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Sleep Apnea, Obstructive clinical trials

The registry lists 2,240 studies for Sleep Apnea, Obstructive across more than 10 countries. 475 are recruiting or about to start. 1,799 of them are mainly about Sleep Apnea, Obstructive (how this is decided). Per ClinicalTrials.gov, last updated 2026-11-10. Counting its narrower condition Obesity Hypoventilation Syndrome too: 2,301 studies, 482 open.

ClinicalTrials.gov finds 2,589 studies for Sleep Apnea, Obstructive. How that becomes 2,238 here

This page counts the studies the registry files under Sleep Apnea, Obstructive, and those it files under no condition that list Sleep Apnea, Obstructivethemselves. Each study its search finds is placed by how the registry filed it and by the conditions it lists. ClinicalTrials.gov counts as of Nov 8, 2026. How condition pages count

  1. 2,589Found by its condition searchIt reads the conditions a study lists and their synonyms, and also titles and keywords.
  2. −61Filed under a narrower condition, counted on its own pageObesity Hypoventilation Syndrome 61
  3. −41List Sleep Apnea, Obstructive as a condition, but the registry did not file them under itMost often written as “Obstructive Sleep Apnea of Adult” (10), “Obstructive Sleep Apnea of Child” (7), and “Obstructive Sleep Apnea-hypopnea Syndrome” (5). The registry filed them under other conditions only, most often Sleep Apnea Syndromes (15) and Apnea (4).
  4. −249Match it another way211 name it in the title, 4 in a keyword, and 34 by a synonym or other text the search reads.
  5. 2,238The count on this page70 of them list Sleep Apnea, Obstructive in their own words; the registry filed them under no condition.

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Status

Completed
1,199
Recruiting
313
Status unknown
275
Not yet recruiting
134
Terminated
128
Withdrawn
91

Phase

Phase 2
127
Phase 3
100
Phase 4
98
Phase 1
61
Early Phase 1
21

Where

United States
751
France
201
Canada
133
China
108
Brazil
102
Taiwan
90

Who runs them

Fisher and Paykel Healthcare (63) · ResMed (50) · University Hospital, Grenoble (48) · Brigham and Women's Hospital (42) · University of California, San Diego (30) · Chinese University of Hong Kong (26) · VA Office of Research and Development (24) · University of Michigan (21)

What is being tested here

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

DrugOpenPhase 3All
Eszopiclone4111
Acetazolamide3014
Atomoxetine306
Oxygen305
Dronabinol314
Trazodone205
Lemborexant205
UBT251222
HDM1005222
Bofanglutide222

Drug classes tested here Diuretics 3 open · Antimuscarinics 2 open · GLP-1 receptor agonists 2 open · Corticosteroids 12 · Stimulants 11

Coming up

23phase 3 studies under way
157studies finish main data collection within a year4 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 313 Sleep Apnea, Obstructive studies recruiting now, 145 (46%) set no upper age limit and 125 (40%) stop at 75 or younger. 53 (17%) take children under 18. 3 (1%) are for women only and 1 (<1%) for men only; 65 (21%) take healthy volunteers.

Recruiting studies that take each age, of 313
AgeWomenMen
1047 (15%)46 (15%)
18227 (73%)225 (72%)
30254 (81%)251 (80%)
40262 (84%)260 (83%)
50262 (84%)261 (83%)
65253 (81%)251 (80%)
75206 (66%)204 (65%)
85163 (52%)161 (51%)

Across all 2,240 studies, recruiting or not: 41% stop at 75 or younger and 26% at 65; 13% take children; 2% are for women only and 3% for men only; 21% take healthy volunteers. From each study’s registry entry; the criteria on its page decide.

How long Sleep Apnea, Obstructive studies take

Of 47 phase 2 interventional studies under Sleep Apnea, Obstructive, half reached primary completion within 26 months of starting, counting those still running.

Start to primary completionEvery sponsorIndustryNon-industry
Phase 110 mo5–44 · 27 studies——
Phase 226 mo9–46 · 47 studies——
Phase 320 mo17–32 · 25 studies——
Phase 426 mo17–35 · 31 studies—26 mo18–35 · 28 studies
Interventional, no phase27 mo12–50 · 623 studies12 mo3–21 · 115 studies33 mo17–53 · 508 studies
Observational28 mo14–63 · 294 studies18 mo7–93 · 36 studies31 mo16–61 · 258 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 13, 2026.

Started recruiting6

Show 1 more

Results posted1

Newly registered21

Show 16 more

Studies

Recruiting first, then most recently updated. Showing 50 of 2,240. Browse all 2,240 → or search them.