A Randomized, Double-Blind, Placebo-Controlled Study of Belimumab and Rituximab Combination Therapy for the Treatment of Diffuse Cutaneous Systemic Sclerosis
Hospital for Special Surgery, New York
Summary
This is a 52 week, single center, randomized, double-blind, placebo-controlled study. After patients maintain a stable dose of Mycophenolate Mofetil (MMF) for at least 1 month, they will be randomized to treatment with either Belimumab \& Rituximab or placebo.Patients in both groups will be on background MMF for the entirety of the study. Belimumab will be administered subcutaneously and Rituximab intravenously. Placebo injections and infusions will be of normal saline. Randomization will be done in a 2:1 manner to favor the treatment group. It is hypothesized that that Rituximab and Belimumab combination therapy with Mycophenolate Mofetil background therapy will improve fibrosis in SSc skin when compared to treatment with placebo and Mycophenolate Mofetil in a group of patients with early dcSSc.
Description
The specific objectives of this study are to: 1. Determine whether rituximab/belimumab/mmf is safe and tolerable in the treatment of patients with early diffuse cutaneous (dc)SSc when compared to patients treated with placebo/placebo/mmf, as assessed by comparison of adverse and serious adverse effects. In this study stand of care will be protocolized as mycophenolate mofetil. 2. Determine whether rituximab/belimumab/mmf is more effective than placebo/placebo/mmf, as measured by change in CRISS, which is a composite outcome measure provisionally endorsed by the ACR for scleroderma clinical tr…
Eligibility
- Age range
- 18–80 years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: 1. Age greater than or equal to eighteen years and less than or equal to 80. 2. Classification of systemic sclerosis (SSc), as defined using the 2013 American College of Rheumatology/European Union League Against Rheumatism classification of SSc. 3. Diagnosis of dcSSc, as defined by LeRoy and Medsger. 4. Disease duration of less than or equal to 3 years as defined by the date of onset of the first non-Raynaud's symptom. 5. A modified Rodnan Skin Score (mRSS) of \> 14 Exclusion Criteria: 1. Inability to render informed consent in accordance with institutional guidelines.…
Interventions
- DrugBelimumab
Belimumab 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. The background above provides a robust rationale for the investigation of belimumab in the treatment of dcSSc.
- DrugRituximab
Rituxan® (rituximab) is a genetically engineered IgG1 kappa chimeric murine/human monoclonal antibody containing murine light- and heavy-chain variable region sequences and human constant region sequences. The antibody reacts specifically with the CD20 antigen found on the surface of malignant and normal B cells, and established B cell lines. Studies have shown that rituximab binds via its Fc domain to human complement and lyses lymphoid B cell lines by complement dependent cytotoxicity through the induction of apoptosis and via antibody-dependent cell mediated cytotoxicity. Rituximab is approved by the U.S. Food and Drug Administration (FDA) to treat some types of cancer, rheumatoid arthritis and vasculitis.
- OtherPlacebo Subcutaneous Injection
Normal Saline
- OtherPlacebo Infusion
Normal Saline
- Drug
Location
- Hospital for Special SurgeryNew York, New York