Efficacy and Safety of IgPro10 in Adults With Systemic Sclerosis (SSc)

Exclusion Criteria

• •Primary rheumatic autoimmune disease other than dcSSc, including but not limited to rheumatoid arthritis, systemic lupus erythematosus, mixed connective tissue disorder, polymyositis, and dermatomyositis, as determined by the investigator Note: Subjects with fibromyalgia, secondary Sjogren's syndrome, and scleroderma-associated myopathy or myositis at Screening are not excluded
• •Positive anti-centromere autoantibodies at Screening
• •Evidence of severe chronic kidney disease with estimated glomerular filtration rate \< 45 mL/min/1.73 m2 (as calculated by the Chronic Kidney Disease Epidemiology Collaboration equation) or receiving dialysis. Additionally, subjects with current confirmed diagnosis of diabetes mellitus and requiring medication, with eGFR \< 90 mL/min/1.73m2 will be excluded from the study.
• •History of documented thrombotic episode eg, PE, DVT, myocardial infarction, thromboembolic stroke at any time Note: past superficial thrombophlebitis more than two years from Screening is not exclusionary
• •Documented thrombophilic abnormalities including blood hyperviscosity, protein S or protein C deficiency, anti-thrombin-3 deficiency, plasminogen deficiency, antiphospholipid syndrome, Factor V Leiden mutation, dysfibrinogenemia, or prothrombin G20210A mutation
• •Greater than 3 specified current risk factors for TEEs (documented and currents conditions): atrial fibrillation, coronary disease, diabetes mellitus, dyslipidemia, hypertension, obesity (Body Mass Index ≥ 30 kg/m2), recent significant trauma, and immobility (wheelchair-bound or bedridden)
• •Ongoing active serious infection at Screening (including, but not limited to, pneumonia, bacteremia/septicemia, osteomyelitis/septic arthritis, bacterial meningitis, or visceral abscess)
• •Malignancy in the past 2 years, except for non-melanoma skin cancer, cervical carcinoma in situ, or other in situ cancer if it has been excised and treated within in the past year
• •Known hypoalbuminemia, protein-losing enteropathies, and any proteinuria (defined by total urine protein concentration \> 0.2 g/L)
• •Known IgA deficiency or serum IgA level \< 5% lower limit of normal