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Showing 1–24 of 1,761 matching trials from the live ClinicalTrials.gov search.
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Active, not recruiting Phase 3 Interventional

A Phase 3 Study to Evaluate the Safety and Tolerability of L606 in Subjects With PAH or PH-ILD

NCT04691154
View directory record Official record
Conditions
Pulmonary Arterial Hypertension, Pulmonary Hypertension Due to Lung Diseases
Interventions
L606 inhalation suspension
Combination Product
Lead sponsor
Liquidia Technologies, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2031
U.S. locations
8
States / cities
Scottsdale, Arizona • Los Angeles, California • Jacksonville, Florida + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 31, 2026 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Phase 2 Interventional Results available

Effect of iNO on Invasively Derived Pulmonary Pressures in Patients With PAH

NCT02734953
View directory record Official record
Conditions
Pulmonary Arterial Hypertension
Interventions
Nitric Oxide
Drug
Lead sponsor
Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)
Other
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 23, 2018 · Synced Jul 22, 2026, 4:51 PM EDT
Terminated Phase 2 Interventional Results available

Inhaled Nitric Oxide for Preventing Progression in COVID-19

NCT04388683
View directory record Official record
Conditions
COVID-19
Interventions
Nitric Oxide
Drug
Lead sponsor
Tufts Medical Center
Other
Eligibility
18 Years to 85 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 18, 2022 · Synced Jul 22, 2026, 4:51 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Yoga in Altering Mechanistic Outcomes in Hypertension

NCT05158205
View directory record Official record
Conditions
Hypertension
Interventions
Yoga, Slow, deep breathing, Control breathing
Behavioral
Lead sponsor
Texas State University
Other
Eligibility
30 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Marcos, Texas
Source: ClinicalTrials.gov public record
Updated Apr 10, 2025 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Phase 1Phase 2 Interventional

Study to Evaluate the Safety and Efficacy of Inhaled PT001 in Patients With Chronic Obstructive Pulmonary Disease (COPD)

NCT00871182
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Inhaled PT001, Inhaled Placebo, Tiotropium Handihaler
Drug
Lead sponsor
Pearl Therapeutics, Inc.
Industry
Eligibility
40 Years to 75 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
6
States / cities
Peoria, Arizona • Denver, Colorado • Miami, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 20, 2013 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Not applicable Interventional Results available

Using the Active Breathing Control Device to Reduce Radiation Side Effects to Critical Structures in Breast Cancer

NCT00328783
View directory record Official record
Conditions
Breast Cancer
Interventions
Active Breathing Coordinator (ABC), Radiation Therapy
Device · Radiation
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 29, 2025 · Synced Jul 22, 2026, 4:51 PM EDT
Terminated Not applicable Interventional Results available

A Randomized Control Trial Treating Depression With Yoga and Coherent Breathing Versus Walking in Veterans

NCT03489122
View directory record Official record
Conditions
Depressive Disorder, Major, Post Traumatic Stress Disorder
Interventions
yoga, walking
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022
U.S. locations
1
States / cities
Bedford, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 10, 2025 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Phase 3 Interventional Results available

Tiotropium+Olodaterol Fixed Dose Combination (FDC) Versus Tiotropium and Olodaterol in Chronic Obstructive Pulmonary Disease (COPD)

NCT01431274
View directory record Official record
Conditions
Pulmonary Disease, Chronic Obstructive
Interventions
tiotropium + olodaterol, tiotropium, olodaterol, Respimat
Drug · Device
Lead sponsor
Boehringer Ingelheim
Industry
Eligibility
40 Years and older
Enrollment
2,624 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
35
States / cities
Jasper, Alabama • Mobile, Alabama • Boulder, Colorado + 31 more
Source: ClinicalTrials.gov public record
Updated Jul 15, 2015 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Short Term Hemodynamic Effects of Controlled Slow Breathing With Biofeedback in Patients With Heart Failure

NCT00971386
View directory record Official record
Conditions
Heart Failure
Interventions
Slow breathing
Behavioral
Lead sponsor
Albert Einstein Healthcare Network
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 9, 2011 · Synced Jul 22, 2026, 4:51 PM EDT
Terminated No phase listed Observational Results available

Efficacy of TOBI Podhaler vs. Tobramycin Inhalation Solution

NCT02038803
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
TOBIpodhaler
Drug
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Dec 5, 2024 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Not applicable Interventional

Breathing Training for Asthma

NCT00975273
View directory record Official record
Conditions
ASTHMA
Interventions
Capnometry Assisted Respiration Training, Breathing Awareness
Behavioral
Lead sponsor
Southern Methodist University
Other
Eligibility
18 Years to 65 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
2
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 3, 2018 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Phase 1Phase 2 Interventional

Vitamin A Supplementation for Extremely-Low-Birth-Weight Infants

NCT01203488
View directory record Official record
Conditions
Infant, Newborn, Infant, Low Birth Weight, Infant, Small for Gestational Age, Infant, Premature, Bronchopulmonary Dysplasia, Respiration, Artificial, Respiratory Distress Syndrome, Newborn, Sepsis
Interventions
Vitamin A, Sham Procedure
Drug · Other
Lead sponsor
NICHD Neonatal Research Network
Network
Eligibility
24 Hours to 96 Hours
Enrollment
807 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1996 – 1999
U.S. locations
11
States / cities
Palo Alto, California • New Haven, Connecticut • Washington D.C., District of Columbia + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 25, 2017 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Not applicable Interventional Results available

Three Different Programs of Paced Breathing in Treating Hot Flashes in Women

NCT00569166
View directory record Official record
Conditions
Breast Cancer, Fatigue, Hot Flashes, Sleep Disorders
Interventions
Paced breathing (15 min once daily, 6 breaths/min), Paced breathing (15 min twice daily, 6 breaths/min), Paced breathing (10 min once daily, 14 breaths/min)
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 120 Years · Female only
Enrollment
105 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 6, 2017 · Synced Jul 22, 2026, 4:51 PM EDT
Recruiting Not applicable Interventional

Nutrition for Asthmatics

NCT06151405
View directory record Official record
Conditions
Asthma
Interventions
DGA Diet, MCT Diet, KETO Diet
Other
Lead sponsor
Pennington Biomedical Research Center
Other
Eligibility
18 Years to 65 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Phase 4 Interventional Results available

Long Term Safety of Tobramycin Inhalation Powder in Patients With Cystic Fibrosis

NCT01519661
View directory record Official record
Conditions
Pulmonary Infections, Pseudomonas Aeruginosa in Cystic Fibrosis
Interventions
TBM100
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
6 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
20
States / cities
Little Rock, Arkansas • Denver, Colorado • Jacksonville, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Feb 9, 2015 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Phase 3 Interventional Results available

OPTIMIZing Treatment for Early Pseudomonas Aeruginosa Infection in Cystic Fibrosis

NCT02054156
View directory record Official record
Conditions
Cystic Fibrosis
Interventions
azithromycin, placebo, Tobramycin solution for inhalation
Drug
Lead sponsor
Bonnie Ramsey
Other
Eligibility
6 Months to 18 Years
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
45
States / cities
Anchorage, Alaska • Tucson, Arizona • Little Rock, Arkansas + 40 more
Source: ClinicalTrials.gov public record
Updated Sep 30, 2019 · Synced Jul 22, 2026, 4:51 PM EDT
Active, not recruiting Phase 2 Interventional

Study to Assess the Efficacy, Safety, and Tolerability of NOC-110 in Adults With Refractory or Unexplained Chronic Cough

NCT06504446
View directory record Official record
Conditions
Refractory or Unexplained Chronic Cough
Interventions
NOC-110, Placebo
Drug · Other
Lead sponsor
Nocion Therapeutics
Industry
Eligibility
18 Years to 80 Years
Enrollment
455 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
68
States / cities
Foley, Alabama • Scottsdale, Arizona • Tempe, Arizona + 60 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jul 22, 2026, 4:51 PM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Investigating the Pharmacokinetics and Pharmacodynamics of Recombinant Human Insulin Administered by Dry Powder Inhaler

NCT00426920
View directory record Official record
Conditions
Diabetes Mellitus
Interventions
Insulin
Drug
Lead sponsor
QDose Limited
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Chula Vista, California
Source: ClinicalTrials.gov public record
Updated Jan 24, 2007 · Synced Jul 22, 2026, 4:51 PM EDT
Completed Phase 3 Interventional Results available

Safety Study of the Effects of Inhaled Fluticasone Furoate/GW642444 on the Hypothalamic-Pituitary-Adrenal (HPA) Axis

NCT01086410
View directory record Official record
Conditions
Asthma
Interventions
Placebo Inhalation Powder, Fluticasone Furoate/GW642444 Inhalation Powder, Placebo Oral Capsule, Prednisolone Oral Capsule
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Years to 65 Years
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
4
States / cities
Cypress, California • Huntington Beach, California • Oklahoma City, Oklahoma + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 17, 2017 · Synced Jul 22, 2026, 4:51 PM EDT
Withdrawn Phase 2 Interventional

Use of Inhaled Nitric Oxide to Prevent Pulmonary Hypertension Associated to Stored Blood Transfusion

NCT02217683
View directory record Official record
Conditions
Hypertension, Pulmonary, Hemolysis
Interventions
Nitric Oxide
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2016 · Synced Jul 22, 2026, 4:51 PM EDT
Terminated Not applicable Interventional

Humidity Therapy for Spontaneously Breathing Tracheostomy Patients

NCT02686489
View directory record Official record
Conditions
Respiratory Failure
Interventions
Heated humidification, Cool bland aerosol
Other
Lead sponsor
Rush University Medical Center
Other
Eligibility
18 Years and older
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Jul 22, 2026, 4:51 PM EDT
Suspended Not applicable Interventional

CLEANer Aspiration for Pulmonary Embolism

NCT06189313
View directory record Official record
Conditions
Pulmonary Embolism, Acute Pulmonary Embolism, Cardiovascular Diseases, Venous Thromboembolism
Interventions
Cleaner Pro Thrombectomy System
Device
Lead sponsor
Argon Medical Devices
Industry
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
12
States / cities
Aurora, Colorado • Washington D.C., District of Columbia • Tampa, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Jul 22, 2026, 4:51 PM EDT
Completed No phase listed Observational

Effects of GLP-1 Agonists on Gastric Volume

NCT05854979
View directory record Official record
Conditions
Diabetes, Gastric Content Aspiration, Glucagon-like Peptide 1, GLP-1
Interventions
Gastric Ultrasound
Diagnostic Test
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
210 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 24, 2024 · Synced Jul 22, 2026, 4:51 PM EDT
Recruiting Early Phase 1 Interventional

Supplemental Oxygen in Pulmonary Embolism (SO-PE)

NCT05891886
View directory record Official record
Conditions
Pulmonary Embolism, Venous Thromboembolism, Metabolomics, Oxygen Inhalation Therapy
Interventions
Oxygen Therapy, Non-rebreather mask
Drug · Device
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 14, 2025 · Synced Jul 22, 2026, 4:51 PM EDT