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ClinicalTrials.gov 70 recruiting now full pipeline #15 of 28,707 conditions

Asthma: full-pipeline trial registry

70 of 378 indexed Asthma trials are currently recruiting.

Corpus placement: #15 of 28,707 conditions by registered trial count.

378 US clinical trials · 70 currently recruiting · #15 of 28,707 conditions by registered trial count

Asthma: 378 US clinical trials tracked, 70 recruiting.

Asthma is the subject of 378 registered US clinical trials on ClinicalTrials.gov, 70 of them currently open to new participants. 89 are in Phase 3-4 (later-stage) and 108 in Phase 1-2 (earlier-stage). The most active sponsor is GlaxoSmithKline, running 24 of these trials.

Enrollment posture brief

Registry condition asthma

OPEN 70 | RECR 19% | LATE 89 | EARLY 108 | RANK #15 | SPON 24

Nearest open-share peer: Relapsing Remitting Multiple Sclerosis (19% recruiting · 27 trials)

Colorectal Cancer41.1%Heart Failure41.1%Anxiety40.3%Pain28.1%Asthma (this)19%
Open-enrollment share among volume-matched conditions near Asthma

Asthma lists 70 open slots (19% of 378 indexed trials). Peers are matched on registered volume, not therapeutic-area browse lists. How peer matching works →

Key findings

What ClinicalTrials.gov does not surface for Asthma on its own pages , computed from the registry mirror as of 2026-08-08. Each line carries its own denominator so it can be quoted as it stands.

  1. Asthma is recruiting below its size-band peers.

    70 of 378 indexed trials (18.5%) are open to enrollment, against a 37.1% average across 139 conditions with 100+ trials. The peer set uses the same ClinicalTrials.gov-derived counts as this page.

  2. Sponsorship of Asthma trials is spread across many organizations.

    GlaxoSmithKline accounts for 24 of 378 trials (6.3%). 161 distinct sponsors appear on at least one study for this condition label.

  3. Typical Asthma enrolment sits around 144 participants.

    Median target enrolment is 144 among the 375 trials that report a genuine target (sentinel values excluded). 160 of those (42.7%) plan for fewer than 100 participants.

  4. Asthma research is mostly interventional.

    298 interventional and 80 observational studies make up this index (78.8% interventional). Study type is sponsor-reported on ClinicalTrials.gov.

Phase 127Phase 281Phase 351Phase 438

Open and recent trials

378 total, page 7 of 8

COMPLETED 38 participants

Tissue Immune Interaction in Nasal Polyposis

University of California, San Francisco

NCT04628442

COMPLETED Phase 1 36 participants

Inhaled Corticosteroid Use to Prevent Acute Chest Syndrome Recurrence in Children Between 1 and 4 With Sickle Cell Disease: a Feasibility Trial

Vanderbilt University

NCT02187445

COMPLETED Phase 2 36 participants

Study in Patients With Asthma

Dey

NCT00215410

COMPLETED NA 36 participants

A Practical Model to Transform Childhood Asthma Care - Spirometry Training in the Primary Care Setting

University of Washington

NCT01161433

COMPLETED Phase 2 36 participants

The Role of GER in Exercise Triggered Asthma

University of Utah

NCT00204672

COMPLETED NA 36 participants

The Provider and Organization in Asthma Guidelines

UConn Health

NCT00345514

COMPLETED 36 participants

Sleep Quality in High School Students With Asthma

Columbia University

NCT03073187

COMPLETED Early Phase 1 35 participants

Bioequivalency Study of Montelukast 10 mg Tablets Under Fed Conditions

Roxane Laboratories

NCT01659918

COMPLETED Phase 1 35 participants

Cockroach Nasal Allergen Challenge Pilot

National Institute of Allergy and Infectious Diseases (NIAID)

NCT02710136

COMPLETED Early Phase 1 34 participants

Bioequivalency Study of Montelukast 10 mg Tablets Under Fasted Conditions

Roxane Laboratories

NCT01659931

COMPLETED Phase 2 33 participants

Dose Response Study of Levalbuterol in the Prevention of Exercise Induced Bronchoconstriction Compared to Racemic Albuterol in Pediatric Subjects

Sumitomo Pharma America

NCT00685347

COMPLETED Phase 2 32 participants

Study in Patients With Asthma

Dey

NCT00215358

COMPLETED Phase 2 32 participants

Study in Patients With Asthma

Dey

NCT00215371

COMPLETED Phase 2 32 participants

A Study of 2 Doses of MAP0010 in Adult Asthmatics

Allergan

NCT00554970

COMPLETED Phase 4 32 participants

Effect of Flovent Discus vs QVAR vs Pulmicort Flexhaler on Short Term Growth

West Penn Allegheny Health System

NCT01520688

COMPLETED Phase 4 31 participants

Effect of Extra- Fine Versus Coarse-Particle Inhaled Corticosteroids (ICS) on Ventilation Heterogeneity in Children With Poorly Controlled Asthma

University of Virginia

NCT02577497

COMPLETED Phase 2 31 participants

Treatment With Omalizumab to Improve the Asthmatic Response to Rhinovirus Experimental Infection With Rhinovirus

University of Virginia

NCT02388997

COMPLETED 31 participants

Contributing Factors in the Pathobiology of Airway Remodeling in Obesity

Duke University

NCT03115632

COMPLETED NA 30 participants

A Pilot Study to Improve Preventive Asthma Care for Urban Adolescents

University of Rochester

NCT01106326

COMPLETED Phase 2 30 participants

Bronchial Thermoplasty for Severe Asthmatics Guided by HXe MRI

Xemed

NCT01832363

COMPLETED Phase 1 30 participants

Pharmacokinetic Profile and Safety of Fluticasone Propionate and Albuterol Sulfate in Combination When Compared to Fluticasone Propionate Multidose Dry Powder Inhaler (Fp MDPI) in Children Aged 4 to 11 Years Old

Teva Branded Pharmaceutical Products R&D

NCT06290102

COMPLETED 30 participants

Indoor Air Quality for Black Adults With Uncontrolled Asthma

Columbia University

NCT05685381

COMPLETED NA 29 participants

AdheRence to Inhaled Corticosteroids in Asthma

Duke University

NCT03769519

COMPLETED Phase 4 28 participants

A Study In Pediatric Subjects With Asthma Using ADVAIR HFA, ADVAIR HFA With Spacer, And ADVAIR DISKUS

GlaxoSmithKline

NCT00400608

COMPLETED Phase 4 28 participants

Study of Drug Exposure in Systemic Circulation of Primatene Mist by Oral Inhalation, Versus Epinephrine Injection by Intramuscular Injection and ProAir by Oral Inhalation in Healthy Individuals

Amphastar Pharmaceuticals

NCT04207840

COMPLETED 28 participants

Effect of Fasting and Refeeding on T-cell Fate

National Heart, Lung, and Blood Institute (NHLBI)

NCT02719899

COMPLETED Phase 1 28 participants

Sublingual Cockroach Safety in Adults With Cockroach Allergy & Perennial Allergic Rhinitis With or Without Asthma

National Institute of Allergy and Infectious Diseases (NIAID)

NCT00434421

COMPLETED 28 participants

Pediatric Ease of Use ELLIPTA Items

GlaxoSmithKline

NCT03315572

COMPLETED Phase 4 26 participants

Asthma in the Elderly: The Effect of Montelukast

Rohr and Columbo Asthma, Allergy and Immunology Specialists, P.C.

NCT02635334

COMPLETED Phase 4 25 participants

Single Dose Bronchodilatory Study in Asthma

Cornerstone Therapeutics

NCT01805687

COMPLETED 25 participants

A Study to Evaluate Conceptual Saturation of Evaluating Respiratory Symptoms (E-RS) in Subjects With Asthma

GlaxoSmithKline

NCT03344406

COMPLETED 25 participants

Observational Assessment of Baseline Asthma Control in African-American Children

University of North Carolina, Chapel Hill

NCT01891630

COMPLETED Phase 1 25 participants

In Vitro Basophil Responsiveness to Allergen Challenge After Gamma-tocopherol Supplementation in Allergic Asthmatics

University of North Carolina, Chapel Hill

NCT00836368

COMPLETED Phase 1 25 participants

A Study of the Safety and Pharmacokinetics of Levodopa Following Administration of CVT 301 (Levodopa Inhalation Powder) in Adults With Asthma

Acorda Therapeutics

NCT02633007

COMPLETED NA 25 participants

Neurostimulation for the Relief of Acute Bronchoconstriction

ElectroCore

NCT00762931

COMPLETED 25 participants

Minimally Invasive Biomarker for Asthma Disease Severity

Mayo Clinic

NCT02225678

COMPLETED Phase 1 24 participants

A Study of RO4989991 in Patients With Allergic Rhinitis

Hoffmann-La Roche

NCT01152619

COMPLETED Phase 2 24 participants

Epinephrine Inhalation Aerosol USP, CLINICAL STUDY-B3 FOR ASSESSMENT OF PHARMACOKINETICS

Amphastar Pharmaceuticals

NCT01255709

COMPLETED NA 23 participants

Randomized Pilot Trial of the Impact of Bedside Delivery of Discharge Medications to Pediatric Patients With Asthma

Boston Medical Center

NCT02336490

COMPLETED Phase 2 23 participants

Pilot Study of Pioglitazone for the Treatment of Moderate to Severe Asthma in Obese Asthmatics

Fernando Holguin

NCT00634036

COMPLETED 23 participants

A Study to Assess Benign Joint Hypermobility Syndrome in Children With a History of Wheezing or Asthma

University of Louisville

NCT02163096

COMPLETED NA 22 participants

A Pilot and Feasibility Study of Mobile-Based Asthma Action Plans

Arkansas Children's Hospital Research Institute

NCT01514760

COMPLETED NA 22 participants

A Pilot Study of Personalized Medicine for Pediatric Asthma

Milton S. Hershey Medical Center

NCT01681732

COMPLETED NA 22 participants

Acute Effect of Mometasone on Beta-adrenergic Airway and Airway Vascular Relaxation in Severe Asthma

University of Miami

NCT01210170

COMPLETED Phase 2 22 participants

Albuterol DPI (A006) Clinical Study-B3:Efficacy, Dose-ranging and Safety Evaluation

Amphastar Pharmaceuticals

NCT02210806

COMPLETED Phase 4 22 participants

Sunovion Growth Study Pediatric Subjects With Mild Asthma & Allergic Rhinitis

West Penn Allegheny Health System

NCT01550471

COMPLETED Phase 4 21 participants

Tolerability of Metoprolol-Succinate-ER and Carvedilol in COPD

VA Greater Los Angeles Healthcare System

NCT03370835

COMPLETED 20 participants

Determine the Relationship Between Circadian Rhythms and Nocturnal Asthma

Northwestern University

NCT00891189

COMPLETED Phase 4 20 participants

A Pilot Study to Determine the Feasibility and Utility of Implementing of the Full Scale TOM Trial

University of California, San Diego

NCT01696214

COMPLETED Phase 1 20 participants

Comparative Effects of Fish Oil Supplementation and a Montelukast on EIB and Airway Inflammation in Asthma

Indiana University

NCT00676468

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Phase Distribution

PhaseTrial count
Phase 1 27
Phase 2 81
Phase 3 51
Phase 4 38

Named interventions

Most-linked intervention names on Asthma records (sponsor-reported on ClinicalTrials.gov). Counts are trial links, not unique products.

Placebo Drug
43 trials
Placebo Other
10 trials
Dupilumab Drug
7 trials
Formoterol Fumarate Drug
4 trials
Benralizumab Biological
4 trials
Omalizumab Drug
4 trials
placebo Drug
4 trials
Albuterol Drug
3 trials

US sites by state

Facility locations filed on Asthma trials. A trial with sites in several states counts in each.

California 127 trials
Florida 91 trials
Colorado 81 trials
North Carolina 62 trials
New York 61 trials
Massachusetts 57 trials
Texas 51 trials
Arizona 50 trials

Source: ClinicalTrials.gov, National Library of Medicine. Data is informational only.

What to do with this Asthma page

378 registered trials, 70 currently recruiting, is a starting point for a conversation, not a diagnosis or a recommendation.

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This Asthma condition card totals 378 registered trials; most-linked intervention Placebo; top US site state California. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.