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ALKS 2680

Phase 3

Narcolepsy Type 1 | Small molecule | Neurology |Alkermes plc|Trials Updated: Oct 9, 2026

ALKS 2680 development status

Highest phase Phase 3
Registered trials 4 across 1 sponsor since Apr 2024

ALKS 2680 target and mechanism

Molecular targetOX2R
Target classReceptor
ModalitySmall molecule

Also known as ALKS 2680 Dose 1

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials7
Total Enrollment1,573

FDA Designations

No designations recorded

ALKS 2680 clinical trials

ALKS 2680 · 7 trials · 3 indications

Phase 3 3Phase 2 4
NCT07540897A Study to Evaluate the Efficacy, Safety and Tolerability of ALKS 2680 in Adults With Narcolepsy Type 1 (Brilliance NT1 - 304)Narcolepsy Type 1
RECRUITING150 Analytics
NCT07502443A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 2Narcolepsy Type 2
RECRUITING176 Analytics
NCT07455383A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 1Narcolepsy Type 1
RECRUITING150 Analytics
PHASE3RECRUITING
A Study to Evaluate the Efficacy, Safety and Tolerability of ALKS 2680 in Adults With Narcolepsy Type 1 (Brilliance NT1 - 304)
Narcolepsy Type 1Unlock trial analytics
PHASE3RECRUITING
A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 2
Narcolepsy Type 2Unlock trial analytics
PHASE3RECRUITING
A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 1
Narcolepsy Type 1Unlock trial analytics

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
Change in Epworth Sleepiness Scale (ESS) from baseline to Week 8 by dose level
Up to 8 weeks
Incidence of Treatment-Emergent Adverse Events
Up to 248 Weeks
Change in Mean Sleep Latency (MSL) on the Maintenance Wakefulness Test (MWT)
Baseline to Week 8
Change in Epworth Sleepiness Scale (ESS)
Baseline to week 8

Participants will be asked to complete the ESS, reporting on the level of sleepiness they experienced over the past 7 days.

Change in Mean Sleep Latency (MSL) on the Maintenance of Wakefulness Test (MWT) from baseline to Week 6
Baseline to Week 6

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 -
ALKS 2680 Dose 3EXPERIMENTAL -
ALKS 2680, 10 mg- Part AEXPERIMENTALOral tablet containing 10 mg of ALKS 2680 for once daily administration
ALKS 2680, 14 mg -Part AEXPERIMENTALOral tablet containing 14 mg of ALKS 2680 for once daily administration
ALKS 2680, 18 mg- Part AEXPERIMENTALOral tablet containing 18 mg of ALKS 2680 for once daily administration
Placebo- Part APLACEBO_COMPARATOROral placebo tablet for once daily administration
ALKS 2680 Dose 1- Part BEXPERIMENTALOral tablets of ALKS 2680 taken, orally, daily
Placebo - Part BPLACEBO_COMPARATOROral tablets of placebo taken, orally, daily
Narcolepsy Type 1 (NT1)EXPERIMENTAL -
Narcolepsy Type 2 (NT2)EXPERIMENTAL -
Idiopathic Hypersomnia (IH)EXPERIMENTAL -
ALKS 2680, 10 mgEXPERIMENTALOral tablet containing 10mg of ALKS 2680 for once daily administration
ALKS 2680, 14 mgEXPERIMENTALOral tablet containing 14mg of ALKS 2680 for once daily administration
ALKS 2680, 18 mgEXPERIMENTALOral tablet containing 18mg of ALKS 2680 for once daily administration
4 mg ALKS 2680EXPERIMENTAL -
6 mg ALKS 2680EXPERIMENTAL -
8 mg ALKS 2680EXPERIMENTAL -

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
ALKS 2680 Dose 3DRUGParticipants will receive ALKS 2680 tablets, daily, orally, for 12 weeks
ALKS 2680DRUGOral tablet containing ALKS 2680 for daily, oral administration
ALKS 2680, 4mgDRUGOral tablet containing 4 mg of ALKS 2680 for once daily administration
ALKS 2680, 6mgDRUGOral tablet containing 6 mg of ALKS 2680 for once daily administration
ALKS 2680, 8mgDRUGOral tablet containing 8 mg of ALKS 2680 for once daily administration
ALKS 2680, 10mgDRUGOral tablet containing 10 mg of ALKS 2680 for once daily administration
ALKS 2680, 14mgDRUGOral tablet containing 14 mg of ALKS 2680 for once daily administration
ALKS 2680, 18mgDRUGOral tablet containing 18 mg of ALKS 2680 for once daily administration
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Eligibility Criteria

Age Range18 Years to 70 Years
SexALL
Healthy VolunteersNo
Study Sites20

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 StatesBelgiumCanadaJapanPolandAustraliaFranceItalyNetherlandsSpainTaiwanCzechia
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Recent Changes (Last 90 Days)

MEDIUMOct 9, 2026NCT06767683Enrollment: 256 → 786
MEDIUMOct 9, 2026NCT06767683Enrollment: 256 → 786
LOWOct 7, 2026NCT07502443lastUpdatePostDate: changed
LOWOct 7, 2026NCT07540897lastUpdatePostDate: changed
LOWOct 7, 2026NCT07455383lastUpdatePostDate: changed
LOWOct 7, 2026NCT07502443lastUpdatePostDate: changed
LOWOct 7, 2026NCT07540897lastUpdatePostDate: changed
LOWOct 7, 2026NCT07455383lastUpdatePostDate: changed
MEDIUMSep 25, 2026NCT06843590Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMSep 25, 2026NCT06843590Status: RECRUITING → ACTIVE_NOT_RECRUITING
LOWSep 3, 2026NCT07540897startDate: changed
LOWSep 3, 2026NCT07502443lastUpdatePostDate: changed
LOWSep 3, 2026NCT07455383lastUpdatePostDate: changed
LOWSep 3, 2026NCT07540897startDate: changed
LOWSep 3, 2026NCT07502443lastUpdatePostDate: changed
LOWSep 3, 2026NCT07455383lastUpdatePostDate: changed
LOWAug 7, 2026NCT07540897startDate: changed
LOWAug 7, 2026NCT07502443lastUpdatePostDate: changed
LOWAug 7, 2026NCT06767683lastUpdatePostDate: changed
LOWAug 7, 2026NCT07455383lastUpdatePostDate: changed

Frequently asked questions about ALKS 2680

What is ALKS 2680 used for?

ALKS 2680 is an investigational small molecule being developed to treat sleep-wake disorders: idiopathic hypersomnia, narcolepsy type 1, and narcolepsy type 2. It is not yet approved and remains in clinical development. Alkermes plc is studying it in adults 18 years and older across multiple countries.

What does ALKS 2680 target?

ALKS 2680 targets OX2R, the orexin-2 receptor. It is a small molecule designed to act at this receptor, which is involved in regulating wakefulness. By targeting OX2R, the drug aims to address the excessive daytime sleepiness associated with narcolepsy and idiopathic hypersomnia.

Who is developing ALKS 2680?

ALKS 2680 is being developed by Alkermes plc, which trades on the Nasdaq under the ticker ALKS. The company is running a clinical program that includes Phase 3 trials in narcolepsy type 1 and type 2, and a Phase 2 trial in idiopathic hypersomnia.

What phase is ALKS 2680 in?

ALKS 2680 is in Phase 2 and Phase 3 clinical development. Three Phase 3 trials are currently recruiting for narcolepsy type 1 and type 2, while one Phase 2 trial in idiopathic hypersomnia is active but no longer recruiting. The program has enrolled about 1,178 participants across four trials.

What clinical trials is ALKS 2680 in?

ALKS 2680 is being studied in four registered trials. These include NCT07540897 and NCT07455383 in narcolepsy type 1, NCT07502443 in narcolepsy type 2, and NCT06843590 in idiopathic hypersomnia. The narcolepsy trials are randomized, double-blind, placebo-controlled Phase 3 studies; the idiopathic hypersomnia trial is Phase 2.