Belimumab in Remission of VASculitis (BREVAS)
Vasculitis
About this trial
This is an interventional treatment trial for Vasculitis focused on measuring Wegener's Granulomatosis, anti-MPO, WG, Belimumab, GPA, anti-proteinase 3, anti-neutrophil cytoplasmic antibody, anti-myeloperoxidase, Granulomatosis with polyangiitis, Vasculitis, Autoimmune Diseases, Microscopic Polyangiitis, anti-PR3, ANCA, MPA, Systemic Vasculitis
Eligibility Criteria
Key Inclusion Criteria:
- Clinical diagnosis Wegener's granulomatosis or microscopic polyangiitis by Chapel Hill criteria.
- Disease flare in the past 26 weeks requiring treatment with high dose corticosteroids and 1 of the following medications: rituximab, oral cyclophosphamide OR IV cyclophosphamide.
- Tested positive for anti-proteinase 3 (anti-PR3) or anti-myeloperoxidase (anti-MPO) antibodies at any time prior to enrollment.
- Achieve remission no more than 26 weeks after first dose of induction treatment. Remission is defined as a Birmingham Vasculitis Activity (BVAS) score of 0 and receiving less than 10 mg/day of oral prednisone (or equivalent) on 2 consecutive visits 21 to 35 days apart.
- Maintenance therapy on this study must start no more than 2 weeks after confirmation of remission.
Key Exclusion Criteria:
- Pregnant or nursing.
- Receipt of a B cell targeted therapy (other than rituximab) at anytime
- Receipt of an investigational biological agent within the past 60 days.
- Required management of acute or chronic infections within the past 60 days.
- Current drug or alcohol abuse or dependence.
- Current or past positive test for human immunodeficiency virus (HIV), hepatitis B, or hepatitis C.
- History of severe allergic reaction to contrast agents or biological medicines.
Sites / Locations
- GSK Investigational Site
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Arms of the Study
Arm 1
Arm 2
Placebo Comparator
Experimental
Placebo plus azathioprine
Belimumab 10 mg/kg plus azathioprine
Placebo IV plus oral azathioprine 2 mg/kg/day; placebo administered on Days 0, 14, 28, and then every 28 days until the end of the study. If the results in the double-blind period show that belimumab is safe and effective, then participants have the option to receive treatment with belimumab in a 6-month open-label extension phase. Placebo patients who opt to participate in the extension will receive belimumab 10 mg/kg IV every 28 days plus oral azathioprine 2 mg/kg/day for an additional 6 months.
Belimumab 10 mg/kg IV plus oral azathioprine 2 mg/kg/day; belimumab administered on Days 0, 14, 28, and then every 28 days until the end of the study. If the results in the double-blind period show that belimumab is safe and effective, then participants have the option to continue treatment with belimumab in a 6-month open-label extension phase. Patients who opt to participate in the extension will continue to receive belimumab 10 mg/kg IV every 28 plus oral azathioprine 2 mg/kg/day days for an additional 6 months.