CEC/EPC and Cardiovascular Risk in Renal Transplant Recipients

Terminated

• Conditions: Cardiovascular Abnormalities; Cardiovascular Diseases; Transplantation, Kidney

• Registration Number: NCT00365833
• Lead Sponsor: University of Florida

Brief Summary

We believe that certain cells in the human body (Circulating Endothelial Cells and Endothelial Progenitor Cells) are related to risk of cardiovascular disease. It may be possible to measure levels of these cells in patients who have had a kidney transplant and predict their risk of developing cardiovascular disease.

Detailed Description

Coronary disease is one of the most common causes of morbidity and mortality in patients with known chronic renal insufficiency and those with end stage renal disease. Consequently, early detection with markers such as circulating endothelial cells and endothelial progenitor cells has been studied in order to identify vascular function and assess overall cardiovascular risk. Based on current research, there exists a notable increase in Circulating Endothelial Cells (CEC) and a reduction of Endothelial Progenitor Cells (EPC) with renal dysfunction due to endothelial damage. Therefore circulating endothelial cells are a marker for cardiovascular health.

Renal transplant patients also possess a higher cardiovascular risk than the general population, but have known improvement in survival as compared to patients with ESRD (End Stage Renal Disease). In addition, because of the excellent outcomes, graft and patient survival and even acute rejection are no longer very useful endpoints for clinical studies. The tolerability of transplant drug regimens and the impact of these regimes on cardiovascular health in kidney transplantation has become, consequently, a new focus of research. Currently, no clear long-term analysis has been fulfilled analyzing CEC or EPC in this group of patients. We hypothesize that CEC can serve as biological markers for cardiovascular risk assessment in cadaveric and living renal transplant patients. We eventually hope measurement of these cells can serve as an endpoint in determining cardiovascular outcome in renal transplant patients. Our present study is aimed to get an initial assessment of the kinetics of CEC and EPC in renal transplant recipients just prior to transplant and for the first two years post transplant.

Study Timeline

• Study Start: 2006-07
• Study First Submitted: 2006-08-17
• Study First Submitted QC: 2006-08-17
• Study First Posted: 2006-08-18
• Primary Completion: 2007-02
• Study Completion: 2007-02
• Status Verified: 2011-09
• Last Update Submitted: 2011-09-28
• Last Update Posted: 2011-09-30

Recruitment & Eligibility

• Status: TERMINATED
• Sex: All
• Target Recruitment: 8

Inclusion Criteria

• kidney transplant recipients
• kidney/pancreas transplant recipients
• age 18-80

Exclusion Criteria

• inability to return for follow-up visits
• multiple organ transplant other than listed above

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Cardiovascular Risk Profile	24 months	Cardiovascular Risk Profile is defined by calculated Framingham Model

Secondary Outcome Measures

Name	Time	Method
Rate of Graft Survival Post-Transplant	24 months	Measured by Kaplan-Meier analysis and Cox Proportional Hazard Models to correlate CEC and EPC to this outcome.
Rate of Cardiovascular Events Post-Transplant	24 months	Measured by Kaplan-Meier analysis and Cox Proportional Hazard Models to correlate CEC and EPC to this outcome.
Rate of Patient Survival Post-Transplant	24 months	Measured by Kaplan-Meier analysis and Cox Proportional Hazard Models to correlate CEC and EPC to this outcome.

Trial Locations

Locations (1)

University of Florida; 🇺🇸 Gainesville, Florida, United States