NCT04015869

Brief Summary

The goal of this study is to determine whether intravenous infusion of allopregnanolone (ALLO) attenuates stress-induced craving and stress-induced anxiety in a clinical laboratory setting. The secondary objective of this project is to characterize the behavioral effects of ALLO in heavy drinkers.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
10

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Jul 2019

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
completed

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

April 11, 2019

Completed
3 months until next milestone

Study Start

First participant enrolled

July 1, 2019

Completed
10 days until next milestone

First Posted

Study publicly available on registry

July 11, 2019

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2023

Completed
2 years until next milestone

Results Posted

Study results publicly available

August 22, 2025

Completed
Last Updated

August 22, 2025

Status Verified

August 1, 2025

Enrollment Period

4.2 years

First QC Date

April 11, 2019

Results QC Date

August 30, 2024

Last Update Submit

August 5, 2025

Conditions

Outcome Measures

Primary Outcomes (12)

  • Alcohol Urge Questionnaire (AUQ) Pre-script

    The Alcohol Urge Questionnaire (AUQ) is an 8-question, self-administered measure of drinking urges. Questions are in the form of a 7-point scale with participants endorsing the extent to which they agree or disagree with statements relating to desire to drink (4 items), expectation of a desired outcome from drinking (2 items), and inability to avoid drinking if alcohol was available (2 items). Total scores range from 8 (strongly disagree) to 56 (strongly agree).

    Pre-Script 40 minutes before trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Pre-Script

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 3. "I feel upset" (scored individually): the scoring for "I feel upset is: a = 1, b = 2, c = 3, and d = 4 (1 not at all upset to 4 very much upset)

    Pre-Script 40 minutes before trauma/neutral script is presented

  • Alcohol Urge Questionnaire (AUQ) Post-Script

    The Alcohol Urge Questionnaire (AUQ) is an 8-question, self-administered measure of drinking urges. Questions are in the form of a 7-point scale with participants endorsing the extent to which they agree or disagree with statements relating to desire to drink (4 items), expectation of a desired outcome from drinking (2 items), and inability to avoid drinking if alcohol was available (2 items). Total scores range from 8 (strongly disagree) to 56 (strongly agree).

    Post-Script 5 minutes after trauma/neutral script is presented

  • Alcohol Urge Questionnaire (AUQ) Recovery

    The Alcohol Urge Questionnaire (AUQ) is an 8-question, self-administered measure of drinking urges. Questions are in the form of a 7-point scale with participants endorsing the extent to which they agree or disagree with statements relating to desire to drink (4 items), expectation of a desired outcome from drinking (2 items), and inability to avoid drinking if alcohol was available (2 items). Total scores range from 8 (strongly disagree) to 56 (strongly agree).

    Recovery 10 minutes after trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Post-Script

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 3. "I feel upset" (scored individually): the scoring for "I feel upset is: a = 1, b = 2, c = 3, and d = 4 (1 not at all upset to 4 very much upset)

    Post-Script 5 minutes after trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Recovery

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 3. "I feel upset" (scored individually): the scoring for "I feel upset is: a = 1, b = 2, c = 3, and d = 4 (1 not at all upset to 4 very much upset)

    Recovery 10 minutes after trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I Feel Content - Pre-Script

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 5. "I feel content" (scored individually): the scoring for "I feel content is: a = 4, b = 3, c = 2, and d = 1 (4 not at all content to 1 very much content)

    Pre-Script 40 minutes before trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I Feel Content - Post-Script

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 5. "I feel content" (scored individually): the scoring for "I feel content is: a = 4, b = 3, c = 2, and d = 1 (4 not at all content to 1 very much content)

    Post-Script 5 minutes after trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I Feel Content - Recovery

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 5. "I feel content" (scored individually): the scoring for "I feel content is: a = 4, b = 3, c = 2, and d = 1 (4 not at all content to 1 very much content)

    Recovery10 minutes after trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I am Worried - Pre-Script

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 6. "I am worried" (scored individually): the scoring for "I feel content is: a = 1, b = 2, c = 3, and d = 4 (1 not at all worried to 4 very much worried)

    Pre-Script 40 minutes before trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I am Worried - Post-Script

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 6. "I am worried" (scored individually): the scoring for "I feel content is: a = 1, b = 2, c = 3, and d = 4 (1 not at all worried to 4 very much worried)

    Post-Script 5 minutes after trauma/neutral script is presented

  • The State-Trait Anxiety Inventory (STAI-6) I am Worried - Recovery

    The State Trait Anxiety Inventory (STAI-6) is a 6-item self-rated instrument used to assess anxiety state. The STAI-6 questions included: 1. "I feel calm"; 2. "I am tense"; 3. "I feel upset"; 4. "I am relaxed"; 5. "I feel content"; 6. "I am worried". Each of these questions were rated as: a) "not at all"; b) "somewhat"; c) "moderately"; d) "very much". For questions 2, 3, and 6, the scoring was a = 1, b = 2, c = 3, and d = 4. For the other 3 questions, the scoring was a = 4, b = 3, c = 2, and d = 1. This outcome is for 6. "I am worried" (scored individually): the scoring for "I feel content is: a = 1, b = 2, c = 3, and d = 4 (1 not at all worried to 4 very much worried)

    Recovery 10 minutes after trauma/neutral script is presented

Secondary Outcomes (8)

  • Biphasic Alcohol Effects Scale (BAES) Sedation Items - Pre-Script

    Pre-Script 40 minutes before trauma/neutral script is presented

  • Biphasic Alcohol Effects Scale (BAES) Sedation Items

    Pre-infusion (at 0 minutes), during infusion (approximately 20 minutes) and post-infusion (approximately 90 minutes)

  • Biphasic Alcohol Effects Scale (BAES) Sedation Items - Target Alcohol Dose (40mg%)

    Target Alcohol dose (40mg%) 90 minutes after trauma/neutral script is presented

  • Biphasic Alcohol Effects Scale (BAES) Sedation Items - End of Test Day

    End of test day 150 minutes after trauma/neutral script is presented

  • Biphasic Alcohol Effects Scale (BAES) Stimulation Items - Pre-Script

    Pre-Script 40 minutes before trauma/neutral script is presented

  • +3 more secondary outcomes

Study Arms (2)

allopregnanolone

ACTIVE COMPARATOR

Allopregnanolone infusion dose of 100nM over 175 min

Drug: Allopregnanolone

placebo

PLACEBO COMPARATOR

Placebo infusion

Drug: Placebos

Interventions

neurosteroid

allopregnanolone

placebo

placebo

Eligibility Criteria

Age21 Years - 50 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Non-treatment seeking individuals with current Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) alcohol use disorder (AUD)
  • No current substance use disorder (except tobacco, alcohol, and marijuana)
  • No current medical problems and normal electrocardiogram (ECG)
  • For women, not pregnant as determined by pregnancy screening, not breast feeding.

You may not qualify if:

  • Current major psychiatric illnesses including mood, psychotic, or anxiety disorders
  • History of major medical illnesses; including liver diseases, heart disease, chronic pain or other medical conditions that the physician investigator deems contraindicated for the subject to be in the study
  • Liver function tests (ALT or AST) greater than 3 times normal
  • weight \>120kg
  • renal impairment
  • patients on the following medications: a) medications for alcoholism (e.g. naltrexone, disulfiram, topiramate, acamprosate); b) psychotropic medications that promote sedation (please note patients on psychotropic medications for current psychiatric conditions will also be excluded); and c) patients currently taking antibiotics or antifungals

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

VA Connecticut Healtcase System

West Haven, Connecticut, 06516, United States

Location

MeSH Terms

Conditions

Alcoholism

Interventions

Pregnanolone

Condition Hierarchy (Ancestors)

Alcohol-Related DisordersSubstance-Related DisordersChemically-Induced DisordersMental Disorders

Intervention Hierarchy (Ancestors)

PregnanesSteroidsFused-Ring CompoundsPolycyclic Compounds

Results Point of Contact

Title
Elizabeth Ralevski
Organization
Yale University School of Medicine, Department of Psychiatry

Study Officials

  • Elizabeth Ralevski, PhD

    Yale University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Randomized, double blind, placebo controlled
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Research Scientist

Study Record Dates

First Submitted

April 11, 2019

First Posted

July 11, 2019

Study Start

July 1, 2019

Primary Completion

September 1, 2023

Study Completion

September 1, 2023

Last Updated

August 22, 2025

Results First Posted

August 22, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Locations