Safety and Efficacy of PEG-Encapsulated Islet Allografts Implanted in Type I Diabetic Recipients

Inclusion Criteria: Male or non-pregnant non-lactating female subjects > 20 years of age Diagnosed with insulin-dependent type I diabetes for at least 20 years BMI less than 28 kg/m2 Insulin requirement less than or equal to 0.7 U/kg/day HbA1c greater than or equal to 7.0 % Serum C-peptide concentration less than or equal to 0.5 ng/mL stimulated by an OGTT Female subjects with childbearing potential must have a negative serum pregnancy test prior to enrollment and must agree to use an effective contraceptive method during the study One year of stable diabetes care established in the PI's database without significant changes in insulin requirement or HbA1c or diabetic complication profile Exclusion Criteria: Diagnosis of type II diabetes or maturity onset diabetes of youth (MODY) Serum C-peptide greater than 0.5 ng/mL stimulated by OGTT Sustained hypertension greater than or equal to 100 mmHg diastolic and/or greater than or equal to 160 mmHg systolic History of myocardial infarction or current active cardiac disease Current active infection Significant renal dysfunction as indicated by GFR less than 80 mL/min/1.73 m2 and/or urinary albumin greater than 500 µg/mL Significant liver dysfunction as indicated by ALT or AST more than 3X the upper limit of normal Prior whole organ or islet cell transplant Concurrent immunosuppressive therapy Severe gastroparesis, severe peripheral neuropathy, diabetic foot ulcers, or prior amputations due to diabetic complications Any other active autoimmune disease other than autoimmune thyroid disease HIV, HBV or HCV positive status Uncontrolled or untreated proliferative retinopathy Known hypersensitivity or other intolerance to cyclosporine or the inactive ingredients in the product Behavioral activities that place the subject at risk in the opinion of the investigator Any significant concurrent disease, illness, or psychiatric disorder that would, in the opinion of the investigator, compromise subject safety or compliance, or interfere with consent, study participation, follow-up, or the interpretation of study results History of any kind of cancer other than skin cancers (except for melanoma which is exclusionary)