NCT06091189

Brief Summary

The proposed study uses an experimental design to establish causal support for the role of internalized stress, pertaining to uncertainty with regard to one's sexual orientation, in contributing to heavy drinking behavior. Following exposure to internalized sexual stigma, physiological and psychological stress responses are expected to increase alcohol consumption in adults who are uncertain about their sexual orientation, especially among females, and following consumption, the physiological effects of ethanol and beliefs about the effects of alcohol are expected to alter relations between exposure to sexual stigma and the alleviation of psychological distress. Showing that physiological stress responses, whether driven by the pharmacological effects of ethanol or expectancies regarding its effects, can account for known alcohol-use disparities, particularly in bisexual/bi+ communities, would contribute a great deal to knowledge on the biology of addiction and inform subsequent interventions that seek to regulate stress reactivity.

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
165

participants targeted

Target at P75+ for early_phase_1

Timeline
Completed

Started Feb 2024

Shorter than P25 for early_phase_1

Geographic Reach
1 country

1 active site

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 22, 2023

Completed
27 days until next milestone

First Posted

Study publicly available on registry

October 19, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

February 12, 2024

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 28, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 28, 2025

Completed
Last Updated

May 8, 2025

Status Verified

May 1, 2025

Enrollment Period

1 year

First QC Date

September 22, 2023

Last Update Submit

May 5, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Beverage Consumption (in mL)

    Total beverage consumption in 35-minute tasting period.

    35 minutes

  • Psychological Distress

    Self-reported with the Positive and Negative Affective Schedule, measured on a 1 - 5 point scale, where higher numbers indicate more distress.

    Five repeated assessments, at 15-minute intervals, in lab session, immediately following beverage consumption, until study completion (BrAC < .02%, an average of 60 minutes following consumption).

  • Salivary Stress Response

    Amount of salivary cortisol (deciliter/mL)

    Baseline (following consent procedures) = Time 0; 2nd Collection: 25 minutes after Time 0; 3rd collection: 55 minutes after Time 0; 4th collection: 85 minutes after Time 0; 5th collection: 115 minutes after Time 0.

Secondary Outcomes (4)

  • Perceived Intoxication

    Five repeated assessments, at 15-minute intervals, in lab session, immediately following the taste-test portion of the study (beverage consumption), until study completion.

  • Breath Alcohol Concentration

    Baseline measure to ensure adherence to pre-lab session protocols. Plus, 5 repeated assessments, at 15-minute intervals, in lab session, immediately following beverage consumption, until study completion (BrAC < .02%).

  • Heart Rate

    Baseline measure upon arrival to the lab session. Plus, 5 repeated assessments, at 15-minute intervals, in lab session, immediately following the taste-test portion of the study (beverage consumption), until study completion.

  • Blood Pressure

    Baseline measure upon arrival to the lab session. Plus, 5 repeated assessments, at 15-minute intervals, in lab session, immediately following the taste-test portion of the study (beverage consumption), until study completion.

Study Arms (6)

Relevant Stressor Condition with No Ethanol

EXPERIMENTAL

Participants complete the Relevant Trier Social Stress Test (TSST), which asks participants to prepare a 5-minute speech on how their sexuality has developed over time. Participants are then assigned to receive a placebo priming beverage (with no ethanol) to consume over 10 minutes. Participants will consume the initial placebo drink, which is intended as a priming cue. Next, participants will be given a free period of an additional 20 minutes in which participants can consume up to three additional placebo cocktails, which do not contain ethanol.

Behavioral: Relevant Trier Social Stressor Test (TSST)Behavioral: Placebo Beverage

Irrelevant Stressor Condition with No Ethanol

ACTIVE COMPARATOR

Participants complete the Irrelevant Trier Social Stress Test (TSST), which asks participants to prepare a 5-minute speech on how their gender identity has developed over time. Participants are then assigned to receive a placebo priming beverage (with no ethanol) to consume over 10 minutes. Participants will consume the initial placebo drink, which is intended as a priming cue. Next, participants will be given a free period of an additional 20 minutes in which participants can consume up to three additional placebo cocktails, which do not contain ethanol.

Behavioral: Placebo BeverageBehavioral: Irrelevant Trier Social Stressor Test (TSST)

Control Stressor Condition with No Ethanol

PLACEBO COMPARATOR

Participants complete the Control Trier Social Stress Test (TSST), which asks participants to prepare a 5-minute speech on a recent book participants read, or a recent movie participants saw. Participants are then assigned to receive a placebo priming beverage (with no ethanol) to consume over 10 minutes. Participants will consume the initial placebo drink, which is intended as a priming cue. Next, participants will be given a free period of an additional 20 minutes in which participants can consume up to three additional placebo cocktails, which do not contain ethanol.

Behavioral: Placebo Trier Social Stressor Test (TSST)Behavioral: Placebo Beverage

Relevant Stressor Condition with Ethanol

EXPERIMENTAL

Participants complete the Relevant Trier Social Stress Test (TSST), which asks participants to prepare a 5-minute speech on how their sexuality has developed over time. Participants are then assigned to receive a priming beverage containing ethanol to consume over 10 minutes. Participants will consume the initial drink containing ethanol, which is intended as a priming dose. Next, participants will be given a free period of an additional 20 minutes in which participants can consume up to three additional cocktails, which contain ethanol. The initial drink in the alcohol condition will contain 0.3 g/kg (males) or 0.2 g/kg (females) of 80-proof ethanol, adjusted for body weight, and subsequent drinks will contain 0.1 g/kg of ethanol.

Behavioral: Relevant Trier Social Stressor Test (TSST)Drug: Ethanol

Irrelevant Stressor Condition with Ethanol

ACTIVE COMPARATOR

Participants complete the Irrelevant Trier Social Stress Test (TSST), which asks participants to prepare a 5-minute speech on how their gender identity has developed over time. Participants are then assigned to receive a priming beverage containing ethanol to consume over 10 minutes. Participants will consume the initial drink containing ethanol, which is intended as a priming dose. Next, participants will be given a free period of an additional 20 minutes in which participants can consume up to three additional cocktails, which contain ethanol. The initial drink in the alcohol condition will contain 0.3 g/kg (males) or 0.2 g/kg (females) of 80-proof ethanol, adjusted for body weight, and subsequent drinks will contain 0.1 g/kg of ethanol.

Drug: EthanolBehavioral: Irrelevant Trier Social Stressor Test (TSST)

Control Stressor Condition with Ethanol

PLACEBO COMPARATOR

Participants complete the Control Trier Social Stress Test (TSST), which asks participants to prepare a 5-minute speech on a recent book participants read, or a recent movie participants saw. Participants are then assigned to receive a priming beverage containing ethanol to consume over 10 minutes. Participants will consume the initial drink containing ethanol, which is intended as a priming dose. Next, participants will be given a free period of an additional 20 minutes in which participants can consume up to three additional cocktails, which contain ethanol. The initial drink in the alcohol condition will contain 0.3 g/kg (males) or 0.2 g/kg (females) of 80-proof ethanol, adjusted for body weight, and subsequent drinks will contain 0.1 g/kg of ethanol.

Drug: EthanolBehavioral: Placebo Trier Social Stressor Test (TSST)

Interventions

The Relevant TSST condition is a behavioral intervention that catalyzes an internalized stress response in the presence of a relevant social identity.

Relevant Stressor Condition with EthanolRelevant Stressor Condition with No Ethanol

The initial drink in the alcohol condition will contain 0.3 g/kg (males) or 0.2 g/kg (females) of 80-proof ethanol, adjusted for body weight, and subsequent drinks will contain 0.1 g/kg of ethanol. None of the control (placebo) drinks will contain ethanol.

Control Stressor Condition with EthanolIrrelevant Stressor Condition with EthanolRelevant Stressor Condition with Ethanol

The Placebo TSST is an established behavioral intervention that does not prompt significant stress responses.

Control Stressor Condition with EthanolControl Stressor Condition with No Ethanol

Placebo drinks will not contain ethanol; Drinks given to participants in the placebo beverage condition will contain a mixer that does not contain ethanol.

Control Stressor Condition with No EthanolIrrelevant Stressor Condition with No EthanolRelevant Stressor Condition with No Ethanol

The Irrelevant TSST condition is a behavioral intervention that functions as an alternative comparative condition, given no internalized stress response is expected in the presence of an irrelevant social identity.

Irrelevant Stressor Condition with EthanolIrrelevant Stressor Condition with No Ethanol

Eligibility Criteria

Age21 Years - 29 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Cisgender
  • Age 21-29
  • Sexual Identity Uncertainty (SIU; non-zero scores on a published measure). Among those with a zero level of SIU, only those who report sexual attractions and/or behaviors to both female and male partners (i.e., bisexual/bi+) will be invited to lab sessions.
  • Scores on the Alcohol Use Disorders Identification Test (AUDIT) that indicate mild or moderate risk for potential alcohol use disorder

You may not qualify if:

  • Alcohol naive persons (i.e., those without a history of alcohol use in their lifetime ).
  • Female persons who are currently pregnant (established with urine pregnancy test) or actively trying to get pregnant (self-report in the screening survey).
  • Persons who are currently in treatment or who have ever been in treatment for a substance use disorder.
  • Persons who have essential medications that disallow the consumption of alcohol.
  • Persons with scores on the Alcohol Use Disorders Identification Test (AUDIT) that indicate high risk for potential alcohol use disorder; National Institute of Alcohol Abuse and Alcoholism (NIAAA) standard drink equivalencies will be provided in the survey,

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Texas Tech University

Lubbock, Texas, 79409, United States

Location

Related Publications (7)

  • Kirschbaum C, Pirke KM, Hellhammer DH. The 'Trier Social Stress Test'--a tool for investigating psychobiological stress responses in a laboratory setting. Neuropsychobiology. 1993;28(1-2):76-81. doi: 10.1159/000119004.

    PMID: 8255414BACKGROUND
  • Het S, Rohleder N, Schoofs D, Kirschbaum C, Wolf OT. Neuroendocrine and psychometric evaluation of a placebo version of the 'Trier Social Stress Test'. Psychoneuroendocrinology. 2009 Aug;34(7):1075-86. doi: 10.1016/j.psyneuen.2009.02.008.

    PMID: 19307062BACKGROUND
  • de Wit H, Chutuape MA. Increased ethanol choice in social drinkers following ethanol preload. Behav Pharmacol. 1993 Feb;4(1):29-36.

    PMID: 11224168BACKGROUND
  • Martin CS, Earleywine M, Musty RE, Perrine MW, Swift RM. Development and validation of the Biphasic Alcohol Effects Scale. Alcohol Clin Exp Res. 1993 Feb;17(1):140-6. doi: 10.1111/j.1530-0277.1993.tb00739.x.

    PMID: 8452195BACKGROUND
  • Talley AE, Stevens JE. Sexual Orientation Self-Concept Ambiguity: Scale Adaptation and Validation. Assessment. 2017 Jul;24(5):632-645. doi: 10.1177/1073191115617016. Epub 2015 Dec 7.

    PMID: 26643117BACKGROUND
  • Saunders JB, Aasland OG, Babor TF, de la Fuente JR, Grant M. Development of the Alcohol Use Disorders Identification Test (AUDIT): WHO Collaborative Project on Early Detection of Persons with Harmful Alcohol Consumption--II. Addiction. 1993 Jun;88(6):791-804. doi: 10.1111/j.1360-0443.1993.tb02093.x.

    PMID: 8329970BACKGROUND
  • Watson D, Clark LA, Tellegen A. Development and validation of brief measures of positive and negative affect: the PANAS scales. J Pers Soc Psychol. 1988 Jun;54(6):1063-70. doi: 10.1037//0022-3514.54.6.1063.

    PMID: 3397865BACKGROUND

MeSH Terms

Interventions

Ethanol

Intervention Hierarchy (Ancestors)

AlcoholsOrganic Chemicals

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Participants will not be informed of their assigned experimental condition until the debriefing occurs. Investigators will be blind to participants assigned experimental condition.
Purpose
BASIC SCIENCE
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 22, 2023

First Posted

October 19, 2023

Study Start

February 12, 2024

Primary Completion

February 28, 2025

Study Completion

February 28, 2025

Last Updated

May 8, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will share

The investigators will plan to share IPD with identifying information removed.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Within 6 months of end of the granting period
Access Criteria
Requestor must adequately describe a research-related need to access the data. Requestor must be associated with an NIH-recognized research institution, defined as an institution registered in the NIH electronic research administration system (eRA Commons,) and have the approval of an authorized signatory official of that institution. Requestor's institution must have an active Federal wide Assurance (FWA.)
More information

Locations