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Showing 1–10 of 10 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Severe, Refractory Asthma Clear all
Completed Phase 2 Interventional

Study of Pulmozyme to Treat Severe Asthma Episodes

NCT00169962
View directory record Official record
Conditions
Asthma
Interventions
rhDNAse (pulmozyme)
Drug
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 55 Years
Enrollment
51 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Queens, New York
Source: ClinicalTrials.gov public record
Updated Oct 11, 2015 · Synced Jul 23, 2026, 2:45 AM EDT
Completed No phase listed Observational

A Prospective Observational Study of Biopredictors of Bronchial Thermoplasty Response in Patients With Severe Refractory Asthma (BTR Study)

NCT01185275
View directory record Official record
Conditions
Asthma
Interventions
Alair system
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 65 Years
Enrollment
133 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2019
U.S. locations
8
States / cities
Birmingham, Alabama • Tucson, Arizona • Denver, Colorado + 5 more
Source: ClinicalTrials.gov public record
Updated Nov 26, 2020 · Synced Jul 23, 2026, 2:45 AM EDT
Completed Phase 2 Interventional Results available

Effects of cKit Inhibition by Imatinib in Patients With Severe Refractory Asthma (KIA)

NCT01097694
View directory record Official record
Conditions
Asthma
Interventions
Imatinib mesylate, Placebo
Drug
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
7
States / cities
Birmingham, Alabama • Boston, Massachusetts • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated May 18, 2017 · Synced Jul 23, 2026, 2:45 AM EDT
Completed Phase 2 Interventional Results available

Dose Ranging Efficacy And Safety With Mepolizumab in Severe Asthma

NCT01000506
View directory record Official record
Conditions
Asthma
Interventions
Mepolizumab 750, Mepolizumab 250, Mepolizumab 75, Placebo saline
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Years to 65 Years
Enrollment
621 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
21
States / cities
Long Beach, California • Los Angeles, California • Riverside, California + 18 more
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Jul 23, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety Study of Mepolizumab Adjunctive Therapy in Subjects With Severe Uncontrolled Refractory Asthma

NCT01691521
View directory record Official record
Conditions
Asthma
Interventions
Mepolizumab IV, Mepolizumab SC, IV Placebo, SC Placebo
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Years and older
Enrollment
580 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
21
States / cities
Birmingham, Alabama • Newport Beach, California • Riverside, California + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2018 · Synced Jul 23, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

A Study to Determine Long-term Safety of Mepolizumab in Asthmatic Subjects

NCT01842607
View directory record Official record
Conditions
Asthma
Interventions
Mepolizumab
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Years and older
Enrollment
651 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
20
States / cities
Long Beach, California • Newport Beach, California • Riverside, California + 16 more
Source: ClinicalTrials.gov public record
Updated Aug 5, 2018 · Synced Jul 23, 2026, 2:45 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immune Interactions in Severe Asthma

NCT02566668
View directory record Official record
Conditions
Asthma
Interventions
1 year Observational Follow-up
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 65 Years
Enrollment
115 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2024
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced Jul 23, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

MEA112997 Open-label Long Term Extension Safety Study of Mepolizumab in Asthmatic Subjects

NCT01691859
View directory record Official record
Conditions
Asthma
Interventions
Mepolizumab
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
347 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
11
States / cities
Long Beach, California • Riverside, California • Denver, Colorado + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Jul 23, 2026, 2:45 AM EDT
Completed Phase 3 Interventional Results available

Mepolizumab Steroid-Sparing Study in Subjects With Severe Refractory Asthma

NCT01691508
View directory record Official record
Conditions
Asthma
Interventions
Mepolizumab, Placebo, OCS (prednisone/prednisolone)
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Years and older
Enrollment
135 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
8
States / cities
Long Beach, California • Denver, Colorado • New Haven, Connecticut + 5 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2017 · Synced Jul 23, 2026, 2:45 AM EDT
Completed Phase 2 Interventional Results available

A Randomized, Placebo-Controlled, Double-Blind Pilot Study of Pioglitazone Hydrochloride in Severe, Refractory Asthma

NCT00994175
View directory record Official record
Conditions
Severe, Refractory Asthma, Airway Inflammation, Airflow Obstruction
Interventions
Pioglitazone, Placebo
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 75 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2016
U.S. locations
2
States / cities
Bethesda, Maryland • Falls Church, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 4, 2017 · Synced Jul 23, 2026, 2:45 AM EDT