A Dose Finding Study With an Anti-TSLP Antibody (GSK5784283) in Adults Aged 18 to 75 Years of Age With Uncontrolled Asthma

May 20, 2026 updated by: GlaxoSmithKline

A Multicentre, Randomized, Double-Blind, Placebo Controlled, Dose Finding, Parallel Group, Phase 2 Study of an Anti-TSLP Antibody (GSK5784283) in Adults Aged 18 to 75 Years of Age With Uncontrolled Asthma

This study is trying to find the right dose of a long-lasting medicine called GSK5784283 for people with asthma that remains uncontrolled even though they are using regular asthma treatments. GSK5784283 blocks the action of an inflammatory protein called TSLP that may be contributing to your asthma. The study will be conducted in two parts - Part A (dose finding phase) and Part B (extended dosing phase). Part A will assess the lung function, asthma control, participant safety and certain markers of asthma inflammation in the air you breath out and in your blood. Part B will assess the safety and long-term effects of the repeated or single doses of GSK5784283.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

307

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Blagoevgrad, Bulgaria, 2700
        • GSK Investigational Site
      • Gorna Oryahovitsa, Bulgaria, 5100
        • GSK Investigational Site
      • Lovech, Bulgaria, 5500
        • GSK Investigational Site
      • Pazardzhik, Bulgaria, 4400
        • GSK Investigational Site
      • Plovdiv, Bulgaria, 4002
        • GSK Investigational Site
      • Rousse, Bulgaria, 7000
        • GSK Investigational Site
      • Rousse, Bulgaria, 7002
        • GSK Investigational Site
      • Sofia, Bulgaria, 1431
        • GSK Investigational Site
      • Sofia, Bulgaria, 1233
        • GSK Investigational Site
      • Sofia, Bulgaria, 1000
        • GSK Investigational Site
      • Sofia, Bulgaria, 1142
        • GSK Investigational Site
      • Sofia, Bulgaria, 1680
        • GSK Investigational Site
      • Stara Zagora, Bulgaria
        • GSK Investigational Site
      • Varna, Bulgaria, 9000
        • GSK Investigational Site
      • Vratsa, Bulgaria, 3000
        • GSK Investigational Site
    • British Columbia
      • Kelowna, British Columbia, Canada, V1Y 4N7
        • GSK Investigational Site
    • Ontario
      • Ajax, Ontario, Canada, L1S 2J5
        • GSK Investigational Site
      • London, Ontario, Canada, N6A 4V2
        • GSK Investigational Site
      • Toronto, Ontario, Canada, M5G 1E2
        • GSK Investigational Site
      • Windsor, Ontario, Canada, N8X 1T3
        • GSK Investigational Site
    • Quebec
      • Trois-Rivières, Quebec, Canada, G8T 7A1
        • GSK Investigational Site
      • Brandýs nad Labem, Czechia, 25001
        • GSK Investigational Site
      • Mladá Boleslav, Czechia, 293 01
        • GSK Investigational Site
      • Teplice, Czechia, 415 01
        • GSK Investigational Site
      • Bendorf, Germany, 56170
        • GSK Investigational Site
      • Berlin, Germany, 12203
        • GSK Investigational Site
      • Berlin, Germany, 10961
        • GSK Investigational Site
      • Darmstadt, Germany, 64283
        • GSK Investigational Site
      • Frankfurt, Germany, 60596
        • GSK Investigational Site
      • Fürstenwalde, Germany, 15517
        • GSK Investigational Site
      • Leipzig, Germany, 04347
        • GSK Investigational Site
      • Magdeburg, Germany, 39120
        • GSK Investigational Site
      • Mainz, Germany, 55128
        • GSK Investigational Site
      • München, Germany, 81241
        • GSK Investigational Site
      • Neu-Isenburg, Germany, 63263
        • GSK Investigational Site
      • Schleswig, Germany, 24837
        • GSK Investigational Site
      • Chiba, Japan, 275-8580
        • GSK Investigational Site
      • Fukui, Japan, 910-8526
        • GSK Investigational Site
      • Fukuoka, Japan, 811-1394
        • GSK Investigational Site
      • Fukuoka, Japan, 806-8501
        • GSK Investigational Site
      • Fukushima, Japan, 960-1295
        • GSK Investigational Site
      • Gifu, Japan, 509-6134
        • GSK Investigational Site
      • Hiroshima, Japan, 734-8530
        • GSK Investigational Site
      • Hokkaido, Japan, 064-0804
        • GSK Investigational Site
      • Hyōgo, Japan, 653-0013
        • GSK Investigational Site
      • Kagawa, Japan, 762-0043
        • GSK Investigational Site
      • Kanagawa, Japan, 236-0051
        • GSK Investigational Site
      • Mie, Japan, 515-8544
        • GSK Investigational Site
      • Nagasaki, Japan, 852-8501
        • GSK Investigational Site
      • Okayama, Japan, 702-8055
        • GSK Investigational Site
      • Osaka, Japan, 596-8501
        • GSK Investigational Site
      • Shizuoka, Japan, 420-8527
        • GSK Investigational Site
      • Tokyo, Japan, 162-8655
        • GSK Investigational Site
      • Tokyo, Japan, 141-8625
        • GSK Investigational Site
      • Tokyo, Japan, 204-8585
        • GSK Investigational Site
      • Yokohama, Japan, 232-0024
        • GSK Investigational Site
      • Bacau, Romania, 600252
        • GSK Investigational Site
      • Brasov, Romania, 500366
        • GSK Investigational Site
      • Brasov, Romania, 500283
        • GSK Investigational Site
      • Bucharest, Romania, 050159
        • GSK Investigational Site
      • Cluj-Napoca, Romania, 400139
        • GSK Investigational Site
      • Craiova Dolj, Romania, 200515
        • GSK Investigational Site
      • Timișoara, Romania, 300310
        • GSK Investigational Site
      • Alcorcon Madrid, Spain, 28922
        • GSK Investigational Site
      • Barcelona, Spain, 08035
        • GSK Investigational Site
      • Barcelona, Spain
        • GSK Investigational Site
      • Benalmádena, Spain, 29631
        • GSK Investigational Site
      • Jerez de la Frontera, Spain, 11407
        • GSK Investigational Site
      • Madrid, Spain, 28007
        • GSK Investigational Site
      • Madrid, Spain, 28040
        • GSK Investigational Site
      • Madrid, Spain, 28031
        • GSK Investigational Site
      • Madrid, Spain, 28003
        • GSK Investigational Site
      • Madrid, Spain, 28223
        • GSK Investigational Site
      • Málaga, Spain, 29010
        • GSK Investigational Site
      • Santander, Spain, 39008
        • GSK Investigational Site
      • Seville, Spain, 41012
        • GSK Investigational Site
      • Valencia, Spain, 46017
        • GSK Investigational Site
      • Valencia, Spain, 46015
        • GSK Investigational Site
      • Zaragoza, Spain, 50009
        • GSK Investigational Site
      • Bradford, United Kingdom, BD9 6RJ
        • GSK Investigational Site
      • London, United Kingdom, SE1 9RT
        • GSK Investigational Site
      • London, United Kingdom, EC1M 6BQ
        • GSK Investigational Site
      • Newcastle upon Tyne, United Kingdom, NE1 4LP
        • GSK Investigational Site
    • Arkansas
      • Little Rock, Arkansas, United States, 72205
        • GSK Investigational Site
    • California
      • Long Beach, California, United States, 90815
        • GSK Investigational Site
      • Los Angeles, California, United States, 90025
        • GSK Investigational Site
      • Redding, California, United States, 96001
        • GSK Investigational Site
      • Riverside, California, United States, 92506
        • GSK Investigational Site
      • Sacramento, California, United States, 95817
        • GSK Investigational Site
      • San Jose, California, United States, 95117
        • GSK Investigational Site
    • Colorado
      • Colorado Springs, Colorado, United States, 80923
        • GSK Investigational Site
      • Lakewood, Colorado, United States, 80228-1813
        • GSK Investigational Site
      • Wheat Ridge, Colorado, United States, 80033
        • GSK Investigational Site
    • Connecticut
      • New Haven, Connecticut, United States, 06511
        • GSK Investigational Site
    • Florida
      • Aventura, Florida, United States, 33180
        • GSK Investigational Site
      • Hialeah, Florida, United States, 33012
        • GSK Investigational Site
      • Lake Worth, Florida, United States, 33460
        • GSK Investigational Site
      • Leesburg, Florida, United States, 34748
        • GSK Investigational Site
      • Miami, Florida, United States, 33173
        • GSK Investigational Site
      • Miami, Florida, United States, 33144
        • GSK Investigational Site
      • Miami, Florida, United States, 33166
        • GSK Investigational Site
      • Miami, Florida, United States, 33172
        • GSK Investigational Site
      • Plantation, Florida, United States, 33324
        • GSK Investigational Site
      • Tampa, Florida, United States, 33607
        • GSK Investigational Site
    • Illinois
      • Skokie, Illinois, United States, 60077
        • GSK Investigational Site
    • Louisiana
      • Shreveport, Louisiana, United States, 71105
        • GSK Investigational Site
    • Michigan
      • Lathrup Village, Michigan, United States, 48076
        • GSK Investigational Site
      • Warren, Michigan, United States, 48088
        • GSK Investigational Site
    • Nebraska
      • Omaha, Nebraska, United States, 68198
        • GSK Investigational Site
    • New York
      • The Bronx, New York, United States, 10461
        • GSK Investigational Site
    • Ohio
      • Cincinnati, Ohio, United States, 45236
        • GSK Investigational Site
    • Pennsylvania
      • DuBois, Pennsylvania, United States, 15801
        • GSK Investigational Site
      • Philadelphia, Pennsylvania, United States, 19140
        • GSK Investigational Site
      • Pittsburgh, Pennsylvania, United States, 15241
        • GSK Investigational Site
      • Wyomissing, Pennsylvania, United States, 19610
        • GSK Investigational Site
    • Rhode Island
      • Warwick, Rhode Island, United States, 02886
        • GSK Investigational Site
    • South Carolina
      • Greenville, South Carolina, United States, 29607
        • GSK Investigational Site
      • Spartanburg, South Carolina, United States, 29303
        • GSK Investigational Site
    • Tennessee
      • Knoxville, Tennessee, United States, 37909
        • GSK Investigational Site
    • Texas
      • Boerne, Texas, United States, 78006
        • GSK Investigational Site
      • Cypress, Texas, United States, 77429
        • GSK Investigational Site
      • Dallas, Texas, United States, 75225
        • GSK Investigational Site
      • Houston, Texas, United States, 77058
        • GSK Investigational Site
      • Kerrville, Texas, United States, 78028
        • GSK Investigational Site
      • McKinney, Texas, United States, 75069
        • GSK Investigational Site
      • San Antonio, Texas, United States, 78229
        • GSK Investigational Site
      • San Antonio, Texas, United States, 78212
        • GSK Investigational Site
      • Sherman, Texas, United States, 75092
        • GSK Investigational Site
    • Utah
      • American Fork, Utah, United States, 84003
        • GSK Investigational Site
      • Pleasant View, Utah, United States, 84404
        • GSK Investigational Site
      • Salt Lake City, Utah, United States, 84117
        • GSK Investigational Site
      • South Ogden, Utah, United States, 84405
        • GSK Investigational Site
    • Washington
      • Bellingham, Washington, United States, 98225
        • GSK Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

Participants are eligible to be included in the study only if all of the following criteria apply:

  • Informed Consent: Capable of giving signed informed consent which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and this protocol. The participant must be willing and able to comply with trial and follow-up procedures.
  • Age: Participants must be 18 to 75 years of age inclusive, at the time of signing the informed consent.
  • Documented physician-diagnosed asthma for >= 2 years that meets the National Heart, Lung, and Blood Institute guidelines
  • Evidence of variable airflow obstruction consistent with asthma.
  • Documented history of asthma exacerbation within 12 months prior to Visit 1.
  • An asthma exacerbation defined as a worsening of asthma symptoms.
  • A well- documented requirement for regular treatment with medium or high-dose ICS for at least 6 months prior to screening.
  • At least one additional maintenance asthma controller medication is required according to standard practice of care (e.g., long-acting beta 2 agonist (LABA), leukotriene receptors antagonists (LTRA), theophylline, long-acting muscarinic antagonist (LAMA), chromones, etc.). Use of additional asthma controller medications must be documented for at least 3 months prior to Visit 1.
  • Weight >=40 kg.
  • Male or eligible Female.
  • Female participants: A female participant is eligible to participate if she is not pregnant, not breastfeeding, and at least one of the following conditions applies:

    • Not a woman of childbearing potential (WONCBP) OR
    • Is a WOCBP and using a contraceptive method that is highly effective, with a failure rate of <1%, 28 days prior to the 1st dose of the study drug and during the study intervention period and follow-up period. The investigator should evaluate potential for contraceptive method failure (e.g. non-compliance, recently initiated) in relationship to the first dose of study intervention.
    • A WOCBP must have a negative serum pregnancy test at screening and a highly sensitive pregnancy test ([urine or serum] as required by local regulations) within 24 hours before each dose of study intervention.
    • If a urine test cannot be confirmed as negative (e.g., an ambiguous result), a serum pregnancy test is required. In such cases, the participant must be excluded from participation if the serum pregnancy result is positive.
    • The investigator is responsible for review of medical history, menstrual history, and recent sexual activity to decrease the risk for inclusion of a woman with an early undetected pregnancy.
    • Contraceptive use by women should be consistent with location regulations regarding the methods of highly effective contraception for those participating in clinical trials.

Exclusion Criteria:

Participants are excluded from the study if any of the following criteria apply:

• Any concomitant respiratory disease that in the opinion of the investigator and/or medical monitor will interfere with the evaluation of the investigational product or interpretation of subject safety or study results (e.g., current upper or lower respiratory tract infection, chronic obstructive pulmonary disease, cystic fibrosis, pulmonary fibrosis, bronchiectasis, allergic bronchopulmonary aspergillosis, Churg-Strauss syndrome, primary ciliary dyskinesia).

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.

  • Active or latent tuberculosis:

    • Participants with a diagnosis or evidence of active or latent tuberculosis are excluded from the study.
    • Diagnosis of vocal cord dysfunction, dysfunctional breathing, or pseudo steroid resistant asthma.
  • Malignancy: A current malignancy or previous history of cancer in remission for less than 5 years prior to screening (Participants that had localized carcinoma of the skin which was resected for cure will not be excluded).
  • History of an unresolved clinically significant infection within 30 days prior to Visit 1.
  • A known immunodeficiency (e.g. human immunodeficiency virus - HIV), other than that explained by the use of corticosteroids taken as therapy for asthma.
  • Participants who have known, pre-existing, clinically significant cardiac, endocrine, autoimmune, rheumatologic, metabolic, neurological, renal, gastrointestinal, hepatic, hematological or any other system abnormalities that are uncontrolled with standard treatment including eosinophilic conditions such as hyper-eosinophilic syndrome (HES) and eosinophilic granulomatosis with polyangiitis (EGPA).
  • Any clinically relevant abnormal findings in physical examination, hematology, clinical chemistry, urinalysis, vital signs at Visit 2 which in the opinion of the investigator, may put the subject at risk because of his/her participation in the study, or may influence the results of the study, or the subject's ability to participate in the study.
  • Receipt of any marketed or investigational biologic agent within 4 months or 5 half-lives prior to Visit 1, whichever is longer and up until the end of study.
  • Receipt of any investigational non-biologic agent within 30 days or 5 half-lives prior to screening, whichever is longer and up until the end of study.
  • Experimental vaccines are not permitted within 30 days prior to randomization and up until the end of the study.
  • Use of immunosuppressive medication (e.g., methotrexate, troleandomycin, oral gold, cyclosporine, azathioprine, intramuscular long-acting depot corticosteroid, systemic (oral) corticosteroids) within 3 months prior to Visit 1 and up until the end of study.
  • Systemic corticosteroid burst including taper within 15 days prior to Visit 1 or during the screening/run-in period.
  • Subjects who have not responded to Tezepelumab treatment.
  • Receipt of live or live attenuated vaccine(s) within 30 days prior to randomization or plans to receive such vaccines up until the end of study.
  • A positive human immunodeficiency virus (HIV) test at screening or subject taking antiretroviral medications, as determined by medical history and/or subject's verbal report.
  • Positive test for hepatitis B virus (HBV) defined as either:

    1. positive for hepatitis B surface antigen (HBsAg) OR
    2. positive for HBV DNA
  • Positive Hepatitis C antibody test result.
  • Positive Hepatitis C RNA test result at screening or within 3 months prior to first dose of study intervention.
  • Current smokers (tobacco and marijuana) or former smokers with a smoking history >=10 pack years and subjects using vaping products, including electronic cigarettes.
  • History of chronic alcohol or drug abuse within 2 years.
  • History of severe allergic reaction, anaphylaxis or documented immune complex disease (Type III hypersensitivity reactions) to any biologic therapy.
  • History of sensitivity to any component of the investigational product formulation or a history of drug or other allergy that, in the opinion of the investigator or medical monitor contraindicates their participation.
  • Participants who have known evidence of lack of adherence to controller medications and/or ability to follow physician's recommendations.
  • Participants who meet the following based on results from sample taken at Visit 2:

    1. Alanine aminotransferase (ALT) >2x upper limit of normal (ULN)
    2. Total bilirubin >1.5x ULN (isolated bilirubin >1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin <35%)
    3. Current or chronic history of liver disease or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
  • QTcF >= 450 msec or QTcF >= 480 msec for patients with bundle branch block or an abnormal ECG finding that is considered to be clinically significant and would impact the participant's participation during the study, based on the evaluation of the investigator in the 12-Lead ECG central over-read from screening Visit 2.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Part A: Dose Finding - GSK5784283
GSK5784283 will be administered.
Other Names:
  • AIO-001, SHR-1905
Experimental: Part A: Dose Finding - Placebo
Placebo will be administered.
Experimental: Part B: Extended Dosing - GSK5784283
GSK5784283 will be administered.
Other Names:
  • AIO-001, SHR-1905
Experimental: Part B: Extended Dosing - Placebo
Placebo will be administered.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Part A: Change from baseline in the fraction of exhaled nitric oxide (FeNo)
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Part A: Change from baseline in blood eosinophil counts
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Part A: Change from baseline in the forced expiratory volume (FEV1) [pre-and post-bronchodilator
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Part A: Change from baseline in the forced vital capacity (FVC) [pre-and post-bronchodilator
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Part A: Change from baseline in the 5-item Asthma Control Questionnaire (ACQ-5)
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
The ACQ-5 is a five-item questionnaire, which has been developed as a measure of participants' asthma control. The five questions enquire about the frequency and/or severity of symptoms (nocturnal awakening on waking in the morning, activity limitation, and shortness of breath, wheeze) over the previous week. The response options for all these questions consist of a zero (no impairment/limitation) to six (total impairment/ limitation) scale.
Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Part A: Maximum Observed Plasma Concentration (Cmax) of GSK5784283
Time Frame: Up to 26 weeks
Up to 26 weeks
Part A: Time to Reach Cmax (Tmax) of GSK5784283
Time Frame: Up to 26 weeks
Up to 26 weeks
Part A: Area under the curve over the dosing interval (AUC0-tau) of GSK5784283
Time Frame: Up to 26 weeks
Up to 26 weeks
Part A & B: Number of participants with treatment emergent adverse events (TEAEs), serious adverse events (SAEs), and adverse events of special interest (AESIs)
Time Frame: Up to 52 weeks
Up to 52 weeks
Part A & B: Number of participants with clinically significant changes in hematology, clinical chemistry and urinalysis
Time Frame: Up to 52 weeks
Up to 52 weeks
Part A & B: Number of participants with clinically significant changes in vital signs, including blood pressure, body temperature, and pulse rate
Time Frame: Up to 52 weeks
Up to 52 weeks
Part A & B: Number of participants with clinically significant changes in Electrocardiogram (ECG)
Time Frame: Up to 52 weeks
Up to 52 weeks
Part A & Part B: Number of participants with treatment-emergent Anti-drug antibodies (ADA) to GSK5784283
Time Frame: Up to 52 weeks
Up to 52 weeks
Part A & Part B: Titers of ADA to GSK5784283
Time Frame: Up to 52 weeks
Up to 52 weeks
Part A: Number of participants with Neutralizing Antibody (NAb) to GSK5784283
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20 and 26 weeks
Part B: Change from baseline in the fraction of exhaled nitric oxide (FeNo)
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Part B: Change from baseline in blood eosinophil counts
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Part B: Ratio to change from baseline in FeNO and blood eosinophil counts
Time Frame: Baseline (Day 1) and 52 weeks
Baseline (Day 1) and 52 weeks
Part B: Change from baseline in the forced expiratory volume (FEV1) [pre-and post-bronchodilator
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Part B: Change from baseline in the forced vital capacity (FVC) [pre-and post-bronchodilator
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Part B: Change from baseline in the 5-item Asthma Control Questionnaire (ACQ-5)
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 34, 46, and 52
The ACQ-5 is a five-item questionnaire, which has been developed as a measure of participants' asthma control. The five questions enquire about the frequency and/or severity of symptoms (nocturnal awakening on waking in the morning, activity limitation, and shortness of breath, wheeze) over the previous week. The response options for all these questions consist of a zero (no impairment/limitation) to six (total impairment/ limitation) scale.
Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 34, 46, and 52
Part B: Number of participants with Neutralizing Antibody (NAb) to GSK5784283
Time Frame: Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks
Baseline (Day 1) and at 2, 4, 8,12, 20, 26, 28, 30, 34, 38, 46, and 52 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 10, 2025

Primary Completion (Estimated)

July 17, 2026

Study Completion (Estimated)

September 9, 2027

Study Registration Dates

First Submitted

December 19, 2024

First Submitted That Met QC Criteria

December 19, 2024

First Posted (Actual)

December 24, 2024

Study Record Updates

Last Update Posted (Actual)

May 22, 2026

Last Update Submitted That Met QC Criteria

May 20, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Qualified researchers may request access to anonymized individual patient-level data (IPD) and related study documents of the eligible studies via the Data Sharing Portal. Details on GSK's data sharing criteria can be found at: https://www.gsk.com/en-gb/innovation/trials/data-transparency/

IPD Sharing Time Frame

Anonymized IPD will be made available within 6 months of publication of primary, key secondary and safety results for studies in product with approved indication(s) or terminated asset(s) across all indications.

IPD Sharing Access Criteria

Anonymized IPD is shared with researchers whose proposals are approved by an 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 may be granted, when justified, for up to 6 months.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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