A Study to Investigate the Efficacy and Safety of Tezepelumab Compared With Placebo in Children 5 to < 12 Years Old With Severe Asthma

NCT ID: NCT06023589

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

231 participants

Study Classification

INTERVENTIONAL

Study Start Date

2023-08-24

Study Completion Date

2030-08-23

Brief Summary

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To assess the efficacy and safety of tezepelumab in pediatric participants with severe uncontrolled asthma on medium to high-dose inhaled corticosteroids (ICS) and at least one additional asthma controller medication with or without oral corticosteroids.

Detailed Description

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This is a phase-3 multicentre, double-blind, parallel-group placebo-controlled, randomised study.

The study will comprise of:

1. Screening/Run-in period of 4 to 6 weeks,
2. 52-week double-blind Treatment period,
3. Post-treatment Follow-up period of 12 weeks.

Participants will be randomised 2:1 to receive either tezepelumab or placebo administered by (SC) Subcutaneous injections for 52 weeks (double-blind Treatment period).

There will then be a 12-week off-treatment Follow-up period for participants who do not continue in the optional open-label Active Treatment Extension period.

An optional open-label Active Treatment Extension will allow all eligible participants the opportunity to receive active treatment with tezepelumab. The Active Treatment Extension period of the study will start following the 52-week double-blind Treatment period and will consist of a 104-week open-label Treatment period prior to the 12-week post-treatment Follow-up period.

Conditions

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Asthma

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Participants will be randomized in a 2:1 ratio to either tezepelumab or matching placebo both administered subcutaneously
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators
Double-Blind

Study Groups

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Tezepelumab

Participants will be receiving tezepelumab subcutaneous injection

Group Type EXPERIMENTAL

Tezepelumab

Intervention Type BIOLOGICAL

Participants will be receiving subcutaneous injection of tezepelumab

Placebo

Participants will be receiving placebo through a subcutaneous injection

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type OTHER

Participants will be receiving subcutaneous injection of matching placebo

Interventions

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Tezepelumab

Participants will be receiving subcutaneous injection of tezepelumab

Intervention Type BIOLOGICAL

Placebo

Participants will be receiving subcutaneous injection of matching placebo

Intervention Type OTHER

Other Intervention Names

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MEDI9929 and AMG157

Eligibility Criteria

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Inclusion Criteria

1. Written informed consent from (ICF) at least one parent/caregiver (as per local guidelines) and accompanying informed assent from the participant (where the participant is able to provide assent) prior to admission to the study.
2. Participants must be 5 to \< 12 years of age, at the time of signing the assent form (as applicable per local guidelines) and their caregivers signing the ICF and at Visit 3.
3. Documented physician diagnosis of severe asthma confirmed and evaluated for at least 6 months prior to Visit 1.
4. Documented physician-prescribed treatment with a total daily dose of either medium or high dose, for at least 3 months with stable dose ≥ 1 month prior to Visit 1.
5. Documented treatment with at least one additional maintenance asthma controller medication is required according to local guidelines and standard of care; (long-acting beta agonist, leukotriene receptor antagonist, long-acting muscarinic antagonist) for at least 3 months with stable dose ≥ 1 month prior to Visit 1.
6. Supportive evidence of asthma as documented by one of the following:

1. Post-BD (albuterol/salbutamol) responsiveness of FEV1 ≥ 10% during Screening (15 to 30 min after administration of 4 puffs of albuterol/salbutamol with a maximum of 12 puffs of reliever medication only if tolerated by the participant) at either Visit 1 or Visit 2.

If (a) is not achieved at Visit 1 or Visit 2, historical documentation by any of the below prior to Visit 1:
2. Post-BD responsiveness of FEV1 ≥ 10%.
3. Positive methacholine challenge defined as provocative concentration (PC20) of ≤ 16 mg/mL.
4. PEF average daily diurnal variability \> 13% over a 2-week period.
5. Variability of FEV1 ≥ 12% between any two clinical visits.
6. Positive exercise challenge test (defined as a fall in FEV1 of \> 12%).
7. FeNO ≥ 20 ppb despite confirmed ICS maintenance therapy.
7. History of at least 2 severe asthma exacerbation events OR 1 severe asthma exacerbation event resulting in hospitalisation within 12 months prior to Visit 1.
8. Pre-BD FEV1 \>50% and ≤ 95%PN OR FEV1/forced vital capacity (FVC) ratio ≤ 0.85 at either Visit 1 or Visit 2.
9. Evidence of uncontrolled asthma, with at least 1 of the below criteria:

1. ACQ-IA score ≥ 1.5 at least once during Screening/Run-in, including Visit 3 (prior to Randomisation) for participants ≥ 6 years old at Screening.
2. Use of reliever medication, other than as a preventive for exercise induced bronchospasm, on 3 or more days per week for at least 1 week during the Screening/Run-in period.
3. Sleep awakening due to asthma symptoms requiring use of reliever medication at least once during the Screening/Run-in period.
4. Asthma symptoms 3 or more days per week in at least 1 week during the Screening/Run-in period.
10. Body weight ≥ 16 kg at Visit 1 (Screening) and Visit 3 (Randomisation).

Exclusion Criteria

1. History of vocal cord dysfunction, cystic fibrosis, primary ciliary dyskinesia, or chronic rhinosinusitis with nasal polyposis.
2. History of any clinically significant disease or disorder other than asthma which, in the opinion of the investigator, may either put the participant at risk because of participation in the study, or influence the results or the participant's ability to participate in the study.
3. History of a clinically significant deterioration in asthma or asthma exacerbation including those requiring use of systemic corticosteroids or increase in the maintenance dose of oral corticosteroids within 30 days prior to Visit 1.
4. Change in ICS dose within 1 month prior to Visit 1.
5. History of a life-threatening asthma exacerbation resulting in a hypoxic seizure or requiring intubation.
Minimum Eligible Age

5 Years

Maximum Eligible Age

11 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Amgen

INDUSTRY

Sponsor Role collaborator

AstraZeneca

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Research Site

Montgomery, Alabama, United States

Site Status RECRUITING

Research Site

Phoenix, Arizona, United States

Site Status RECRUITING

Research Site

Little Rock, Arkansas, United States

Site Status WITHDRAWN

Research Site

La Jolla, California, United States

Site Status RECRUITING

Research Site

Long Beach, California, United States

Site Status NOT_YET_RECRUITING

Research Site

Orange, California, United States

Site Status WITHDRAWN

Research Site

San Diego, California, United States

Site Status RECRUITING

Research Site

Atlanta, Georgia, United States

Site Status RECRUITING

Research Site

Savannah, Georgia, United States

Site Status COMPLETED

Research Site

Boston, Massachusetts, United States

Site Status RECRUITING

Research Site

Boston, Massachusetts, United States

Site Status RECRUITING

Research Site

Ann Arbor, Michigan, United States

Site Status COMPLETED

Research Site

Detroit, Michigan, United States

Site Status RECRUITING

Research Site

Northfield, New Jersey, United States

Site Status RECRUITING

Research Site

Schenectady, New York, United States

Site Status WITHDRAWN

Research Site

Staten Island, New York, United States

Site Status RECRUITING

Research Site

Chapel Hill, North Carolina, United States

Site Status RECRUITING

Research Site

Cincinnati, Ohio, United States

Site Status RECRUITING

Research Site

Cleveland, Ohio, United States

Site Status RECRUITING

Research Site

Toledo, Ohio, United States

Site Status RECRUITING

Research Site

Oklahoma City, Oklahoma, United States

Site Status RECRUITING

Research Site

Columbia, South Carolina, United States

Site Status WITHDRAWN

Research Site

Coppell, Texas, United States

Site Status COMPLETED

Research Site

Dallas, Texas, United States

Site Status RECRUITING

Research Site

Frisco, Texas, United States

Site Status WITHDRAWN

Research Site

San Antonio, Texas, United States

Site Status RECRUITING

Research Site

Temple, Texas, United States

Site Status WITHDRAWN

Research Site

Buenos Aires, , Argentina

Site Status RECRUITING

Research Site

Buenos Aires, , Argentina

Site Status RECRUITING

Research Site

Buenos Aires, , Argentina

Site Status RECRUITING

Research Site

CABA, , Argentina

Site Status RECRUITING

Research Site

Florida, , Argentina

Site Status RECRUITING

Research Site

Lanús, , Argentina

Site Status RECRUITING

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Lobos, , Argentina

Site Status RECRUITING

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Mendoza, , Argentina

Site Status RECRUITING

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Quilmes, , Argentina

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Rosario, , Argentina

Site Status RECRUITING

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Blumenau, , Brazil

Site Status RECRUITING

Research Site

Curitiba, , Brazil

Site Status RECRUITING

Research Site

Salvador, , Brazil

Site Status WITHDRAWN

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São Paulo, , Brazil

Site Status RECRUITING

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São Paulo, , Brazil

Site Status RECRUITING

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São Paulo, , Brazil

Site Status RECRUITING

Research Site

Sorocaba, , Brazil

Site Status RECRUITING

Research Site

Edmonton, Alberta, Canada

Site Status RECRUITING

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Burlington, Ontario, Canada

Site Status RECRUITING

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Hamilton, Ontario, Canada

Site Status RECRUITING

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Windsor, Ontario, Canada

Site Status RECRUITING

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Montreal, Quebec, Canada

Site Status RECRUITING

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Beijing, , China

Site Status RECRUITING

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Changchun, , China

Site Status RECRUITING

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Lanzhou, , China

Site Status RECRUITING

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Nanjing, , China

Site Status RECRUITING

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Shanghai, , China

Site Status RECRUITING

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Shanghai, , China

Site Status WITHDRAWN

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Shenyang, , China

Site Status RECRUITING

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Shenzhen, , China

Site Status RECRUITING

Research Site

Wuxi, , China

Site Status RECRUITING

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Bogotá, , Colombia

Site Status WITHDRAWN

Research Site

Bogotá, , Colombia

Site Status WITHDRAWN

Research Site

Medellín, , Colombia

Site Status WITHDRAWN

Research Site

Brest, , France

Site Status RECRUITING

Research Site

Bron, , France

Site Status SUSPENDED

Research Site

Créteil, , France

Site Status RECRUITING

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Marseille, , France

Site Status RECRUITING

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Paris, , France

Site Status RECRUITING

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Paris, , France

Site Status RECRUITING

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Paris, , France

Site Status RECRUITING

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Rouen, , France

Site Status RECRUITING

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Vandœuvre-lès-Nancy, , France

Site Status RECRUITING

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Debrecen, , Hungary

Site Status RECRUITING

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Szeged, , Hungary

Site Status RECRUITING

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Szigetvár, , Hungary

Site Status RECRUITING

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Genova, , Italy

Site Status NOT_YET_RECRUITING

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Pavia, , Italy

Site Status NOT_YET_RECRUITING

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Roma, , Italy

Site Status NOT_YET_RECRUITING

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Fukuoka, , Japan

Site Status RECRUITING

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Fukuoka, , Japan

Site Status RECRUITING

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Fukuyama, , Japan

Site Status RECRUITING

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Funabashi-shi, , Japan

Site Status RECRUITING

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Nara, , Japan

Site Status RECRUITING

Research Site

Odawara, , Japan

Site Status RECRUITING

Research Site

Ōtsu, , Japan

Site Status RECRUITING

Research Site

Saga, , Japan

Site Status RECRUITING

Research Site

Shimotsuga-gun, , Japan

Site Status RECRUITING

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Yokohama, , Japan

Site Status WITHDRAWN

Research Site

Chihuahua City, , Mexico

Site Status NOT_YET_RECRUITING

Research Site

Guadalajara, , Mexico

Site Status RECRUITING

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Mexico City, , Mexico

Site Status NOT_YET_RECRUITING

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Veracruz, , Mexico

Site Status RECRUITING

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Amsterdam, , Netherlands

Site Status RECRUITING

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Rotterdam, , Netherlands

Site Status RECRUITING

Research Site

Iloilo City, , Philippines

Site Status RECRUITING

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Las Piñas, , Philippines

Site Status RECRUITING

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Quezon, , Philippines

Site Status RECRUITING

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Santa Rosa, , Philippines

Site Status RECRUITING

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Lodz, , Poland

Site Status RECRUITING

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Tarnów, , Poland

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Bucharest, , Romania

Site Status RECRUITING

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Bucharest, , Romania

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Bellville, , South Africa

Site Status RECRUITING

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Cape Town, , South Africa

Site Status RECRUITING

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Durban, , South Africa

Site Status RECRUITING

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Durban, , South Africa

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Middelburg, , South Africa

Site Status RECRUITING

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Thabazimbi, , South Africa

Site Status WITHDRAWN

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Vereeniging, , South Africa

Site Status RECRUITING

Research Site

Welkom, , South Africa

Site Status RECRUITING

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Seongnam-si, , South Korea

Site Status WITHDRAWN

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Seongnam-si, , South Korea

Site Status RECRUITING

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Seoul, , South Korea

Site Status RECRUITING

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Seoul, , South Korea

Site Status RECRUITING

Research Site

Badalona, , Spain

Site Status RECRUITING

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Barcelona, , Spain

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Esplugues de Llobregat (Barc), , Spain

Site Status RECRUITING

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Madrid, , Spain

Site Status RECRUITING

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Sabadell, , Spain

Site Status RECRUITING

Research Site

Valencia, , Spain

Site Status RECRUITING

Research Site

Valencia, , Spain

Site Status WITHDRAWN

Research Site

Villarreal, , Spain

Site Status RECRUITING

Research Site

Bangkok, , Thailand

Site Status NOT_YET_RECRUITING

Research Site

Bangkoknoi, , Thailand

Site Status NOT_YET_RECRUITING

Research Site

Chiang Mai, , Thailand

Site Status NOT_YET_RECRUITING

Research Site

Muang, , Thailand

Site Status NOT_YET_RECRUITING

Research Site

Bursa, , Turkey (Türkiye)

Site Status NOT_YET_RECRUITING

Research Site

Istanbul, , Turkey (Türkiye)

Site Status NOT_YET_RECRUITING

Research Site

Izmir, , Turkey (Türkiye)

Site Status NOT_YET_RECRUITING

Research Site

Yenimahalle, , Turkey (Türkiye)

Site Status NOT_YET_RECRUITING

Research Site

Chernivtsi, , Ukraine

Site Status NOT_YET_RECRUITING

Research Site

Ivano-Frankivsk, , Ukraine

Site Status NOT_YET_RECRUITING

Research Site

Kyiv, , Ukraine

Site Status RECRUITING

Research Site

Kyiv, , Ukraine

Site Status RECRUITING

Research Site

Birmingham, , United Kingdom

Site Status RECRUITING

Research Site

Bradford, , United Kingdom

Site Status RECRUITING

Research Site

Bristol, , United Kingdom

Site Status RECRUITING

Research Site

Glasgow, , United Kingdom

Site Status WITHDRAWN

Research Site

Leicester, , United Kingdom

Site Status RECRUITING

Research Site

London, , United Kingdom

Site Status RECRUITING

Research Site

Nottingham, , United Kingdom

Site Status RECRUITING

Research Site

Stoke-on-Trent, , United Kingdom

Site Status RECRUITING

Countries

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United States Argentina Brazil Canada China Colombia France Hungary Italy Japan Mexico Netherlands Philippines Poland Romania South Africa South Korea Spain Thailand Turkey (Türkiye) Ukraine United Kingdom

Central Contacts

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AstraZeneca Clinical Study Information Center

Role: CONTACT

1-877-240-9479

Other Identifiers

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D5180C00016

Identifier Type: -

Identifier Source: org_study_id

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