AsthmaPhase 3SWIFT-2NCT04718103
A Study of GSK3511294 (Depemokimab) in Participants With Severe Asthma With an Eosinophilic Phenotype
A Phase 3 study testing GSK3511294 in people with Asthma, run by GlaxoSmithKline at 129 sites in 11 countries.
Trial summary
This study will assess the efficacy and safety of GSK3511294 (Depemokimab) as an adjunctive therapy in participants with severe uncontrolled asthma with an eosinophilic phenotype. Read more about this study
- Who is it for?
- Ages 12 years and older
- Conditions the study is for
- Asthma
- What is being tested?
- GSK3511294
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 397 participants
- Where
- 129 sitesin 11 countries
- Study dates
- 4 Feb 2021to 11 Apr 2024
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 12 years and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Adults and adolescents greater than or equal to (>=)12 years of age, at the time of signing the informed consent/assent.
- Participants must 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 and
- Eosinophilic phenotype: participants who have, or with high likelihood of having, asthma with an eosinophilic phenotype as per randomization criteria, and
- Exacerbation history: participants who have previously confirmed history of >=2 exacerbations requiring treatment with systemic corticosteroid (CS) (Intramuscular [IM], Intravenous [IV], or oral), in the 12 months prior to Visit 1, despite the use of medium to high-dose ICS. For participants receiving maintenance CS, the CS treatment for the exacerbations must have been a two-fold dose increase or greater.
- Persistent airflow obstruction as indicated by (i) For participants >=18 years of age at Visit 1, a pre-bronchodilator FEV1 less than (<)80 percent (%) predicted National Health and Nutrition Examination Survey (NHANES III) recorded at Visit 1.
- For participants 12-17 years of age at Visit 1: A pre-bronchodilator FEV1 <90% predicted (NHANES III) recorded at Visit 1 or FEV1: Forced Vital Capacity (FVC) ratio <0.8 recorded at Visit 1.
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- A well-documented requirement for regular treatment with medium to high dose ICS (in the 12 months prior to Visit 1 with or without maintenance OCS). The maintenance ICS dose must be >=440 micrograms fluticasone propionate (FP) hydrofluoroalkane product (HFA) daily, or clinically comparable (GINA, 2020). Participants who are treated with medium dose ICS will also need to be treated with LABA to qualify for inclusion.
- Current treatment with at least one additional controller medication, besides ICS, for at least 3 months (for example [e.g.], LABA, LAMA, leukotriene receptor antagonist [LTRA], or theophylline).
- An elevated peripheral blood eosinophil count of >=300 cells per microliter demonstrated in the past 12 months prior to Visit 1 that is related to asthma or an elevated peripheral blood eosinophil count of >=150 cells per microliter at Screening Visit 1 that is related to asthma.
- Evidence of airway reversibility or responsiveness as documented by either:
- Airway reversibility (FEV1>=12% and 200 milliliter [mL]) demonstrated at Visit 1 or Visit 2 using the Maximum Post Bronchodilator Procedure or (ii) Airway reversibility (FEV1>=12% and 200 mL) documented in the 24 months prior to Visit 2 (randomization visit) or (iii) Airway hyper-responsiveness (methacholine: Provocative concentration causing a 20% fall in FEV1 [PC20] of <8 milligrams per milliliter (mg/mL), histamine: Provocative dose that decreases FEV1 by 20% [PD20] of <7.8 micromoles, mannitol: decrease in FEV1 as per the labelled product instructions) documented in the 24 months prior to Visit 2 (randomization visit).
Who cannot join
- 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 who have known, pre-existing, clinically significant cardiac, endocrine, autoimmune, metabolic, neurological, renal, gastrointestinal, hepatic, hematological or any other system abnormalities that are uncontrolled with standard treatment.
- Participants with current diagnosis of vasculitis. Participants with high clinical suspicion of vasculitis at screening will be evaluated and current vasculitis must be excluded prior to enrolment.
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- Participants who have received mepolizumab (Nucala), reslizumab (Cinqair/Cinqaero), or benralizumab (Fasenra) within 12 months prior to Visit 1 or who have a previous documented failure with Anti-Interleukin-5/Anti-Interleukin-5 receptor (anti-IL-5/5R) therapy.
- Participants who have received omalizumab (Xolair) or dupilumab (Dupixent) within 130 days prior to Visit 1.
- Participants who have received any monoclonal antibody (mAb) within 5 half-lives of Visit 1.
- Previously participated in any study with mepolizumab, reslizumab, or benralizumab and received study intervention (including placebo) within 12 months prior to 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 = [number of cigarettes per day/ 20] multiplied by 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 the excipients of GSK3511294 or any mAb or biologic.
- QTcF >= 450 msec or QTcF >=480 msec for participants with Bundle Branch Block, at randomization Visit 2 are excluded. Participants are excluded if an abnormal Electrocardiogram (ECG) finding from the 12-lead ECG conducted at Screening Visit 1 is considered to be clinically significant and would impact the participant's participation during the study, based on the evaluation of the Investigator.
- 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.
- 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.
Trial locations and contacts
129 sites in 11 countries.
129 sites in 11 countries
United States41 sites
GSK Investigational Site
Alabaster, Alabama, 35007
GSK Investigational Site
Allen, Texas, 75013
GSK Investigational Site
Altoona, Pennsylvania, 16601
GSK Investigational Site
Atlanta, Georgia, 30281
GSK Investigational Site
Aventura, Florida, 33180
GSK Investigational Site
Bellingham, Washington, 98225
GSK Investigational Site
Beverly Hills, California, 90048
GSK Investigational Site
Boerne, Texas, 78006
GSK Investigational Site
Cincinnati, Ohio, 45229
GSK Investigational Site
Cincinnati, Ohio, 45231
GSK Investigational Site
Colorado Springs, Colorado, 80923
GSK Investigational Site
Columbia, Maryland, 21044
GSK Investigational Site
Dallas, Texas, 75225
GSK Investigational Site
Dearborn, Michigan, 48124
GSK Investigational Site
DuBois, Pennsylvania, 15801
GSK Investigational Site
Edmond, Oklahoma, 73034
GSK Investigational Site
Evanston, Illinois, 60026
GSK Investigational Site
Hershey, Pennsylvania, 17033
GSK Investigational Site
Hialeah, Florida, 33014
GSK Investigational Site
Houston, Texas, 77084
GSK Investigational Site
Huntersville, North Carolina, 28078
GSK Investigational Site
Lafayette, Colorado, 80026
GSK Investigational Site
Lancaster, California, 93534
GSK Investigational Site
Miami, Florida, 33144
GSK Investigational Site
Miami, Florida, 33186
GSK Investigational Site
Miami Lakes, Florida, 33014
GSK Investigational Site
Milwaukee, Wisconsin, 53226
GSK Investigational Site
Mobile, Alabama, 36608
GSK Investigational Site
Northfield, New Jersey, 08225
GSK Investigational Site
Orlando, Florida, 32803
GSK Investigational Site
Philadelphia, Pennsylvania, 19140
GSK Investigational Site
Phoenix, Arizona, 85032
GSK Investigational Site
Rapid City, South Dakota, 57702
GSK Investigational Site
San Antonio, Texas, 78207
GSK Investigational Site
San Antonio, Texas, 78229
GSK Investigational Site
San Antonio, Texas, 78258
GSK Investigational Site
St Louis, Missouri, 63110
GSK Investigational Site
The Bronx, New York, 10467
GSK Investigational Site
Toms River, New Jersey, 08755
GSK Investigational Site
Winston-Salem, North Carolina, 27103
GSK Investigational Site
Ypsilanti, Michigan, 48197
Japan30 sites
GSK Investigational Site
Aichi, 470-1192
GSK Investigational Site
Aichi, 489-8642
GSK Investigational Site
Chiba, 275-8580
GSK Investigational Site
Ehime, 790-0024
GSK Investigational Site
Fukui, 910-8526
GSK Investigational Site
Fukuoka, 802-0052
GSK Investigational Site
Fukuoka, 805-8508
GSK Investigational Site
Fukuoka, 811-1394
GSK Investigational Site
Fukuoka, 813-0017
GSK Investigational Site
Fukushima, 960-1295
GSK Investigational Site
Hiroshima, 734-8530
GSK Investigational Site
Hokkaido, 053-8506
GSK Investigational Site
Hokkaido, 064-0804
GSK Investigational Site
Hyōgo, 653-0013
GSK Investigational Site
Hyōgo, 670-0849
GSK Investigational Site
Kagawa, 761-8073
GSK Investigational Site
Kagawa, 762-8550
GSK Investigational Site
Kagoshima, 890-8520
GSK Investigational Site
Kanagawa, 231-8682
GSK Investigational Site
Kanagawa, 232-0024
GSK Investigational Site
Niigata, 951-8520
GSK Investigational Site
Okayama, 702-8055
GSK Investigational Site
Saga, 843-0393
GSK Investigational Site
Shizuoka, 420-8527
GSK Investigational Site
Tokyo, 103-0027
GSK Investigational Site
Tokyo, 141-8625
GSK Investigational Site
Tokyo, 142-8666
GSK Investigational Site
Tokyo, 158-0097
GSK Investigational Site
Tokyo, 185-0014
GSK Investigational Site
Tokyo, 204-8585
Spain16 sites
GSK Investigational Site
Almería, 29631
GSK Investigational Site
Badalona, 08916
GSK Investigational Site
Barcelona, 08023
GSK Investigational Site
Barcelona, 08036
GSK Investigational Site
Bilbao, 48013
GSK Investigational Site
Girona, 17005
GSK Investigational Site
Jerez de la Frontera, 11407
GSK Investigational Site
La Laguna Santa Cruz, 38320
GSK Investigational Site
Madrid, 28040
GSK Investigational Site
Madrid, 28041
GSK Investigational Site
Málaga, 29010
GSK Investigational Site
Pozuelo de AlarcOn Madr, 28223
GSK Investigational Site
Santander, 39008
GSK Investigational Site
Santiago de Compostela, 15706
GSK Investigational Site
Valencia, 46010
GSK Investigational Site
Zaragoza, 50009
Italy10 sites
GSK Investigational Site
Brescia, 25123
GSK Investigational Site
Foggia, 71122
GSK Investigational Site
Messina, 98124
GSK Investigational Site
Monserrato CA, 09042
GSK Investigational Site
Palermo, 90127
GSK Investigational Site
Pietra Ligure SV, 17027
GSK Investigational Site
Rozzano MI, 20089
GSK Investigational Site
Salerno, 84131
GSK Investigational Site
Siena, 53100
GSK Investigational Site
Tradate VA, 21100
Poland7 sites
GSK Investigational Site
Gdansk, 80-214
GSK Investigational Site
Krakow, 30-033
GSK Investigational Site
Krakow, 31-624
GSK Investigational Site
Ostrowiec Świętokrzyski, 27-400
GSK Investigational Site
Rzeszów, 35-051
GSK Investigational Site
Strzelce Opolskie, 47-120
GSK Investigational Site
Wroclaw, 54-239
France6 sites
GSK Investigational Site
Annecy, 74011
GSK Investigational Site
Caen, 14033
GSK Investigational Site
Cannes, 06414
GSK Investigational Site
Marseille, 13015
GSK Investigational Site
Paris, 75014
GSK Investigational Site
Strasbourg, 67091
Taiwan6 sites
GSK Investigational Site
Kaohsiung City, 807
GSK Investigational Site
Linkou - Taoyuan Hsien, 333
GSK Investigational Site
Taichung, 402
GSK Investigational Site
Taichung, 40705
GSK Investigational Site
Tainan, 704
GSK Investigational Site
Taipei, 23561
Canada5 sites
GSK Investigational Site
Burlington, Ontario, L7N 3V2
GSK Investigational Site
Kamloops, British Columbia, V1Y 4N7
GSK Investigational Site
Québec, Quebec, G1V 4W2
GSK Investigational Site
Sherwood Park, Alberta, T8H 0N2
GSK Investigational Site
Windsor, 5000
Czechia3 sites
GSK Investigational Site
Jindřichův Hradec, 377 01
GSK Investigational Site
Tábor, 390 02
GSK Investigational Site
Teplice, 415 01
Hungary3 sites
GSK Investigational Site
GOdOll?, 2100
GSK Investigational Site
Mosonmagyaróvár, 9200
GSK Investigational Site
Szigetvár, 7900
Australia2 sites
GSK Investigational Site
Coffs Harbour, New South Wales, 2450
GSK Investigational Site
South Brisbane, Queensland, 4101
About this study
Official title: A 52-week, Randomised, Double-blind, Placebo-controlled, Parallel-group, Multi-centre Study of the Efficacy and Safety of GSK3511294 Adjunctive Therapy in Adult and Adolescent Participants With Severe Uncontrolled Asthma With an Eosinophilic Phenotype
This study will assess the efficacy and safety of GSK3511294 (Depemokimab) as an adjunctive therapy in participants with severe uncontrolled asthma with an eosinophilic phenotype.
- Conditions
- Asthma
- Being tested
- GSK3511294, Placebo
- Keywords
- Asthma, Eosinophilic phenotype, Exacerbations, GSK3511294 (Depemokimab), Placebo
- Medical subject headings
- Asthma
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
GSK3511294Biological
Also called Depemokimab
GSK3511294 was administered using a pre-filled syringe.
PlaceboBiological
Placebo was administered as normal saline using a pre-filled syringe.
| Study group | Role | What they receive |
|---|---|---|
| GSK3511294 | Experimental | Participants received a 100 milligram (mg) dose of GSK3511294 subcutaneous (SC) injection once every 26 weeks (week 0 and week 26). Participants were to be maintained on their existing baseline maintenance asthma standard of care (SOC) treatment throughout the study. Receives: Biological: GSK3511294 |
| Placebo | Placebo comparator | Participants received placebo SC injection once every 26 weeks (week 0 and week 26). Participants were to be maintained on their existing baseline maintenance asthma SOC treatment throughout the study. Receives: Biological: Placebo |
What is being measured
The primary outcome is the main question the study is designed to answer.
Annualized Rate of Clinically Significant Exacerbations up to 52 Weeks
Clinically significant exacerbations recorded were defined as worsening of asthma requiring the use of systemic corticosteroids (CS) [such as intramuscular (IM), intravenous (IV) or oral] and/or hospitalization and/or Emergency Department (ED) visit. For all participants, IV or oral steroids (e.g., prednisone) for at least 3 days or a single IM corticosteroid dose is required. For participants on maintenance systemic corticosteroids, at least double the existing maintenance dose for at least 3 days is required. Exacerbations recorded in the electronic case report form (eCRF) were considered as verified clinically significant exacerbations and included in the primary analysis. Exacerbations separated by less than 7 days was treated as a continuation of the same exacerbation.
Measured: Up to Week 52
Secondary outcomes (6)
Change From Baseline in St. George's Respiratory Questionnaire (SGRQ) Total Score at Week 52
The SGRQ is a 50-item patient-reported outcome tool used to measure Quality of Life in participants with airway obstruction diseases. The questions are designed to be self-completed by the participant. The total score was calculated by the symptom score, activity and impact score; and summarizing the impact of the disease on overall health status on 0-100 rating scale. Scores are expressed as a percentage of overall impairment where 100 representing worst possible health status and 0 indicating best possible health status. Higher scores indicating greater impairment of quality of life. Change from Baseline was defined as value at the indicated time point minus Baseline value.
Measured: Baseline (Day 1) and Week 52
Change From Baseline in Asthma Control Questionnaire-5 (ACQ-5) Score at Week 52
The ACQ-5 is a five-item questionnaire developed as a measure of participants asthma symptom control. The questions are designed to be self-completed by the participant. The 5 questions enquired to recall how their asthma had been during the previous week and to respond about the frequency and/or severity of symptoms (nocturnal awakening, waking in the morning, activity limitation, shortness of breath and wheezing). The overall ACQ-5 response option is the mean score of all 5 questions representing 0 with no impairment/limitation and 6 as total impairment/ limitation. Higher scores indicated more limitations and lower score with better asthma control. Change from Baseline was defined as value at the indicated time point minus Baseline value.
Measured: Baseline (Day 1) and Week 52
Change From Baseline in Pre-Bronchodilator Forced Expiratory Volume in One Second (FEV1) At Week 52
Forced Expiratory Volume in One Second (FEV1) is defined as the volume of air that can be forced out in one second after taking a deep breath by a person and will be measured by spirometry testing. Change from Baseline in clinic pre-bronchodilator FEV1 was determined. Change from Baseline was defined as value at the indicated time point minus Baseline value.
Measured: Baseline (Day 1) and Week 52
Change From Baseline in Asthma Nighttime Symptom Diary (ANSD) Weekly Mean Score at Week 52
The ANSD is a 6-item self-administered patient reported diary developed by Patient Related Outcomes (PRO) Consortium's Asthma Working Group to facilitate comprehensive and reliable assessment of asthma symptoms from a participant's perspective. Participants were required to rate the severity of symptoms in 3 core categories: breathing symptoms (wheezing, shortness of breath), chest symptoms (chest tightness, chest pain) and cough. The ANSD was to be completed before going to bed and refers to asthma symptoms during the day. Symptoms are rated at their worst using an 11-point numeric rating scale ranging from 0 (None) to 10 (As bad as you can imagine). Higher scores indicate more severe symptoms. Mean daily scores of ANSD was calculated by weekly intervals. The baseline values were defined as the average score from Day -7 to Day -1 inclusive (at least 4 days must be non-missing). Change from Baseline was defined as value at each time point minus Baseline value.
Measured: Baseline to Week 52
Change From Baseline in Asthma Daily Symptom Diary (ADSD) Weekly Mean Score at Week 52
The ADSD is a 6-item self-administered patient reported diary developed by patient related outcomes (PRO) Consortium's Asthma Working Group to facilitate comprehensive and reliable assessment of asthma symptoms from a participant's perspective. Participants were required to rate the severity of symptoms in 3 core categories: breathing symptoms (wheezing, shortness of breath), chest symptoms (chest tightness, chest pain) and cough. The ADSD was to be completed upon waking and refers to asthma symptoms during the night-time. Symptoms are rated at their worst using an 11-point numeric rating scale ranging from 0 (None) to 10 (As bad as you can imagine). Higher scores indicate more severe symptoms. Mean daily scores of ADSD was calculated by weekly intervals. The baseline values were defined as the average score from Day -7 to Day -1 inclusive (at least 4 days must be non-missing). Change from Baseline was defined as value at each time point minus Baseline value.
Measured: Baseline to Week 52
Annualized Rate of Exacerbations Requiring Hospitalization and/or Emergency Department (ED) Visit up to 52 Weeks
Annualized Rate of exacerbations of asthma were defined as worsening of asthma which required use of systemic corticosteroids (CSs) and/or hospitalization and/or Emergency Department (ED) visit. For all participants, IV or oral steroids (e.g., prednisone) for at least 3 days or a single IM CS dose is required. For participants on maintenance systemic CSs, at least double the existing maintenance dose for at least 3 days is required. Exacerbations separated by less than 7 days will be treated as a continuation of the same exacerbation. Exacerbations Requiring Hospitalization and/or ED Visit are reported here.
Measured: Up to Week 52
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Jan 2021
- Study start4 Feb 2021
- Primary completion11 Apr 2024
- Study completion11 Apr 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (3)Papers the sponsor has linked to this study.
- Other trials for AsthmaStudies of the same condition, open and under way.
- More trials run by GlaxoSmithKlineThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Participants will be randomized in a 2:1 ratio to receive either GSK3511294 (Depemokimab) or placebo as an adjunct therapy.
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 397 participants (actual)
Sponsor and investigators
- Lead sponsor
- GlaxoSmithKline
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- IQVIA Pty Ltd
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04718103
- Sponsor's protocol ID
- 213744
- Acronym
- SWIFT-2
- Status last verified
- Nov 2024
- First submitted
- 18 Jan 2021
- Last updated
- 29 Nov 2024
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- Yes: IPD for this study will be made available via the Clinical Study Data Request site.
Publications
Jackson DJ, Wechsler ME, Jackson DJ, Bernstein D, Korn S, Pfeffer PE, Chen R, Saito J, de Luiz Martinez G, Dymek L, Jacques L, Bird N, Schalkwijk S, Smith D, Howarth P, Pavord ID; SWIFT-1 and SWIFT-2 Investigators; SWIFT-1 Investigators; SWIFT-2 Investigators. Twice-Yearly Depemokimab in Severe Asthma with an Eosinophilic Phenotype. N Engl J Med. 2024 Dec 19;391(24):2337-2349. doi: 10.1056/NEJMoa2406673. Epub 2024 Sep 9.
PubMed 39248309Heffler E, Jarreta D, Zhu CQ, Vichiendilokkul A, Howarth P, Peters A, Quirce S, Jackson DJ. Depemokimab demonstrates efficacy in patients with type 2 asthma with comorbid CRSwNP: Phase III SWIFT-1/-2 analysis. Front Allergy. 2026 Mar 6;7:1766647. doi: 10.3389/falgy.2026.1766647. eCollection 2026.
PubMed 41868651Jackson DJ, Bourdin A, Blackorby A, Leslie A, Vichiendilokkul A, Howarth P, Karkoszka N, Fujieda S, Cornet M. Safety and Tolerability of Twice-Yearly Depemokimab in Patients with Asthma and Chronic Rhinosinusitis with Nasal Polyps: Pooled Results from SWIFT-1/-2 and ANCHOR-1/-2. Adv Ther. 2026 Feb;43(2):880-897. doi: 10.1007/s12325-025-03457-4. Epub 2025 Dec 29.
PubMed 41461999
Study at a glance
From the registry record, last updated by the sponsor on 29 Nov 2024. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A 52-week, Randomised, Double-blind, Placebo-controlled, Parallel-group, Multi-centre Study of the Efficacy and Safety of GSK3511294 Adjunctive Therapy in Adult and Adolescent Participants With Severe Uncontrolled Asthma With an Eosinophilic Phenotype
- ClinicalTrials.gov ID
- NCT04718103
- Acronym / sponsor ID
- SWIFT-2 / 213744
- Conditions
- Asthma
- Keywords
- Asthma, Eosinophilic phenotype, Exacerbations, GSK3511294 (Depemokimab), Placebo
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 397 participants (actual)
- Lead sponsor
- GlaxoSmithKlineIndustry (pharma, biotech, devices)
- Collaborators
- IQVIA Pty Ltd
- Study start
- 4 Feb 2021 (actual)
- Primary completion
- 11 Apr 2024 (actual)
- Study completion
- 11 Apr 2024 (actual)
- First posted
- 22 Jan 2021 (actual)
- Results
- Posted 29 Nov 2024
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study will assess the efficacy and safety of GSK3511294 (Depemokimab) as an adjunctive therapy in participants with severe uncontrolled asthma with an eosinophilic phenotype.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
- Model description
- Participants will be randomized in a 2:1 ratio to receive either GSK3511294 (Depemokimab) or placebo as an adjunct therapy.
| Arm | Type | Receives |
|---|---|---|
| GSK3511294 | Experimental | Biological: GSK3511294Participants received a 100 milligram (mg) dose of GSK3511294 subcutaneous (SC) injection once every 26 weeks (week 0 and week 26). Participants were to be maintained on their existing baseline maintenance asthma standard of care (SOC) treatment throughout the study. |
| Placebo | Placebo comparator | Biological: PlaceboParticipants received placebo SC injection once every 26 weeks (week 0 and week 26). Participants were to be maintained on their existing baseline maintenance asthma SOC treatment throughout the study. |
Who may qualify
- Ages
- 12 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (11 listed)
- Adults and adolescents greater than or equal to (>=)12 years of age, at the time of signing the informed consent/assent.
- Participants must 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 and
- Persistent airflow obstruction as indicated by (i) For participants >=18 years of age at Visit 1, a pre-bronchodilator FEV1 less than (<)80 percent (%) predicted National Health and Nutrition Examination Survey (NHANES III) recorded at Visit 1.
- For participants 12-17 years of age at Visit 1: A pre-bronchodilator FEV1 <90% predicted (NHANES III) recorded at Visit 1 or FEV1: Forced Vital Capacity (FVC) ratio <0.8 recorded at Visit 1.
- A well-documented requirement for regular treatment with medium to high dose ICS (in the 12 months prior to Visit 1 with or without maintenance OCS). The maintenance ICS dose must be >=440 micrograms fluticasone propionate (FP) hydrofluoroalkane product (HFA) daily, or clinically comparable (GINA, 2020). Participants who are treated with medium dose ICS will also need to be treated with LABA to qualify for inclusion.
Key exclusion criteria (16 listed)
- 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 who have known, pre-existing, clinically significant cardiac, endocrine, autoimmune, metabolic, neurological, renal, gastrointestinal, hepatic, hematological or any other system abnormalities that are uncontrolled with standard treatment.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| GSK3511294Also: DepemokimabGSK3511294 was administered using a pre-filled syringe. | Biological | GSK3511294 |
| PlaceboPlacebo was administered as normal saline using a pre-filled syringe. | Biological | Placebo |
Primary outcome
Annualized Rate of Clinically Significant Exacerbations up to 52 Weeks
Time frame: Up to Week 52
Clinically significant exacerbations recorded were defined as worsening of asthma requiring the use of systemic corticosteroids (CS) [such as intramuscular (IM), intravenous (IV) or oral] and/or hospitalization and/or Emergency Department (ED) visit. For all participants, IV or oral steroids (e.g., prednisone) for at least 3 days or a single IM corticosteroid dose is required. For participants on maintenance systemic corticosteroids, at least double the existing maintenance dose for at least 3 days is required. Exacerbations recorded in the electronic case report form (eCRF) were considered as verified clinically significant exacerbations and included in the primary analysis. Exacerbations separated by less than 7 days was treated as a continuation of the same exacerbation.
6 secondary outcomes
Change From Baseline in St. George's Respiratory Questionnaire (SGRQ) Total Score at Week 52
Time frame: Baseline (Day 1) and Week 52
Change From Baseline in Asthma Control Questionnaire-5 (ACQ-5) Score at Week 52
Time frame: Baseline (Day 1) and Week 52
Change From Baseline in Pre-Bronchodilator Forced Expiratory Volume in One Second (FEV1) At Week 52
Time frame: Baseline (Day 1) and Week 52
Change From Baseline in Asthma Nighttime Symptom Diary (ANSD) Weekly Mean Score at Week 52
Time frame: Baseline to Week 52
Change From Baseline in Asthma Daily Symptom Diary (ADSD) Weekly Mean Score at Week 52
Time frame: Baseline to Week 52
Annualized Rate of Exacerbations Requiring Hospitalization and/or Emergency Department (ED) Visit up to 52 Weeks
Time frame: Up to Week 52
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Nov 2024.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 39248309Jackson DJ, Wechsler ME, Jackson DJ, Bernstein D, Korn S, Pfeffer PE, Chen R, Saito J, de Luiz Martinez G, Dymek L, Jacques L, Bird N, Schalkwijk S, Smith D, Howarth P, Pavord ID; SWIFT-1 and SWIFT-2 Investigators; SWIFT-1 Investigators; SWIFT-2 Investigators. Twice-Yearly Depemokimab in Severe Asthma with an Eosinophilic Phenotype. N Engl J Med. 2024 Dec 19;391(24):2337-2349. doi: 10.1056/NEJMoa2406673. Epub 2024 Sep 9.
- Derived from this study: PubMed 41868651Heffler E, Jarreta D, Zhu CQ, Vichiendilokkul A, Howarth P, Peters A, Quirce S, Jackson DJ. Depemokimab demonstrates efficacy in patients with type 2 asthma with comorbid CRSwNP: Phase III SWIFT-1/-2 analysis. Front Allergy. 2026 Mar 6;7:1766647. doi: 10.3389/falgy.2026.1766647. eCollection 2026.
- Derived from this study: PubMed 41461999Jackson DJ, Bourdin A, Blackorby A, Leslie A, Vichiendilokkul A, Howarth P, Karkoszka N, Fujieda S, Cornet M. Safety and Tolerability of Twice-Yearly Depemokimab in Patients with Asthma and Chronic Rhinosinusitis with Nasal Polyps: Pooled Results from SWIFT-1/-2 and ANCHOR-1/-2. Adv Ther. 2026 Feb;43(2):880-897. doi: 10.1007/s12325-025-03457-4. Epub 2025 Dec 29.
- Individual participant dataSharing planned: Yes. IPD for this study will be made available via the Clinical Study Data Request site.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
GSK Clinical Trials study director
GlaxoSmithKline
129 sites in 11 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing GSK3511294 in people with Asthma, run by GlaxoSmithKline at 129 sites in 11 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 11 inclusion and 16 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 29 Nov 2024. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 129 sites in United States, Japan, Spain, Italy, Poland and 6 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 29 Nov 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Annualized Rate of Clinically Significant Exacerbations up to 52 Weeks (time frame: Up to Week 52). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04718103, which also lists 3 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Nov 2024; AzTrials last refreshed its copy on 8 Nov 2026.