- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06230354
Explore the Efficacy and Mechanism of Action of Tezepelumab in Eosinophilic Granulomatosis With Polyangiitis (RACEMATE)
A RAndomised Placebo Controlled Trial - to Explore the Efficacy and Mechanism of Action of Tezepelumab in Eosinophilic Granulomatosis With Polyangiitis
Study Overview
Status
Intervention / Treatment
Detailed Description
RACEMATE is a randomised double-blind placebo-controlled experimental medicine study designed to explore both the efficacy and mechanism of action of tezepelumab (210 milligram [mg] administered subcutaneously [SC] every 4 weeks) compared with placebo over a 24-week study treatment period in subjects with active (non-severe) Eosinophilic Granulomatosis with Polyangiitis (EGPA) receiving standard of care therapy including background corticosteroid therapy with or without immunomodulatory therapy. This study will take place across 16 centres in the United Kingdom. Corticosteroid dose will be tapered during the treatment period in accordance with standard of care.
The key outcome of this study focuses on evaluation of clinical remission, defined as a Birmingham Vasculitis Activity Score (BVAS) version 3 of 0 and receipt of prednisolone ≤ 4mg daily and no receipt of oral corticosteroids above baseline during the treatment period. Secondary outcomes will include reduction in disease flare, improvement in scores for asthma control, sino-nasal disease and spirometry amongst others.
Study Type
Enrollment (Estimated)
Phase
- Phase 2
Contacts and Locations
Study Contact
- Name: Salman Siddiqui, MBBS
- Phone Number: +44 (0)20 7594 5303
- Email: s.siddiqui@imperial.ac.uk
Study Contact Backup
- Name: Salma SAMSUDDIN
- Email: s.samsuddin@imperial.ac.uk
Study Locations
-
-
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Aberdeen, United Kingdom, AB25 2ZN
- Aberdeen Royal Infirmary - NHS Grampian
-
Contact:
- Dana Kidder
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Birmingham, United Kingdom, B15 2GW
- University Hospitals Birmingham NHS Foundation Trust
-
Contact:
- Benjamin Sutton
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Cambridge, United Kingdom, CB2 0QQ
- Cambridge University Hospitals NHS Foundation Trust
-
Contact:
- Rachel Jones
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Leicester, United Kingdom, LE3 9QP
- University Hospitals Of Leicester Nhs Trust
-
Contact:
- Shamsa Naveed
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Liverpool, United Kingdom, L7 8YE
- Liverpool University Hospitals NHS Foundation Trust
-
London, United Kingdom, EC1A 7BE
- Barts Health NHS Trust
-
Contact:
- Paul Pfeffer
-
London, United Kingdom, W2 1PG
- Imperial College Healthcare NHS Trust
-
Contact:
- Salman Siddiqui
-
London, United Kingdom, NW3 2QG
- Royal Free London NHS Trust
-
Contact:
- Simon Brill
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London, United Kingdom, SE1 9RT
- Guy's Hospital - Guy's and St Thomas' NHS Foundation Trust
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Contact:
- David Jackson
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London, United Kingdom, SW3 6NP
- Royal Brompton Hospital - Guy's and St Thomas' NHS Foundation Trust
-
Contact:
- Pujan Patel
-
Manchester, United Kingdom, M13 9WL
- Manchester University NHS Foundation Trust
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Nottingham, United Kingdom, NG7 2UH
- Nottingham University Hospitals NHS Foundation Trust
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Contact:
- Fiona Pearce
-
Southampton, United Kingdom, SO16 6YD
- University Hospital Southampton NHS Foundation Trust
-
Contact:
- Hitasha Rupani
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Capable of providing written informed consent
Eosinophilic granulomatosis with polyangiitis is defined as a history of asthma, a blood eosinophil level of 10% or an absolute eosinophil count of more than 1.0 x10^9/L, and the presence of two or more criteria:
- Histopathological evidence of eosinophilic vasculitis
- Perivascular eosinophilic infiltration, or eosinophil-rich granulomatous inflammation
- Neuropathy
- Pulmonary infiltrate
- Sino-nasal abnormality
- Cardiomyopathy
- Glomerulonephritis
- Alveolar haemorrhage
- Palpable purpura
- Anti-neutrophil cytoplasmic antibody [ANCA] positivity
History of one or more flares of EGPA in 24 months prior to screening. EGPA flares will be defined as worsening or persistence of active disease characterised by:
- Active vasculitis (BVAS >0); OR
- An asthma exacerbation/asthma worsening OR
- Active nasal and/or sinus disease
Warranting:
- Rescue use of prednisolone for 3 or more days OR an increase in background prednisolone dose by at least 5 mg daily for at least three days OR
- An increased dose or addition of immunosuppressive therapy; OR
- Hospitalisation related to EGPA worsening
Blood eosinophil level at screening (visit 1) of ≥ 0.2 x10^9/L (participants can be re screened once within 2 weeks if the BEC is < 0.2 x10^9/L at the initial screening assessment).
n.b. This criterion is not relevant for participants taking background anti-IL-5/5R biological agents mepolizumab (MEPO) or benralizumab (BRZ) in which any baseline blood eosinophil count (BEC) permitted.
- Non severe EGPA according to the American College of Rheumatology 2021 definition.
Non-Severe EGPA: Vasculitis without life- or organ-threatening manifestations (e.g., rhinosinusitis, asthma, mild systemic symptoms, uncomplicated cutaneous disease, mild inflammatory arthritis).
6. Stable dose of prednisolone (≥5.0 to ≤30.0 mg per day, with or without additional Immunomodulatory therapy) for at least 4 weeks before the baseline visit.
7. Immunomodulatory therapy:
(i) If receiving non-biologic immunomodulatory therapy, the dosage must be stable for the 4 weeks prior to baseline visit.
(ii) Patients on background anti-IL-5/5R therapy (either MEPO or BRZ) at any licensed dose for the current clinical indications of severe asthma and EGPA in the UK and Europe respectively AND have been on treatment for at least 6 months.
n.b. participants on background anti-IL-5/5R therapy will be capped to no more than 50% of the total sample size.
Exclusion Criteria:
- Diagnosis of Granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA).
- Pregnancy or unable to use a highly effective method of birth control (confirmed by the Investigator) from randomisation throughout the study duration and within 8 weeks after last dose of IMP.
Active life- or organ-threatening manifestations of EGPA within 6 months prior to screening, defined as:
- Severe alveolar haemorrhage
- Rapidly progressive glomerulonephritis
- Severe gastrointestinal or central nervous system involvement requiring intensification of immunosuppression or surgery
- Severe cardiac involvement including life threatening arrhythmia, heart failure with an ejection fraction < 20% or acute myocardial infarction or active myocarditis
- Current active malignancy.
- Immunodeficiency including HIV
- Helminth infection within 6-months of screening that has not been treated or remains refractory to treatment.
- Unstable liver disease with the exception of Gilberts syndrome or asymptomatic gallstones.
Use of a prohibited concurrent medication as listed below:
- Biologic therapy for severe asthma (except MEPO or BRZ) within 4 months or 5 half-lives (whichever is longer) prior to Visit 1 or receipt of any investigational non-biologic agent within 30 days or 5 half-lives (whichever is longest) prior to Visit 1.
- Biologic therapies for EGPA including Rituximab and Alemtuzumab within 6 months of visit 1.
- IV or SC immunoglobulin therapy within 3 months of visit 1.
- Oral cyclophosphamide within 6 weeks of screening or IV cyclophosphamide within 4 months of visit 1.
- IM or IV corticosteroids within 6 weeks of visit 1.
- Known adrenal insufficiency (primary or secondary), that in the opinion of the investigator and clinical care team preclude maintenance oral steroid tapering
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Tezepelumab
Tezepelumab subcutaneous injection
|
Tezepelumab subcutaneous injection
|
Placebo Comparator: Placebo
Placebo subcutaneous injection
|
Placebo subcutaneous injection
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Proportion of participants who are in remission at week 24
Time Frame: Week 24
|
The proportion of patients who achieve remission at week 24 (defined as a Birmingham Vasculitis Activity Score (BVAS) version 3 score of 0 and receipt of prednisolone of ≤ 4mg daily and no receipt of oral steroids above baseline dose in the 4 weeks prior to week 24).
BVAS is a validated tool for assessment of disease activity in patients with vasculitis with potential scores ranging from 0-63, with higher scores indicating worse disease activity.
|
Week 24
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Total accrued duration of remission
Time Frame: Up to Week 24
|
Total accrued weeks of remission defined as defined as a Birmingham Vasculitis Activity Score (BVAS) - version 3, score of 0 with mOCS dose of prednisolone/prednisolone ≤ 4mg/day and BVAS of 0.
|
Up to Week 24
|
Proportion of participants that demonstrate sustained remission
Time Frame: Up to Week 24
|
The proportion of patients that demonstrate sustained remission at both weeks 20 and 24 (defined as a BVAS version 3 score of 0 and receipt of prednisolone of ≤ 4 mg daily and no receipt of oral steroids above baseline dose between weeks 16 and 24)
|
Up to Week 24
|
Proportion of participants that tapered mOCS by at least 2.5 mg/day
Time Frame: Up to Week 24
|
Proportion of patients that tapered their maintenance oral corticosteroids (mOCS) by at least 2.5 mg/day of prednisolone equivalent during the OCS tapering period, who remained in remission
|
Up to Week 24
|
Change in European Quality of Life 5 Dimensions 5 Level (EuroQoL-5D-5L)
Time Frame: Up to Week 24
|
Change from baseline (week 0) to week 24 in the European Quality of Life 5 Dimensions 5 Level (EuroQoL-5D-5L) questionnaire score.
The EuroQoL-5D-5L is a validated standardised descriptive measure of health-related quality of life with potential scores ranging from "no problems" to "extreme problems" in all domains.
The questionnaire also asks the participant to indicate their overall health that day on a scale of 0-100, with lower scores indicating worse health.
|
Up to Week 24
|
Change in Juniper 6-item Asthma Control Questionnaire (ACQ-6)
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline to week 12 and 24 in Juniper 6-item Asthma Control Questionnaire (ACQ-6) score.
The ACQ-6 is a validated assessment of asthma symptom control, with potential scores ranging from 0-6, with higher scores indicating worse asthma symptom control.
|
Between Week 0 and/or Week 12 and Week 24
|
Change in blood eosinophil level
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) to week 12 and 24 in blood eosinophil level
|
Between Week 0 and/or Week 12 and Week 24
|
Change in spirometry
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) to weeks 12 and 24 in pre-bronchodilator FEV1% predicted and FEV1/FVC ratio.
|
Between Week 0 and/or Week 12 and Week 24
|
Change in FeNO
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) to weeks 12 and 24 in Fractional Exhaled Nitric Oxide level (FeNO).
|
Between Week 0 and/or Week 12 and Week 24
|
Change in eGFR
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) to weeks 12 and 24 in estimated glomerular filtration rate (eGFR).
|
Between Week 0 and/or Week 12 and Week 24
|
Change in SinoNasal Outcome Test-22 (SNOT-22)
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) to weeks 12 & 24 in the SinoNasal Outcome Test-22 questionnaire score (SNOT-22).
SNOT-22 is a validated assessment of the burden of chronic rhinosinusitis with potential scores ranging from 0-110, with higher scores indicating a worse impact on health-related quality of life.
|
Between Week 0 and/or Week 12 and Week 24
|
Time to first EGPA flare
Time Frame: Up to Week 24
|
EGPA flare was defined as worsening or recurrence of active disease since the last visit characterised by active vasculitis (BVAS >0) or active asthma symptoms and/or signs with a corresponding worsening in Asthma Control Questionnaire-6 (ACQ-6) score or active nasal and/or sinus disease, with a corresponding worsening in at least one of the sino-nasal symptom questions warranting: (i) rescue use of prednisolone/equivalent systemic steroid for 3 or more days OR an increase in background prednisolone/equivalent systemic steroid dose by at least 5 mg daily of prednisolone equivalents for at least three days OR (ii) an increased dose or addition of immunosuppressive therapy; OR (iii) hospitalization related to EGPA worsening.
The number of participants with at least one EGPA flare during the planned study treatment period are presented.
|
Up to Week 24
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
EGPA flare type
Time Frame: Up to Week 24
|
EGPA flare type as assessed by the local investigator according to the following three primary categories: (1) asthma exacerbation, (2) Sino-nasal disease exacerbation, (3) relapse of systemic vasculitis.
|
Up to Week 24
|
Change in nEPX
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) to weeks 12 and 24 in nasal eosinophil peroxidase (nEPX) level.
|
Between Week 0 and/or Week 12 and Week 24
|
Change in uACR
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) to week 12 and week 24 in urinary albumin to creatinine ratio (uACR).
|
Between Week 0 and/or Week 12 and Week 24
|
Change in ANCA
Time Frame: Between Week 0 and/or Week 12 and Week 24
|
Change from baseline (week 0) and week 24 in Anti Neutrophil Cytoplasmic Antibody (ANCA) status (defined by immunofluorescence and MPO/PR3 ANCA titres).
|
Between Week 0 and/or Week 12 and Week 24
|
Glucocorticoid-induced toxic effects
Time Frame: Up to Week 24
|
Glucocorticoid-induced toxic effects according to the Glucocorticoid Toxicity Index (GTI) between week 0 and week 24.
The GTI provides two GTI scores: the Cumulative Worsening Score (CWS) and the Aggregate Improvement Score (AIS).
The GTI-CWS, with potential scores ranging from 0-439, captures cumulative glucocorticoid toxicity regardless of whether it is permanent or transient.
The GTI-CWS can only increase or remain the same over time.
A higher score indicates higher glucocorticoid toxicity.
The GTI-AIS, with potential scores ranging from -346 to +439, captures both worsening and improvement in glucocorticoid toxicity.
New or worsening toxicities contribute a positive score and improvement in existing toxicities contributes a negative score.
A higher score indicates higher glucocorticoid toxicity.
|
Up to Week 24
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Salman Siddiqui, MBBS, Imperial College London
Study record dates
Study Major Dates
Study Start (Estimated)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Cardiovascular Diseases
- Vascular Diseases
- Skin Diseases
- Respiratory Tract Diseases
- Immune System Diseases
- Lymphoproliferative Disorders
- Lymphatic Diseases
- Autoimmune Diseases
- Lung Diseases
- Vasculitis
- Skin Diseases, Vascular
- Lung Diseases, Interstitial
- Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis
- Granuloma
- Granulomatosis with Polyangiitis
- Churg-Strauss Syndrome
- Systemic Vasculitis
Other Study ID Numbers
- 1007564
- 21HH7284 (Other Identifier: IMPERIAL)
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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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