will be based on the average BrACs we record during the alcohol sessions. The average time participants stay in the laboratory will be the same for the placebo and alcohol beverage conditions. Participants are debriefed after completing all sessions and the need for deception to ensure the placebo-controlled alcohol session will be explained.
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
Texas
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Austin, Texas, United States, 78712
- Recruiting
- University of Texas at Austin
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
Inclusion criteria for all participants:
- between 21 and 26 years of age
- having consumed at least 4 (men) or 3 (women) drinks on a single occasion over the last year
- euthymic at the time of study
Inclusion criteria for bipolar disorder participants:
- Meeting Diagnostic and Statistical Manual-5 Research Version (DSM-V-RV) diagnostic criteria for bipolar disorder, confirmed by structured interview
Exclusion Criteria:
For all subjects exclusion criteria include:
- history of significant medical illness, particularly if possible changes in cerebral tissue
- neurologic abnormality including significant head trauma (loss of consciousness of ≥5-min)
- full Scale intelligence quotient (IQ) <85
- contraindication to MRI scanning
- positive pregnancy test
- current cannabis use disorder>moderate
- history of severe AUDs
- scores > 15 on the alcohol Use Disorders Identification Test (AUDIT; part of phone screen)
- ever being in an abstinence-oriented treatment program for alcohol use
- reporting wanting to quit drinking but not being able to
- any medical, religious, or other reasons for not drinking alcohol
- history of heart attack, heart trouble, high blood pressure, diabetes, or liver disease
- an adverse reaction to alcoholic beverages
- reporting never consuming 4 (men) or 3 (women) or more drinks on a single occasion over the last year
- unwillingness to have a friend or family member drive them home after the alcohol administration sessions
- a past year substance use disorder (other than alcohol, cannabis, or nicotine)
Additional exclusion criteria for bipolar disorder participants:
- not taking medications for greater than or equal to 4 weeks (i.e. participants must be stable on medications)
Additional exclusion criteria for healthy comparison subjects also include:
- any prior psychiatric hospitalizations
- lifetime history of a neurodevelopmental disorder, affective disorder, psychotic disorder, eating disorder
- greater than 1 month of lifetime psychotropic medication. -
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Alcohol
Participants will be dosed to a 0.08g% blood alcohol concentration.
|
Participants will be provided alcohol during study visits and changes in behavior/neural activity after consuming alcohol will be examined.
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Placebo Comparator: Placebo
Participants will receive a low dose of alcohol (placebo condition).
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placebo beverage conditions.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in neural responses to emotional stimuli (fMRI: neural responses during alcohol session minus neural responses during placebo session)
Time Frame: baseline and up to 1 week
|
Neural responses to emotional stimuli during the alcohol and placebo sessions will be modeled.
Change in neural responses (alcohol minus placebo session) in regions of interest will be calculated.
Study participation to collect data (baseline clinical assessment, alcohol and placebo MRI sessions) should not take more than 1 week.
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baseline and up to 1 week
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Change in behavior (self-report surveys: alcohol session minus placebo session)
Time Frame: baseline and up to 1 week
|
Participants will fill out self-report surveys on how they feel when they arrive to their beverage administration sessions (alcohol and placebo).
They will then feel out the same self-report surveys on how intoxicated they feel during their beverage sessions (alcohol and placebo).
Changes in how intoxicated they feel will be calculated for both the alcohol and placebo condition.
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baseline and up to 1 week
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Drinking patterns
Time Frame: up to 3 months
|
Participants will complete self-report surveys describing their drinking pattern and a structured assessment (time line follow back) to assess recent quantity, duration, and frequency of drinking.
Correlations between this secondary measure and primary measures listed above will be explored.
|
up to 3 months
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Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- K01AA027573 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
IPD Sharing Time Frame
IPD Sharing Access Criteria
IPD Sharing Supporting Information Type
- SAP
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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