Study Comparing Effect On Carotid Atherosclerosis Following Conversion From Tacrolimus To Sirolimus Post-Transplant In Kidney Transplant Patients

Summary

The purpose of this study is to determine whether immunosuppression by tacrolimus, mycophenolate mofetil, and prednisone compared to conversion to sirolimus, mycophenolate mofetil, and prednisone affect the progression of atherosclerosis in renal transplant recipients.

Conditions

• Atherosclerosis
• Kidney Failure

Interventions

DRUG

tacrolimus

The daily dosage and formulation for each study treatment will be chosen by the investigator as medically appropriate for each individual subject, in order to achieve the target levels specified in the protocol TAC should be initiated within 24 hours before or after transplantation or within 14 days of transplantation as per local standard of care and tapered to a target trough level of 3-10 ng/mL by the Pre-Conversion visit at month 3-4 post-transplantation. The target trough level of TAC will be maintained at 3-10 ng/mL through to the end of the study.

DRUG

mycophenolate mofetil

The daily dosage and formulation for each study treatment will be chosen by the investigator as medically appropriate for each individual subject, in order to achieve the target levels specified in the protocol MMF or MPS should be initiated within 24 hours before or after transplantation or within 14 days of transplantation per local standard of care and tapered to a minimum oral dose of MMF ≥ 500 mg/day or MPS ≥ 360 mg/day by the Pre-Conversion visit at month 3-4 post-transplantation. At the discretion of the investigator, MMF may be changed to MPS, or MPS may be changed to MMF. MMF is to be continued at ≥ 500 mg/day dose or MPS is to be continued at ≥ 360 mg/day dose through to the end of study.

DRUG

prednisone

The daily dosage and formulation for each study treatment will be chosen by the investigator as medically appropriate for each individual subject, in order to achieve the target levels specified in the protocol CCS should be initiated within 24 hours before or after transplantation or within 14 days of transplantation per local standard of care and tapered to a minimum of 5 mg/day of prednisone orally or the alternate day equivalent by the Pre-Conversion visit at month 3-4 post-transplant. Continue administration of prednisone as per local standard of care to a minimum dose of 2.5 mg/day or alternate day equivalent dose to the end of the study. Withdrawal of CCS is prohibited.

DRUG

sirolimus

The daily dosage and formulation for each study treatment will be chosen by the investigator as medically appropriate for each individual subject, in order to achieve the target levels specified in the protocol. On study Day 1 Conversion, the daily dose of TAC will not be taken, and SRL is initiated as a single 5-10 mg loading dose, followed by 3 mg/day on subsequent days, adjusted to maintain a SRL target trough level of 8-15 ng/mL through to month 24 post-transplant, then 5-12 ng/mL to the end of month 36 post-transplant.

DRUG

tacrolimus

The daily dosage and formulation for each study treatment will be chosen by the investigator as medically appropriate for each individual subject, in order to achieve the target levels specified in the protocol TAC should be initiated within 24 hours before or after transplantation or within 14 days of transplantation as per local standard of care and tapered to a target trough level of 3-10 ng/mL by the Pre-Conversion visit at month 3-4 post-transplantation. Reintroduction of TAC or introduction of CsA is not permitted in the SRL Therapy group.

DRUG

mycophenolate mofetil

The daily dosage and formulation for each study treatment will be chosen by the investigator as medically appropriate for each individual subject, in order to achieve the target levels specified in the protocol MMF or MPS should be initiated within 24 hours before or after transplantation or within 14 days of transplantation per local standard of care and tapered to a minimum oral dose of MMF ≥ 500 mg/day or MPS ≥ 360 mg/day by the Pre-Conversion visit at month 3-4 post-transplantation. At the discretion of the investigator, MMF may be changed to MPS, or MPS may be changed to MMF. MMF is to be continued at ≥ 500 mg/day dose or MPS is to be continued at ≥ 360 mg/day dose through to the end of study.

DRUG

prednisone

The daily dosage and formulation for each study treatment will be chosen by the investigator as medically appropriate for each individual subject, in order to achieve the target levels specified in the protocol CCS should be initiated within 24 hours before or after transplantation or within 14 days of transplantation per local standard of care and tapered to a minimum of 5 mg/day of prednisone orally or the alternate day equivalent by the Pre-Conversion visit at month 3-4 post-transplant. Continue administration of prednisone as per local standard of care to a minimum dose of 2.5 mg/day or alternate day equivalent dose to the end of the study. Withdrawal of CCS is prohibited.

Sponsors & Collaborators

• Pfizer

  lead INDUSTRY

Principal Investigators

• Pfizer CT.gov Call Center · Pfizer

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

35 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2006-04-30

Primary Completion

2010-12-31

Completion

2012-01-31

Countries

• United States
• Canada

Study Locations