Last updated: 04/24/2026 15:00:21
A study of GSK3511294 (Depemokimab) compared with mepolizumab or benralizumab in participants with severe asthma with an eosinophilic phenotypeNIMBLE
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Completed
Completed
Trial overview
Official title: A 52-week, randomised, double-blind, double-dummy, parallel group, multi-centre, non-inferiority study assessing exacerbation rate, additional measures of asthma control and safety in adult and adolescent severe asthmatic participants with an eosinophilic phenotype treated with GSK3511294 compared with mepolizumab or benralizumab
Trial description: 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.
Primary purpose:
Treatment
Trial design:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Allocation:
Randomized
Primary outcomes:
Annualized rate of clinically significant exacerbations over 52 weeks
Timeframe: Up to Week 52
Secondary outcomes:
Weighted mean (WM) change from Baseline in St. George's Respiratory Questionnaire (SGRQ) total score
Timeframe: Baseline (Day 1) and Week 52
Weighted mean change from Baseline in Asthma Control Questionnaire-5 (ACQ-5) score
Timeframe: Baseline (Day 1) and Week 52
Weighted mean change from Baseline in pre-bronchodilator forced expiratory volume in one second (FEV1)
Timeframe: Baseline (Day 1) and Week 52
Interventions:
Biological/vaccine: GSK3511294 (Depemokimab)
Biological/vaccine: Mepolizumab
Biological/vaccine: Benralizumab
Biological/vaccine: Placebo
Drug: Standard of care (SoC)
Device: Pre-filled Syringes (PFS)
Enrollment:
1717
Observational study model:
Not applicable
Primary completion date:
2025-14-09
Time perspective:
Not applicable
Clinical publications:
Geoffrey Chupp, Hiroyuki Nagase, Dirk Skowasch, Gilles Devouassoux, Andréanne Côté, Daniel J Jackson, David J Jackson, Michael E Wechsler, Varsha Imber, John E McGinniss, Sherine O K, Peter Howarth, Ian D Pavord, . Switching to twice-yearly depemokimab from mepolizumab/benralizumab in severe asthma: A multicenter, randomized, double-blind, Phase 3A Clinical Trial (NIMBLE). American journal of respiratory and critical care medicine. 2026-Feb-11; doi:10.1093/ajrccm/aamag031 http://dx.doi.org/aamag03110.1093/ajrccm/aamag031
PMID: 41738176
DOI: 10.1093/ajrccm/aamag031
Medical condition
Asthma
Product
Not applicable
Collaborators
IQVIA
Study date(s)
January 2021 to September 2025
Type
Interventional
Phase
3
Participation criteria
Sex
Female & Male
Age
12+ years
Accepts healthy volunteers
No
- Key inclusion criteria for study:
- Adult and adolescent participants more than or equal to (>=)12 years of age, at the time of signing the informed consent/assent.
Inclusion and exclusion criteria
Inclusion criteria:
- Key inclusion criteria for study:
- 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.
- 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 (mcg) fluticasone propionate (FP) hydrofluoroalkane (HFA) product daily, or clinically comparable. Participants who are treated with medium dose ICS will also need to be treated with a LABA to qualify for inclusion.
- Current treatment with at least one additional controller medication, besides ICS [for example (e.g.), LABA, LAMA, leukotriene receptor antagonist (LTRA), or theophylline]. Key exclusion criteria for study:
- 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. Key exclusion criteria for randomization:
- 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.
Trial location(s)
Location
GSK Investigational Site
NEWCASTLE UPON TYNE, Unmapped, NE7 7DN
Status
Study Complete
Location
GSK Investigational Site
Macquarie University, NSW, Australia, 2109
Status
Study Complete
Study documents
Study report synopsis
Available language(s): English
Protocol
Available language(s): English
Statistical analysis plan
Available language(s): English
If you wish to request for full study report, please contact - [email protected]
Results overview
Results posted on ClinicalTrials.gov
Recruitment status
Completed
Actual primary completion date
2025-14-09
Actual study completion date
2025-14-09
Plain language summaries
Summary of results in plain language
Available language(s): English, Arabic (Israel), Dutch, Finnish, French (Canadian), French, French (Switzerland), German (Austria), German, German (Switzerland), Hebrew, Italian, Italian (Switzerland), Japanese, Norwegian, Polish, Portuguese (Native), Russian (Israel), Slovenian, Spanish (Puerto Rico), Spanish, Spanish (United States), Swedish (Finland), Swedish, Chinese (Taiwan)
To view plain language summaries on trialsummaries.com click here.
Additional information about the trial
Additional information
Not applicable
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