NCT04718389

Brief Summary

This study will assess whether switching participants who have benefitted from mepolizumab or benralizumab to GSK3511294 (Depemokimab) is non-inferior to maintaining current treatment on the annualized rate of clinically significant exacerbations in participants with severe asthma with an eosinophilic phenotype. Throughout the study, all participants will continue their non-biologic Baseline standard of care (SoC) asthma treatment.

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
1,719

participants targeted

Target at P75+ for phase_3 asthma

Timeline
Completed

Started Jan 2021

Longer than P75 for phase_3 asthma

Geographic Reach
20 countries

395 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

January 18, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

January 22, 2021

Completed
4 days until next milestone

Study Start

First participant enrolled

January 26, 2021

Completed
4.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 14, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 14, 2025

Completed
Last Updated

October 15, 2025

Status Verified

October 1, 2025

Enrollment Period

4.6 years

First QC Date

January 18, 2021

Last Update Submit

October 14, 2025

Conditions

Keywords

AsthmaGSK3511294 (Depemokimab)MepolizumabBenralizumabInterventionalEosinophilic phenotype

Outcome Measures

Primary Outcomes (1)

  • Annualized rate of clinically significant exacerbations over 52 weeks

    Clinically significant exacerbations of asthma are defined by worsening of asthma which requires use of systemic corticosteroids and/or hospitalization and/or Emergency Department (ED) visit. Annualized rate of exacerbations will be calculated as number of exacerbations experienced by the participant divided by the length of time the participant is measured on.

    Up to Week 52

Secondary Outcomes (3)

  • Weighted mean change from Baseline in St. George's Respiratory Questionnaire (SGRQ) total score

    Baseline (Day 1) and up to Week 52

  • Weighted mean change from Baseline in Asthma Control Questionnaire-5 (ACQ-5) score

    Baseline (Day 1) and up to Week 52

  • Weighted mean change from Baseline in pre-bronchodilator forced expiratory volume in one second (FEV1)

    Baseline (Day 1) and up to Week 52

Study Arms (2)

Participants receiving GSK3511294 (Depemokimab) plus placebo matching prior anti-IL-5/5R treatment

EXPERIMENTAL

Participants will receive GSK3511294 (Depemokimab) plus placebo treatment matching the active comparator (participant's anti-Interleukin-5/ 5 receptor \[anti-IL-5/5R\] treatment prior to randomization): either placebo matching mepolizumab or placebo matching benralizumab. All participants will continue their non-biologic Baseline SoC asthma treatment throughout the study.

Biological: GSK3511294 (Depemokimab)Biological: PlaceboDrug: Standard of care (SoC)Device: Pre-filled Syringes (PFS)

Participants receiving prior anti-IL-5/5R treatment plus placebo matching GSK3511294 (Depemokimab)

ACTIVE COMPARATOR

Participants will receive active comparator (participant's anti-IL-5/5R treatment prior to randomization): either mepolizumab or benralizumab, plus placebo matching GSK3511294 (Depemokimab). All participants will continue their non-biologic Baseline SoC asthma treatment throughout the study.

Biological: MepolizumabBiological: BenralizumabBiological: PlaceboDrug: Standard of care (SoC)Device: Pre-filled Syringes (PFS)

Interventions

GSK3511294 (Depemokimab) will be provided in a single-use prefilled syringe (PFS).

Participants receiving GSK3511294 (Depemokimab) plus placebo matching prior anti-IL-5/5R treatment
MepolizumabBIOLOGICAL

Mepolizumab will be provided in a single-use PFS.

Participants receiving prior anti-IL-5/5R treatment plus placebo matching GSK3511294 (Depemokimab)
BenralizumabBIOLOGICAL

Benralizumab will be provided in a single-use PFS.

Participants receiving prior anti-IL-5/5R treatment plus placebo matching GSK3511294 (Depemokimab)
PlaceboBIOLOGICAL

Placebo will be a sterile liquid formulation.

Participants receiving GSK3511294 (Depemokimab) plus placebo matching prior anti-IL-5/5R treatmentParticipants receiving prior anti-IL-5/5R treatment plus placebo matching GSK3511294 (Depemokimab)

Non-biologic SoC will include inhaled corticosteroid (ICS) plus at least one other controller, long-acting beta-2-agonist (LABA), long-acting muscarinic antagonist (LAMA), with or without maintenance oral corticosteroids (OCS).

Participants receiving GSK3511294 (Depemokimab) plus placebo matching prior anti-IL-5/5R treatmentParticipants receiving prior anti-IL-5/5R treatment plus placebo matching GSK3511294 (Depemokimab)

PFS will include glass barrel with pre-staked needle and plunger.

Participants receiving GSK3511294 (Depemokimab) plus placebo matching prior anti-IL-5/5R treatmentParticipants receiving prior anti-IL-5/5R treatment plus placebo matching GSK3511294 (Depemokimab)

Eligibility Criteria

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

You may qualify if:

  • Adult and adolescent participants more than or equal to (\>=)12 years of age, at the time of signing the informed consent/assent.
  • Participants who have a documented physician diagnosis of asthma for \>=2 years that meets the National Heart, Lung, and Blood Institute guidelines (NHLBI) or Global Initiative for Asthma (GINA) guidelines.
  • Participants receiving either mepolizumab 100 milligrams (mg) or benralizumab 30 mg for \>=12 months prior to screening and have a documented benefit to therapy assessed by either:
  • (i) \>=50% reduction in exacerbation frequency since initiating treatment, or (ii) \>=50% reduction in maintenance OCS use since initiating treatment, or (iii) No exacerbations in the past 6 months whilst receiving anti-IL-5/5R therapy and an Asthma Control Questionnaire (ACQ)-5 score of less than or equal to (\<=)1.5 at screening.
  • Current treatment with at least one additional controller medication, besides ICS \[for example (e.g.), LABA, LAMA, leukotriene receptor antagonist (LTRA), or theophylline\].

You may not qualify if:

  • Participants with presence of a known pre-existing, clinically important lung condition other than asthma. This includes (but is not limited to) current infection, bronchiectasis, pulmonary fibrosis, bronchopulmonary aspergillosis, or diagnoses of emphysema or chronic bronchitis (chronic obstructive pulmonary disease other than asthma) or a history of lung cancer.
  • Participants with other conditions that could lead to elevated eosinophils such as hyper-eosinophilic syndromes including (but not limited to) Eosinophilic Granulomatosis with Polyangiitis (EGPA, formerly known as Churg-Strauss Syndrome) or Eosinophilic Esophagitis.
  • A current malignancy or previous history of cancer in remission for less than 12 months prior to screening (Participants that had localized carcinoma of the skin which was resected for cure will not be excluded).
  • Cirrhosis or current unstable liver or biliary disease per investigator assessment defined by the presence of ascites, encephalopathy, coagulopathy, hypoalbuminemia, esophageal or gastric varices, persistent jaundice.
  • Participants with current diagnosis of vasculitis. Participants with high clinical suspicion of vasculitis at screening will be evaluated and current vasculitis excluded prior to enrolment.
  • Participants who have received Omalizumab (Xolair), dupilumab (Dupixent) or reslizumab (Cinqair/Cinqaero) within 130 days prior to Visit 1.
  • Participants who have received any Monoclonal antibody (mAb) within 5 half-lives of Visit 1.
  • Corrected QT interval using Fridericia's formula (QTcF) \>=450 milliseconds (msec) or QTcF \>=480 msec for participants with Bundle Branch Block at screening Visit 1.
  • Current smokers or former smokers with a smoking history of \>=10 pack years (number of pack years equal to \[number of cigarettes per day/20\] times number of years smoked). A former smoker is defined as a participant who quit smoking at least 6 months prior to Visit 1.
  • Participants with allergy/intolerance to a mAb or biologic.
  • Evidence of a clinically significant abnormality in the 12-lead electrocardiogram (ECG) over-read conducted at Screening Visit 1, based on the evaluation of the investigator, or QTcF \>=450 msec or QTcF \>=480 msec for participants with Bundle Branch Block, at randomization Visit 2.
  • Participants with a clinically significant asthma exacerbation in the 7 days prior to randomization should have their randomization visit delayed until the investigator considers the participant's asthma to be stable. If the 8-week screening period has elapsed, then the participant should be considered a run-in failure.
  • Any changes in the dose or regimen of Baseline ICS and/or additional controller medication (except for treatment of an exacerbation) during the run-in period.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (397)

GSK Investigational Site

Birmingham, Alabama, 35209, United States

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GSK Investigational Site

Scottsboro, Alabama, 35768, United States

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GSK Investigational Site

Litchfield Park, Arizona, 85340, United States

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GSK Investigational Site

Phoenix, Arizona, 85054, United States

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GSK Investigational Site

Scottsdale, Arizona, 85251, United States

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GSK Investigational Site

Bakersfield, California, 93301, United States

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GSK Investigational Site

Encinitas, California, 92024, United States

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GSK Investigational Site

Huntington Beach, California, 92647, United States

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GSK Investigational Site

Los Angeles, California, 90048, United States

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GSK Investigational Site

Newport Beach, California, 92663, United States

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GSK Investigational Site

Oxnard, California, 93036, United States

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GSK Investigational Site

Rancho Cucamonga, California, 91730, United States

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GSK Investigational Site

Redondo Beach, California, 90277, United States

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GSK Investigational Site

Redwood City, California, 94063, United States

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GSK Investigational Site

Riverside, California, 91786, United States

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GSK Investigational Site

San Diego, California, 92123, United States

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GSK Investigational Site

San Diego, California, 92307, United States

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GSK Investigational Site

Valencia, California, 91324, United States

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GSK Investigational Site

Woodland, California, 95695, United States

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GSK Investigational Site

Aurora, Colorado, 80238, United States

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GSK Investigational Site

Colorado Springs, Colorado, 80907, United States

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GSK Investigational Site

Colorado Springs, Colorado, 80923, United States

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GSK Investigational Site

Denver, Colorado, 80209, United States

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GSK Investigational Site

Wheat Ridge, Colorado, 80033, United States

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GSK Investigational Site

New Haven, Connecticut, 06511, United States

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GSK Investigational Site

Aventura, Florida, 33180, United States

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GSK Investigational Site

Clearwater, Florida, 33765-2103, United States

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GSK Investigational Site

Fort Lauderdale, Florida, 33316, United States

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GSK Investigational Site

Gainesville, Florida, 32610, United States

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GSK Investigational Site

Hialeah, Florida, 33014, United States

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GSK Investigational Site

Hialeah, Florida, 33016, United States

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GSK Investigational Site

Jacksonville, Florida, 32209, United States

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GSK Investigational Site

Kissimmee, Florida, 34746, United States

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GSK Investigational Site

Loxahatchee Groves, Florida, 33470, United States

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GSK Investigational Site

Miami, Florida, 33125, United States

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GSK Investigational Site

Miami, Florida, 33126, United States

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GSK Investigational Site

Miami, Florida, 33144, United States

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GSK Investigational Site

Miami, Florida, 33166, United States

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GSK Investigational Site

Miami, Florida, 33172, United States

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GSK Investigational Site

Miami, Florida, 33186, United States

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GSK Investigational Site

Miami Lakes, Florida, 33014, United States

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GSK Investigational Site

Miami Lakes, Florida, 33125, United States

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GSK Investigational Site

North Palm Beach, Florida, 33408, United States

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GSK Investigational Site

Orlando, Florida, 32803, United States

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GSK Investigational Site

Orlando, Florida, 32806, United States

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GSK Investigational Site

Orlando, Florida, 32819, United States

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GSK Investigational Site

Sebring, Florida, 33870, United States

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GSK Investigational Site

Tallahassee, Florida, 32308, United States

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GSK Investigational Site

Calhoun, Georgia, 30701, United States

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GSK Investigational Site

Glenview, Illinois, 60077, United States

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Evansville, Indiana, 47715, United States

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GSK Investigational Site

Overland Park, Kansas, 66210, United States

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Lexington, Kentucky, 40509, United States

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Owensboro, Kentucky, 42301, United States

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GSK Investigational Site

Bangor, Maine, 04401, United States

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GSK Investigational Site

Baltimore, Maryland, 21162, United States

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GSK Investigational Site

Baltimore, Maryland, 21224, United States

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Chevy Chase, Maryland, 20815, United States

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Boston, Massachusetts, 02115, United States

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Burlington, Massachusetts, 01805, United States

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GSK Investigational Site

New Bedford, Massachusetts, 02740, United States

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GSK Investigational Site

North Dartmouth, Massachusetts, 02747, United States

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Ann Arbor, Michigan, 48109, United States

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Flint, Michigan, 48507, United States

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Warren, Michigan, 48088, United States

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GSK Investigational Site

Minneapolis, Minnesota, 55454, United States

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Gulfport, Mississippi, 36608, United States

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Jackson, Mississippi, 39216, United States

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Chesterfield, Missouri, 63017, United States

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Saint Charles, Missouri, 63301, United States

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St Louis, Missouri, 63110, United States

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Lincoln, Nebraska, 68505, United States

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Omaha, Nebraska, 68198-5990, United States

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GSK Investigational Site

Brick, New Jersey, 08724, United States

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Northfield, New Jersey, 08225, United States

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Riverdale, New Jersey, 07457, United States

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GSK Investigational Site

Toms River, New Jersey, 08755, United States

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GSK Investigational Site

Brooklyn, New York, 11215, United States

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GSK Investigational Site

Corning, New York, 14845, United States

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Great Neck, New York, 11040, United States

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GSK Investigational Site

New York, New York, 60301, United States

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GSK Investigational Site

The Bronx, New York, 10459-2417, United States

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GSK Investigational Site

The Bronx, New York, 10467, United States

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Asheville, North Carolina, 28803, United States

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Huntersville, North Carolina, 28078, United States

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Wilmington, North Carolina, 28401, United States

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Winston-Salem, North Carolina, 27103, United States

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Winston-Salem, North Carolina, 27157, United States

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Cincinnati, Ohio, 45229, United States

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Cincinnati, Ohio, 45231, United States

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Corvallis, Oregon, 97330, United States

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Altoona, Pennsylvania, 15801, United States

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GSK Investigational Site

Altoona, Pennsylvania, 16601, United States

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Hershey, Pennsylvania, 17033, United States

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Philadelphia, Pennsylvania, 19140, United States

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GSK Investigational Site

Pittsburgh, Pennsylvania, 15241, United States

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GSK Investigational Site

Wyomissing, Pennsylvania, 19610, United States

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Warwick, Rhode Island, 02886, United States

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Rock Hill, South Carolina, 29732, United States

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Spartanburg, South Carolina, 29303, United States

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Hendersonville, Tennessee, 37075, United States

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Knoxville, Tennessee, 37909, United States

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GSK Investigational Site

Amarillo, Texas, 79106, United States

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GSK Investigational Site

Amarillo, Texas, 79124, United States

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GSK Investigational Site

Dallas, Texas, 75225, United States

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GSK Investigational Site

Dallas, Texas, 75235, United States

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GSK Investigational Site

Dallas, Texas, 75246, United States

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GSK Investigational Site

Houston, Texas, 77030, United States

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GSK Investigational Site

Houston, Texas, 77429, United States

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GSK Investigational Site

Kerrville, Texas, 78028, United States

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GSK Investigational Site

San Antonio, Texas, 78207, United States

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GSK Investigational Site

San Antonio, Texas, 78229, United States

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GSK Investigational Site

San Antonio, Texas, 78258, United States

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Murray, Utah, 84107, United States

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Richmond, Virginia, 23298, United States

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Williamsburg, Virginia, 23188, United States

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GSK Investigational Site

Bellingham, Washington, 98225, United States

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Seattle, Washington, 98115, United States

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GSK Investigational Site

Greenfield, Wisconsin, 53228, United States

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Macquarie Park, New South Wales, 2109, Australia

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GSK Investigational Site

Sydney, New South Wales, 2010, Australia

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GSK Investigational Site

Westmead, New South Wales, 2145, Australia

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GSK Investigational Site

Cairns, Queensland, 4870, Australia

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GSK Investigational Site

South Brisbane, Queensland, 4101, Australia

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GSK Investigational Site

Adelaide, South Australia, 5000, Australia

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GSK Investigational Site

Bedford Park, South Australia, 5042, Australia

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GSK Investigational Site

North Adelaide, South Australia, 5006, Australia

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GSK Investigational Site

Toorak Gardens, South Australia, 5065, Australia

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GSK Investigational Site

Woodville, South Australia, 5011, Australia

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GSK Investigational Site

Box Hill, Victoria, 3128, Australia

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GSK Investigational Site

Clayton, Victoria, 3168, Australia

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GSK Investigational Site

Fitzroy, Victoria, 3065, Australia

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GSK Investigational Site

Frankston, Victoria, 3199, Australia

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GSK Investigational Site

Melbourne, Victoria, 3181, Australia

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GSK Investigational Site

Nedlands, Western Australia, 6009, Australia

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GSK Investigational Site

Feldbach, 8330, Austria

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GSK Investigational Site

Vienna, 1130, Austria

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GSK Investigational Site

Calgary, Alberta, T2N 4Z6, Canada

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GSK Investigational Site

Edmonton, Alberta, T5J 3S9, Canada

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Moncton, New Brunswick, E1C 5K4, Canada

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Ajax, Ontario, L1S 2J5, Canada

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Ottawa, Ontario, K1H 1E4, Canada

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Toronto, Ontario, M5G 1E2, Canada

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Toronto, Ontario, M5T 3A9, Canada

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GSK Investigational Site

Windsor, Ontario, N8X 1T3, Canada

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GSK Investigational Site

Greenfield Park, Quebec, J4V 2H1, Canada

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Québec, Quebec, G1V 4G5, Canada

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Québec, Quebec, G1V 4W2, Canada

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GSK Investigational Site

Trois-Rivières, Quebec, G8T 7A1, Canada

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GSK Investigational Site

Tampere, 33520, Finland

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GSK Investigational Site

Turku, 20521, Finland

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GSK Investigational Site

Amiens, 80000, France

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GSK Investigational Site

Annecy, 74011, France

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GSK Investigational Site

Antony, 92160, France

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GSK Investigational Site

Besançon, 25030, France

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GSK Investigational Site

Brest, 29609, France

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GSK Investigational Site

Caen, 14033, France

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GSK Investigational Site

Cannes, 06414, France

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GSK Investigational Site

Cholet, 49300, France

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GSK Investigational Site

Dijon, 21079, France

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GSK Investigational Site

La Tronche, 38700, France

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GSK Investigational Site

Le Mans, 72037, France

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GSK Investigational Site

Lille, 59037, France

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GSK Investigational Site

Lyon, 69317, France

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GSK Investigational Site

Marseille, 13003., France

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GSK Investigational Site

Marseille, 13015, France

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GSK Investigational Site

Montfermeil, 93370, France

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GSK Investigational Site

Montivilliers, 76290, France

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GSK Investigational Site

Montpellier, 34295, France

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GSK Investigational Site

Nice, 06001, France

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GSK Investigational Site

Paris, 75014, France

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GSK Investigational Site

Paris, 75015, France

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GSK Investigational Site

Paris, 75877, France

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GSK Investigational Site

Pontoise, 95303, France

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GSK Investigational Site

Rouen, 76031, France

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GSK Investigational Site

Saint-Herblain, 44093, France

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GSK Investigational Site

Strasbourg, 67091, France

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GSK Investigational Site

Suresnes, 92150, France

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GSK Investigational Site

Toulouse, 31059, France

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GSK Investigational Site

Tours, 37044, France

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GSK Investigational Site

Aschaffenburg, 63739, Germany

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GSK Investigational Site

Bendorf, 56170, Germany

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GSK Investigational Site

Berlin, 10969, Germany

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GSK Investigational Site

Berlin, 12159, Germany

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GSK Investigational Site

Berlin, 12203, Germany

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GSK Investigational Site

Bonn, 53119, Germany

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GSK Investigational Site

Bonn, 53127, Germany

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GSK Investigational Site

Darmstadt, 64283, Germany

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GSK Investigational Site

Frankfurt, 60389, Germany

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GSK Investigational Site

Frankfurt, 60596, Germany

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GSK Investigational Site

Fürstenwalde, 15517, Germany

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GSK Investigational Site

Geesthacht, 21502, Germany

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GSK Investigational Site

Halle, 06108, Germany

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GSK Investigational Site

Halle, 06120, Germany

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Hamburg, 20354, Germany

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GSK Investigational Site

Hanover, 30625, Germany

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Landsberg, 86899, Germany

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Leipzig, 04207, Germany

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GSK Investigational Site

Leipzig, 04275, Germany

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GSK Investigational Site

Leipzig, 04347, Germany

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GSK Investigational Site

Lübeck, 23552, Germany

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GSK Investigational Site

Lübeck, 23558, Germany

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Magdeburg, 39120, Germany

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GSK Investigational Site

Mainz, 55128, Germany

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München, 81241, Germany

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Neu-Isenburg, 63263, Germany

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Rheine, 48431, Germany

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Schleswig, 24837, Germany

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GSK Investigational Site

Cork, T12 DFK4, Ireland

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Dublin, D04 T6F4, Ireland

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Dublin, D08 NHY1, Ireland

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GSK Investigational Site

Beersheba, 8410101, 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, 44281, Israel

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Petah Tikva, 49100, Israel

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Ramat Gan, 52621, Israel

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Tel Aviv, 64239, Israel

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Zrifin, 70300, Israel

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Bari, 70124, Italy

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Bergamo, 24127, Italy

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Bologna, 40138, Italy

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Brescia, 25123, Italy

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Catania, 95123, Italy

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Ferrara, 44124, Italy

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Florence, 50134, Italy

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Genova, 16132, Italy

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Mantova, 46100, Italy

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Milan, 20122, Italy

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Milan, 20123, Italy

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Milan, 20132, Italy

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Milan, 20162, Italy

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Modena, 41124, Italy

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Monserrato CA, 09042, Italy

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Napoli, 80131, Italy

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Padua, 35128, Italy

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Palermo, 90127, Italy

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Pavia, 27100, Italy

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Perugia, 06156, Italy

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Pisa, 56100, Italy

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Reggio Emilia, 42100, Italy

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Roma, 168, Italy

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Salerno, 84131, Italy

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Sassari, 7100, Italy

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Siena, 53100, Italy

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Torino, 10128, Italy

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Torrette AN, 60020, Italy

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Treviso, 31100, Italy

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GSK Investigational Site

Trieste, 34139, Italy

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Verona, 37134, Italy

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Shibuya-Ku, Tokyo, 150-8935, Japan

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Aichi, 454-8509, Japan

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Aichi, 470-1192, Japan

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GSK Investigational Site

Aichi, 489-8642, Japan

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GSK Investigational Site

Akita, 010-8543, Japan

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GSK Investigational Site

Ehime, 790-0024, Japan

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GSK Investigational Site

Fukuoka, 802-0052, Japan

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GSK Investigational Site

Fukuoka, 805-8508, Japan

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GSK Investigational Site

Fukuoka, 806-8501, Japan

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GSK Investigational Site

Fukuoka, 811-1394, Japan

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GSK Investigational Site

Fukuoka, 813-0017, Japan

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GSK Investigational Site

Fukuoka, 830-0011, Japan

Location

GSK Investigational Site

Fukushima, 960-1295, Japan

Location

GSK Investigational Site

Gifu, 509-6134, Japan

Location

GSK Investigational Site

Hiroshima, 734-8530, Japan

Location

GSK Investigational Site

Hiroshima, 735-8585, Japan

Location

GSK Investigational Site

Hiroshima, 737-0023, Japan

Location

GSK Investigational Site

Hokkaido, 064-0804, Japan

Location

GSK Investigational Site

Hyōgo, 650-0047, Japan

Location

GSK Investigational Site

Hyōgo, 653-0013, Japan

Location

GSK Investigational Site

Ibaraki, 302-0022, Japan

Location

GSK Investigational Site

Ibaraki, 319-1113, Japan

Location

GSK Investigational Site

Ishikawa, 920-0293, Japan

Location

GSK Investigational Site

Kagawa, 762-8550, Japan

Location

GSK Investigational Site

Kagoshima, 890-8520, Japan

Location

GSK Investigational Site

Kanagawa, 231-8682, Japan

Location

GSK Investigational Site

Kanagawa, 232-0024, Japan

Location

GSK Investigational Site

Kanagawa, 236-0004, Japan

Location

GSK Investigational Site

Kanagawa, 236-0051, Japan

Location

GSK Investigational Site

Kanagawa, 254-8502, Japan

Location

GSK Investigational Site

Mie, 510-8561, Japan

Location

GSK Investigational Site

Mie, 511-0061, Japan

Location

GSK Investigational Site

Mie, 515-8544, Japan

Location

GSK Investigational Site

Miyagi, 981-8563, Japan

Location

GSK Investigational Site

Nagano, 386-8610, Japan

Location

GSK Investigational Site

Niigata, 951-8520, Japan

Location

GSK Investigational Site

Numakunai, 020-8505, Japan

Location

GSK Investigational Site

Okayama, 701-0304, Japan

Location

GSK Investigational Site

Okayama, 702-8055, Japan

Location

GSK Investigational Site

Osaka, 530-0012, Japan

Location

GSK Investigational Site

Osaka, 543-8555, Japan

Location

GSK Investigational Site

Osaka, 560-8552, Japan

Location

GSK Investigational Site

Osaka, 569-1096, Japan

Location

GSK Investigational Site

Osaka, 569-1192, Japan

Location

GSK Investigational Site

Osaka, 569-8686, Japan

Location

GSK Investigational Site

Osaka, 572-8551, Japan

Location

GSK Investigational Site

Osaka, 593-8304, Japan

Location

GSK Investigational Site

Osaka, 596-8501, Japan

Location

GSK Investigational Site

Shimane, 693-8501, Japan

Location

GSK Investigational Site

Shizuoka, 420-8527, Japan

Location

GSK Investigational Site

Shizuoka, 430-8525, Japan

Location

GSK Investigational Site

Tokyo, 103-0027, Japan

Location

GSK Investigational Site

Tokyo, 105-8471, Japan

Location

GSK Investigational Site

Tokyo, 113-8431, Japan

Location

GSK Investigational Site

Tokyo, 113-8519, Japan

Location

GSK Investigational Site

Tokyo, 136-0075, Japan

Location

GSK Investigational Site

Tokyo, 141-8625, Japan

Location

GSK Investigational Site

Tokyo, 142-8666, Japan

Location

GSK Investigational Site

Tokyo, 160-8582, Japan

Location

GSK Investigational Site

Tokyo, 162-8655, Japan

Location

GSK Investigational Site

Tokyo, 173-8606, Japan

Location

GSK Investigational Site

Tokyo, 187-8510, Japan

Location

GSK Investigational Site

Tokyo, 190-0014, Japan

Location

GSK Investigational Site

Tokyo, 204-8585, Japan

Location

GSK Investigational Site

Toyama, 930-8550, Japan

Location

GSK Investigational Site

Wakayama, 640-8558, Japan

Location

GSK Investigational Site

Arnhem, 6815 AD, Netherlands

Location

GSK Investigational Site

Breda, 4818 CK, Netherlands

Location

GSK Investigational Site

Deventer, 7416 SE, Netherlands

Location

GSK Investigational Site

Eindhoven, 5623 EJ, Netherlands

Location

GSK Investigational Site

Enschede, 7513 ER, Netherlands

Location

GSK Investigational Site

Harderwijk, 3844 DG, Netherlands

Location

GSK Investigational Site

Leeuwarden, 8934 AD, Netherlands

Location

GSK Investigational Site

Nijmegen, 6532 SZ, Netherlands

Location

GSK Investigational Site

Rotterdam, 3045 PM, Netherlands

Location

GSK Investigational Site

Zwolle, 8025 AB, Netherlands

Location

GSK Investigational Site

Bergen, 5021, Norway

Location

GSK Investigational Site

Lrenskog, 1478, Norway

Location

GSK Investigational Site

Coimbra, 3041-801, Portugal

Location

GSK Investigational Site

Guarda, 6300-035, Portugal

Location

GSK Investigational Site

Lisbon, 1649-035, Portugal

Location

GSK Investigational Site

Matosinhos Municipality, 4464-509, Portugal

Location

GSK Investigational Site

Guaynabo, 00968, Puerto Rico

Location

GSK Investigational Site

Golnik, 4204, Slovenia

Location

GSK Investigational Site

Alcorcón, 28922, Spain

Location

GSK Investigational Site

Almería, 04009, Spain

Location

GSK Investigational Site

Badalona, 08916, Spain

Location

GSK Investigational Site

Barcelona, 08003, Spain

Location

GSK Investigational Site

Barcelona, 08017, Spain

Location

GSK Investigational Site

Barcelona, 08035, Spain

Location

GSK Investigational Site

Barcelona, 08036, Spain

Location

GSK Investigational Site

Barcelona, 08950, Spain

Location

GSK Investigational Site

Barcelona, 8025, Spain

Location

GSK Investigational Site

Benalmádena, 29631, Spain

Location

GSK Investigational Site

Bilbao, 48013, Spain

Location

GSK Investigational Site

Granada, 18014, Spain

Location

GSK Investigational Site

Jerez de la Frontera, 11407, Spain

Location

GSK Investigational Site

La Laguna Santa Cruz, 38320, Spain

Location

GSK Investigational Site

Madrid, 28031, Spain

Location

GSK Investigational Site

Madrid, 28040, Spain

Location

GSK Investigational Site

Madrid, 28041, Spain

Location

GSK Investigational Site

Madrid, 28046, Spain

Location

GSK Investigational Site

Málaga, 29010, Spain

Location

GSK Investigational Site

MErida Badajoz, 06800, Spain

Location

GSK Investigational Site

Pamplona, 31008, Spain

Location

GSK Investigational Site

Pozuelo de AlarcOn Madr, 28223, Spain

Location

GSK Investigational Site

Salamanca, 37007, Spain

Location

GSK Investigational Site

Santander, 39008, Spain

Location

GSK Investigational Site

Santiago de Compostela, 15706, Spain

Location

GSK Investigational Site

Valencia, 46015, Spain

Location

GSK Investigational Site

Valencia, 46017, Spain

Location

GSK Investigational Site

Via-Real CastellOn, 12540, Spain

Location

GSK Investigational Site

Vitoria-Gasteiz, 01009, Spain

Location

GSK Investigational Site

Zaragoza, 50009, Spain

Location

GSK Investigational Site

Linköping, SE-58758, Sweden

Location

GSK Investigational Site

Lund, SE-221 85, Sweden

Location

GSK Investigational Site

Östersund, SE-831 83, Sweden

Location

GSK Investigational Site

Stockholm, SE-141 86, Sweden

Location

GSK Investigational Site

Uppsala, SE-751 85, Sweden

Location

GSK Investigational Site

Aarau, 5001, Switzerland

Location

GSK Investigational Site

Basel, 4031, Switzerland

Location

GSK Investigational Site

Liestal, 4410, Switzerland

Location

GSK Investigational Site

Sankt Gallen, 9007, Switzerland

Location

GSK Investigational Site

Banchiau Taipei, 220, Taiwan

Location

GSK Investigational Site

Changhua, 500, Taiwan

Location

GSK Investigational Site

Linkou - Taoyuan Hsien, 333, Taiwan

Location

GSK Investigational Site

Taichung, 404, Taiwan

Location

GSK Investigational Site

Taichung, 40705, Taiwan

Location

GSK Investigational Site

Taipei, 100, Taiwan

Location

GSK Investigational Site

Belfast, BT9 7AB, United Kingdom

Location

GSK Investigational Site

Birmingham, B9 5SS, United Kingdom

Location

GSK Investigational Site

Bradford, BD9 6RJ, United Kingdom

Location

GSK Investigational Site

Bristol Avon, BS10 5NB, United Kingdom

Location

GSK Investigational Site

Cottingham, HU16 5JQ, United Kingdom

Location

GSK Investigational Site

Exeter, EX2 5DW, United Kingdom

Location

GSK Investigational Site

Glasgow, G31 2ER, United Kingdom

Location

GSK Investigational Site

Glasgow, G51 4TF, United Kingdom

Location

GSK Investigational Site

Liverpool, L7 8XP, United Kingdom

Location

GSK Investigational Site

London, EC1A 7BE, United Kingdom

Location

GSK Investigational Site

Newcastle upon Tyne, NE7 7DN, United Kingdom

Location

GSK Investigational Site

Nottingham, NG5 1PB, United Kingdom

Location

GSK Investigational Site

Oxford, OX3 9DU, United Kingdom

Location

GSK Investigational Site

Portsmouth, PO6 3LY, United Kingdom

Location

GSK Investigational Site

Preston, PR2 9HT, United Kingdom

Location

GSK Investigational Site

Wakefield, WF1 4DG, United Kingdom

Location

GSK Investigational Site

Wishaw, ML6 0JS, United Kingdom

Location

MeSH Terms

Conditions

Asthma

Interventions

mepolizumabbenralizumabStandard of Care

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

Quality Indicators, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and Evaluation

Study Officials

  • GSK Clinical Trials

    GlaxoSmithKline

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
This is a double-blind study.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This is randomized, double-blind, parallel group, multi-center and non-inferiority study.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 18, 2021

First Posted

January 22, 2021

Study Start

January 26, 2021

Primary Completion

September 14, 2025

Study Completion

September 14, 2025

Last Updated

October 15, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will share

IPD for this study will be made available via the Clinical Study Data Request site.

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR
Time Frame
IPD will be made available within 6 months of publishing the results of the primary endpoints, key secondary endpoints and safety data of the study.
Access Criteria
Access is provided after a research proposal is submitted and has received approval from the Independent Review Panel and after a Data Sharing Agreement is in place. Access is provided for an initial period of 12 months but an extension can be granted, when justified, for up to another 12 months.
More information

Locations