Study on Allopregnanolone and Depression in Women Across the Menopause Transition

Last updated: May 12, 2026
Sponsor: Beth Israel Deaconess Medical Center
Overall Status: Active - Recruiting

Phase

N/A

Condition

Depression

Treatment

pregnenolone

placebo

Clinical Study ID

NCT06238700
2026P000017
  • Ages 40-60
  • Female

Study Summary

This study aims to identify how enhanced allopregnanolone activity (via pregnenolone) affects behavior and neurobiology that may underlie perimenopausal depression.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Healthy women ages 40 to 60 years in the menopause transition

  • Depressive symptoms

  • Psychotropic medications are allowed if the dose is stable prior to screening andthroughout the study

  • Able to read Arabic numerals and perform simple arithmetic

  • Able to provide written informed consent

Exclusion

Exclusion Criteria:

  • Systemic hormone therapy

  • Contraindicated medications with pregnenolone

  • Systemic corticosteroid

  • Other psychiatric illnesses that are considered to be primary

  • Current suicidal ideation

  • Active substance use disorders

  • Unstable medical conditions

  • Obstructive sleep apnea or other primary sleep disorders

  • Abnormal hepatic and renal function

  • Known allergy to progesterone, exogenous allopregnanolone, or pregnenolone

  • History of head injury resulting in loss of consciousness > 20 min

  • Inability to comply with barrier contraceptive methods

  • Known intellectual disability

  • Investigator judgement that study participation constitutes substantial risk givenmedical or psychiatric condition

  • Current or recent participation in clinical trial expected to interfere with risk ofor interpretation of study data

  • Inability to comply with study procedures

Study Design

Total Participants: 80
Treatment Group(s): 2
Primary Treatment: pregnenolone
Phase:
Study Start date:
May 14, 2024
Estimated Completion Date:
August 31, 2027

Study Description

Midlife women are burdened with depression risk that is at least partly attributed to changing reproductive steroid dynamics across a prolonged reproductive transition. We hypothesize that declining endogenous allopregnanolone (ALLO) levels across the menopause transition underlies perimenopausal depression. This mechanistic trial aims to amplify the contrast between lower endogenous ALLO levels in perimenopausal women and higher levels induced by pregnenolone. This will be achieved by using the over-the-counter dietary supplement, pregnenolone, in a randomized, double-blind, parallel-arm, placebo-controlled trial. By manipulating ALLO levels together with key measurement of depression domains, this study harnesses the endocrine biology of perimenopause to explicate behavioral and neurobiological mechanisms underlying depression in women across the menopause transition.

Connect with a study center

  • Beth Israel Deaconess Medical Center

    Boston, Massachusetts 02215
    United States

    Active - Recruiting

  • Brigham and Women's Hospital

    Boston, Massachusetts 02115
    United States

    Site Not Available

  • Brigham and Women's Hospital

    Boston 4930956, Massachusetts 6254926 02115
    United States

    Site Not Available

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