At a glance
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Belimumab for the Treatment of Diffuse Cutaneous Systemic Sclerosis: A Phase 2a, Single-centered, Randomized, Placebo-controlled, Double-blind, Proof-of-concept Pilot Study.
In Brief
A Phase 2 clinical trial evaluating Belimumab, Mycophenolate Mofetil, and 1 other intervention for Systemic Sclerosis. Completed, enrolled 20 participants across 1 site.
Detailed Summary
This is a 48 week, phase IIa, single center, randomized, double-blind, placebo-controlled, proof-of-concept pilot study. All participants will first be treated with mycophenolate mofetil (MMF, Cellcept) and titrated up to a dose of 2 grams/day. Following this period, half will be given either a belimumab (Benlysta®) or placebo intravenous infusion to treat early diffuse cutaneous systemic sclerosis. Belimumab/MMF is expected to improve disease activity measured by an improvement in skin thickening and stability of pulmonary function test measurements when compared to patients treated with placebo/MMF.
Study Details
Timeline
Interventions
Belimumab (Benlysta®) decreases B-Cell survival and has been FDA approved for the treatment of systemic lupus erythematosus, another rheumatic autoimmune disease. Belimumab is a recombinant, fully human monoclonal antibody; it binds to the soluble human B lymphocyte stimulator (BLyS) with high affinity and inhibits its biologic activity. Prior research provides a robust rationale for the investigation of belimumab in combination with MMF (Cellcept ®) for the treatment of early diffuse cutaneous systemic sclerosis.
Patients received background MMF therapy, some who were naive to MMF were titrated up to 1,000 mg twice daily and others had been receiving MMF at \<2,000 mg/day for \<3 months. MMF was chosen so that background therapy would be uniform and not a further source of variability in the small study.
Infusion of normal saline