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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Sleepiness Clear all
Recruiting Not applicable Interventional

Impact of Positive Airway Pressure Therapy on Clinical Outcomes in Older Veterans With Chronic Obstructive Pulmonary Disease and Comorbid Obstructive Sleep Apnea (Overlap Syndrome)

NCT04179981
View directory record Official record
Conditions
Sleep Apnea Syndrome, Obstructive Sleep Apnea, COPD, Overlap Syndrome, Quality of Life, Neurocognitive Function, Sleepiness, Elderly, Positive Airway Pressure
Interventions
Positive airway pressure, Conservative care (control arm)
Device · Other
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
60 Years and older
Enrollment
668 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jun 10, 2026, 4:49 PM EDT
Enrolling by invitation Phase 1 Interventional

Study of Circadian Focused Light Therapy in Progressive Multiple Sclerosis

NCT06261528
View directory record Official record
Conditions
Progressive Multiple Sclerosis
Interventions
Light therapy
Device
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 30, 2025 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Study of Pantoprazole for Sleepiness Associated With Acid Reflux and Sleep Apnea

NCT00307944
View directory record Official record
Conditions
Acid Reflux Disease, Obstructive Sleep Apnea
Interventions
Pantoprazole
Drug
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 11, 2007 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Community-Level Daytime Sleepiness: Social-Environmental Determinants, Consequences, and Impact of Sleep Apnea

NCT04176042
View directory record Official record
Conditions
Daytime Sleepiness
Interventions
Track 1, Track 2
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
20 Years to 60 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 20, 2020 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Not applicable Interventional

Psychosocial Adjunctive Treatment for Hypersomnia (PATH)

NCT03904238
View directory record Official record
Conditions
Narcolepsy, Idiopathic Hypersomnia
Interventions
Cognitive-Behavior Therapy for Hypersomnia (CBT-H)
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
35 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 20, 2019 · Synced Jun 10, 2026, 4:49 PM EDT
Completed No phase listed Observational

Face of Sleepiness

NCT01060436
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
CPAP or BiPAP machines
Device
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Dec 5, 2016 · Synced Jun 10, 2026, 4:49 PM EDT
Completed No phase listed Observational

Sleep Disorders of Patients With Diseases of the Nervous System

NCT00001664
View directory record Official record
Conditions
Hypersomnia, Narcolepsy, Nervous System Disease, Sleep Disorder
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
5 Years and older
Enrollment
83 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jun 10, 2026, 4:49 PM EDT
Recruiting Phase 2 Interventional

A Long-term Extension Study of ORX750 in Participants With Narcolepsy and Idiopathic Hypersomnia

NCT07096674
View directory record Official record
Conditions
Narcolepsy Type 1, Narcolepsy Type 2, Idiopathic Hypersomnia
Interventions
ORX750
Drug
Lead sponsor
Centessa Pharmaceuticals (UK) Limited
Industry
Eligibility
18 Years to 65 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
19
States / cities
Auburn, Alabama • Santa Ana, California • Miami, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 4 Interventional Results available

Solriamfetol's Effect on Cognitive Health in Apnea Participants During a Randomized Placebo-controlled Study

NCT04789174
View directory record Official record
Conditions
Excessive Daytime Sleepiness, Obstructive Sleep Apnea, Impaired Cognitive Function
Interventions
Solriamfetol, Placebo
Drug
Lead sponsor
Axsome Therapeutics, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
15
States / cities
Los Angeles, California • Santa Ana, California • Jacksonville, Florida + 11 more
Source: ClinicalTrials.gov public record
Updated Jan 25, 2026 · Synced Jun 10, 2026, 4:49 PM EDT
Recruiting No phase listed Observational

Effect of CPAP on Blood Pressure in Excessively Sleepy Obstructive Sleep Apnea Subtype

NCT05742360
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
CPAP therapy
Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 75 Years
Enrollment
227 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
2
States / cities
Columbus, Ohio • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Work Hour Reductions, Medical Errors, and Intern Well-Being at Providence St. Vincent Medical Center Intensive Care Unit

NCT00996320
View directory record Official record
Conditions
Sleep Deprivation, Depression
Interventions
Reduced work hour schedule
Other
Lead sponsor
Providence Health & Services
Other
Eligibility
Not listed
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 15, 2009 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 3 Interventional

A Long-Term Safety and Effectiveness Study to Evaluate Pitolisant in Adult Patients With Idiopathic Hypersomnia

NCT05458128
View directory record Official record
Conditions
Idiopathic Hypersomnia, Excessive Daytime Sleepiness
Interventions
Pitolisant
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
Enrollment
119 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
32
States / cities
Los Angeles, California • San Ramon, California • Brandon, Florida + 29 more
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 3 Interventional

A Phase 3 Study to Assess the Safety and Efficacy of Pitolisant in Adult Patients With Idiopathic Hypersomnia

NCT05156047
View directory record Official record
Conditions
Idiopathic Hypersomnia
Interventions
Open-label pitolisant, Double-blind placebo, Double-blind pitolisant
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
18 Years and older
Enrollment
214 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
58
States / cities
Peoria, Arizona • Scottsdale, Arizona • Los Angeles, California + 53 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 3 Interventional Results available

Study to Assess Patient Reported Outcomes With Armodafinil Treatment for Excessive Sleepiness in Adults With Narcolepsy or Obstructive Sleep Apnea/Hypopnea Syndrome

NCT00228566
View directory record Official record
Conditions
Excessive Daytime Sleepiness, Narcolepsy, Obstructive Sleep Apnea/Hypopnea Syndrome (OSAHS)
Interventions
Armodafinil
Drug
Lead sponsor
Cephalon
Industry
Eligibility
18 Years to 65 Years
Enrollment
247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
43
States / cities
Birmingham, Alabama • Tuscaloosa, Alabama • Phoenix, Arizona + 37 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2013 · Synced Jun 10, 2026, 4:49 PM EDT
Completed No phase listed Observational

A Web-based Observational Study of Patient-reported Outcomes in Adults With Narcolepsy

NCT02769780
View directory record Official record
Conditions
Narcolepsy
Interventions
Not listed
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
1,500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 4, 2022 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 4 Interventional Results available

Randomized Controlled Trial to Assess Effects of Lacosamide on Sleep and Wake in Adults With Focal Epilepsy

NCT01190098
View directory record Official record
Conditions
Partial Epilepsy
Interventions
Lacosamide, Placebo
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
59 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 4, 2016 · Synced Jun 10, 2026, 4:49 PM EDT
Terminated Not applicable Interventional Results available

Transcranial Direct Current Stimulation Therapy for Central Hypersomnia Without Cataplexy

NCT03198156
View directory record Official record
Conditions
Hypersomnia
Interventions
Transcranial Direct Current Stimulation, Sham stimulation
Device
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 70 Years
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 24, 2021 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Tolperisone on Measures of Drowsiness and Cognitive Function

NCT04407377
View directory record Official record
Conditions
Healthy
Interventions
Tolperisone Hydrochloride, Cyclobenzaprine Hydrochloride 10 MG, Placebo
Drug · Other
Lead sponsor
Neurana Pharmaceuticals, Inc.
Industry
Eligibility
21 Years to 65 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
2
States / cities
Long Beach, California • Berlin, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 31, 2022 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 2 Interventional

RECOVER-SLEEP: Platform Protocol

NCT06404086
View directory record Official record
Conditions
Long COVID, Long COVID-19, Hypersomnia, Sleep Disturbance
Interventions
Modafinil, Modafinil Placebo, Solriamfetol, Solriamfetol Placebo, Melatonin, Melantonin Placebo, Tailored lighting (TL) Active, Tailored lighting (TL) Placebo
Drug · Device
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
830 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
47
States / cities
Phoenix, Arizona • Tucson, Arizona • Palo Alto, California + 31 more
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 3 Interventional

Safety and Effectiveness of NXY-059 for the Treatment of Patients Who Have Suffered From a Stroke

NCT00061022
View directory record Official record
Conditions
Cerebral Stroke, Stroke, Acute, Cerebrovascular Stroke, Ischemic Attack, Transient
Interventions
NXY-059
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years and older
Enrollment
3,200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
98
States / cities
Birmingham, Alabama • Phoenix, Arizona • Fort Smith, Arkansas + 95 more
Source: ClinicalTrials.gov public record
Updated Nov 14, 2010 · Synced Jun 10, 2026, 4:49 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Predictors of Post-COVID-19 Clinical and Cognitive Consequences

NCT06291870
View directory record Official record
Conditions
Post Acute Sequelae of SARS CoV 2 Infection, Obstructive Sleep Apnea
Interventions
Not listed
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Jun 10, 2026, 4:49 PM EDT
Completed No phase listed Observational

Stress and Vision Fluctuations in Retinitis Pigmentosa

NCT00475254
View directory record Official record
Conditions
Retinitis Pigmentosa
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 5, 2011 · Synced Jun 10, 2026, 4:49 PM EDT
Recruiting Phase 2 Interventional

A Study of TAK-360 in Adults With Idiopathic Hypersomnia

NCT06812078
View directory record Official record
Conditions
Idiopathic Hypersomnia
Interventions
TAK-360, Placebo
Drug · Other
Lead sponsor
Takeda
Industry
Eligibility
18 Years to 70 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
13
States / cities
Redwood City, California • Santa Ana, California • Colorado Springs, Colorado + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2026 · Synced Jun 10, 2026, 4:49 PM EDT
Completed Phase 3 Interventional Results available

"Twelve-week Study of the Safety and Efficacy of JZP-110 in the Treatment of Excessive Sleepiness in OSA"

NCT02348606
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
JZP-110, Placebo oral tablet
Drug
Lead sponsor
Jazz Pharmaceuticals
Industry
Eligibility
18 Years to 75 Years
Enrollment
476 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
45
States / cities
Glendale, Arizona • Scottsdale, Arizona • Little Rock, Arkansas + 38 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2019 · Synced Jun 10, 2026, 4:49 PM EDT