Last updated: 11/17/2025 12:40:09
Efficacy and Safety of Depemokimab Compared With Mepolizumab in Adults With Relapsing or Refractory Eosinophilic Granulomatosis With Polyangiitis (EGPA)OCEAN
GSK study ID
217102
Clinicaltrials.gov ID
EudraCT ID
Not applicable
EU CT Number
Trial status
Active, not recruiting
Active, not recruiting
Trial overview
Official title: A 52-week, Randomized, Double-blind, Double-dummy, Parallel-group, Multi-centre, Non-inferiority Study to Investigate the Efficacy and Safety of Depemokimab Compared With Mepolizumab in Adults With Relapsing or Refractory Eosinophilic Granulomatosis With Polyangiitis (EGPA) Receiving Standard of Care (SoC) Therapy
Trial description: This study aims to investigate the efficacy and safety of depemokimab compared with mepolizumab in adults with relapsing or refractory EGPA receiving SoC therapy.
Primary purpose:
Treatment
Trial design:
Parallel Assignment
Masking:
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Allocation:
Randomized
Primary outcomes:
Number of participants with remission (Birmingham Vasculitis Activity Score [BVAS] =0 and a dose of oral corticosteroid [OCS] less than or equal to [<=] 4 milligram [mg] per day)
Timeframe: Up to Week 52
Secondary outcomes:
Number of participants in each category of accrued duration of remission
Timeframe: Up to Week 52
Number of participants with total accrued duration of remission
Timeframe: Up to Week 52
Time to first EGPA relapse
Timeframe: Up to Week 52
Number of participants receiving in each category of mean OCS dose during the last 4 weeks of study treatment period (Weeks 49 to 52)
Timeframe: Weeks 49 to 52
Number of participants achieving remission (BVAS = 0 and OCS <= 4 mg/day) within the first 24 weeks with continued remission until Week 52
Timeframe: Up to Week 52
Number of participants achieving remission using the European League against Rheumatism (EULAR) definition (BVAS = 0 and OCS <=7.5 mg/day) at Weeks 36 and 52
Timeframe: At Weeks 36 and 52
Number of participants in each category of accrued duration of remission according to the EULAR definition of remission (BVAS = 0 plus OCS <=7.5 mg/day) over 52-week intervention period
Timeframe: Up to Week 52
Number of participants with total accrued duration of remission according to the EULAR definition of remission
Timeframe: Up to Week 52
Number of participants with remission (BVAS=0 and OCS <=7.5 mg/day) within the first 24 weeks with continued remission until Week 52
Timeframe: Up to Week 52
Interventions:
Biological/vaccine: Depemokimab
Biological/vaccine: Mepolizumab
Drug: Placebo matching mepolizumab
Drug: Placebo matching depemokimab
Enrollment:
163
Observational study model:
Not applicable
Primary completion date:
2026-29-09
Time perspective:
Not applicable
Clinical publications:
Not applicable
Medical condition
Eosinophilic Granulomatosis with Polyangiitis
Product
mepolizumab
Collaborators
Not applicable
Study date(s)
July 2022 to October 2026
Type
Interventional
Phase
3
Participation criteria
Sex
Female & Male
Age
18+ years
Accepts healthy volunteers
No
- Participant (male or female) must be 18 years of age or older at the time of signing the informed consent.
- Participants who are >=40 kilogram at Screening Visit 1.
- Participants diagnosed with granulomatosis with polyangiitis; previously known as Wegener's granulomatosis or microscopic polyangiitis.
- Participants with organ-threatening EGPA as per EULAR criteria,
Inclusion and exclusion criteria
Inclusion criteria:
- Participant (male or female) must be 18 years of age or older at the time of signing the informed consent.
- Participants who are >=40 kilogram at Screening Visit 1.
- Participants with a documented diagnosis of EGPA for at least 6 months based on the history or presence of: asthma plus eosinophilia defined as >1.0*10^9/Liter (L) and/or >10 percentage (%) of leucocytes plus at least 2 of the following additional features of EGPA: a biopsy showing histopathological evidence of eosinophilic vasculitis, or perivascular eosinophilic infiltration, or eosinophil-rich granulomatous inflammation, neuropathy, mono or poly (motor deficit or nerve conduction abnormality), pulmonary infiltrates, non-fixed, sino-nasal abnormality, cardiomyopathy (established by echocardiography or magnetic resonance imaging), glomerulonephritis (hematuria, red cell casts, proteinuria), alveolar hemorrhage (by bronchoalveolar lavage), palpable purpura, anti-neutrophil cytoplasmic antibodies positive Myeloperoxidase or Proteinase 3.
- History of relapsing OR refractory disease.
- Participants must be on a stable dose of oral prednisolone or prednisone of >=7.5 mg/day (but not >50 mg/day) or equivalent for at least 4 weeks prior to Baseline (Visit 2).
- If participants receiving immunosuppressive therapy (excluding cyclophosphamide) the dosage must be stable for the 4 weeks prior to Baseline (Visit 2) and during the study.
- A female participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies: Is a woman of non-childbearing potential (WONCBP) OR Is a woman of childbearing potential (WOCBP) and using a contraceptive method that is highly effective, with a failure rate of <1%.
- Capable of giving signed informed consent
Exclusion criteria:
- Participants diagnosed with granulomatosis with polyangiitis; previously known as Wegener's granulomatosis or microscopic polyangiitis.
- Participants with organ-threatening EGPA as per EULAR criteria,
- Imminently life-threatening EGPA disease within 3 months prior to Screening (Visit 1).
- A current malignancy or previous history of cancer in remission for less than 12 months prior to Screening.
- Participants with alanine aminotransferase >2*upper limit of normal (ULN) or if participant is on background methotrexate or azathioprine >3*ULN, aspartate aminotransferase >2*ULN or if participant is on background methotrexate or azathioprine >3*ULN, alkaline phosphatase >=2.0*ULN, total bilirubin >1.5*ULN (isolated bilirubin >1.5*ULN is acceptable if bilirubin is fractionated and direct bilirubin <35%), Cirrhosis or current unstable liver or biliary disease per investigator assessment.
- Participants who have severe or clinically significant cardiovascular disease uncontrolled with standard treatment.
- Participants who have known, pre-existing, clinically significant system abnormalities that are not associated with EGPA and are uncontrolled with standard treatment.
- Clinically significant abnormality in the hematological, biochemical or urinalysis screen at Visit 1.
- Chronic or ongoing active infectious disease requiring systemic treatment.
- Participants with a known, pre-existing parasitic infestation within 6 months prior to Screening Visit 1.
- A known immunodeficiency (e.g., human immunodeficiency virus [HIV]).
- Participants that, according to the investigator's medical judgment, are likely to have active coronavirus disease 2019 (COVID-19) infection. Participants with known COVID-19 positive contacts within the past 14 days must be excluded for at least 14 days following the exposure during which the participant must remain symptom-free.
- Participants with a known allergy or intolerance to a monoclonal antibody or biologic therapy or any of the excipients of the investigational products.
- Participants who have a previous documented failure with anti-Interleukin-5 /Interleukin-5 receptor therapy (e.g., mepolizumab, reslizumab, benralizumab). Participants who have received monoclonal antibodies (mAb) and who have not undergone the required washout periods, prior to Visit 1.
- Participants receiving any of the following: Oral corticosteroids: Participant requires an oral corticosteroid dose of >50 mg/day prednisolone/prednisone in the 4-week period prior to Baseline (Visit 2), Intravenous (IV), intramuscular or subcutaneous (SC) corticosteroids in the 4-week period prior to Baseline (Visit 2), Omalizumab within 130 days prior to Screening (Visit 1), Cyclophosphamide (CYC): oral CYC within 4 weeks prior to Baseline (Visit 2) and IV CYC within 3 weeks prior to Baseline (Visit 2), if their total white blood cells is >=4*10^9/L (measured using the local laboratory if necessary), Rituximab within 12 months prior to Screening (Visit 1); in addition, the Participant must have shown recovery of peripheral B-cell count to within the normal range, Tezepelumab and Dupilumab with a washout period of 5 half-lives prior to Screening Visit 1, IV or SC immunoglobulin within 6 months prior to Screening (Visit 1); For China and Japan only within 12 weeks prior to Screening (Visit 1), Interferon-alpha within 6 months prior to Screening Visit 1, Anti-tumor necrosis factor therapy within 12 weeks prior to Screening Visit 1, Anti-CD52 (alemtuzumab) within 6 months prior to Screening Visit 1.
- Participants with QT interval corrected for heart rate according to Fridericia's formula (QTcF) >=450 milliseconds (msec) or QTcF >=480 msec for participants with Bundle Branch Block in the 12-lead ECG central over-read from at Screening Visit 1.
Trial location(s)
Location
GSK Investigational Site
Norfolk, VA, United States, 23507
Status
Recruitment Complete
Location
GSK Investigational Site
Denver, CO, United States, 80206
Status
Recruitment Complete
Location
GSK Investigational Site
Philadelphia, PA, United States, 19104
Status
Recruitment Complete
Location
GSK Investigational Site
Gainesville, FL, United States, 32610
Status
Recruitment Complete
Location
GSK Investigational Site
Montpellier cedex, France, 34295
Status
Recruitment Complete
Location
GSK Investigational Site
SAN MIGUEL DE TUCUMAN, Argentina, T4000
Status
Study Complete
Location
GSK Investigational Site
Pittsburgh, PA, United States, 15261
Status
Recruitment Complete
Location
GSK Investigational Site
Manhasset, NY, United States, 11030
Status
Terminated/Withdrawn
Location
GSK Investigational Site
Charlotte, NC, United States, 28211
Status
Recruitment Complete
Location
GSK Investigational Site
Nashville, TN, United States, 37208
Status
Terminated/Withdrawn
Study documents
No study documents available.
Results overview
Study Results yet to be posted
Recruitment status
Active, not recruiting
Actual primary completion date
Not applicable
Actual study completion date
Not applicable
Plain language summaries
Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.
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