Recent Updates
Recently added Catalysts

HBS-104

Phase 1

Sleep Deprivation | Small molecule | Psychiatry |Harmony Biosciences Holdings, Inc.|Last Updated: Sep 30, 2026

Development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Sep 2026

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindACTIVE_CONTROLLED
Total Trials1
Total Enrollment12

FDA Designations

No designations recorded

Clinical trial landscape

HBS-104 · 1 trial · 1 indication

Phase 1 1
NCT07848659Study of Single Doses of HBS-104 in Acutely Sleep-deprived Healthy ParticipantsSleep Deprivation
RECRUITING12 Analytics
PHASE1RECRUITING
Study of Single Doses of HBS-104 in Acutely Sleep-deprived Healthy Participants
Sleep DeprivationUnlock trial analytics

Study Endpoints

Primary Endpoints

Mean Sleep Latency as Assessed by Maintenance of Wakefulness Test (MWT)
Day 2 of each treatment period (each treatment period is 4 days in duration [Days -1 to 3]).
Karolinska Sleepiness Scale (KSS) Score
Days 1 and 2 of each treatment period (each treatment period is 4 days in duration [Days -1 to 3]).
Psychomotor Vigilance Test (PVT) Score
Days 1 and 2 of each treatment period (each treatment period is 4 days in duration [Days -1 to 3]).

Secondary Endpoints

Number of Participants with Treatment Emergent Adverse Events
Up to 25 weeks
Serum Concentrations of HBS-104 and Metabolites
Days 1, 2 and 3 of each treatment period (each treatment period is 4 days in duration [Days -1 to 3]).
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelCROSSOVER
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Crossover: HBS-104 Low DoseEXPERIMENTALParticipants will receive a single oral low dose of HBS-104.
Crossover: HBS-104 Medium DoseEXPERIMENTALParticipants will receive a single oral medium dose of HBS-104.
Crossover: HBS-104 High DoseEXPERIMENTALParticipants will receive a single oral high dose of HBS-104.
Crossover: PlaceboACTIVE_COMPARATORParticipants will receive a single oral dose of placebo.

Interventions

NameTypeDescription
HBS-104DRUGImmediate-release tablets for oral use
PlaceboDRUGMatching placebo tablet
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Provide written informed consent before any study-related procedures are performed. * Be healthy as determined by assessments at the Screening Visit. Exclusion Criteria: * Female with a positive pregnancy test at Screening Visit or upon check-in for Period 1. * Is currently ...

Countries:United States
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWSep 30, 2026NCT07848659NEW_TRIAL: changed
LOWSep 30, 2026NCT07848659NEW_TRIAL: changed

Frequently asked questions about HBS-104

What is HBS-104?

HBS-104 is an investigational small molecule being developed by Harmony Biosciences Holdings, Inc. for sleep deprivation. It is in Phase 1 clinical development and is not approved for any use. The program is being studied in healthy adult volunteers who are acutely sleep deprived.

What is HBS-104 used for?

HBS-104 is being studied for sleep deprivation. The only clinical trial of HBS-104 to date enrolls acutely sleep-deprived healthy participants, and the drug remains investigational. No approved indication exists for HBS-104, and its use is currently limited to clinical research.

Who makes HBS-104?

HBS-104 is being developed by Harmony Biosciences Holdings, Inc., which trades on the Nasdaq under the ticker HRMY. Harmony Biosciences is the sponsor of the HBS-104 clinical program, including the ongoing Phase 1 study in acutely sleep-deprived healthy participants.

What phase is HBS-104 in?

HBS-104 is in Phase 1 clinical development. One Phase 1 trial has been initiated and is currently recruiting; no Phase 1 trial of HBS-104 has been completed. HBS-104 is investigational and has not been approved by the FDA for any indication.

What clinical trials is HBS-104 in?

HBS-104 is being evaluated in a single Phase 1 trial, NCT07848659, titled "Study of Single Doses of HBS-104 in Acutely Sleep-deprived Healthy Participants." The trial is recruiting in the United States, plans to enroll 12 healthy adult volunteers, and uses a randomized, double-blind, active-controlled design.