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Showing 1–24 of 63 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Obstructive Sleep Apnea, Obesity Clear all
Terminated Not applicable Interventional

Assessment of Sleep Apnea and Its Causes Before and After Weight Loss Surgery

NCT01712269
View directory record Official record
Conditions
Sleep Apnea, Obstructive
Interventions
Weight-loss (bariatric) surgery
Procedure
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 2, 2017 · Synced Jul 22, 2026, 6:55 PM EDT
Not listed Phase 2 Interventional

Ketogenic Diet Treatment of Obesity With Co-morbid Type 2 Diabetes Mellitus and/or Obstructive Sleep Apnea

NCT02069197
View directory record Official record
Conditions
Obesity, Diabetes, Obstructive Sleep Apnea
Interventions
Ketogenic diet, Orlistat, Standardized diet
Other · Drug
Lead sponsor
Mid-Atlantic Epilepsy and Sleep Center, LLC
Other
Eligibility
18 Years to 70 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 16, 2018 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional

Effect of CPAP (Continuous Positive Airway Pressure) on Lung Function in Asthmatics With Sleep Apnea

NCT00238069
View directory record Official record
Conditions
Asthma, Sleep Apnea
Interventions
CPAP machine as a result of sleep study
Device
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Jul 22, 2026, 6:55 PM EDT
Completed No phase listed Observational

Underlying Mechanisms of Obesity-induced Obstructive Sleep Apnea

NCT04793334
View directory record Official record
Conditions
Obstructive Sleep Apnea, Obesity
Interventions
sleeve gastectomy
Procedure
Lead sponsor
Brandon Nokes
Other
Eligibility
18 Years to 65 Years
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Jul 22, 2026, 6:55 PM EDT
Completed No phase listed Observational

Evaluation of a Respiratory Monitor in Surgical Patients With a BMI>35

NCT01825278
View directory record Official record
Conditions
Obesity, Obstructive Sleep Apnea
Interventions
ExSpiron Respiratory Volume Monitor (RVM, ExSpiron™, Respiratory Motion, Inc.; Waltham, MA
Device
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years and older
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2024
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Early Phase 1 Interventional

Micro-stream Capnography in Non-intubated Lean and Obese Patients With and Without Obstructive Sleep Apnea

NCT00653471
View directory record Official record
Conditions
Obesity, Obstructive Sleep Apnea
Interventions
Microcapmicro-stream device with Smart CapnoLine Plus, Microcap micro-stream device with CapnoLine, TG-920 main-stream device (Nihon Kohden, Tokyo, Japan).
Device
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Louisville, Kentucky
Source: ClinicalTrials.gov public record
Updated Jul 19, 2016 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Phase 3 Interventional

A Study of Retatrutide (LY3437943) in Participants Who Have Obesity or Overweight

NCT05929066
View directory record Official record
Conditions
Obesity, Overweight, Osteoarthritis, Knee, Obstructive Sleep Apnea
Interventions
Retatrutide, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
2,335 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
39
States / cities
Phoenix, Arizona • Little Rock, Arkansas • Fresno, California + 33 more
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional

"Reversibility of Cardiovascular Injury With CPAP Use: Mechanisms Involved"

NCT01317329
View directory record Official record
Conditions
Sleep Apnea, Obstructive, Hypoxia, Hypercapnia, Sleep Disorders, Obesity, Hypertension, Coronary Artery Vasospasm, Right Ventricular Overload, Left Ventricular Function Systolic Dysfunction, Ventricular Hypertrophy
Interventions
Clinically prescribed CPAP therapy
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
21 Years to 50 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 5, 2020 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional Results available

LAGB as a Treatment for Morbid Obesity in Adolescents

NCT01045499
View directory record Official record
Conditions
Morbid Obesity, Obstructive Sleep Apnea Syndrome, Metabolic Syndrome, Insulin Resistance, Nonalcoholic Fatty Liver Disease
Interventions
Laparoscopic adjustable gastric banding (Allergan Lap Band)
Device
Lead sponsor
Jeffrey L Zitsman, MD
Other
Eligibility
13 Years to 19 Years
Enrollment
137 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2020 · Synced Jul 22, 2026, 6:55 PM EDT
Recruiting Phase 3 Interventional

Maridebart Cafraglutide Versus Placebo in Adult Participants With Obstructive Sleep Apnea Not on Positive Airway Pressure (PAP) Therapy

NCT07226765
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Maridebart cafraglutide, Placebo
Drug
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 99 Years
Enrollment
250 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
13
States / cities
Northridge, California • Rolling Hills Estates, California • Brandon, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Jul 22, 2026, 6:55 PM EDT
Recruiting Phase 3 Interventional

AMAZE 3: A Research Study Investigating How Well the Medicine NNC0487-0111 Helps People With Excess Body Weight and Obstructive Sleep Apnoea Not Treated With Positive Airway Pressure Lose Weight and Improve Sleep Apnoea

NCT07571005
View directory record Official record
Conditions
Obesity, Overweight, Obstructive Sleep Apnoea
Interventions
NNC0487-0111, Placebo (matched to NNC0487-0111)
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years and older
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
17
States / cities
San Diego, California • Miami, Florida • Naples, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Jul 22, 2026, 6:55 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Fat Metabolism in OSA and COPD

NCT02157844
View directory record Official record
Conditions
Obstructive Sleep Apnea, Chronic Obstructive Pulmonary Disease, Obesity
Interventions
Not listed
Lead sponsor
Texas A&M University
Other
Eligibility
30 Years and older
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Feb 3, 2022 · Synced Jul 22, 2026, 6:55 PM EDT
Terminated Not applicable Interventional

Pediatric Obesity Management Study

NCT05622981
View directory record Official record
Conditions
Obesity, Childhood, Behavior, Eating
Interventions
Age-specific educational materials and monitoring
Behavioral
Lead sponsor
Corewell Health East
Other
Eligibility
2 Years to 17 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Royal Oak, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional Results available

Pragmatic Obstructive Sleep Apnea Weight Loss Trial Assessing Effectiveness and Reach

NCT05104450
View directory record Official record
Conditions
Obesity, Sleep Apnea, Obstructive
Interventions
lifestyle intervention
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older
Enrollment
696 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional Results available

Effects of CPAP on Diet, Physical Activity, and Cardiovascular Risk

NCT01944020
View directory record Official record
Conditions
Sleep Apnea Syndromes
Interventions
CPAP
Device
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 2, 2022 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Sex Steroids, Sleep, and Metabolic Dysfunction in Women

NCT00805207
View directory record Official record
Conditions
Polycystic Ovary Syndrome (PCOS), Obstructive Sleep Apnea, Obesity
Interventions
Progesterone, testosterone, glucocorticoid, continuous positive airway pressure, Estrogen, Control
Drug · Device · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 75 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2013
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 31, 2018 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional Results available

Lifestyle Program for Obstructive Sleep Apnea With Severe Obesity

NCT05343000
View directory record Official record
Conditions
Obstructive Sleep Apnea, Obesity
Interventions
Home-based pulmonary rehabilitation (PR) system
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 15, 2025 · Synced Jul 22, 2026, 6:55 PM EDT
Withdrawn No phase listed Observational

A Non-Interventional Pilot Study to Explore the Role of Gut Flora in Obesity

NCT04100616
View directory record Official record
Conditions
Overweight and Obesity, Overweight or Obesity, Obesity, Obesity, Morbid, Obesity, Abdominal, Obesity; Familial, Obesity; Endocrine, Obesity, Visceral, Obesity Hypoventilation Syndrome
Interventions
No intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Phase 3 Interventional Results available

Obstructive Sleep Apnea Master Protocol GPIF: A Study of Tirzepatide (LY3298176) in Participants With Obstructive Sleep Apnea

NCT05412004
View directory record Official record
Conditions
Obstructive Sleep Apnea, Obesity
Interventions
Tirzepatide, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
469 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
18
States / cities
Riverside, California • Brandon, Florida • Ocala, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional Results available

Effects of Continuous Positive Airway Pressure (CPAP) on Glucose Metabolism

NCT01503164
View directory record Official record
Conditions
Obstructive Sleep Apnea, Sleep Apnea, Sleep-disordered Breathing
Interventions
Positive Pressure Therapy (PAP), LifeStyle Counseling
Device · Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
21 Years to 75 Years
Enrollment
111 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 18, 2017 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Not applicable Interventional Results available

Study of the Effect of the Drug Gabapentin on Postoperative Pain and Incidence of Postoperative Nausea and Vomiting

NCT00886236
View directory record Official record
Conditions
Obesity, Morbid, Postoperative Pain, Postoperative Nausea and Vomiting
Interventions
Gabapentin, Placebo
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years to 80 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Sep 19, 2018 · Synced Jul 22, 2026, 6:55 PM EDT
Active, not recruiting Phase 3 Interventional

A Study of Retatrutide (LY3437943) in Participants With Type 2 Diabetes Mellitus Who Have Obesity or Overweight

NCT05929079
View directory record Official record
Conditions
Type 2 Diabetes, Obesity, Overweight, Obstructive Sleep Apnea
Interventions
Retatrutide, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
40
States / cities
Anniston, Alabama • Cullman, Alabama • Little Rock, Arkansas + 36 more
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jul 22, 2026, 6:55 PM EDT
Completed Phase 3 Interventional Results available

Armodafinil (Nuvigil), Postoperative Recovery of OSA (Obstructive Sleep Apnea) and Obese Patients

NCT02478580
View directory record Official record
Conditions
Obesity, Premature Recovery From Anesthesia
Interventions
Nuvigil, Placebo
Drug
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
67 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2016
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Dec 3, 2018 · Synced Jul 22, 2026, 6:55 PM EDT
Completed No phase listed Observational

Obesity and OSA in Pregnancy

NCT05654259
View directory record Official record
Conditions
Obesity, Obesity, Maternal, Obstructive Sleep Apnea, Blood Pressure
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
18 Years to 64 Years · Female only
Enrollment
116 participants
Timeline
2018 – 2025
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jul 14, 2025 · Synced Jul 22, 2026, 6:55 PM EDT