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The Role of Hormones in Postpartum Mood Disorders

An Endocrine Model for Postpartum Mood Disorders

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00001481
Enrollment
74
Registered
1999-11-04
Start date
1996-04-26
Completion date
2024-10-25
Last updated
2025-12-05

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

Conditions

Postpartum Depression

Keywords

Postpartum Disorders, Mood, Hormones, GnRH Agonist, Postpartum Depression

Brief summary

The present protocol is designed to create a scaled-down hormonal milieu of pregnancy and the puerperium in order to determine whether it is the abrupt withdrawal of gonadal steroids or the prolonged exposure to gonadal steroids that is associated with mood symptoms.

Detailed description

The appearance of mood and behavioral symptoms during pregnancy and the postpartum period has been extensively reported. While there has been much speculation about possible biologically based etiologies for postpartum disorders (PPD), none has ever been confirmed. The present protocol is designed to create a scaled-down hormonal milieu of pregnancy and the puerperium in order to determine whether women who have had a previous episode of postpartum major affective episode will experience differential mood and behavioral effects during ovarian hormone exposure and/or withdrawal compared with controls and to determine whether it is the abrupt withdrawal of gonadal steroids or the prolonged exposure to gonadal steroids that is associated with mood symptoms. Supraphysiologic plasma levels of gonadal steroids will be established, maintained, and then rapidly reduced, simulating the hormonal events that occur during pregnancy and parturition. This will be accomplished by administering estradiol and progesterone to women who are pretreated with a gonadotropin releasing hormone (GnRH) agonist (Lupron). After eight weeks, administration of gonadal steroids will be stopped in one group of patients and controls, and a sudden decline in the plasma hormone levels will be precipitated. Another group will be maintained on supraphysiologic levels of estrogen and progesterone for an additional month.

Interventions

DRUGEstradiol

Participants receive 17 beta-estradiol as oral capsule twice daily

OTHERPlacebo

Participants receive placebo as oral capsule twice daily

DRUGProgesterone

Participants receive progesterone as oral capsule twice daily

DRUGleuprolide acetate

Leuprolide acetate is a gonadotropin releasing hormone (GnRH) agonist, given via intramuscular injection monthly

Sponsors

National Institute of Mental Health (NIMH)
Lead SponsorNIH

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 50 Years
Healthy volunteers
No

Inclusion criteria

* INCLUSION CRITERIA: A. Group 1: Women with a history of postpartum depression: 1. A history of Diagnostic and Statistical Manual (DSM)-IV major depression or hypomanic/manic episode that occurred within three months of childbirth (as determined by a Structured Clinical Interview for the DSM (SCID) interview)); 2. has been well for a minimum of one year; 3. a regular menstrual cycle for at least three months; 4. age 18-50; 5. not pregnant, not lactating and in good medical health; 6. medication free (including birth control pills); 7. no history of puerperal suicide attempts or psychotic episodes requiring hospitalization. B. Group 2: Women with a history of Major Depressive Disorder 1. A history of DSM-IV major depression episode(s) occurring outside of pregnancy and not within three months postpartum; 2. has been well for a minimum of one year; 3. a regular menstrual cycle for at least three months; 4. age 18-50; 5. not pregnant, not lactating and in good medical health; 6. medication free (including birth control pills); 7. no history of suicide attempts or psychotic episodes requiring hospitalization. C. Group 3: Normal Controls 1\) Controls will meet all criteria specified except they must not have any past or present Axis I diagnosis or evidence of menstrual related mood disorders.

Exclusion criteria

Patients will not be permitted to enter this protocol if they have important clinical or laboratory abnormalities including any history of the following: * endometriosis; * undiagnosed enlargement of the ovaries; * liver disease; * breast cancer; * a history of blood clots in the legs or lungs; * undiagnosed vaginal bleeding; * porphyria; * diabetes mellitus; * malignant melanoma; * gallbladder or pancreatic disease; * heart or kidney disease; * cerebrovascular disease (stroke); * cigarette smoking; * a history of suicide attempts or psychotic episodes requiring hospitalization; * recurrent migraine headaches; * pregnancy (patients will be warned not to become pregnant during the study and will be advised to employ barrier contraceptive methods; * pregnancy-related medical conditions such as hyperemesis gravidarum, pretoxemia and toxemia, deep vein thrombosis (DVT) and bleeding diathesis; * Any woman with a first degree relative (immediate family) with premenopausal breast cancer or breast cancer presenting in both breasts or any woman who has multiple family members (greater than three relatives) with postmenopausal breast cancer will also be excluded from participating in this protocol; * Any woman meeting the Stages of Reproductive Aging Workshop Criteria (STRAW) for the perimenopause will be excluded from participation. Specifically, we will exclude any woman with an elevated plasma follicle stimulating hormone (FSH) level (greater than or equal to 14 IU/L) and with menstrual cycle variability of \> 7 days different from their normal cycle length; * Subjects who are unable to provide informed consent; * National Institute of Mental Health (NIMH) employees and staff and their immediate family members will be excluded from the study per NIMH policy.

Design outcomes

Primary

MeasureTime frameDescription
Edinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeeks 16, 18, and 20The Edinburgh Postnatal Depression Scale (EPDS) is a self-reported 10 item questionnaire to asses a participant's mood over the past week. Each question has four possible answers, scored from 0 to 3 with total score ranging from 0 to 30. Higher scores indicate more severe mood symptoms. EPDS was administered once every 2 weeks for the duration of the study. Analysis was calculated as the mean of scores for baseline (week 16) and weeks 18 and 20.

Countries

United States

Participant flow

Pre-assignment details

74 participants were consented: * 21 participants were screen failure * 2 participants withdrew after signing consent * 4 participants dropped out prior to randomization * 1 participant dropped out after randomization and prior to start of intervention * 46 participants were randomized and received study intervention

Participants by arm

ArmCount
Arm 1a - Postpartum Depression: Hormone Withdrawal Group
Female participants with history of postpartum depression (PPD) received 3.75 mg of gonadotropin releasing hormone (GnRH) agonist leuprolide acetate (Lupron) via intramuscular injection on a monthly basis for five months (20 weeks), administered during visit for weeks 0, 4, 8, 12, & 16. Participants received oral capsules twice daily under single blind conditions for the same 5 months (20 weeks). During weeks 0 through 7, all participants received placebo via oral capsule twice daily. During weeks 8 through 15, all participants received 2 mg of 17 beta-estradiol via oral capsule twice daily and 200 mg of progesterone via oral capsule twice daily. During weeks 16 through 20, all participants received placebo capsules to be taken twice daily.
16
Arm 1b - Depression, Non-reproductive: Hormone Withdrawal Group
Female participants with history of non-reproductive related depression received 3.75 mg of gonadotropin releasing hormone (GnRH) agonist leuprolide acetate (Lupron) via intramuscular injection on a monthly basis for five months (20 weeks), administered during visit for weeks 0, 4, 8, 12, & 16. Participants received oral capsules twice daily under single blind conditions for the same 5 months (20 weeks). During weeks 0 through 7, all participants received placebo via oral capsule twice daily. During weeks 8 through 15, all participants received 2 mg of 17 beta-estradiol via oral capsule twice daily and 200 mg of progesterone via oral capsule twice daily. During weeks 16 through 20, all participants received placebo capsules to be taken twice daily.
1
Arm 1c- Healthy Volunteer: Hormone Withdrawal Group
Female participants without history of depression received 3.75 mg of gonadotropin releasing hormone (GnRH) agonist leuprolide acetate (Lupron) via intramuscular injection on a monthly basis for five months (20 weeks), administered during visit for weeks 0, 4, 8, 12, & 16. Participants received oral capsules twice daily under single blind conditions for the same 5 months (20 weeks). During weeks 0 through 7, all participants received placebo via oral capsule twice daily. During weeks 8 through 15, all participants received 2 mg of 17 beta-estradiol via oral capsule twice daily and 200 mg of progesterone via oral capsule twice daily. During weeks 16 through 20, all participants received placebo capsules to be taken twice daily.
13
Arm 2a: Postpartum Depression; Hormone Continuation Group
Female participants with history of postpartum depression (PPD) received 3.75 mg of gonadotropin releasing hormone (GnRH) agonist leuprolide acetate (Lupron) via intramuscular injection on a monthly basis for five months (20 weeks), administered during visit for weeks 0, 4, 8, 12, & 16. Participants received oral capsules twice daily under single blind conditions for the same 5 months (20 weeks). During weeks 0 through 7, all participants received placebo via oral capsule twice daily. During weeks 8 through 20, all participants received 2 mg of 17 beta-estradiol via oral capsule twice daily and 200 mg of progesterone via oral capsule twice daily.
7
Arm 2b - Depression, Non-reproductive: Hormone Continuation Group
Female participants with history of non-reproductive related depression received 3.75 mg of gonadotropin releasing hormone (GnRH) agonist leuprolide acetate (Lupron) via intramuscular injection on a monthly basis for five months (20 weeks), administered during visit for weeks 0, 4, 8, 12, & 16. Participants received oral capsules twice daily under single blind conditions for the same 5 months (20 weeks). During weeks 0 through 7, all participants received placebo via oral capsule twice daily. During weeks 8 through 20, all participants received 2 mg of 17 beta-estradiol via oral capsule twice daily and 200 mg of progesterone via oral capsule twice daily.
2
Arm 2c- Healthy Volunteer: Hormone Continuation Group
Female participants without history of depression received 3.75 mg of gonadotropin releasing hormone (GnRH) agonist leuprolide acetate (Lupron) via intramuscular injection on a monthly basis for five months (20 weeks), administered during visit for weeks 0, 4, 8, 12, & 16. Participants received oral capsules twice daily under single blind conditions for the same 5 months (20 weeks). During weeks 0 through 7, all participants received placebo via oral capsule twice daily. During weeks 8 through 20, all participants received 2 mg of 17 beta-estradiol via oral capsule twice daily and 200 mg of progesterone via oral capsule twice daily.
7
Total46

Baseline characteristics

CharacteristicArm 1a - Postpartum Depression: Hormone Withdrawal GroupArm 1b - Depression, Non-reproductive: Hormone Withdrawal GroupArm 1c- Healthy Volunteer: Hormone Withdrawal GroupArm 2a: Postpartum Depression; Hormone Continuation GroupArm 2b - Depression, Non-reproductive: Hormone Continuation GroupArm 2c- Healthy Volunteer: Hormone Continuation GroupTotal
Age, Categorical
<=18 years
3 Participants0 Participants0 Participants2 Participants0 Participants0 Participants5 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
13 Participants1 Participants13 Participants5 Participants2 Participants7 Participants41 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants0 Participants0 Participants1 Participants0 Participants0 Participants2 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
15 Participants1 Participants12 Participants6 Participants2 Participants7 Participants43 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
1 Participants0 Participants0 Participants1 Participants0 Participants1 Participants3 Participants
Race (NIH/OMB)
Black or African American
2 Participants0 Participants7 Participants2 Participants1 Participants4 Participants16 Participants
Race (NIH/OMB)
More than one race
1 Participants0 Participants0 Participants0 Participants0 Participants1 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants1 Participants0 Participants0 Participants0 Participants1 Participants
Race (NIH/OMB)
White
12 Participants1 Participants5 Participants4 Participants1 Participants1 Participants24 Participants
Sex: Female, Male
Female
16 Participants1 Participants13 Participants7 Participants2 Participants7 Participants46 Participants
Sex: Female, Male
Male
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 160 / 10 / 130 / 70 / 20 / 7
other
Total, other adverse events
3 / 160 / 10 / 131 / 70 / 21 / 7
serious
Total, serious adverse events
0 / 160 / 10 / 130 / 70 / 20 / 7

Outcome results

Primary

Edinburgh Postnatal Depression Scale (EPDS) Mean Total Score

The Edinburgh Postnatal Depression Scale (EPDS) is a self-reported 10 item questionnaire to asses a participant's mood over the past week. Each question has four possible answers, scored from 0 to 3 with total score ranging from 0 to 30. Higher scores indicate more severe mood symptoms. EPDS was administered once every 2 weeks for the duration of the study. Analysis was calculated as the mean of scores for baseline (week 16) and weeks 18 and 20.

Time frame: Weeks 16, 18, and 20

Population: Analysis applies to participants in study 2. Two participants did not complete rating in week 16. One participant did not complete rating in week 18. Two participants did not complete rating in week 20.

ArmMeasureGroupValue (MEAN)Dispersion
Arm 1a - Postpartum Depression: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 181.22 Units on a scaleStandard Deviation 3.31
Arm 1a - Postpartum Depression: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 163.75 Units on a scaleStandard Deviation 6.32
Arm 1a - Postpartum Depression: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 201 Units on a scaleStandard Deviation 1.93
Arm 1b - Depression, Non-reproductive: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 180 Units on a scale
Arm 1b - Depression, Non-reproductive: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 163 Units on a scale
Arm 1b - Depression, Non-reproductive: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 200 Units on a scale
Arm 1c - Healthy Volunteer: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 200.2 Units on a scaleStandard Deviation 0.45
Arm 1c - Healthy Volunteer: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 160 Units on a scaleStandard Deviation 0
Arm 1c - Healthy Volunteer: Hormone WithdrawalEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 180 Units on a scaleStandard Deviation 0
Arm 2a - Postpartum Depression: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 203.71 Units on a scaleStandard Deviation 4.54
Arm 2a - Postpartum Depression: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 182.29 Units on a scaleStandard Deviation 2.36
Arm 2a - Postpartum Depression: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 161.14 Units on a scaleStandard Deviation 1.07
Arm 2b - Depression, Non-reproductive: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 200.5 Units on a scaleStandard Deviation 0.71
Arm 2b - Depression, Non-reproductive: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 160.5 Units on a scaleStandard Deviation 0.71
Arm 2b - Depression, Non-reproductive: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 180 Units on a scale
Arm 2c - Healthy Volunteer: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 160.67 Units on a scaleStandard Deviation 1.21
Arm 2c - Healthy Volunteer: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 200.67 Units on a scaleStandard Deviation 0.82
Arm 2c - Healthy Volunteer: Hormone ContinuationEdinburgh Postnatal Depression Scale (EPDS) Mean Total ScoreWeek 180.29 Units on a scaleStandard Deviation 0.49

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