Recent Updates
Recently added Catalysts

NBI-827104

Phase 2

Epileptic Encephalopathy | Small molecule | Other |Neurocrine Biosciences, Inc.|Last Updated: Sep 5, 2025

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
Premium
Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
Premium
Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment24
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT04625101Efficacy, Safety, Tolerability, and Pharmacokinetics of NBI-827104 in Pediatric Subjects With Epileptic Encephalopathy With Continuous Spike-and-Wave During SleepPHASE2 COMPLETED 24Apr 26, 2021Oct 11, 2022Sep 5, 202515 United States, Canada +4
Unlock Drug Trial Details
Study Endpoints
Primary Endpoints
Ratio of Spike-Wave Index (SWI) During First Hour of Nonrapid Eye Movement (NREM) Sleep at Week 6
Baseline to Week 6

The ratio of SWI at the end of Week 6 to baseline during the first hour (60 minutes) of NREM sleep based on centralized video-electroencephalograph (EEG) reading using a log base 10 scale. Baseline was defined as the last value measured prior to intake of study treatment on Day 1. SWI was defined as the percentage of seconds with ≥1 spike-wave complex(es) during defined periods of overnight NREM sleep.

Secondary Endpoints
Ratio of SWI During First Hour of NREM Sleep at Week 12
Baseline to Week 12
Number of Participants Considered as Responders as Assessed by the Caregiver Global Impression of Change (CaGI-C) Score
Week 6 and Week 12
Number of Participants Considered as Responders as Assessed by the Clinician Global Impression of Change (CGI-C) Score
Week 6 and Week 12
Unlock Study Endpoints
Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
NBI-827104EXPERIMENTALNBI-827104 administered orally for 13 weeks.
PlaceboPLACEBO_COMPARATORPlacebo administered orally for 13 weeks.
Interventions
NameTypeDescription
NBI-827104DRUGTriple T-type calcium channel blocker.
PlaceboDRUGNon-active dosage form.
Unlock Study Design Details
Eligibility Criteria
Age Range4 Years — 12 Years
SexALL
Healthy VolunteersNo
Study Sites15

Inclusion Criteria: 1. Signed informed consent by the parent(s) or legal representative(s) and, if applicable, assent from developmentally capable pediatric subjects. 2. Diagnosis of EECSWS. 3. Have diagnosis of EECSWS confirmed by the Diagnosis Confirmation Panel (DCP). 4. Stable dosage and stable...

Countries:United StatesCanadaDenmarkSpainSwitzerlandUnited Kingdom
Unlock Eligibility Criteria