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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 3 of 8

ACTIVE NOT RECRUITING Phase 1 31 participants

A Study to Evaluate the Safety, Tolerability, Pharmacokinetics (PK), and Immunogenicity of APG777 in Adults With Asthma

Apogee Therapeutics

NCT06920901

ACTIVE NOT RECRUITING 20 participants

Air Pollution, Asthma and Circadian Clocks

University of Pennsylvania

NCT03406351

ACTIVE NOT RECRUITING NA 19 participants

Primary Care Implementation and Evaluation of Coach McLungs

Wake Forest University Health Sciences

NCT05059210

ACTIVE NOT RECRUITING NA 7 participants

Probiotics and Insulin Resistance in Obese Asthmatics

University of Alabama at Birmingham

NCT05949255

COMPLETED NA 206,703 participants

How Does the Clinical Tool 'What's Going Around' Affect Clinical Practice

Endeavor Health

NCT01979588

COMPLETED 66,581 participants

Replication of the D58 Asthma Trial in Healthcare Claims Data

Brigham and Women's Hospital

NCT04892732

COMPLETED 57,073 participants

Evaluation of VLER-Indiana Health Information Exchange Demonstration Project

VA Office of Research and Development

NCT01446705

COMPLETED 16,000 participants

Prospective Study of Dietary Factors, BMI, and Risk of Asthma in Children

Brigham and Women's Hospital

NCT00454415

COMPLETED NA 14,978 participants

The Breathe Well Program for Adults With Asthma

National Jewish Health

NCT02761837

COMPLETED 12,255 participants

Observational Study of Obstructive Lung Disease (NOVELTY)

AstraZeneca

NCT02760329

COMPLETED 9,000 participants

Environmental Polymorphisms Registry Health and Exposures Survey

National Institute of Environmental Health Sciences (NIEHS)

NCT01688986

COMPLETED NA 5,000 participants

Clinical Decision Support for Medication Management and Adherence

Duke University

NCT00979225

COMPLETED 3,000 participants

ParentLink: Better and Safer Emergency Care for Children

Boston Children's Hospital

NCT00457600

COMPLETED Phase 3 2,516 participants

A Comparison of PT027 vs PT007 Used as Needed in Participants With Asthma

Bond Avillion 2 Development

NCT05505734

COMPLETED Phase 3 2,436 participants

A Phase III Parallel Group Study, Comparing the Efficacy, Safety and Tolerability of the Fixed Dose Combination (FDC) of Fluticasone Furoate+Umeclidinium Bromide+Vilanterol (FF/UMEC/VI) With the FDC of FF/VI in Subjects With Inadequately Controlled Asthma

GlaxoSmithKline

NCT02924688

COMPLETED Phase 3 2,020 participants

Asthma Exacerbation Study

GlaxoSmithKline

NCT01086384

COMPLETED Phase 3 1,902 participants

Evaluation of Dupilumab in Patients With Persistent Asthma (Liberty Asthma Quest)

Sanofi

NCT02414854

COMPLETED Phase 3 1,526 participants

An Efficacy and Safety Study of Fluticasone Furoate/Vilanterol 100/25 Microgram (mcg) Inhalation Powder, Fluticasone Propionate/Salmeterol 250/50 mcg Inhalation Powder, and Fluticasone Propionate 250 mcg Inhalation Powder in Adults and Adolescents With Persistent Asthma

GlaxoSmithKline

NCT02301975

COMPLETED Phase 3 1,377 participants

A Study Testing the Superiority of CHF 1535 pMDI 800/24µg Total Daily Dose Compared With CHF 718 pMDI 800µg Total Daily Dose in Adults With Asthma on Medium or High-Dose Inhaled Corticosteroid

Chiesi Farmaceutici S.p.A.

NCT05292586

COMPLETED NA 1,187 participants

Telecommunication Enhanced Asthma Management

National Jewish Health

NCT00958932

COMPLETED NA 1,176 participants

Improving Asthma Outcomes Through Cultural Competence Training for Physicians

University of Michigan

NCT01251523

COMPLETED Phase 3 1,113 participants

A Safety and Efficacy Study of Beclomethasone Dipropionate Delivered Via Breath-Actuated Inhaler (BAI) or Metered-Dose Inhaler (MDI) in Participants >=12 Years Old With Persistent Asthma

Teva Branded Pharmaceutical Products R&D

NCT02031640

COMPLETED NA 1,102 participants

A Reminder System for Paper-Based Asthma Guidelines in the Pediatric Emergency Department

Vanderbilt University Medical Center

NCT00699439

COMPLETED Phase 3 1,070 participants

Blacks and Exacerbations on Long Acting Beta Agonists (LABA) vs. Tiotropium (BELT)

Brigham and Women's Hospital

NCT01290874

COMPLETED Phase 3 1,061 participants

Study to Evaluate Tezepelumab in Adults & Adolescents With Severe Uncontrolled Asthma

AstraZeneca

NCT03347279

COMPLETED NA 1,040 participants

Title: Comparative Effectiveness of Asthma Interventions Within an AHRQ PBRN

Wake Forest University Health Sciences

NCT01280500

COMPLETED NA 1,030 participants

An Electronic Decision Support Tool to Improve Outpatient Asthma Care

Agency for Healthcare Research and Quality (AHRQ)

NCT01522144

COMPLETED 1,000 participants

Outdoor Allergen Exposure, Sensitivity, and Acute Asthma

National Institute of Environmental Health Sciences (NIEHS)

NCT00043992

COMPLETED Phase 3 1,000 participants

Efficacy and Safety of Fexofenadine in Mild to Moderate Persistent Asthma

Sanofi

NCT00044824

COMPLETED Phase 2 964 participants

Study to Evaluate the Efficacy and Safety of MEDI-563 in Adults With Uncontrolled Asthma

MedImmune

NCT01238861

COMPLETED 964 participants

Asthma in the Delta Region of Arkansas (ADRA): Prevalence and Morbidity

Arkansas Children's Hospital Research Institute

NCT00589719

COMPLETED Phase 2 961 participants

Safety and Efficacy Study to Determine Anti-Asthmatic Effect of Esomeprazole Magnesium; Nexium Reflux Asthma

AstraZeneca

NCT00317044

COMPLETED 959 participants

Stress, Environment, and Genetics in Urban Children With Asthma

Brigham and Women's Hospital

NCT00269256

COMPLETED NA 901 participants

Asthma Digital Study

Elevance Health

NCT04609644

COMPLETED Phase 1 855 participants

Role of TLR4 in Environmental Asthma

John Sundy

NCT00671892

COMPLETED Phase 3 841 participants

Study of Fluticasone Propionate Multidose Dry Powder Inhaler Compared With Fluticasone Propionate/Salmeterol Multidose Dry Powder Inhaler

Teva Branded Pharmaceutical Products R&D

NCT02980133

COMPLETED Phase 4 806 participants

A Study in Participants With Asthma Initiating Treatment With Omalizumab (Xolair)

Hoffmann-La Roche

NCT01922037

COMPLETED Phase 3 805 participants

Safety of Indacaterol in Patients (≥ 12 Years) With Moderate to Severe Persistent Asthma

Novartis Pharmaceuticals

NCT00529529

COMPLETED NA 744 participants

Asthma and Obstructive Sleep Apnea (OSA)

University of Wisconsin, Madison

NCT01026298

COMPLETED Phase 3 660 participants

A Study of the Safety and Effectiveness of Benralizumab to Treat Patients With Severe Uncontrolled Asthma.

AstraZeneca

NCT03170271

COMPLETED Phase 2 648 participants

A Randomized Study To Evaluate The Efficacy And Safety Of An Investigational Drug In Adolescent And Adult Subjects With Persistent Asthma.

GlaxoSmithKline

NCT00398645

COMPLETED Phase 2 629 participants

12-Week Study in Adult Subjects With Asthma

Dey

NCT01516073

COMPLETED Phase 3 628 participants

A Safety and Efficacy Study of Beclomethasone Dipropionate Delivered Via Breath-Actuated Inhaler (BAI) or Metered-Dose Inhaler (MDI) in Participants Ages 4-11 Years Old With Persistent Asthma

Teva Branded Pharmaceutical Products R&D

NCT02040766

COMPLETED Phase 3 628 participants

Efficacy and Safety of Omalizumab in Children (6 - < 12 Years) With Moderate-severe, Inadequately Controlled Allergic Asthma

Novartis Pharmaceuticals

NCT00079937

COMPLETED Phase 2 627 participants

A Randomized Study To Evaluate The Efficacy And Safety Of An Investigational Drug In Adolescent And Adult Subjects With Asthma Uncontrolled on Moderate-Dose ICS Therapy.

GlaxoSmithKline

NCT00603746

COMPLETED Phase 2 622 participants

Online Asthma Self-Management for Children Aged 5-10 and Their Parents

Oregon Center for Applied Science

NCT02602392

COMPLETED Phase 4 621 participants

A 12-Month Study Comparing Fluticasone Propionate/Salmeterol (ADVAIR) DISKUS Combination Product 250/50mcg BID To Fluticasone Propionate (FLOVENT) DISKUS 250 mcg BID In Symptomatic Subjects With Asthma

GlaxoSmithKline

NCT00452699

COMPLETED Phase 4 600 participants

Study Of Patients With Allergic Rhinitis And Asthma

GlaxoSmithKline

NCT00296530

COMPLETED 600 participants

Genetic Risk Factors for Severe Asthma

National Institute of Allergy and Infectious Diseases (NIAID)

NCT00090740

COMPLETED Phase 2 584 participants

Study to Evaluate the Efficacy and Safety of MEDI9929 (AMG 157) in Adult Subjects With Inadequately Controlled, Severe Asthma

MedImmune

NCT02054130

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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.