This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Islet transplantation has been investigated as a treatment for Type 1 diabetes mellitus in selected patients with inadequate glucose control despite insulin therapy. However, the perennial hope that such an approach would result in long-term freedom from the need for exogenous insulin, with stabilization of the secondary complications of diabetes, has failed to materialize in practice. Of the 267 allografts transplanted since 1990, only 12.4 percent have resulted in insulin independence for periods of more than one week, and only 8.2 percent have done so for periods of more than one year. In the majority of these procedures, the regimen of immunosuppression consisted of antibody induction with an antilymphocyte globulin combined with cyclosporine, azathioprine, and glucocorticoids. The published observations by Shapiro, et al. from Edmonton, from a series of seven consecutive subjects with Type 1 diabetes, indicate that islet transplantation can result in insulin independence with excellent metabolic control when glucocorticoid-free immunosuppression is combined with the infusion of an adequate islet mass. In that series, all seven subjects quickly attained sustained insulin independence after percutaneous transhepatic portal vein transplantation of islets. All recipients required islets from two donor pancreases, and one required a third transplant from two donors to achieve sustained insulin independence. Nearly all donor pancreata were previously rejected a s suitable for whole organ transplant before being subject to the islet isolation procedures. There were no further episodes of hypoglycemic coma following transplant. Complications were minor, and there were no significant increases in lipid concentrations during follow-up. In an update to this published report a total of 10 consecutive subjects have now remained insulin independent following islet cell transplant and use of a glucocorticoid-free immunosuppressive protocol that includes sirolimus, low-dose tacrolimus, and a monoclonal antibody against the interleukin-2 receptor (daclizumab). This multi-center feasibility study is designed to determine the reproducibility of the preliminary success obtained at a single center (Shapiro, et al., University of Alberta in Edmonton). This will be determined by providing the participating centers with training and standardized criteria and procedures for subject selection, cadaveric donor qualifications, islet cell processing, islet transplantation, and post-transplant treatment regimens. A total of 40 subjects at up to 10 centers are to be enrolled under this protocol. The duration of follow-up is intended to last for 1 year after the second (or final) transplant and the study should last about 2 years. The schedule of follow-up visits and evaluations.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR001066-29
Application #
7374702
Study Section
National Center for Research Resources Initial Review Group (RIRG)
Project Start
2005-12-01
Project End
2006-11-30
Budget Start
2005-12-01
Budget End
2006-11-30
Support Year
29
Fiscal Year
2006
Total Cost
$410
Indirect Cost
Name
Massachusetts General Hospital
Department
Type
DUNS #
073130411
City
Boston
State
MA
Country
United States
Zip Code
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Foldyna, Borek; Fourman, Lindsay T; Lu, Michael T et al. (2018) Sex Differences in Subclinical Coronary Atherosclerotic Plaque Among Individuals With HIV on Antiretroviral Therapy. J Acquir Immune Defic Syndr 78:421-428
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