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NCT Number: NCT05781009

Pregnenolone for the Treatment of Alcohol Use Disorder

This Phase 2 randomized cotrolled trial (RCT) will assess the safety and efficacy of pregnenolone (PREG; 300 mg/day, b.i.d dosing) vs. placebo (PBO) over a 12 week treatment period, and at 1-month post-treatment follow-up in individuals with Alcohol Use Disorder (AUD).

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Key information

Age range

18 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

The Yale Stress Center: Yale University

New Haven, Connecticut, 06519, United States

Location status: Recruiting

Location contact

Rachel Hart, MS

CONTACT

[email protected]

203-737-4791

Rajita Sinha, PhD

PRINCIPAL_INVESTIGATOR

Verica Milivojevic, PhD

CONTACT

[email protected]

12037371176

Verica Milivojevic, PhD

PRINCIPAL_INVESTIGATOR

About this study

In this Phase 2 single-site randomized controlled trial (RCT), men and women with Alcohol Use Disorder (AUD) will be enrolled in a 12 week trial with a 1-month follow-up assessment. Participants will be randomly assigned to 300mg pregnenolone (PREG) treatment b.i.d., or Placebo (PBO). All participants will be assessed 2x weekly and also receive behavior counseling to support recovery. The study aims to examine a) the safety and tolerability; b) efficacy on alcohol use outcomes; and c) effects on alcohol craving, anxiety, depression and physical well-being of 300mg PREG vs. PBO in men and women with AUD over the 12-week treatment period and at the 1-month follow up post-treatment period.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male and females, aged 18-70 years;
  • Regular weekly use of alcohol at least 3X weekly or more at treatment entry;
  • Must meet current DSM-5 criteria for moderate to severe Alcohol Use Disorders (AUDs) using SCID-I for DSM-5;
  • No health conditions that would impact trial participation as verified by screening and physical examination and absence of any of the exclusion criterions outlined below;
  • Able to read English and complete study evaluations;
  • Able to provide informed written and verbal consent.

Exclusion criteria

  • Meet current criteria for moderate to severe substance use disorders from use of any other psychoactive substance, excluding nicotine and cannabis use disorder;
  • Current use of opioids;
  • Regular use of anticonvulsants, sedatives or hypnotics, oral prescription analgesics (other than non-steroidal anti-inflammatory drugs), topiramate, baclofen;
  • Regular use of steroidal supplements and steroid medications interacting with study medications based on clinical judgement of study physician (excluding hormonal contraceptives in women);
  • Psychotic or otherwise severely psychiatrically disabled (i.e., suicidal, homicidal, current mania);
  • Significant underlying medical conditions such as cerebral, renal, thyroid or cardiac pathology which in the opinion of study physician would preclude patient from fully cooperating or be of potential harm during the course of the study, but stable, prescribed anti-hypertensives. cardiovascular and diabetes medications will be allowed after review by study physician;
  • Any psychotic disorder or current Axis I psychiatric disorders requiring specific acute attention, including need for psychiatric medications, but stable, prescribed antidepressants and anti-anxiety medication to treat co-occurring psychiatric disorders will be allowed;
  • Women who are pregnant, nursing or refuse to use a reliable form of birth control (as assessed by urine pregnancy tests during initial medical evaluation, and assessed every two weeks during the course of the study).

Treatment and study plan

Pregnenolone

Drug

300mg

Placebo

Drug

placebo

Primary outcomes

  1. Percent of Subjects with no Heavy Drinking Days

    Time frame: 12 weeks

    Pregnenolone versus Placebo treated subjects will be compared on any days of heavy drinking which is defined by 5 or more drinks per day in men and 4 or more drinks/day in women. This will be measured by the Percent of Subjects with no Heavy Drinking Days (PSNHDD) over a 12 week period.

  2. Safety of pregnenolone

    Time frame: 12 weeks

    The Systematic Assessment of Treatment Emergent Events (SAFTEE) Questionnaire will be used to assess adverse events weekly during the trial.

Secondary outcomes

  1. Percent Heavy Drinking Days

    Time frame: 12 weeks

    Percent of overall days with heavy drinking days (defined by 5 or more drinks per day in men and 4 or more drinks/day in women).

  2. Percent Any Drinking Days

    Time frame: 12 weeks

    Percent of any drinking days over a 12 week period.

  3. Average Drinks per Day

    Time frame: 12 weeks

    The average number of drinks consumed per day assessed weekly over the treatment period.

Study contacts

Contact information is provided by the study sponsor or research team.

Rajita Sinha, PHD

CONTACT

[email protected]

203-737-5805

Verica Milivojevic, PhD

CONTACT

[email protected]

203-737-1176

Sponsors and collaborators

Lead sponsor

Yale University

Other

Collaborators

  • National Institute on Alcohol Abuse and Alcoholism (NIAAA)

Registry information

Important dates

Study start
2024
Primary completion
2028
Study completion
2028
First posted
Mar 23, 2023
Registry last updated
Feb 2, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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