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ALKS 2680 Dose 1

Phase 3

Narcolepsy Type 1 | Small molecule | Other |Alkermes plc|Last Updated: Jun 4, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment300
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT07540897A Study to Evaluate the Efficacy, Safety and Tolerability of ALKS 2680 in Adults With Narcolepsy Type 1 (Brilliance NT1 - 304)PHASE3 RECRUITING 150May 1, 2026Jul 1, 2027May 27, 20261 United States
NCT07455383A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 1PHASE3 RECRUITING 150Apr 6, 2026Jun 1, 2027Jun 4, 202617 United States, Canada
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Study Endpoints
Primary Endpoints
Change in mean sleep latency (MSL) on Maintenance of Wakefulness Test (MWT) from baseline to Week 12 by dose level
Baseline to Week 12
Secondary Endpoints
Change in Epworth Sleepiness Scale (ESS) from baseline to Week 12 by dose level
Baseline to Week 12
Weekly cataplexy rate (WCR) at Week 12 by dose level
Week 12
Percentage of participants who achieve a status of "none" or "mild" on Patient Global Impression- Severity (PGI-S) scale(general disease) at Week 12 by dose level
Week 12
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Study Design & Arms
AllocationRANDOMIZED
MaskingTRIPLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
ALKS 2680 Dose 1EXPERIMENTAL -
ALKS 2680 Dose 2EXPERIMENTAL -
PlaceboPLACEBO_COMPARATOR -
Interventions
NameTypeDescription
ALKS 2680 Dose 1DRUGParticipants will receive ALKS 2680 tablets, daily, orally, for 12 weeks
ALKS 2680 Dose 2DRUGParticipants will receive ALKS 2680 tablets, daily, orally, for 12 weeks
PlaceboDRUGParticipants will receive placebo tablets, daily, orally for 12 weeks
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Eligibility Criteria
Age Range18 Years — 70 Years
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * Meets the diagnostic criteria of NT1 according to ICSD-3-TR guidelines, confirmed by diagnostic evaluations (either PSG/MSLT\* or CSF hypocretin-1 level) Exclusion Criteria: * Has another comorbid sleep disorder or condition that may influence the sleep-wake cycle. * Has a h...

Countries:United StatesCanada
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Recent Changes (Last 90 Days)
LOWJun 4, 2026NCT07455383lastUpdatePostDate: changed
LOWJun 4, 2026NCT07455383lastUpdatePostDate: changed
LOWJun 4, 2026NCT07455383lastUpdatePostDate: changed
LOWJun 4, 2026NCT07455383lastUpdatePostDate: changed
LOWMay 28, 2026NCT07540897lastUpdatePostDate: changed
LOWMay 28, 2026NCT07540897lastUpdatePostDate: changed
LOWMay 26, 2026NCT07540897Status: NOT_YET_RECRUITING → RECRUITING
LOWMay 26, 2026NCT07455383Status: NOT_YET_RECRUITING → RECRUITING
LOWMay 24, 2026NCT07540897studyFirstPostDate: changed
LOWMay 24, 2026NCT07455383studyFirstPostDate: changed
LOWMay 21, 2026NCT07540897NEW_TRIAL: changed
LOWMay 21, 2026NCT07540897NEW_TRIAL: changed