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ClinicalTrials.gov 70 recruiting now full pipeline #15 of 28,963 conditions

Asthma: full-pipeline trial registry

70 of 378 indexed Asthma trials are currently recruiting.

Corpus placement: #15 of 28,963 conditions by registered trial count.

378 US clinical trials · 70 currently recruiting · #15 of 28,963 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.

Open enrollment snapshot

Asthma has 378 registered US clinical trials, 70 of them open to new participants right now, about 19% of the total.

70
recruiting participants now
19%
of trials open to enrollment
89
in Phase 3-4 (later-stage)
24
top sponsor: GlaxoSmithKline

Corpus placement: #15 of 28,963 conditions by registered trial count on ClinicalTrials.gov-derived indexes. Registry reference only, not medical advice.

Key findings

What ClinicalTrials.gov does not surface for Asthma on its own pages , computed from the registry mirror as of 2026-07-11. 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 37.2% average across 135 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

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

What is open for Asthma right now

70 recruiting of 378 indexed (19% open).

Phase mix: 89 late (III/IV) vs 108 early (I/II) (balanced across stages).

Top sponsor: GlaxoSmithKline (24 trials), 9 others listed. 50 shown below, recruiting first. #15 of 28,963 conditions by registered trial count.

How open-enrollment share is computed

Open share is recruiting_count divided by trial_count for this condition label in the public registry export. Status can change between pulls; treat the figure as a snapshot of research attention, not treatment availability.

Frequently Asked Questions

How many clinical trials are there for Asthma?

PlainTrial tracks 378 US clinical trials for Asthma, of which 70 are currently recruiting participants. Data sourced from ClinicalTrials.gov.

How do I find a recruiting trial for Asthma?

Use the trial list above filtered by "Recruiting" status, or visit our trial finder at /recruiting to search by condition and state. Always discuss trial participation with your healthcare provider before enrolling.

Is this data current?

Data is sourced from ClinicalTrials.gov and reflects our most recent data pull. Trial status may have changed since then. Always verify current information at ClinicalTrials.gov before making decisions about participation.

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from ClinicalTrials.gov (National Library of Medicine). Consult a qualified professional before making decisions based on this data.

Source: ClinicalTrials.gov (NIH/NLM) ClinicalTrials.gov AACT registry · 2026 Trial counts and statuses sourced from ClinicalTrials.gov. Sponsor counts include both industry and federal/academic sponsors.

Verify with NIH →

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial for this condition, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data error.