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SAGE-904

Phase 1

Healthy Volunteer | Small molecule | Other |Supernus Pharmaceuticals, Inc.|Last Updated: Sep 17, 2025

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment22

FDA Designations

No designations recorded

Clinical trial landscape

SAGE-904 · 1 trial · 1 indication

Phase 1 1
NCT05049343Study of SAGE-904 Using a Ketamine Challenge to Evaluate Electrophysiology, Safety, Tolerability, and Pharmacokinetics in Healthy ParticipantsHealthy Volunteer
COMPLETED22 Analytics
PHASE1COMPLETED
Study of SAGE-904 Using a Ketamine Challenge to Evaluate Electrophysiology, Safety, Tolerability, and Pharmacokinetics in Healthy Participants
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Study Endpoints

Primary Endpoints

Change in Electrophysiological Parameter: Auditory Evoked Potential (AEP) in a Single-stimulus Paradigm Before and After Ketamine Infusion in Participants Receiving SAGE-904 Versus (vs) Participants Receiving Placebo
Pre-dose and post-dose on Days 1 and 11

AEP variables will include individual amplitudes of N100 and P200 responses and the derived peak-to-peak amplitude of these responses (N100-P200) in microvolts (µV).

Change in Electrophysiological Parameter: Mismatch Negativity (MMN) Before and After Ketamine Infusion in Participants Receiving SAGE-904 vs Participants Receiving Placebo
Pre-dose and post-dose on Days 1 and 11

MMN is a response to nonmatching sounds in a series of matching sounds. Two tones of the same frequency and sound intensity, but differing in duration, will be sequentially presented to the participant through insert earphones. MMN amplitude will be measured from the peak of a mid-latency negative voltage deflection in the difference waveform representing the response to deviant stimuli in µV.

Change in Electrophysiological Parameter: Auditory Steady-state Response (ASSR) Power Before and After Ketamine Infusion in Participants Receiving SAGE-904 vs Participants Receiving Placebo
Pre-dose and post-dose on Days 1 and 11

ASSR is used to assess the integrity of sensory pathways including cortical processing. ASSR will be measured at midline central electrode (Cz) of electroencephalogram (EEG) to assess the response in hertz (Hz). In ASSR, streams of "click" stimuli will be presented at a rate of 40 Hz while the participant will be instructed to fix their gaze on a white cross displayed on a computer monitor.

Change in Electrophysiological Parameter: P300 in a Target Detection Paradigm as Assessed by Auditory Response Before and After Ketamine Infusion in Participants Receiving SAGE-904 vs Participants Receiving Placebo
Pre-dose and post-dose on Days 1 and 11

Improvement of the P300 auditory response time in milliseconds using P300 AEP in a target detection paradigm by an increase in amplitude and/or a decrease in latency will be analyzed. In this paradigm, 2 tones of the same sound intensity, but differing in frequency, are sequentially presented to the participant through insert earphones. The "standard" (low frequency) stimuli will be presented on the majority of trials, with a "target" (high frequency) stimuli presented periodically at random. The participant is told to listen for the "target" stimuli and press a button on the handset as fast as they can. The endpoint variables of P300 amplitude and latency in correlation with the button press reaction time will be used to assess the response time.

Secondary Endpoints

Number of Participants with Treatment Emergent Adverse Events (TEAEs)
Up to Day 25
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
SAGE-904 then PlaceboEXPERIMENTALSAGE-904 in combination with ketamine, followed by a washout period, followed by placebo in combination with ketamine.
Placebo then SAGE-904PLACEBO_COMPARATORPlacebo in combination with ketamine, followed by a washout period, followed by SAGE-904 in combination with ketamine.

Interventions

NameTypeDescription
SAGE-904DRUGSAGE-904 oral solution.
PlaceboDRUGPlacebo oral solution.
KetamineDRUGKetamine intravenous (IV) infusion.
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Eligibility Criteria

Age Range21 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: 1. Participant is willing and able to provide 2 forms of identification; at least 1 must have a photo 2. Participant has a body weight ≥50 kilograms (kg) and body mass index ≥18.0 and ≤30.0 kilograms per square meter (kg/m\^2) at screening 3. Participant is healthy with no histo...

Countries:United States
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Frequently asked questions about SAGE-904

What is SAGE-904?

SAGE-904 is an investigational small molecule being developed by Supernus Pharmaceuticals, Inc. (NASDAQ: SUPN). It is currently in Phase 1 clinical development, having completed a study in healthy volunteers. The drug is being evaluated for its electrophysiology, safety, tolerability, and pharmacokinetics.

What does SAGE-904 target?

The specific molecular target of SAGE-904 has not been disclosed. The completed Phase 1 study used a ketamine challenge to evaluate the drug's effects on electrophysiology in healthy participants, but the precise biological target or mechanism of action has not been publicly detailed.

Who makes SAGE-904?

SAGE-904 is being developed by Supernus Pharmaceuticals, Inc., a biopharmaceutical company traded on NASDAQ under the ticker symbol SUPN. The company is conducting clinical research on this investigational small molecule drug candidate.

What phase is SAGE-904 in?

SAGE-904 is in Phase 1 clinical development. A Phase 1 study has been completed, and the drug remains investigational. It has not been approved by the FDA or any other regulatory authority, and it is still in the early stages of clinical evaluation.

What clinical trials is SAGE-904 in?

SAGE-904 has one completed clinical trial, registered as NCT05049343. This Phase 1 study evaluated the drug using a ketamine challenge to assess electrophysiology, safety, tolerability, and pharmacokinetics in 22 healthy participants in the United States. The trial was randomized, double-blind, and placebo-controlled.

Is SAGE-904 the same as another drug?

No alternative names for SAGE-904 have been disclosed. The drug is identified solely by its development code SAGE-904, and no other brand names or aliases have been publicly associated with this investigational compound.