Asthma drug dupilumab targets lung mucus in new imaging study
NCT ID NCT04400318
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study tested dupilumab (Dupixent) in 109 adults with uncontrolled moderate-to-severe asthma. Researchers used lung scans and breathing tests to see if the drug reduces airway inflammation and mucus plugging. Participants received either dupilumab or a placebo for 24 weeks. The goal was to understand how dupilumab improves lung function and asthma control.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Dupilumab (Dupixent)
- What this could lead to
- If successful, this could confirm dupilumab's ability to reduce lung inflammation and mucus buildup, improving breathing and asthma control.
- What could go wrong
- This is a completed phase 4 study with 109 participants, so results are already in. However, benefits may not apply to all asthma types, and side effects like injection reactions or infections are possible.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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109 people
The number who actually took part.
- Started
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Jun 2020
- Finished
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Aug 2023
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 70 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 18 to 70 years of age inclusive with the diagnosis of asthma based on Global Strategy for Asthma Management and Prevention (GINA) 2019 at the time of signing the informed consent * History of ≥1 exacerbation(s) in the previous year * Uncontrolled moderate to severe asthma (ACQ-5 ≥1.5) at visit (V)1 and V2, prior to randomization * Pre-bronchodilator FEV1 ≤80% of predicted normal at V1 and V2, prior to randomization * Exhibit bronchodilator reversibility (≥12% and 200 mL improvement in FEV1 post SABA administration) during screening, prior to randomization * Blood eosinophil ≥300 cells /µL and FeNO ≥25 ppb during screening, prior to randomization NOTES: * Historical values of blood eosinophil count meeting the eligibility criterion measured within 6 months prior to SV1 in the absence of OCS treatment are allowed. * FeNO value to be checked for eligibility at V2 as well. -Existing treatment with medium to high dose ICS in combination with a second controller (e.g. LABA, LTRA) ± a third controller. The dose regimen should be stable ≥1 month prior V1 and during screening. Exclusion Criteria: * Current smoker (cigarette or e-cigarette) or cessation of smoking within 1 year prior randomization * Previous smoker with a smoking history \>10 pack-years * Known hypersensitivity to dupilumab or any of its excipients * A subject who experiences an asthma exacerbation (defined as a deterioration of asthma that results in emergency treatment, hospitalization due to asthma, or treatment with systemic steroids) during screening * Current acute bronchospasm or status asthmaticus * Diagnosed pulmonary (other than asthma) or systemic disease associated with elevated peripheral eosinophil counts * History or clinical evidence of chronic obstructive pulmonary disease (COPD) including Asthma-COPD Overlap Syndrome (ACOS) or any other significant lung disease (eg, lung fibrosis, sarcoidosis, interstitial lung disease, pulmonary hypertension, bronchiectasis, Churg-Strauss Syndrome, etc) * Active tuberculosis, latent untreated tuberculosis or a history of incompletely treated tuberculosis or non-tuberculous mycobacterial infection unless it is well documented by a specialist that the participants has been adequately treated and the treatment with a biologic agent can be initiated, in the medical judgment of the Investigator and/or infectious disease specialist. Tuberculosis testing would only be performed on a country by country basis according to the routine clinical practice and the local guidelines, if required by regulatory authorities or ethics committees * History of or current evidence of clinically significant disease in any non-respiratory system (e.g. cardiovascular, hepatic, nervous system, gastrointestinal, endocrinological, rheumatological, dermatological), which, in the judgment of the Investigator, could interfere with the study or require treatment that might interfere with the study * Current evidence of clinically significant oncological disease, which in the opinion of the investigator may interfere with the objectives of the study or put the subject at undue risk * Participants with any of the following results at V1: * Positive (or indeterminate) hepatitis B surface antigen (HBs Ag) or * Positive Hepatitis B IgM core antibody (IgM HBc Ab) or * Positive total hepatitis B core antibody (total HBc Ab) confirmed by positive HBV DNA or * Positive hepatitis C antibody (HCV Ab) confirmed by positive HCV RNA * History of human immunodeficiency virus (HIV) infection or positive HIV serology at V1 * Any biologic therapy (including experimental treatments and dupilumab) or any other biologic therapy/immunosuppressant within 3 months prior to V1 * Treatment with live (attenuated) vaccine within 4 weeks before V1. For participants who have vaccination with live, attenuated vaccines planned during the course of the study (based on national vaccination schedule/local guidelines), it will be determined, after consultation with a physician, whether the administration of vaccine can be postponed until after the end of the study, or preponed to before the start of the study without compromising the health of the participant: * Participants for whom administration of live (attenuated) vaccine can be safely postponed would be eligible to enroll into the study. * Participants who have their vaccination preponed can enroll in the study only after a gap of 4 weeks following administration of the vaccine. * Treatment with oral corticosteroids (OCS) within 2 weeks prior to V1 * Enrolled in other ongoing studies regardless of the investigational product * Treatment with an investigational drug within 1 month or within 5 half-lives (if known), whichever is longer, prior to V1 * Suspected or high risk of parasitic infection (helminthic infection), unless clinical and (if necessary) laboratory assessments have ruled out active infection prior to randomization * Females who are lactating, breastfeeding, or who are pregnant * Individuals accommodated in an institution because of regulatory or legal order; prisoners or subjects who are legally institutionalized * Participants are dependent on the Sponsor or Investigator (in conjunction with Section 1.61 of the ICH GCP Ordinance E6) * Participants are employees of the clinical study site or other individuals directly involved in the conduct of the study, or immediate family members of such individuals * Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that, in the opinion of the Investigator, contraindicates participation in the study * Any country-related specific regulation that would prevent the subject from entering the study The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Allianz Research Institute Site Number : 8400020
Westminster, California, 92683, United States
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American Health Research Site Number : 8400005
Charlotte, North Carolina, 28277, United States
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Investigational Site Number : 1000002
Sofia, 1680, Bulgaria
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Investigational Site Number : 1000003
Sofia, 1233, Bulgaria
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Investigational Site Number : 1000004
Montana, 3403, Bulgaria
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Investigational Site Number : 1000005
Sofia, 1202, Bulgaria
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Investigational Site Number : 1000006
Sofia, 1233, Bulgaria
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Investigational Site Number : 1000007
Stara Zagora, 6001, Bulgaria
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Investigational Site Number : 1000008
Rousse, 7002, Bulgaria
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Investigational Site Number : 1000010
Sofia, 1431, Bulgaria
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Investigational Site Number : 1000011
Sofia, 1407, Bulgaria
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Investigational Site Number : 1000012
Plovdiv, 4002, Bulgaria
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Investigational Site Number : 1000013
Dupnitsa, 2600, Bulgaria
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Investigational Site Number : 1000015
Sofia, 1000, Bulgaria
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Investigational Site Number : 1000018
Plovdiv, 4000, Bulgaria
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Investigational Site Number : 1580001
Taipei, 110, Taiwan
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Investigational Site Number : 1580002
Taichung, 40447, Taiwan
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Investigational Site Number : 1580003
Tainan, 704, Taiwan
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Investigational Site Number : 1580004
Kaohsiung City, 807, Taiwan
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Investigational Site Number : 2080001
Hvidovre, 2650, Denmark
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Investigational Site Number : 2080002
Copenhagen, 2100, Denmark
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Investigational Site Number : 2080003
Copenhagen Nv, 2400, Denmark
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Investigational Site Number : 2080006
Aarhus N, 8200, Denmark
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Investigational Site Number : 2500001
Montpellier, France
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Investigational Site Number : 3800001
Pisa, 56124, Italy
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Investigational Site Number : 3800003
Cona, Ferrara, 44124, Italy
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Investigational Site Number : 3800004
Rozzano, Milano, 20089, Italy
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Investigational Site Number : 6200001
Porto, 4202-451, Portugal
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Investigational Site Number : 6200003
Porto, 4100-180, Portugal
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Investigational Site Number : 6200004
Coimbra, 3000-075, Portugal
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Investigational Site Number : 6200005
Guimarães, 4810-061, Portugal
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Investigational Site Number : 6200006
Lisbon, 1649-035, Portugal
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Investigational Site Number : 6420001
Cluj-Napoca, 400371, Romania
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Investigational Site Number : 6420003
Timișoara, 300134, Romania
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Investigational Site Number : 6420005
Bragadiru, 769764, Romania
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Investigational Site Number : 6420006
Cluj-Napoca, 400275, Romania
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Investigational Site Number : 6420007
Oradea, 410155, Romania
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Investigational Site Number : 6420008
Brasov, 500283, Romania
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Investigational Site Number : 6820001
Riyadh, 11525, Saudi Arabia
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Investigational Site Number : 6820002
Riyadh, 12372, Saudi Arabia
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Investigational Site Number : 6820004
Jeddah, 21423, Saudi Arabia
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Investigational Site Number : 6820006
Riyadh, 11426, Saudi Arabia
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Investigational Site Number : 6820008
Dammam, 31952, Saudi Arabia
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Investigational Site Number : 6820010
Riyadh, 12746, Saudi Arabia
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Investigational Site Number : 7240001
Barcelona, Barcelona [Barcelona], 08035, Spain
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Investigational Site Number : 7240002
Santiago de Compostela, Galicia [Galicia], 15706, Spain
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Investigational Site Number : 7240003
Madrid, Madrid, Comunidad de, 28046, Spain
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Investigational Site Number : 7240005
Madrid, Madrid, Comunidad de, 28041, Spain
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Investigational Site Number : 7520001
Lund, 221 85, Sweden
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Investigational Site Number : 8040001
Ivano-Frankivsk, 76018, Ukraine
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Investigational Site Number : 8040002
Kharkiv, 61124, Ukraine
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Investigational Site Number : 8040003
Chernivtsi, 58001, Ukraine
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Investigational Site Number : 8040004
Kyiv, 01023, Ukraine
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Investigational Site Number : 8040005
Odesa, 65025, Ukraine
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Investigational Site Number : 8040007
Ternopil, 46000, Ukraine
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Investigational Site Number : 8260001
Leicester, Leicestershire, LE3 9QP, United Kingdom
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Investigational Site Number : 8260002
Bradford, BD9 6RJ, United Kingdom
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Medical University of South Carolina - Pulmonary & Critical Care Clinical Research Program Site Number : 8400009
Charleston, South Carolina, 29425, United States
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The Lung Research Center Site Number : 8400010
Chesterfield, Missouri, 63017, United States
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University of Kansas School of Medicine Site Number : 8400008
Kansas City, Kansas, 66103, United States
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University of Michigan Site Number : 8400002
Ann Arbor, Michigan, 48109, United States
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Velocity Clinical Research, Medford Site Number : 8400014
Medford, Oregon, 97504, United States
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VitaLink Research - Spartanburg Site Number : 8400011
Spartanburg, South Carolina, 29303, United States
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VitaLink Research-Greenville Site Number : 8400013
Greenville, South Carolina, 29615, United States
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~Spartanburg Medical Research Site Number : 8400004
Spartanburg, South Carolina, 29303, United States
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