NCT00571818

The Prospective Evaluation of Pancreatic Function in Pancreas Transplant Recipients

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 31 (actual)
• Sponsor: University of Nebraska · Academic / Other
• Sex: All
• Age: 19 Years – 65 Years
• Healthy volunteers: Accepted

Summary

The purpose of this study is to understand how the pancreas functions after transplantation and particularly why high blood sugar levels develop. It will also analyze the effect of the medicines used to prevent rejection on blood sugar levels. The hypothesis to be tested is that hyperglycemia more than six months after successful pancreas transplant results from a defect in insulin secretion, insulin resistance, or both.

Detailed description

Type I diabetes mellitus (DM1) is an autoimmune disease characterized by destruction of the insulin-secreting beta cells. Insulin replacement has been the cornerstone of therapy for patients with DM1. However, pancreas transplantation, utilizing the whole pancreas as a means to replace the destroyed beta cells, has become a therapeutic alternative. The goal of pancreas transplantation is the establishment of long-term euglycemia, thereby preventing or allowing for the repair of end-organ complications. Maintenance of the pancreas allograft over many years remains the goal in following pancreas transplant recipients over time. The onset of hyperglycemia less than one year after transplant is usually due to issues of surgical technique or acute rejection. However, the onset of hyperglycemia after one year of pancreas transplant is more problematic because the underlying causes are less clear and have been less well characterized. Currently, there is no protocol for definitively identifying the causes of hyperglycemia in pancreas transplant recipients over one year. This project will systematically characterize beta cell function and peripheral tissue response to insulin in patients who have received an earlier successful pancreas transplant who have developed hyperglycemia.

Conditions

• Transplant
• Diabetes

Interventions

Type	Name	Description
PROCEDURE	Oral glucose tolerance test	test done over 2 hours
PROCEDURE	IV Glucose Tolerance Test	Done over 4 hours

Timeline

• Start date: 2000-11-01
• Primary completion: 2008-03-01
• Completion: 2010-06-01
• First posted: 2007-12-12
• Last updated: 2023-10-10

Locations

1 site across 1 country: United States