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Disorders of Excessive Somnolence clinical trials

The registry lists 196 studies for Disorders of Excessive Somnolence across more than 10 countries. 34 are recruiting or about to start. 42 of them are mainly about Disorders of Excessive Somnolence (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-13. Counting its 3 narrower conditions too, such as Narcolepsy: 334 studies, 73 open.

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Status

Completed
125
Recruiting
30
Terminated
11
Status unknown
11
Withdrawn
8
Active, not recruiting
4

Phase

Phase 3
47
Phase 2
35
Phase 4
14
Phase 1
9
Early Phase 1
2

Where

United States
100
France
30
Canada
23
Switzerland
11
Australia
9
Netherlands
9

Who develops what

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Every programme with a company-led study here in the last two years, whatever its size: 9 programmes from 6 companies, 2 with this as their studies’ main aim; 6 with a live phase 3 study; 7 primary completions in the next 12 months.

Comparator & background therapies

What other companies’ phase 2+ studies give as the comparator or the background here (its leading trial sponsor and partners left out): a sign of what new drugs are measured against, not by itself the standard of care, its prescriptions or its market.

None given by two companies or more yet.

Programmes

“Meets, by arms” reads each study’s arms: vs its arm against the therapy’s; + X vs a combination against it; added to it plus the therapy against the therapy; studied with given together only. The next primary completion is the next phase-3 study’s when there is one.

In phase 3Company
solriamfetolApproved: US 2019 · EU 20202 live phase-3 studies: NCT07484217, NCT06568367Axsome Therapeutics, Inc.

The 1 in phase 3 with the nearest primary completion, of 9 programmes — sign in to see the whole list, free: filter by phase and aim, sort by late development, direct comparisons or the next primary completion.

Primary completion in the next 12 months (7)

Live phase 2 and 3 studies of these programmes. Primary completion is when the main measure’s data collection ends, as the registry states it (most are estimates); results come later, if they are announced.

  • Nov 2026 est.alixorexton · Alkermes, Inc. · Phase 2 named, not the main aimNCT06843590 A Study to Evaluate the Safety and Effectiveness of ALKS 2680 in Subjects With Idiopathic Hypersomnia — primary endpoint: Change in Epworth Sleepiness Scale (ESS) from baseline to Week 8 by dose level · 126 enrolled
  • Dec 2026 est.solriamfetol · Axsome Therapeutics, Inc. · Phase 3 main aimNCT06568367 Studying Solriamfetol Modulation of TAAR-1, Dopamine, and Norepinephrine in Shift Work Disorder (SUSTAIN) — primary endpoint: Change from Baseline to Week 12 in the mean sleep latency time as measured by the Maintenance of Wakefulness Test (MWT). · 520 enrolled
  • May 2027 est.alixorexton · Alkermes, Inc. · Phase 3 named, not the main aimNCT07502443 A Study to Evaluate the Efficacy and Safety of ALKS 2680 in Adults With Narcolepsy Type 2 — primary endpoint: Change in mean sleep latency (MSL) on Maintenance of Wakefulness Test (MWT) from baseline to Week 12 by dose level · 176 enrolled

4 more — sign in to see them all, free.

Read from ClinicalTrials.gov, industry-led studies. Main aim: this is the study’s judged main condition; named, not the main aim: the sponsor names it, the study is about something else; registry mapping only: only the registry’s mapping put it here. Leading trial sponsor is the company leading the most industry studies of a drug, a measure of trial activity, not of rights. US and EU rights, and Approved: from the regulators’ records (FDA’s Drugs@FDA via openFDA; EMA’s medicines data) — the holder of a marketed or authorised original, generics and other companies’ versions; not rights elsewhere, nor approval for this condition. Phase 4 trial recorded, where neither lists it: a phase 4 study exists somewhere. Not read yet: labels by indication, exclusivity, licences, line of therapy, academic comparators, sales.

What is being tested here

Drugs under test in Disorders of Excessive Somnolence studies, those with the most open studies first. Medicines only given beside them are not counted. How drugs are counted

Drug classes tested here Stimulants 24

Coming up

17studies finish main data collection within a year8 of them phase 3

Studies recruiting or running, from their records. “Main data collection” ends at the primary completion date, the sponsor’s own estimate, which often moves.

The 10 nearest, phase 3 first

Who these studies take

Of the 30 Disorders of Excessive Somnolence studies recruiting now, 12 (40%) set no upper age limit and 17 (57%) stop at 75 or younger. 5 (17%) take children under 18. 0 (0%) are for women only and 0 (0%) for men only; 7 (23%) take healthy volunteers.

Recruiting studies that take each age, of 30
AgeWomenMen
104 (13%)4 (13%)
1830 (100%)30 (100%)
3028 (93%)28 (93%)
4028 (93%)28 (93%)
5027 (90%)27 (90%)
6525 (83%)25 (83%)
7513 (43%)13 (43%)
8512 (40%)12 (40%)

Across all 196 studies, recruiting or not: 52% stop at 75 or younger and 39% at 65; 16% take children; 1% are for women only and 3% for men only; 24% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Disorders of Excessive Somnolence studies take

Of 15 phase 2 interventional studies under Disorders of Excessive Somnolence, half reached primary completion within 19 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 219 mo15–34 · 15 studies——
Interventional, no phase22 mo7–35 · 34 studies—22 mo9–35 · 32 studies

Each figure is the month by which half the studies had reached primary completion, with the range in which the middle half did. Studies still running count until their last registry update; studies that stopped early are left out. Phase 1 includes early phase 1; observational means prospective or not stated, as retrospective and cross-sectional studies date a window of data rather than a study. How these figures are worked out

What changed recently

From the registry's own updates since Oct 15, 2026.

Studies

Recruiting first, then most recently updated. Showing 50 of 196. Browse all 196 → or search them.