NCT03347279

Brief Summary

A Multicentre, Randomized, Double-Blind, Placebo Controlled, Parallel Group, Phase 3 Study to Evaluate the Efficacy and Safety of Tezepelumab in Adults and Adolescents with Severe Uncontrolled Asthma

Trial Health

98
On Track

Trial Health Score

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

Strong global presence with extensive site network
Enrollment
1,061

participants targeted

Target at P75+ for phase_3 asthma

Timeline
Completed

Started Nov 2017

Typical duration for phase_3 asthma

Geographic Reach
17 countries

284 active sites

Status
completed

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

First Submitted

Initial submission to the registry

November 9, 2017

Completed
11 days until next milestone

First Posted

Study publicly available on registry

November 20, 2017

Completed
3 days until next milestone

Study Start

First participant enrolled

November 23, 2017

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 8, 2020

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 12, 2020

Completed
1 year until next milestone

Results Posted

Study results publicly available

November 26, 2021

Completed
Last Updated

November 26, 2021

Status Verified

October 1, 2021

Enrollment Period

2.8 years

First QC Date

November 9, 2017

Results QC Date

September 7, 2021

Last Update Submit

October 29, 2021

Conditions

Keywords

Asthma, Uncontrolled Asthma, Severe Uncontrolled Asthma

Outcome Measures

Primary Outcomes (2)

  • Annual Asthma Exacerbation Rate in Adult and Adolescent Patients With Uncontrolled Asthma

    The annual exacerbation rate is based on unadjudicated exacerbations reported by the investigator in the eCRF. The analysis is based on the primary population (Full Analysis Set)

    From randomisation to Study Week 52.

  • Annual Asthma Exacerbation Rate in Adult and Adolescent Patients With Uncontrolled Asthma in Subjects With Baseline Eosinophils < 300 Cells/uL

    The annual exacerbation rate is based on unadjudicated exacerbations reported by the investigator in the eCRF. This analysis is based on subjects with baseline eosinophils \< 300 cells/uL

    From randomisation to Study Week 52.

Secondary Outcomes (26)

  • Mean Change From Baseline at Week 52 in Pre-dose/Pre-bronchodilator (Pre-BD) Forced Expiratory Volume in 1 Second (FEV1) (L) (Key Secondary Endpoint)

    From randomisation to Study Week 52

  • Mean Change From Baseline at Week 52 in Standardized Asthma Quality of Life Questionnaire for 12 Years and Older (AQLQ(S)+12) Total Score (Key Secondary Endpoint)

    From randomisation to Study Week 52

  • Mean Change From Baseline at Week 52 in Asthma Control Questionnaire-6(ACQ-6) (Key Secondary Endpoint)

    From randomisation to Study Week 52

  • Mean Change From Baseline at Week 52 in Asthma Symptom Diary (Key Secondary Endpoint)

    From randomisation to Study Week 52

  • Time to First Asthma Exacerbation

    From randomisation to Study Week 52

  • +21 more secondary outcomes

Other Outcomes (3)

  • Annual Asthma Exacerbation Rate Associated With Hospitalisations

    From randomisation to Study Week 52

  • Annual Asthma Exacerbation Rate Using Adjudicated Data

    From randomisation to Study Week 52

  • Annual Asthma Exacerbation Rate Associated With Emergency Room (ER) Visit or Hospitalisation Using Adjudicated Data

    From randomisation to Study Week 52

Study Arms (2)

Tezepelumab

EXPERIMENTAL

Tezepelumab: Tezepelumab subcutaneous injection

Biological: Experimental: Tezepelumab

Placebo

PLACEBO COMPARATOR

Placebo: Placebo subcutaneous injection

Other: Placebo

Interventions

Tezepelumab subcutaneous injection

Also known as: Tezepelumab
Tezepelumab
PlaceboOTHER

Placebo subcutaneous injection

Placebo

Eligibility Criteria

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

You may qualify if:

  • Age. 12-80
  • Documented physician-diagnosed asthma for at least 12 months
  • Subjects who have received a physician-prescribed asthma controller medication with medium or high dose ICS for at least 12 months.
  • Documented treatment with a total daily dose of either medium or high dose ICS (≥ 500 µg fluticasone propionate dry powder formulation equivalent total daily dose) for at least 3 months.
  • At least one additional maintenance asthma controller medication is required according to standard practice of care and must be documented for at least 3 months.
  • Morning pre-BD FEV1 \<80% predicted normal (\<90% for subjects 12-17 yrs)
  • Evidence of asthma as documented by either: Documented historical reversibility of FEV1 ≥12% and ≥200 mL in the previous 12 months OR Post-BD (albuterol/salbutamol) reversibility of FEV1 ≥12% and ≥200 mL during screening.
  • Documented history of at least 2 asthma exacerbation events within 12 months.
  • ACQ-6 score ≥1.5 at screening and on day of randomization

You may not qualify if:

  • Pulmonary disease other than asthma.
  • History of cancer.
  • History of a clinically significant infection.
  • Current smokers or subjects with smoking history ≥10 pack-years and subjects using vaping products, including electronic cigarettes.
  • History of chronic alcohol or drug abuse within 12 months.
  • Hepatitis B, C or HIV.
  • Pregnant or breastfeeding.
  • History of anaphylaxis following any biologic therapy.
  • Subject randomized in the current study or previous tezepelumab studies.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (289)

Research Site

Dothan, Alabama, 36303, United States

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Foley, Alabama, 36535, United States

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Gilbert, Arizona, 85234, United States

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Tucson, Arizona, 85724, United States

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Bakersfield, California, 93301, United States

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Encinitas, California, 92024, United States

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Huntington Beach, California, 92647, United States

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Long Beach, California, 90808, United States

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Los Angeles, California, 90025, United States

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Mission Viejo, California, 92691, United States

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Newport Beach, California, 92663, United States

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Northridge, California, 91324, United States

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Palm Desert, California, 92260, United States

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Rolling Hills Estates, California, 90274, United States

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Walnut Creek, California, 94598, United States

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Westminster, California, 92683, United States

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Denver, Colorado, 80206, United States

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New Haven, Connecticut, 06520, United States

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Celebration, Florida, 34747, United States

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Kissimmee, Florida, 34741, United States

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Kissimmee, Florida, 34744, United States

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Orlando, Florida, 32803, United States

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Orlando, Florida, 32825, United States

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Panama City, Florida, 32405, United States

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Port Charlotte, Florida, 33952, United States

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Sarasota, Florida, 34239, United States

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Sebring, Florida, 33870, United States

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St. Petersburg, Florida, 33704, United States

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St. Petersburg, Florida, 33710, United States

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St. Petersburg, Florida, 33713, United States

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Tampa, Florida, 33607, United States

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Winter Park, Florida, 32789, United States

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Fayetteville, Georgia, 30214, United States

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Gainesville, Georgia, 30501, United States

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Savannah, Georgia, 31406, United States

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Stockbridge, Georgia, 30281, United States

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Boise, Idaho, 83706, United States

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Michigan City, Indiana, 46360, United States

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Fort Mitchell, Kentucky, 41017, United States

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Louisville, Kentucky, 40215, United States

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Lake Charles, Louisiana, 70601, United States

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Zachary, Louisiana, 70791, United States

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White Marsh, Maryland, 21162, United States

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Boston, Massachusetts, 02115, United States

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Fall River, Massachusetts, 02721, United States

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Ann Arbor, Michigan, 48109, United States

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Flint, Michigan, 48504, United States

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Novi, Michigan, 48375, United States

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Port Huron, Michigan, 48060, United States

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Troy, Michigan, 48085, United States

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St Louis, Missouri, 63108, United States

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St Louis, Missouri, 63141, United States

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Lincoln, Nebraska, 68505, United States

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Las Vegas, Nevada, 89106, United States

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Las Vegas, Nevada, 89119, United States

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Northfield, New Jersey, 08225, United States

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Toms River, New Jersey, 08755, United States

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Brooklyn, New York, 11235, United States

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New York, New York, 10016, United States

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New York, New York, 10022, United States

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New York, New York, 10029, United States

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New York, New York, 10032, United States

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The Bronx, New York, 10459, United States

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The Bronx, New York, 10465, United States

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Valhalla, New York, 10595, United States

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Charlotte, North Carolina, 28277, United States

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Gastonia, North Carolina, 28054, United States

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Winston-Salem, North Carolina, 27104, United States

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Cincinnati, Ohio, 45229, United States

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Cincinnati, Ohio, 45231, United States

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Mayfield Heights, Ohio, 44124, United States

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Toledo, Ohio, 43608, United States

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Edmond, Oklahoma, 73034, United States

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Oklahoma City, Oklahoma, 73120, United States

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Tulsa, Oklahoma, 74136, United States

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Medford, Oregon, 97504, United States

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Pittsburgh, Pennsylvania, 15243, United States

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Warwick, Rhode Island, 02886, United States

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Anderson, South Carolina, 29621, United States

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Columbia, South Carolina, 29204, United States

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Greenville, South Carolina, 29607, United States

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Allen, Texas, 75013, United States

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Amarillo, Texas, 79106, United States

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Boerne, Texas, 78006, United States

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Dallas, Texas, 75225, United States

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Dallas, Texas, 75230, United States

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Lampasas, Texas, 76550, United States

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McAllen, Texas, 78504, United States

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Plano, Texas, 75093, United States

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San Antonio, Texas, 78251, United States

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Manassas, Virginia, 20110, United States

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Richmond, Virginia, 23220, United States

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Richmond, Virginia, 23235, United States

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Cudahy, Wisconsin, 53110, United States

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Madison, Wisconsin, 53792, United States

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Buenos Aires, C1414AIF, Argentina

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CABA, C1056ABJ, Argentina

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CABA, C1425BEN, Argentina

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Ciudad de Buenos Aires, 1425, Argentina

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Córdoba, X5003DCE, Argentina

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Mendoza, 5500, Argentina

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Nueve de Julio, B6500EZL, Argentina

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Quilmes, B1878FNR, Argentina

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Campbelltown, 2560, Australia

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Kent Town, 5067, Australia

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Melbourne, 3004, Australia

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Nedlands, 6009, Australia

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New Lambton, 2310, Australia

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Spearwood, 6163, Australia

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Westmead, 2145, Australia

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Woolloongabba, 4102, Australia

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Klagenfurt, 9020, Austria

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Linz, 4020, Austria

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Salzburg, 5020, Austria

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Vienna, 1090, Austria

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Vienna, 1130, Austria

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Blumenau, 89030-101, Brazil

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Botucatu, 18618-970, Brazil

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Curitiba, 80060-900, Brazil

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Porto Alegre, 9002-060, Brazil

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Porto Alegre, 90035-074, Brazil

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Porto Alegre, 90610-000, Brazil

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Porto Alegre, 90619-900, Brazil

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Porto Alegre, 91350-200, Brazil

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Recife, 50070-550, Brazil

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Salvador, 41940-455, Brazil

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Santo André, 09080-110, Brazil

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São Bernardo do Campo, 09750-420, Brazil

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Sorocaba, 18040-425, Brazil

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Vitória, 29055-450, Brazil

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Calgary, Alberta, T2N 4Z6, Canada

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Sherwood Park, Alberta, T8L 0N2, Canada

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Vancouver, British Columbia, V5Z 1M9, Canada

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Ajax, Ontario, L1S 2J5, Canada

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Burlington, Ontario, L7N 3V2, Canada

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Mississauga, Ontario, L5A 3V4, Canada

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Ottawa, Ontario, K1G 6C6, Canada

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Windsor, Ontario, N8X 1T3, Canada

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Montreal, Quebec, H4J 1C5, Canada

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Québec, Quebec, G1G 3Y8, Canada

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Saint-Charles-Borromée, Quebec, J6E 2B4, Canada

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Trois-Rivières, Quebec, G8T 7A1, Canada

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Brest, 29609, France

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Grenoble, 38043, France

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Le Kremlin-Bicêtre, 94275, France

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Lille, 59037, France

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Lyon, 69317, France

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Marseille, 13015, France

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Montpellier, 34295, France

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Nantes, 44093, France

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Paris, 75015, France

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Paris, 75571, France

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Paris, 75877, France

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Pessac, 33604, France

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Strasbourg, 67091, France

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Toulouse, 31059, France

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Bamberg, 96049, Germany

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Berlin, 10367, Germany

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Berlin, 10717, Germany

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Frankfurt, 60596, Germany

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Frankfurt am Main, 60596, Germany

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Hamburg, 20354, Germany

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Hamburg, 22299, Germany

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Hanover, 30625, Germany

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Hanover, D-30173, Germany

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Landsberg, 86899, Germany

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Leipzig, 04103, Germany

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Leipzig, 04357, Germany

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Lübeck, 23552, Germany

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Mainz, 55131, Germany

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Ashkelon, 7830604, Israel

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Haifa, 34362, Israel

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Jerusalem, 91031, Israel

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Jerusalem, 91120, Israel

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Kfar Saba, 49281, Israel

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Rehovot, 7661041, Israel

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Bunkyō City, 113-8431, Japan

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Chūōku, 103-0022, Japan

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Chūōku, 103-0028, Japan

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Chūōku, 104-0031, Japan

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Edogawa-ku, 134-0083, Japan

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Fujieda-shi, 426-8677, Japan

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Fukuoka, 810-0001, Japan

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Fukuoka, 811-1394, Japan

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Fukuoka, 815-8588, Japan

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Habikino-shi, 583-8588, Japan

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Hamamatsu, 431-3192, Japan

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Higashiibaraki-gun, 311-3193, Japan

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Himeji-shi, 672-8064, Japan

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Hitachi-shi, 317-0077, Japan

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Itabashi-ku, 173-0003, Japan

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Itabashi-ku, 173-8610, Japan

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Kagoshima, 890-0073, Japan

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Kagoshima, 890-8520, Japan

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Kanazawa, 920-8530, Japan

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Kanazawa, 920-8641, Japan

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Kasuga-shi, 816-0813, Japan

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Kishiwada-shi, 596-8501, Japan

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Kitakyushu, 802-0052, Japan

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Koga-shi, 811-3195, Japan

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Matsusaka-shi, 515-8544, Japan

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Meguro-ku, 152-0021, Japan

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Meguro-ku, 152-8621, Japan

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Minatoku, 105-0003, Japan

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Minatoku, 105-0004, Japan

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Minatoku, 108-0014, Japan

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Mizunami-shi, 509-6134, Japan

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Nagaoka-shi, 940-2085, Japan

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Niigata, 951-8520, Japan

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Ogaki-shi, 503-8502, Japan

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Ohota-ku, 145-0063, Japan

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Omuta-shi, 837-0911, Japan

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Sagamihara-shi, 228-0815, Japan

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Sapporo, 001-0901, Japan

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Sapporo, 064-0804, Japan

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Setagaya-ku, 157-0072, Japan

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Shibuya-ku, 150-0013, Japan

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Shinagawa-ku, 140-8522, Japan

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Shinagawa-ku, 142-8666, Japan

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Shinjuku-ku, 162-8655, Japan

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Shinjuku-ku, 162-8666, Japan

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Sumida-ku, 130-0015, Japan

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Takamatsu, 761-8073, Japan

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Toshima-ku, 170-0003, Japan

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Toshima-ku, 171-0014, Japan

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Ube, 755-8505, Japan

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Yokkaichi-shi, 510-8567, Japan

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Yokohama, 223-0059, Japan

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Yokohama, 236-0004, Japan

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Yokohama, 236-0024, Japan

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Yoshida-gun, 910-1193, Japan

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Izhevsk, 426035, Russia

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Moscow, 115093, Russia

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Moscow, 115522, Russia

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Saint Petersburg, 193231, Russia

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Jeddah, 21423, Saudi Arabia

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Jeddah, 22252, Saudi Arabia

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Bellville, 7530, South Africa

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Boksburg North, 1460, South Africa

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Cape Town, 7570, South Africa

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Cape Town, 7764, South Africa

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Durban, 4001, South Africa

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Durban, 4091, South Africa

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Durban, 4092, South Africa

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Durban, 4450, South Africa

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eMkhomazi, 4170, South Africa

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Johannesburg, 1724, South Africa

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Johannesburg, 1829, South Africa

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Johannesburg, 2113, South Africa

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Lenasia Ext8, 1820, South Africa

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Middelburg, 1055, South Africa

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Mowbray, 7700, South Africa

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Parow, 7505, South Africa

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Pretoria, 0157, South Africa

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Witbank, 1035, South Africa

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Bucheon-si, 14584, South Korea

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Cheongju-si, 28644, South Korea

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Daegu, 41404, South Korea

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Daegu, 42415, South Korea

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Jeju City, 690-767, South Korea

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Jeonju, 54907, South Korea

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Seongnam-si, 13620, South Korea

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Seoul, 02447, South Korea

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Seoul, 03080, South Korea

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Seoul, 03312, South Korea

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Seoul, 03722, South Korea

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Seoul, 05505, South Korea

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Seoul, 06351, South Korea

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Seoul, 06591, South Korea

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Seoul, 07985, South Korea

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Seoul, 08308, South Korea

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Seoul, 150-713, South Korea

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Suwon, 16499, South Korea

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Hsinchu, 300, Taiwan

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Kaohsiung City, 80756, Taiwan

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Kaohsiung City, 82445, Taiwan

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Kaohsiung Hsien, TAIWAN, Taiwan

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Taichung, 40443, Taiwan

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Tainan, 70403, Taiwan

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Taipei, 220216, Taiwan

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Taipei, 235, Taiwan

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Yilan, 260, Taiwan

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Ivano-Frankivsk, 76018, Ukraine

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Kharkiv Region, 61075, Ukraine

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London, SW3 6NP, United Kingdom

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Hanoi, 100000, Vietnam

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Hanoi, 10000, Vietnam

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Hà Nội, 100000, Vietnam

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Ho Chi Minh City, 70000, Vietnam

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Related Publications (15)

  • Feleszko W, Caminati M, Gern JE, Johnston SL, Marchese C, Clarke D, Ambrose CS, Lindsley AW. Effect of tezepelumab on asthma exacerbations co-occurring with infection-attributed acute respiratory illnesses. Ann Allergy Asthma Immunol. 2026 Jan;136(1):61-65.e1. doi: 10.1016/j.anai.2025.09.015. Epub 2025 Oct 8.

  • Yang X, Wang L, Huang K, Tang W, Berame EJ, Park HS, Hunter G, Jiang W, Wu CC, Min CW, Domek-Zielinska K, Lal H, Molfino NA, Ponnarambil SS, Zhong N. Efficacy and Safety of Tezepelumab in Adults With Severe, Uncontrolled Asthma in Asia: Results From the Phase 3 DIRECTION Study. J Allergy Clin Immunol Pract. 2025 Nov;13(11):3011-3020.e9. doi: 10.1016/j.jaip.2025.07.046. Epub 2025 Aug 7.

  • Pavord ID, Brightling CE, Korn S, Martin NL, Ponnarambil SS, Molfino NA, Parnes JR, Ambrose CS. Tezepelumab can Restore Normal Lung Function in Patients with Severe, Uncontrolled Asthma: Pooled Results from the PATHWAY and NAVIGATOR Studies. Pulm Ther. 2025 Jun;11(2):315-325. doi: 10.1007/s41030-025-00294-2. Epub 2025 Apr 26.

  • Jacobs JS, Han JK, Lee JK, Laidlaw TM, Martin NL, Caveney S, Ambrose CS, Martin N, Spahn JD, Hoyte FCL. Effect of Tezepelumab on Sino-Nasal Outcome Test (SNOT)-22 Domain and Symptom-Specific Scores in Patients with Severe, Uncontrolled Asthma and a History of Chronic Rhinosinusitis with Nasal Polyps. Adv Ther. 2025 Jan;42(1):510-522. doi: 10.1007/s12325-024-03006-5. Epub 2024 Nov 8.

  • Wechsler ME, Brusselle G, Virchow JC, Bourdin A, Kostikas K, Llanos JP, Roseti SL, Ambrose CS, Hunter G, Jackson DJ, Castro M, Lugogo N, Pavord ID, Martin N, Brightling CE. Clinical response and on-treatment clinical remission with tezepelumab in a broad population of patients with severe, uncontrolled asthma: results over 2 years from the NAVIGATOR and DESTINATION studies. Eur Respir J. 2024 Dec 5;64(6):2400316. doi: 10.1183/13993003.00316-2024. Print 2024 Dec.

  • Carr TF, Moore WC, Kraft M, Brusselle G, Castro M, Chupp GL, Wechsler ME, Hunter G, Lindsley AW, Llanos JP, Burke LK, Chandarana S, Ambrose CS. Efficacy of Tezepelumab in Patients with Severe, Uncontrolled Asthma Across Multiple Clinically Relevant Subgroups in the NAVIGATOR Study. Adv Ther. 2024 Jul;41(7):2978-2990. doi: 10.1007/s12325-024-02889-8. Epub 2024 May 27.

  • Corren J, Menzies-Gow A, Bimmel J, McGuinness A, Almqvist G, Bowen K, Griffiths JM, Ponnarambil S, Bourdin A, Israel E, Colice G, Brightling CE, Wechsler ME; PATHWAY and NAVIGATOR study investigators. Tezepelumab for the treatment of severe asthma: a plain language summary of the PATHWAY and NAVIGATOR studies. Immunotherapy. 2023 Nov;15(16):1327-1340. doi: 10.2217/imt-2023-0109. Epub 2023 Sep 29.

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Related Links

MeSH Terms

Conditions

Asthma

Interventions

tezepelumab

Condition Hierarchy (Ancestors)

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

Results Point of Contact

Title
Global Clinical Head
Organization
AstraZeneca

Study Officials

  • Andrew Menzies-Gow, MD

    Royal Brompton Hospital, United Kingdom

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR
Masking Details
Double-Blind
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Subjects will be randomized in a 1:1 ratio to either tezepelumab or matching placebo both administered subcutaneously.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 9, 2017

First Posted

November 20, 2017

Study Start

November 23, 2017

Primary Completion

September 8, 2020

Study Completion

November 12, 2020

Last Updated

November 26, 2021

Results First Posted

November 26, 2021

Record last verified: 2021-10

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. All request 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 shared.

Shared Documents
STUDY PROTOCOL, SAP
Time Frame
AstraZeneca will meet or exceed data availability as per the commitments made to the EFPIA Pharma Data Sharing Principles. For details of our timelines, please rerefer 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 de-identified individual patient-level data in an approved sponsored tool . Signed Data Sharing Agreement (non-negotiable contract for data accessors) must be in place before accessing requested information. Additionally, all users will need to accept the terms and conditions of the SAS MSE to gain access. For additional details, please review the Disclosure Statements at https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure.
More information

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