At a glance
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Sequential Islet Transplantation With Steroid Free Immunosuppression for Type 1 Diabetes
In Brief
A Phase 2 clinical trial evaluating islet transplantation and daclizumab - sirolimus - tacrolimus for Type 1 Diabetes and 2 related conditions. Completed, enrolled 14 participants across 1 site.
Detailed Summary
The restoration of endogenous insulin secretion carries significant hopes for shifting the paradigm of life long exogenous insulin therapy in selected groups of patients with type 1 diabetes(T1D). After decades of frustrating clinical attempts, the Edmonton group set up in 2000 new standards for islet transplantation in patients with brittle T1D by achieving insulin independence in 80 percent of patients. These seminal results have however proved much more difficult to duplicate than initially expected. This single center phase 2 clinical trial, duplicating the Edmonton protocol, is designed for confirming the consistent short term efficacy and safety of sequential islet allotransplantation with steroid free immunosuppression in patients with severe T1D.
Study Details
Timeline
Interventions
Islet transplantation consisted of up to three sequential fresh islet infusions within three months. Access to the portal vein was gained under general anesthesia by percutaneous catheterisation of a peripheral portal branch under ultrasound guidance or by surgical catheterisation of a small mesenteric vein.
Immunosuppressive consisted of Tacrolimus, target through level at 3-6 ng/ml, Sirolimus, target through level at 12-15 ng/ml for three months and at 7-10 ng/ml thereafter. A five-dose induction course of Daclizumab 1mg/Kg was administered biweekly beginning one hour prior to the first infusion