This study will observe donor derived cell free DNA percentages (via the Allosure test) in combined kidney-pancreas transplant recipients to establish both stable and dysfunctional Allosure assay levels
Simultaneous kidney-pancreas transplantation is the optimal treatment for select patients with type 1 diabetes and kidney failure. Limited biomarkers are utilized to monitor the health of the allografts. For kidney transplantation serum creatinine remains the most commonly monitored biomarker; for the pancreas allograft blood glucose and serum amylase and lipase are measured. However, these biomarkers are imprecise and non-specific for rejection. In kidney transplantation cell free donor derived DNA at of value of \>1% has emerged as an effective immune monitoring tool as a marker for renal allograft rejection and injury. Thus far, a discriminatory donor derived cell free DNA value for a stable and rejecting allografts has not been established for recipients of combined kidney-pancreas transplants. Study aim will be to help establish a normal range of donor derived cell free DNA in stable kidney-pancreas graft function in combined kidney pancreas transplant recipients while determining changes in cell free DNA in kidney-pancreas recipients with biopsy proven allograft rejection.
Study Type
OBSERVATIONAL
Enrollment
13
We are obtaining samples for donor derived cell free DNA in an observational manner. There is no intervention in this study
Washington University
St Louis, Missouri, United States
DD-cfDNA level
determine level of donor derived cell free DNA from SPK patients
Time frame: 1 year
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