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Phase 2 N=73 Randomized Quadruple-blind Treatment

A Neurosteroid Intervention for Menopausal and Perimenopausal Depression

Major Depressive Disorder · Menopause · Perimenopause

Enrolled (actual)
73
Serious AEs
1.6%
Results posted
Jan 2026
Primary outcome: Primary: Montgomery-Asberg Depression Rating Scale (MADRS) — 26.2; 27.0; 15.7; 15.2 units on a scale — p=0.29

Study Design & Population

Study type
Interventional
Phase
Phase 2
Interventions
Pregnenolone (Drug); Placebo (Drug)
Age
Adult, Older Adult · 40+ yrs
Sex
Female
Sponsor
University of Texas Southwestern Medical Center
Primary completion
Dec 2024

Outcome Measures

OutcomeResultp-value
PRIMARY
Montgomery-Asberg Depression Rating Scale (MADRS)
26.2; 27.0; 15.7; 15.2; -11.8; -11.9 0.29
SECONDARY
Hamilton Anxiety Rating Scale (HRSA)
19.4; 19.2; 14.5; 12.9; -5.2; -5.5
SECONDARY
Pittsburgh Sleep Quality Index (PSQI)
7.5; 8.1; 5.8; 6.2; -2.9; -2.5
SECONDARY
Menopause Specific Quality of Life (MEN-QOL)
128.5; 141.0; 83.3; 95.3; -61.4; -50.3
SECONDARY
Greene Climacteric Scale (GCS)
27.5; 31.4; 14.5; 13.7; -16.8; -16.7
SECONDARY
Rey Auditory Verbal Learning Test (RAVLT)
50.0; 51.3; 53.3; 54.5; 2.9; 1.8
SECONDARY
Trail Making Test (TMT)
46.6; 51.5; 56.6; 54.1; 8.3; 1.1

Summary

HYPOTHESIS: Pregnenolone administration will be associated with greater reduction in depressive symptom severity than placebo in women with current mMDD. STUDY AIMS: Primary Aim: Determine if pregnenolone is associated with greater reduction in depressive symptom severity than placebo in women with mMDD, as measured by MADRS. Secondary Aims: 1. Determine if pregnenolone is associated with greater reduction in anxiety symptom severity than placebo in women with mMDD. 2. Determine if pregnenolone is associated with greater improvement in cognition than placebo in women with mMDD. 3. Determine if pregnenolone is associated with greater improvement in quality of life than placebo in women with mMDD. 4. Determine if pregnenolone is associated with greater improvement in vasomotor symptoms of menopause than placebo. Mechanistic Aims: 1. Determine whether changes in neurosteroid levels with pregnenolone mediate clinical response. 2. Determine if baseline neurosteroid levels predict pregnenolone response. 3. Determine whether depressive symptoms, anxiety, sleep or vasomotor symptoms improve first. A crossed-lagged panel model will explore serial correlations between changes in outcome measures.

Eligibility Criteria

Inclusion Criteria

The participants must meet the following criteria:

  • Women aged 40-67 years who are perimenopausal or early postmenopausal (within 5 years of the last menstrual period if not surgically postmenopausal), including:
  • Women who have experienced changes in menstrual cycle frequency or duration, and/or physical symptoms indicative of menopausal transition, as determined by clinician
  • Women who are using hormonal IUDs (i.e. brands Mirena and Skyla), with FSH level > 20 mIU/m (as menstrual periods are irregular with IUDs that utilize hormones, making irregular/absent periods difficult to assess as related to the menopausal transition).
  • Women with significant menopause-related physical symptoms, indicated by any of the following criteria:
  • Greene Climacteric Scale total scores > 20
  • Greene Climacteric Scale sub-score for vasomotor symptoms >3
  • 5 or more bothersome hot flashes per week (self-reported)
  • Women meeting DSM-5 criteria for current major depressive disorder (assessed by the SCID)
  • Baseline HRSD score of ≥ 18
  • Subject agrees to abstain from disallowed medications for the duration of the trial

Exclusion Criteria

The participants must not meet any of the following criteria:

  • Vulnerable populations (e.g. pregnant/nursing, severe cognitive or intellectual impairment, incarcerated)
  • Pregnancy (determined by urine pregnancy test), intending pregnancy or breast feeding
  • Psychiatric disorder other than MDD that is acute and the primary focus of symptom burden or treatment.
  • History of bipolar disorder or psychotic disorder
  • Current substance use disorder
  • Positive baseline urine drug screen of an illicit substance (in this study: opioids and cocaine,) with the exception of a medication used with a prescription (use of a detected substance that is used with a prescription, such as an opioid pain medication, is not necessarily exclusionary and will be based upon judgment of the PI, particularly in the cases of chronic opioid use). Participants who screen positive for marijuana will be offered a rescreen for eligibility at a later date.
  • Current eating disorder
  • Treatment resistant depression (failure of 2 adequate antidepressant trials or electroconvulsive therapy (ECT) during current episode; adequate antidepressant trials are defined as within the US FDA approved dosage for the medication and used for at least 6 weeks, with failure described by the patient as 2 suicide attempts in lifetime or any attempt in the past 6 months
  • Use of selective estrogen-receptor modulators (SERMs), hormone replacement therapy, hormonal contraceptives (hormonal IUDs allowed), episodic sleep medications (chronic, regular, stable-dose benzodiazepines and hypnotics such as zolpidem, Sonata (Zaleplon), and Lunesta (Eszopiclone) OR sleep-seating antihistamines such as Unisom (Doxylamine succinate) or diphenhydramine allowed) within 2 weeks of the baseline visit and randomization. Antidepressants will be allowed for those participants who have been taking the antidepressant for 6 weeks with a stable dose for at least 4 weeks.
  • Use of natural menopause and depression supplements, phytoestrogens, soy-based medications, steroids within 2 weeks of baseline visit and randomization.
  • Use of any disallowed medications (specified in the Excluded Concomitant Medication section below).
  • Women who have received a gonadal hormonal intervention within 1 month prior to study entry (stable thyroid medications are allowed).
  • Not using a medically approved method of birth control, if sexually active and not 12 or more months since last menstrual period IUDs, condoms, abstinence are acceptable forms of contraception in this study; due to the possible interactions with the study medication, oral contraceptive pills will be prohibited.
  • Uncontrolled hypertension (>160/95mmHg)
  • Active coronary artery disease, atrial fibrillation, stroke, deep vein thrombosis, pulmonary embolism or blood clotting disorder
  • Any severe, life threat
View full record on ClinicalTrials.gov →

Data sourced from ClinicalTrials.gov (NCT03505905). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication.

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