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Narcolepsy clinical trials

The registry lists 157 studies for Narcolepsy across more than 10 countries. 37 are recruiting or about to start. 117 of them are mainly about Narcolepsy (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-03. Counting its narrower condition Cataplexy too: 159 studies, 37 open.

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Status

Completed
100
Recruiting
30
Status unknown
7
Terminated
6
Not yet recruiting
5
No longer available
2

Phase

Phase 3
36
Phase 2
30
Phase 1
20
Phase 4
4
Early Phase 1
1

Where

United States
85
France
47
Canada
24
Spain
22
Italy
21
Netherlands
16

Who runs them

Jazz Pharmaceuticals (17) · Takeda (16) · Hospices Civils de Lyon (8) · Cephalon (7) · Bioprojet (7) · Axsome Therapeutics, Inc. (5) · Harmony Biosciences Management, Inc. (4) · Alkermes, Inc. (4)

What is being tested here

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

DrugOpenPhase 3All
Sodium Oxybate148
Oxybate148
JZP258125
Alixorexton113
Mazindol113
Ledasorexton102
Samelisant112
HBS-301111
TAK-360101
Modafinil0710

Drug classes tested here Stimulants 1 open

Coming up

9phase 3 studies under way
19studies finish main data collection within a year5 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 Narcolepsy studies recruiting now, 12 (40%) set no upper age limit and 16 (53%) stop at 75 or younger. 12 (40%) take children under 18. 2 (7%) are for women only and 0 (0%) for men only; 6 (20%) take healthy volunteers.

Recruiting studies that take each age, of 30
AgeWomenMen
1010 (33%)8 (27%)
1829 (97%)27 (90%)
3029 (97%)27 (90%)
4029 (97%)27 (90%)
5029 (97%)27 (90%)
6524 (80%)22 (73%)
7516 (53%)14 (47%)
8514 (47%)12 (40%)

Across all 157 studies, recruiting or not: 57% stop at 75 or younger and 39% at 65; 34% take children; 3% are for women only and 1% for men only; 24% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Narcolepsy studies take

Of 15 phase 2 interventional studies under Narcolepsy, half reached primary completion within 14 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 18 mo3–11 · 13 studies——
Phase 214 mo11–44 · 15 studies——
Phase 330 mo21–40 · 14 studies——
Interventional, no phase23 mo15–42 · 21 studies——
Observational61 mo14–73 · 19 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

Studies

Recruiting first, then most recently updated. Showing 50 of 157. Browse all 157 → or search them.