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Calcineurin Inhibitor Sparing After Kidney Transplantation

2014-08-27 03:16:09 | BioPortfolio

Summary

Reducing drug side effects is a key issue in transplantation. One class of drugs commonly used, calcineurin inhibitors (CNIs), is associated with negative side effects, namely, toxicity to the transplanted kidney. In some patients, this toxicity is thought to be associated with loss of transplant function in those who have had their transplants for many years. The introduction of new immunosuppression medications however, has provided the opportunity to minimize or avoid CNIs, which may reduce the occurrence of toxicity to the kidney.

Description

It is clear that minimizing the use of CNIs may be beneficial to some or all kidney transplant recipients. The purpose of this study is to determine whether minimization of these CNI drugs will improve patient survival rates and long-term kidney function.

If the subject agrees to participate in this research project, they will be randomly assigned to one of two different immunosuppression drug combinations. All of the drugs used in this study are standard FDA Approved immunosuppressive drugs currently in use by transplant patients. It is unclear however, which combination provides a better long-term outcome.

If after six months of being on the study the subject has not experienced a rejection episode that excludes them from participating in the second phase of this study, they will asked whether or not they would like to continue the study. If they decide to participate in Phase II, there will be another randomization to one of two different immunosuppression drug combinations. This will involve either being assigned to a group that will have their CNI dose lowered or a group that will have their CNI drug stopped and replaced with a non-CNI drug called Sirolimus. Phase II begins at 6 months post-transplant and a second consent will be obtained for those who participate in Phase II.

Study Design

Allocation: Randomized, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

CNI Side Effects

Intervention

Cyclosporine & Cellcept, Prograf & Cellcept, Cyclosporine, Cellcept, & Prednisone, Prograf, Cellcept, & Prednisone, Low Dose CNI (Cyclosporine or FK) and Cellcept, Rapamune and Cellcept, Low dose CNI (CSA or FK), Rapamune, & Prednisone, Rapamune, Cellcept

Location

University of Minnesota
Minneapolis
Minnesota
United States
55414

Status

Recruiting

Source

University of Minnesota - Clinical and Translational Science Institute

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:16:09-0400

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Medical and Biotech [MESH] Definitions

A 17-KDa cytoplasmic PEPTIDYLPROLYL ISOMERASE involved in immunoregulation. It is a member of the cyclophilin family of proteins that binds to CYCLOSPORINE.

A cyclic undecapeptide from an extract of soil fungi. It is a powerful immunosupressant with a specific action on T-lymphocytes. It is used for the prophylaxis of graft rejection in organ and tissue transplantation. (From Martindale, The Extra Pharmacopoeia, 30th ed).

Members of a family of highly conserved proteins which are all cis-trans peptidyl-prolyl isomerases (PEPTIDYLPROLYL ISOMERASE). They bind the immunosuppressant drugs CYCLOSPORINE; TACROLIMUS and SIROLIMUS. They possess rotamase activity, which is inhibited by the immunosuppressant drugs that bind to them.

A cytochrome P-450 monooxygenase that is involved in an NADPH-dependent electron transport pathway by oxidizing a variety of structurally unrelated compounds, including STEROIDS; FATTY ACIDS; and XENOBIOTICS. This enzyme has clinical significance due to its ability to metabolize a diverse array of clinically important drugs such as CYCLOSPORINE; VERAPAMIL; and MIDAZOLAM. This enzyme also catalyzes the N-demethylation of ERYTHROMYCIN.

A synthetic anti-inflammatory glucocorticoid derived from CORTISONE. It is biologically inert and converted to PREDNISOLONE in the liver.

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