NCT06473779

Brief Summary

The objective of this study is to assess the potential for tezepelumab-treated patients (subcutaneous administration) to reduce maintenance therapy without loss of asthma control in adolescent and adults with severe asthma.. Study details include:

  1. 1.The study duration will be up to 72 weeks.
  2. 2.The treatment duration will be up to 68 weeks.
  3. 3.The visit frequency will be once every 4 weeks (Q4W).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
326

participants targeted

Target at P50-P75 for phase_3

Timeline
14mo left

Started Sep 2024

Typical duration for phase_3

Geographic Reach
12 countries

70 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress59%
Sep 2024Jun 2027

First Submitted

Initial submission to the registry

June 10, 2024

Completed
15 days until next milestone

First Posted

Study publicly available on registry

June 25, 2024

Completed
3 months until next milestone

Study Start

First participant enrolled

September 30, 2024

Completed
2.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 25, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 25, 2027

Last Updated

March 12, 2026

Status Verified

March 1, 2026

Enrollment Period

2.7 years

First QC Date

June 10, 2024

Last Update Submit

March 11, 2026

Conditions

Keywords

Severe AsthmaICS reductionAsthma controlClinical remission

Outcome Measures

Primary Outcomes (1)

  • Proportion of patients who reduced their SYMBICORT® daily maintenance dose without the loss of asthma control at the end of the step-down phase.

    Proportion of patients who reduced their SYMBICORT® daily maintenance dose without the loss of asthma control at the end of the step-down phase to either: Outside of the US: * Medium-dose maintenance and reliever therapy, or * Low-dose maintenance and reliever therapy, or * SYMBICORT® anti-inflammatory reliever only In the US: * Medium-dose SYMBICORT® and AIRSUPRA®,or * Low-dose SYMBICORT® and AIRSUPRA®, or * AIRSUPRA® only

    Week 56

Secondary Outcomes (41)

  • Proportion of patients in asthma control

    Week 24

  • Proportion of patients with characteristics of clinical remission

    Week 24

  • Proportion of patients in asthma control at Week 56 among those in asthma control at Week 24

    Week 56

  • Proportion of patients in asthma control at Week 72 among those in asthma control at Week 24

    Week 72

  • Proportion of patients in asthma control at both Week 56 and Week 72 among those in asthma control at Week 24

    Week 56 and Week 72

  • +36 more secondary outcomes

Study Arms (3)

Group 1 - Asthma Control or Low Biomarkers - Step-down of ICS

EXPERIMENTAL

Asthma Control or Low Biomarkers - Step-down of ICS. Only patients with asthma control or low biomarkers at Week 24 will be randomized into Group 1 or 2

Combination Product: TezepelumabCombination Product: Budesonide/formoterolCombination Product: Albuterol/budesonide (AIRSUPRA®)Combination Product: MannitolCombination Product: Salbutamol

Group 2 - Asthma Control or Low Biomarkers - No Step-down of ICS

EXPERIMENTAL

Asthma Control or Low Biomarkers - No Step-down of ICS. Only patients with asthma control or low biomarkers at Week 24 will be randomized into Group 1 or 2

Combination Product: TezepelumabCombination Product: Budesonide/formoterolCombination Product: Albuterol/budesonide (AIRSUPRA®)Combination Product: MannitolCombination Product: Salbutamol

Group 3 - No Asthma Control or Low Biomarkers - No Step-down of ICS

EXPERIMENTAL

No Asthma Control or Low Biomarkers - No Step-down of ICS

Combination Product: TezepelumabCombination Product: Budesonide/formoterolCombination Product: Albuterol/budesonide (AIRSUPRA®)Combination Product: Mannitol

Interventions

TezepelumabCOMBINATION_PRODUCT

IMP. Subcutaneous injection. Unit dose strengths 210 mg.

Also known as: TEZSPIRE®
Group 1 - Asthma Control or Low Biomarkers - Step-down of ICSGroup 2 - Asthma Control or Low Biomarkers - No Step-down of ICSGroup 3 - No Asthma Control or Low Biomarkers - No Step-down of ICS
Budesonide/formoterolCOMBINATION_PRODUCT

AxMP. Oral inhalation. High-dose: 160 μg/4.5 μg per inhalation; Medium and Low-dose: 80 μg/4.5 μg per inhalation

Also known as: SYMBICORT® pMDI
Group 1 - Asthma Control or Low Biomarkers - Step-down of ICSGroup 2 - Asthma Control or Low Biomarkers - No Step-down of ICSGroup 3 - No Asthma Control or Low Biomarkers - No Step-down of ICS

AxMP. Oral inhalation. Reliever only. Unit dose strengths 90 μg/80 μg per inhalation In US only.

Also known as: AIRSUPRA®
Group 1 - Asthma Control or Low Biomarkers - Step-down of ICSGroup 2 - Asthma Control or Low Biomarkers - No Step-down of ICSGroup 3 - No Asthma Control or Low Biomarkers - No Step-down of ICS
MannitolCOMBINATION_PRODUCT

NIMP. Oral nebulization. Unit dose strengths: Graduated doses of 0 mg, 5 mg, 10 mg, 20 mg and 40 mg capsules

Also known as: ARIDOL®
Group 1 - Asthma Control or Low Biomarkers - Step-down of ICSGroup 2 - Asthma Control or Low Biomarkers - No Step-down of ICSGroup 3 - No Asthma Control or Low Biomarkers - No Step-down of ICS
SalbutamolCOMBINATION_PRODUCT

AxMP. Used outside the US only. Oral inhalation. Unit dose strengths: 100 μg per inhalation

Also known as: Sabumalin, albuterol, ventolin HFA, Proair HFA, Proventil HFA
Group 1 - Asthma Control or Low Biomarkers - Step-down of ICSGroup 2 - Asthma Control or Low Biomarkers - No Step-down of ICS

Eligibility Criteria

Age12 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Informed Consent
  • Provision of signed and dated written ICF prior to any mandatory study-specific procedures, sampling, and analyses for patients who are at or over the age of majority (as per local law). For patients who are less than the age of majority, in addition to providing their informed consent, the patients' legally authorised representative must also provide their informed assent (Appendix A 3).
  • Age
  • Patients must be 12 to 80 years of age inclusive, at the time of signing the ICF.
  • Type of Patient and Disease Characteristics
  • Documented medical record history for at least 12 months prior to Visit 1.
  • Documented physician-diagnosed severe asthma within 10 years prior to Visit 1 (ie, severe asthma was not diagnosed more than 10 years prior) consisting of any of the following:
  • FEV1 \> 12% reversibility, OR
  • Evidence of airflow variability (to show that lung function is altered over time): FEV1 ≥ 400 mL variability over time, OR
  • Challenge tests that are positive on one of the below:
  • (i) Methacholine - PD20 ≤ 8 mg/mL (ii) Mannitol - PD15 15% drop on FEV1 out of dose \< than 635 mg of inhaled mannitol (iii) Exercise - 10% fall of FEV1
  • ACQ-5 ≥ 1.5 and \< 3.
  • History of physician-diagnosed asthma that requires continuous treatment with high-dose ICS (as defined by GINA or highest approved dose per posology per country) plus a LABA for at least 6 months prior to Visit 1 (Appendix I). The ICS and LABA can be contained within a combination product or given by separate inhalers.
  • Note: Additional maintenance asthma controller medications (eg, LTRAs, tiotropium, cromone, theophylline) are allowed.
  • Documented history of at least one asthma exacerbation requiring OCS bursts or requiring hospitalization within 12 months prior to Visit 1. An asthma exacerbation will be defined as a worsening of asthma symptoms that leads to any of the following:
  • +24 more criteria

You may not qualify if:

  • Medical Conditions
  • Any clinically important pulmonary disease other than asthma (eg, active lung infection, chronic obstructive pulmonary disease, bronchiectasis, pulmonary fibrosis, cystic fibrosis, hypoventilation syndrome associated with obesity, lung cancer, alpha 1 anti-trypsin deficiency, and primary ciliary dyskinesia) or pulmonary or systemic diseases, other than asthma, that are associated with elevated peripheral EOS counts (eg, allergic bronchopulmonary aspergillosis/mycosis, Churg-Strauss syndrome, hypereosinophilic syndrome).
  • Any disorder, including, but not limited to, cardiovascular, gastrointestinal, hepatic, renal, neurological, musculoskeletal, infectious, endocrine, metabolic, haematological, psychiatric, or major physical impairment that is not stable in the opinion of the investigator and could:
  • Affect the safety of the patient throughout the study
  • Influence the findings of the study or the interpretation
  • Impede the patient's ability to complete the entire duration of study.
  • A helminth parasitic infection diagnosed within 6 months prior to Visit 1 that has not been treated with, or has failed to respond to, standard of care therapy.
  • Current smokers or patients with smoking history ≥ 10 pack-years and patients using vaping products, including electronic cigarettes. Former smokers with a smoking history of \< 10 pack-years and users of vaping or e-cigarette products must have stopped for at least 6 months prior to Visit 1 to be eligible.
  • History of chronic alcohol or drug abuse within 12 months prior to Visit 1.
  • Tuberculosis requiring treatment within the 12 months prior to Visit 1.
  • History of known immunodeficiency disorder including a positive human immunodeficiency virus test at Visit 1, or the patient taking antiretroviral medications as determined by medical history and/or patient's verbal report.
  • Major surgery within 8 weeks prior to Visit 1 or planned surgical procedures requiring general anaesthesia or inpatient status for \> 1 day during the conduct of the study.
  • Evidence of COVID-19 within 4 weeks prior to screening or ongoing clinically significant COVID-19 sequelae.
  • Prior/Concomitant Therapy
  • Receipt of any marketed or investigational biologic agent within 4 months or 5 half-lives (whichever is longer) prior to Visit 1 or receipt of any investigational nonbiologic agent within 30 days or 5 half-lives (whichever is longest) prior to Visit 1.
  • +17 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (70)

Research Site

Palmdale, California, 93551, United States

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Colorado Springs, Colorado, 80907, United States

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Miami, Florida, 33136, United States

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Boston, Massachusetts, 02115, United States

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St Louis, Missouri, 63110, United States

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New Brunswick, New Jersey, 08901, United States

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Oklahoma City, Oklahoma, 73120, United States

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McAllen, Texas, 78503, United States

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Berazategui, 1104, Argentina

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CABA, C1012AAR, Argentina

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Concepción del Uruguay, 3260, Argentina

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Mendoza, 5500, Argentina

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Mendoza, M5500CCG, Argentina

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Quilmes, B1878FNR, Argentina

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Rosario, 2000, Argentina

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Rosario, 2002, Argentina

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San Miguel de Tucumán, 4000, Argentina

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Santa Fe, 3000, Argentina

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Anderlecht, 1070, Belgium

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Edegem, 2650, Belgium

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Erpent, 5101, Belgium

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Ghent, 9000, Belgium

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Liège, 4000, Belgium

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Haskovo, 6300, Bulgaria

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Pleven, 5804, Bulgaria

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Razgrad, 7200, Bulgaria

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Rousse, 7002, Bulgaria

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Sofia, 1154, Bulgaria

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Sofia, 1431, Bulgaria

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Stara Zagora, 6003, Bulgaria

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Velika Tarnovo, 5250, Bulgaria

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Vancouver, British Columbia, V5Z 1M9, Canada

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Ajax, Ontario, L1S 2J5, Canada

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Windsor, Ontario, N8X 1T3, Canada

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Québec, Quebec, G1V 4G5, Canada

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Sherbrooke, Quebec, J1H 5N4, Canada

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Regina, Saskatchewan, S7N 5A2, Canada

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Aalborg, 9000, Denmark

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Hvidovre, 2650, Denmark

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Svendborg, 5700, Denmark

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Vejle, 7100, Denmark

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Créteil, 94000, France

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La Tronche, 38700, France

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Lyon, 69004, France

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Marseille, 13915, France

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Montpellier, 34295, France

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Strasbourg, 67091, France

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Augsburg, 86150, Germany

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Bonn, 53127, Germany

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Cottbus, 03050, Germany

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Hanover, 30625, Germany

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Mainz, 55128, Germany

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Florence, 50134, Italy

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Orbassano, 10043, Italy

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Roma, 00161, Italy

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Roma, 00168, Italy

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Verona, 37134, Italy

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Chihuahua City, 31200, Mexico

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Cuauhtémoc, 06700, Mexico

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Monterrey, 64360, Mexico

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Badalona(Barcelona), 08916, Spain

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Barcelona, 08035, Spain

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Lugo, 27002, Spain

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Madrid, 28006, Spain

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Madrid, 28040, Spain

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Madrid, 28041, Spain

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Belfast, BT9 7BL, United Kingdom

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Liverpool, L7 8XP, United Kingdom

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London, SE1 9RT, United Kingdom

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Southampton, SO16 6YD, United Kingdom

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MeSH Terms

Conditions

Asthma

Interventions

tezepelumabBudesonide, Formoterol Fumarate Drug CombinationAlbuterolBudesonideMannitol

Condition Hierarchy (Ancestors)

Bronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivityHypersensitivity, ImmediateHypersensitivityImmune System Diseases

Intervention Hierarchy (Ancestors)

Formoterol FumarateEthanolaminesAmino AlcoholsAlcoholsOrganic ChemicalsAminesPregnenedionesPregnenesPregnanesSteroidsFused-Ring CompoundsPolycyclic CompoundsDrug CombinationsPharmaceutical PreparationsPhenethylaminesEthylaminesSugar AlcoholsCarbohydrates

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Open-Label, Parallel-Group treatment study with 3 arms. Participants will be treated with tezepelumab Q4W from Week 0, with the last dose administered at Week 68
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 10, 2024

First Posted

June 25, 2024

Study Start

September 30, 2024

Primary Completion (Estimated)

June 25, 2027

Study Completion (Estimated)

June 25, 2027

Last Updated

March 12, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will share

Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal Vivli.org. All requests will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. "Yes", indicates that AZ are accepting requests for IPD, but this does not mean all requests will be approved.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA/PhRMA Data-Sharing Principles. For details of our timelines, please refer to our disclosure commitment at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
Access Criteria
When a request has been approved AstraZeneca will provide access to the anonymized individual patient-level data via secure research environment Vivli.org. A Signed Data Usage Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information.
More information

Locations