ClinicalTrials.gg
Active, not recruitingNCT03467191Updated Feb 12, 2025

Behavioral Alcohol Responses (BAR) Study

An Early Phase 1 interventional study of Alcohol and Placebo in Alcohol Drinking, Alcohol Use Disorder and Alcohol Intoxication, sponsored by Carnegie Mellon University. Active, not recruiting at 1 site in United States. Open to participants aged 21 Years to 29 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-02-12.

Primary conditionAlcoholismRegistry: Alcohol DrinkingReclassifiedWhy we changed it
Registry
Alcohol Drinking — the first condition term the registry derived for this study.
ClinicalTrials.gg
Alcoholism
Why
  1. Alcohol Drinking is a broad heading, used only when no more specific condition is named.
  2. The study's listed conditions name Alcoholism.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by Carnegie Mellon University · Early Phase 1, Interventional, and Basic science

Phase
Early Phase 1
Study type
Interventional
Enrollment
782
Allocation
Randomized
Ages
21 Years to 29 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 19 studies testing ethanol in Alcoholism — 7 open to participants now, 9 under way, none of them phase 3. Ethanol · Alcoholism.

Enrollment
2nd of 19
782 · median 144
Started
2018
the only one that year
Phase 1
5 of 19
2 open now
Registered
9th of 19
by date
Lead sponsor
1 of 19
Carnegie Mellon University

Among the 19 studies testing ethanol in Alcoholism, this one is the 2nd largest by enrollment, is the only one that started in 2018, is one of 5 in phase 1, and was the 9th registered.

By phase

19 studies; the count open now beside each. This study's row is marked.

No phase7 · 2 open
Phase 26 · 3 open
Phase 1this study5 · 2 open
Phase 31 · 0 open

By the year they started

First in 2003; this study’s year is marked. 1 started in 2018.

Size and results

Median enrollment 144 across the 19 interventional studies. Of the 9 that completed or were terminated, 5 (56%) have results posted.

Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 19 studies testing ethanol in Alcoholism, or all of them as a file.
02

Study summary

This study aims to identify risk factors that prospectively predict alcohol problems in young adults.

Read the detailed description

The vast majority of alcohol use takes place in social settings, yet nearly all human experimental work has administered alcohol to individuals in isolation. This study will examine the effects of alcohol in social groups and test whether these responses predict the escalation of alcohol use and development of alcohol use disorder symptoms. Participants will also complete smartphone surveys querying subjective responses to alcohol in their daily lives.

N=400 male and female young adults will participate in a laboratory session with two other participants and will consume either a moderate dose of alcohol or placebo beverage. Subjective and objective responses to alcohol will be assessed. Participants will also complete surveys on their smartphones; these will occur during drinking episodes and at random times throughout the day. Follow-up sessions will occur at 6-months and 12-months, to collect information about drinking habits and potential alcohol-related problems.

03

Conditions studied

  • Alcohol Drinking
  • Alcohol Use Disorder
  • Alcohol Intoxication
  • Alcohol; Harmful Use
  • Alcoholism
  • Binge Drinking

Browse trials for

04

In context

Alcoholism Reclassified

1,674 studies on the registry are indexed under Alcoholism; 331 are open to participants now.

This study's enrollment of 782 is above the median of 88 across 1,428 interventional studies indexed under Alcoholism.

Browse Alcoholism studies →

Lead sponsor

Carnegie Mellon University is the lead sponsor of 46 studies on the registry; 5 are open to participants now.

Compared within Alcoholism, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Alcohol Drinking. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

Ages eligible
21 Years to 29 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • 21 to 29 years of age
  • currently drinks alcohol
  • owns a smartphone

Exclusion criteria

Exclusion Criteria:

[Exclusion criteria are masked from public viewing until data collection is complete. Please contact project managers.]

06

Study design

Phase
Early Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
782 participants (actual)

Study arms

  • Experimental
    Alcohol Beverage

    Moderate dose of alcohol (target BAC .08%)

    Drug: Alcohol

  • Placebo comparator
    Placebo Beverage

    Other: Placebo

Interventions

  • target BAC .08%

  • OtherPlacebo

    placebo beverage

07

What researchers measure

Primary outcomes

  1. Change from Baseline Alcohol Use at 12-months

    Timeline Follow Back Method

    Time frame: 12-month follow-up

  2. Change from Baseline Alcohol Use Disorder Symptoms at 12-months

    Structured Clinical Interview for DSM-5

    Time frame: 12-month follow-up

Secondary outcomes

  1. Subjective Responses to Alcohol

    Participants will indicate how they feel after drinking alcohol using the Brief-Biphasic Alcohol Effects Scale, which is a 6-item scale assessing alcohol's acute stimulant and sedative effects (0-10 scale, with higher scores indicating higher values).

    Time frame: 1 day (laboratory session) and 21-day ambulatory assessment period

  2. Social Bonding

    Facial expressions of emotions using Paul Ekman's Facial Action Coding System (FACS). The duration of AUs associated with positive and negative affect will be coded.

    Time frame: 1 day (laboratory session)

  3. Social Bonding

    Perceived Group Reinforcement Scale, which is a 12-item scale assessing self-reported bonding (1-9 scale, with higher scores indicating more bonding).

    Time frame: 1 day (laboratory session)

  4. Mood

    8-item Mood Measure, which is an 8-item scale assessing mood items from each of the four quadrants of the affective circumplex (with higher scores indicating more felt emotion).

    Time frame: 1 day (laboratory session)

  5. Alcohol Use

    Quantity of standard drinks consumed.

    Time frame: 21-day ambulatory assessment period

08

Study locations

1 site
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 12, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03467191
Lead sponsor
Carnegie Mellon University
Responsible party
Kasey Creswell (Associate Professor, Carnegie Mellon University) — Principal investigator
First posted
Mar 15, 2018
Start date
Feb 13, 2018
Primary completion
Jul 15, 2022
Completion
Oct 31, 2025 (estimated)
Last update
Feb 12, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Feb 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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Studies of the drug tested here: Ethanol

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