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Effect of Allopregnanolone on Stress-induced Craving

Effect of Allopregnanolone on Stress-induced Craving

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04015869
Enrollment
10
Registered
2019-07-11
Start date
2019-07-01
Completion date
2023-09-01
Last updated
2025-08-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Alcohol Use Disorder

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.

Detailed description

This is a double-blind, placebo-controlled study that will randomize heavy at risk drinkers to 2 groups: targeted dose of 100 nM of ALLO or placebo. Participants will receive a continuous infusion of ALLO (or placebo) for approximately 175 min. Sixty minutes after the start of the infusion, when ALLO levels are relatively stable, the stress induction paradigm will be introduced. Participants will be presented with a stress cue and a neutral cue in random order. Stress and neutral cues will consist of personalized 5-minute scripts created prior to testing. Measures of stress-induced craving and stress-induced anxiety will be presented before the cue (pre), immediately following the cue (post) and 10 minutes after (recovery). An alcohol infusion (40mg%) begins at approximately 120 minutes into ALLO Infusion. Once the alcohol infusion has reached the targeted dose of 40mg% the infusion is clamped for approximately 20 minutes. The study outcomes will include measures of stress-induced craving and stress-induced anxiety as well as measures of subjective mood effects, cognitive performance, and motor coordination.

Interventions

neurosteroid

DRUGPlacebos

placebo

Sponsors

National Institute on Alcohol Abuse and Alcoholism (NIAAA)
CollaboratorNIH
Yale University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
HEALTH_SERVICES_RESEARCH
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Intervention model description

Randomized, double blind, placebo controlled

Eligibility

Sex/Gender
ALL
Age
21 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* 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.

Exclusion criteria

* 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

Design outcomes

Primary

MeasureTime frameDescription
The State-Trait Anxiety Inventory (STAI-6) I am Worried - RecoveryRecovery 10 minutes after trauma/neutral script is presentedThe 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)
Alcohol Urge Questionnaire (AUQ) RecoveryRecovery 10 minutes after trauma/neutral script is presentedThe 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).
The State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Post-ScriptPost-Script 5 minutes after trauma/neutral script is presentedThe 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)
The State-Trait Anxiety Inventory (STAI-6) I Feel Upset - RecoveryRecovery 10 minutes after trauma/neutral script is presentedThe 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)
The State-Trait Anxiety Inventory (STAI-6) I Feel Content - Pre-ScriptPre-Script 40 minutes before trauma/neutral script is presentedThe 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)
The State-Trait Anxiety Inventory (STAI-6) I Feel Content - Post-ScriptPost-Script 5 minutes after trauma/neutral script is presentedThe 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)
The State-Trait Anxiety Inventory (STAI-6) I Feel Content - RecoveryRecovery10 minutes after trauma/neutral script is presentedThe 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)
The State-Trait Anxiety Inventory (STAI-6) I am Worried - Pre-ScriptPre-Script 40 minutes before trauma/neutral script is presentedThe 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)
The State-Trait Anxiety Inventory (STAI-6) I am Worried - Post-ScriptPost-Script 5 minutes after trauma/neutral script is presentedThe 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)
Alcohol Urge Questionnaire (AUQ) Pre-scriptPre-Script 40 minutes before trauma/neutral script is presentedThe 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).
The State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Pre-ScriptPre-Script 40 minutes before trauma/neutral script is presentedThe 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)
Alcohol Urge Questionnaire (AUQ) Post-ScriptPost-Script 5 minutes after trauma/neutral script is presentedThe 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).

Secondary

MeasureTime frameDescription
Biphasic Alcohol Effects Scale (BAES) Sedation ItemsPre-infusion (at 0 minutes), during infusion (approximately 20 minutes) and post-infusion (approximately 90 minutes)Biphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol. Data presented here is mean at 90 minutes.
Biphasic Alcohol Effects Scale (BAES) Sedation Items - Target Alcohol Dose (40mg%)Target Alcohol dose (40mg%) 90 minutes after trauma/neutral script is presentedBiphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol.
Biphasic Alcohol Effects Scale (BAES) Sedation Items - End of Test DayEnd of test day 150 minutes after trauma/neutral script is presentedBiphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol.
Biphasic Alcohol Effects Scale (BAES) Stimulation Items - Pre-ScriptPre-Script 40 minutes before trauma/neutral script is presentedBiphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol.
Biphasic Alcohol Effects Scale (BAES) Stimulation ItemsPre-infusion (at 0 minutes), during infusion (approximately 20 minutes) and post-infusion (approximately 90 minutes)Biphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol. Data presented here is mean at 90 minutes.
Biphasic Alcohol Effects Scale (BAES) Stimulation Items - Target Alcohol Dose (40mg%)Target Alcohol Dose (40mg%) 90 minutes after trauma/neutral script is presentedBiphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol.
Biphasic Alcohol Effects Scale (BAES) Stimulation Items - End of Test DayEnd of Test Day 150 minutes after trauma/neutral script is presentedBiphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol.
Biphasic Alcohol Effects Scale (BAES) Sedation Items - Pre-ScriptPre-Script 40 minutes before trauma/neutral script is presentedBiphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol.

Countries

United States

Participant flow

Participants by arm

ArmCount
Allopregnanolone 100nM
Targeted dose of 100 nM of ALLO, a continuous infusion of ALLO for approximately 175 min. Sixty minutes after the start of the infusion, when ALLO levels are relatively stable, the stress induction paradigm will be introduced. Stress and neutral cues will consist of personalized 5-minute scripts created prior to testing. Measures of stress-induced craving and stress-induced anxiety will be presented before the cue (pre), immediately following the cue (post) and 10 minutes after (recovery). An alcohol infusion (40mg%) begins at approximately 120 minutes into ALLO Infusion. Once the alcohol infusion has reached the targeted dose of 40mg% the infusion is clamped for approximately 20 minutes. After 20-minute clamp both infusions will end.
5
Placebo
Placebo dose, a continuous infusion of placebo for approximately 175 min. Sixty minutes after the start of the infusion, when ALLO levels are relatively stable, the stress induction paradigm will be introduced. Stress and neutral cues will consist of personalized 5-minute scripts created prior to testing. Measures of stress-induced craving and stress-induced anxiety will be presented before the cue (pre), immediately following the cue (post) and 10 minutes after (recovery). An alcohol infusion (40mg%) begins at approximately 120 minutes into ALLO Infusion. Once the alcohol infusion has reached the targeted dose of 40mg% the infusion is clamped for approximately 20 minutes. After 20-minute clamp both infusions will end.
5
Total10

Baseline characteristics

CharacteristicTotalAllopregnanolone 100nMPlacebo
Age, Continuous38.1 years
STANDARD_DEVIATION 9.1
35.4 years
STANDARD_DEVIATION 10.8
40.8 years
STANDARD_DEVIATION 7.3
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
8 Participants4 Participants4 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
2 Participants1 Participants1 Participants
Sex: Female, Male
Female
2 Participants1 Participants1 Participants
Sex: Female, Male
Male
8 Participants4 Participants4 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 50 / 5
other
Total, other adverse events
0 / 50 / 5
serious
Total, serious adverse events
0 / 50 / 5

Outcome results

Primary

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).

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptAlcohol Urge Questionnaire (AUQ) Post-Script27.09 units on a scaleStandard Error 6.1
Allopregnanolone Neutral ScriptAlcohol Urge Questionnaire (AUQ) Post-Script21.50 units on a scaleStandard Error 7.61
Placebo Trauma ScriptAlcohol Urge Questionnaire (AUQ) Post-Script14.12 units on a scaleStandard Error 6.63
Placebo Neutral ScriptAlcohol Urge Questionnaire (AUQ) Post-Script24.70 units on a scaleStandard Error 7.61
Primary

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).

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptAlcohol Urge Questionnaire (AUQ) Pre-script24.45 units on a scaleStandard Error 6.18
Allopregnanolone Neutral ScriptAlcohol Urge Questionnaire (AUQ) Pre-script21.51 units on a scaleStandard Error 5.05
Placebo Trauma ScriptAlcohol Urge Questionnaire (AUQ) Pre-script19.15 units on a scaleStandard Error 6.18
Placebo Neutral ScriptAlcohol Urge Questionnaire (AUQ) Pre-script26.29 units on a scaleStandard Error 5.05
Primary

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).

Time frame: Recovery 10 minutes after trauma/neutral script is presented

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptAlcohol Urge Questionnaire (AUQ) Recovery25.65 units on a scaleStandard Error 6.56
Allopregnanolone Neutral ScriptAlcohol Urge Questionnaire (AUQ) Recovery25.76 units on a scaleStandard Error 6.9
Placebo Trauma ScriptAlcohol Urge Questionnaire (AUQ) Recovery17.03 units on a scaleStandard Error 7.14
Placebo Neutral ScriptAlcohol Urge Questionnaire (AUQ) Recovery24.70 units on a scaleStandard Error 7.61
Primary

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)

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Post-Script1.6 units on a scaleStandard Error 0.23
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Post-Script1.0 units on a scaleStandard Error 0.23
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Post-Script1.4 units on a scaleStandard Error 0.23
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Post-Script1.4 units on a scaleStandard Error 0.23
Primary

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)

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Pre-Script1.0 units on a scaleStandard Error 0.23
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Pre-Script1.0 units on a scaleStandard Error 0.23
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Pre-Script1.2 units on a scaleStandard Error 0.23
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Pre-Script1.6 units on a scaleStandard Error 0.23
Primary

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)

Time frame: Recovery 10 minutes after trauma/neutral script is presented

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Recovery1.0 units on a scaleStandard Error 0.23
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Recovery1.0 units on a scaleStandard Error 0.23
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Recovery1.2 units on a scaleStandard Error 0.23
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I am Worried - Recovery1.2 units on a scaleStandard Error 0.23
Primary

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)

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Post-Script2.2 units on a scaleStandard Error 0.39
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Post-Script3.6 units on a scaleStandard Error 0.39
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Post-Script2.8 units on a scaleStandard Error 0.39
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Post-Script2.8 units on a scaleStandard Error 0.39
Primary

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)

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Pre-Script3.16 units on a scaleStandard Error 0.41
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Pre-Script3.6 units on a scaleStandard Error 0.39
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Pre-Script3.0 units on a scaleStandard Error 0.39
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Pre-Script2.2 units on a scaleStandard Error 0.39
Primary

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)

Time frame: Recovery10 minutes after trauma/neutral script is presented

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Recovery3.2 units on a scaleStandard Error 0.39
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Recovery3.4 units on a scaleStandard Error 0.39
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Recovery2.4 units on a scaleStandard Error 0.39
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Content - Recovery2.2 units on a scaleStandard Error 0.39
Primary

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)

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Post-Script1.6 units on a scaleStandard Error 0.26
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Post-Script1.0 units on a scaleStandard Error 0.26
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Post-Script1.6 units on a scaleStandard Error 0.26
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Post-Script1.4 units on a scaleStandard Error 0.26
Primary

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)

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Pre-Script1.4 units on a scaleStandard Error 0.26
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Pre-Script1.0 units on a scaleStandard Error 0.26
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Pre-Script1.0 units on a scaleStandard Error 0.26
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Pre-Script1.4 units on a scaleStandard Error 0.26
Primary

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)

Time frame: Recovery 10 minutes after trauma/neutral script is presented

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Recovery1.0 units on a scaleStandard Error 0.26
Allopregnanolone Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Recovery1.0 units on a scaleStandard Error 0.26
Placebo Trauma ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Recovery1.4 units on a scaleStandard Error 0.26
Placebo Neutral ScriptThe State-Trait Anxiety Inventory (STAI-6) I Feel Upset - Recovery1.2 units on a scaleStandard Error 0.26
Secondary

Biphasic Alcohol Effects Scale (BAES) Sedation Items

Biphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol. Data presented here is mean at 90 minutes.

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items10.6 units on a scaleStandard Error 3.38
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items5.2 units on a scaleStandard Error 3.38
Secondary

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

Biphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol.

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items - End of Test Day2.8 units on a scaleStandard Error 2.54
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items - End of Test Day6.4 units on a scaleStandard Error 2.54
Secondary

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

Biphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol.

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

Population: Analysis Population Description: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items - Pre-Script6.4 units on a scaleStandard Error 2.71
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items - Pre-Script6.2 units on a scaleStandard Error 2.71
Secondary

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

Biphasic Alcohol Effects Scale (BAES) Sedation items - sum of subjective responses - 0(not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES sedation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater sedative effects of alcohol.

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

Population: Analysis Population Description: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items - Target Alcohol Dose (40mg%)5.8 units on a scaleStandard Error 3.72
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Sedation Items - Target Alcohol Dose (40mg%)4.2 units on a scaleStandard Error 3.72
Secondary

Biphasic Alcohol Effects Scale (BAES) Stimulation Items

Biphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol. Data presented here is mean at 90 minutes.

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

Population: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items17.4 units on a scaleStandard Error 8.18
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items15.6 units on a scaleStandard Error 8.18
Secondary

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

Biphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol.

Time frame: End of Test Day 150 minutes after trauma/neutral script is presented

Population: Analysis Population Description: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items - End of Test Day17.6 units on a scaleStandard Error 4.18
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items - End of Test Day17.4 units on a scaleStandard Error 4.18
Secondary

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

Biphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol.

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

Population: Analysis Population Description: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items - Pre-Script25.8 units on a scaleStandard Error 6.8
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items - Pre-Script14.2 units on a scaleStandard Error 6.8
Secondary

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

Biphasic Alcohol Effects Scale (BAES) Simulation items - sum of subjective responses - 0 (not at all) to 10 (extremely) for 7 sedation related questions regarding effects of alcohol. Total BAES stimulation subscale score: 0 (lower sedation) -70 (higher sedation) with higher numbers indicating greater stimulating effects of alcohol.

Time frame: Target Alcohol Dose (40mg%) 90 minutes after trauma/neutral script is presented

Population: Analysis Population Description: All available data was utilized in the analysis using mixed models

ArmMeasureValue (MEAN)Dispersion
Allopregnanolone Trauma ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items - Target Alcohol Dose (40mg%)26.2 units on a scaleStandard Error 5.36
Allopregnanolone Neutral ScriptBiphasic Alcohol Effects Scale (BAES) Stimulation Items - Target Alcohol Dose (40mg%)31.4 units on a scaleStandard Error 5.36

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026