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Islet Cell Transplantation Alone and CD34+ Enriched Donor Bone Marrow Cell Infusion in Patients With Type 1 Diabetes Mellitus; Steroid Free Regimen

2014-08-27 03:45:09 | BioPortfolio

Summary

SPECIFIC AIMS:

- To reverse hyperglycemia and insulin dependency in patients with Type 1 diabetes mellitus by islet cell transplantation.

- To induce a state of donor specific tolerance and eliminate the need for continuous immunosuppressive therapy by simultaneous transplantation of donor bone marrow cells with islets and utilization of the monoclonal antibody Campath-1H for induction of Immunosuppression.

- To assess long-term function of successful islet cell transplants in patients with Type 1 diabetes mellitus.

- To determine whether the natural history of the microvascular, macrovascular and neuropathic complications are altered following successful transplantation of islet

Description

In our current protocol (IRB #2000/0024) the immunosuppressive regimen, comprised of induction with daclizumab and maintenance therapy with sirolimus and tacrolimus, has been combined with the infusion of CD34+ enriched donor bone marrow stem cells in an attempt to create a chimeric state and hence induce donor tolerance. This strategy was tested by evaluating graft survival following the removal of all immunosuppressive medication after one year.

Study Design

Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Type 1 Diabetes Mellitus

Intervention

Islet Transplantation

Location

Diabetes Research Institute
Miami
Florida
United States
33136

Status

Active, not recruiting

Source

University of Miami

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:45:09-0400

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Medical and Biotech [MESH] Definitions

A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.

The time period before the development of symptomatic diabetes. For example, certain risk factors can be observed in subjects who subsequently develop INSULIN RESISTANCE as in type 2 diabetes (DIABETES MELLITUS, TYPE 2).

A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.

A type of diabetes mellitus that is characterized by severe INSULIN RESISTANCE and LIPODYSTROPHY. The latter may be generalized, partial, acquired, or congenital (LIPODYSTROPHY, CONGENITAL GENERALIZED).

A life-threatening complication of diabetes mellitus, primarily of TYPE 1 DIABETES MELLITUS with severe INSULIN deficiency and extreme HYPERGLYCEMIA. It is characterized by excessive LIPOLYSIS, oxidation of FATTY ACIDS, production of KETONE BODIES, a sweet smell to the breath (KETOSIS;) DEHYDRATION; and depressed consciousness leading to COMA.

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