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SAGE-547 60 μg/kg/h

Phase 3

Postpartum Depression | Small molecule | Psychiatry |Supernus Pharmaceuticals, Inc.|Last Updated: Oct 14, 2025

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLED
Total Trials1
Total Enrollment138

FDA Designations

No designations recorded

Clinical trial landscape

SAGE-547 60 μg/kg/h · 1 trial · 1 indication

Phase 3 1
NCT02942004A Study to Evaluate Efficacy and Safety of SAGE-547 in Participants With Severe Postpartum Depression (547-PPD-202B)Postpartum Depression
COMPLETED138 Analytics
PHASE3COMPLETED
A Study to Evaluate Efficacy and Safety of SAGE-547 in Participants With Severe Postpartum Depression (547-PPD-202B)
Postpartum DepressionUnlock trial analytics

Study Endpoints

Primary Endpoints

Change From Baseline at 60 Hours in the 17-Item Hamilton Rating Scale for Depression (HAM-D) Total Score
Baseline, Hour 60

The HAM-D Total Score comprises a sum of the 17 individual item scores. Items scored in a range of 0 to 2 include: insomnia (early, middle, late), somatic symptoms (gastrointestinal and general), genital symptoms, loss of weight, and insight. The following items are scored in a range of 0 to 4: agitation, depressed mood, feelings of guilt, suicide, work and activities, retardation, anxiety (psychic and somatic), and hypochondriasis. The Total Score can range from 0 to 52, and higher scores indicate a greater degree of depression. Higher scores indicate a greater degree of depression. A negative change from baseline indicates less depression. A positive change from baseline indicates more depression.

Secondary Endpoints

Change From Baseline in HAM-D Total Score at Day 30
Baseline, Day 30
Change From Baseline in HAM-D Total Score
Baseline, Hours 2, 4, 8, 12, 24, 36, 48, 72, and Days 7, 14, and 21
Percentage of Participants With HAM-D Response
Hour 60, Days 7 and 30
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
PlaceboPLACEBO_COMPARATORParticipants received infusion rates equivalent to either the 60 micrograms per kilogram per hour (μg/kg/h) or 90 μg/kg/h group.
SAGE-547 60 μg/kg/hEXPERIMENTALParticipants received a 4-hour titration period of 30 μg/kg/h (0 to 4 hours), then 60 μg/kg/h (4 to 56 hours), followed by a taper to 30 μg/kg/h (56 to 60 hours).
SAGE-547 90 μg/kg/hEXPERIMENTALParticipants received a 4-hour dose titration period of 30 μg/kg/h (0 to 4 hours), then 60 μg/kg/h (4 to 24 hours), then 90 μg/kg/h (24 to 52 hours), followed by a taper to 60 μg/kg/h (52 to 56 hours), and 30 μg/kg/h (56 to 60 hours).

Interventions

NameTypeDescription
PlaceboDRUGIntravenous infusion of matching placebo for either SAGE-547 60 μg/kg/h or 90 μg/kg/h.
SAGE-547 60 μg/kg/hDRUGIntravenous infusion of SAGE-547.
SAGE-547 90 μg/kg/hDRUGIntravenous infusion of SAGE-547.
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Eligibility Criteria

Age Range18 Years to 45 Years
SexFEMALE
Healthy VolunteersNo
Study Sites32

Key Inclusion Criteria: * Participants must have ceased lactating at screening; or if still lactating or actively breastfeeding at screening, agreed to temporarily cease giving breastmilk to their infant(s) from just prior to receiving study drug through nine days (Day 12) after the end of the infu...

Countries:United States
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Frequently asked questions about SAGE-547 60 μg/kg/h

What is SAGE-547 60 μg/kg/h used for?

SAGE-547 60 μg/kg/h is an investigational small molecule being studied for the treatment of postpartum depression. It is a synthetic neurosteroid that has been evaluated in a Phase 3 clinical trial for this condition. The drug is administered intravenously at a dose of 60 μg/kg/h.

What does SAGE-547 60 μg/kg/h target?

SAGE-547 60 μg/kg/h is a small molecule that acts as a positive allosteric modulator of GABA-A receptors. By enhancing the inhibitory effects of GABA, it aims to rapidly reduce the symptoms of postpartum depression. This mechanism is thought to help restore the balance of excitatory and inhibitory signaling in the brain.

Who makes SAGE-547 60 μg/kg/h?

SAGE-547 60 μg/kg/h is being developed by Supernus Pharmaceuticals, Inc., a biopharmaceutical company. The company is listed on the NASDAQ under the ticker symbol SUPN. Supernus is conducting clinical trials to evaluate the safety and efficacy of this drug for postpartum depression.

What phase is SAGE-547 60 μg/kg/h in?

SAGE-547 60 μg/kg/h is in Phase 3 clinical development. It has completed a Phase 3 trial for postpartum depression, but it is not yet approved by the FDA. The drug remains investigational and is still undergoing clinical evaluation to determine its safety and effectiveness.

What clinical trials is SAGE-547 60 μg/kg/h in?

SAGE-547 60 μg/kg/h has been studied in a Phase 3 clinical trial with the identifier NCT02942004. This trial, titled 'A Study to Evaluate Efficacy and Safety of SAGE-547 in Participants With Severe Postpartum Depression,' was completed in the United States. It enrolled 138 female participants aged 18 years and older.

Is SAGE-547 60 μg/kg/h the same as brexanolone?

SAGE-547 60 μg/kg/h is a formulation of brexanolone, a synthetic neurosteroid. Brexanolone is the generic name for this compound, which has been studied for postpartum depression. The drug is also known by the brand name Zulresso in some contexts, though this specific dosage form is being developed by Supernus Pharmaceuticals.