NCT00905515

Brief Summary

This study is designed to optimize calcineurin immunosuppressive regimens and evaluate immunological and non-immunological markers that may explain mechanistic differences in these agents and their effects.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
63

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Aug 2003

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 1, 2003

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2008

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2008

Completed
11 months until next milestone

First Submitted

Initial submission to the registry

May 18, 2009

Completed
2 days until next milestone

First Posted

Study publicly available on registry

May 20, 2009

Completed
3.7 years until next milestone

Results Posted

Study results publicly available

February 11, 2013

Completed
Last Updated

September 7, 2023

Status Verified

September 1, 2023

Enrollment Period

4.9 years

First QC Date

May 18, 2009

Results QC Date

October 22, 2012

Last Update Submit

September 5, 2023

Conditions

Keywords

Kidney TransplantationImmunosuppressive Agents

Outcome Measures

Primary Outcomes (3)

  • Renal Function in Patients Converted From Cyclosporine to Prograf

    3 years

  • Optimal Dose of Calcineurin Inhibitor in Long-term Maintenance Kidney Transplant Patients

    3 years

  • Change in Risk Factors for Cardiovascular Morbidity and Chronic Graft Dysfunction as Evidenced by Blood Levels of Homocysteine

    3 years

Study Arms (3)

Control Group Cyclosporine

ACTIVE COMPARATOR

Maintain on Cyclosporine (CsA) at target trough level of 50-250 ng/mL.

Drug: cyclosporine

Low Trough Level Prograf Group

ACTIVE COMPARATOR

Convert to Prograf (TAC) at target trough levels of 3.0-5.9 ng/mL.

Drug: Prograf (Tacrolimus)

High Trough Level Prograf Group

ACTIVE COMPARATOR

Convert to TAC at target trough levels of 6.0-8.9 ng/mL.

Drug: Prograf (Tacrolimus)

Interventions

Maintain on cyclosporine at target trough level of 50-250 ng/mL.

Also known as: Cyclosporine/Neoral®/Sandimmune®/Gengraf®
Control Group Cyclosporine

Convert to Prograf at target trough levels of 3.0-5.9 ng/mL (Arm 2) or target trough levels of 6.0-8.9 ng/mL (Arm 3).

Also known as: Tacrolimus/Prograf®/FK506
High Trough Level Prograf GroupLow Trough Level Prograf Group

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient is the recipient of a cadervic or living donor renal transplant.
  • Patient was 18 years of age at time of transplant.
  • Patient is at least 6 months post-transplant.
  • Patient has been on a cyclosporine-based immunosuppressive regimen since the transplant.
  • Patient has a functioning allograft and a Cockcroft/Gault estimate of creatinine clearance \>or= 35 mL/min within four weeks prior to randomization.
  • Patient or legal guardian has signed and dated an Institutional Review Board (IRB) approved informed consent document and is willing and able to follow study procedures.
  • Females are not pregnant and agree to practice effective birth control while receiving immunosuppressant medication.

You may not qualify if:

  • Patient is the recipient of a solid organ transplant other than the kidney.
  • Patient experienced biopsy-confirmed, acute rejection, (Banff 97 criteria)within 3 months before randomization that required treatment, which is defined as antilymphocyte therapy, corticosteroids, or an increase in the number or dose of immunosuppressant medication.
  • Patient has recurrence of primary renal disease, or de novo renal disease.
  • Patient has a urine protein of \> 1.5g/24 hours or two successive urinalyses sent to and reported by the laboratory indicating albuminuria greater than 2+ within 6 months prior to enrollment.
  • Patient has an estimated creatinine clearance \< 35 mL/min calculated using Cockcroft/Gault formula within four weeks prior to randomization.
  • Patient has changed adjunctive immunosuppressant therapy within one month if randomization.
  • Patient is pregnant or lactating.
  • Patient is a known carrier of any of the HIV viruses.
  • Patient has a known or suspected malignancy (except for treated squamous or basal cell skin cancers) \< 5 years before randomization or a history of post-transplant lymphoproliferative disease (PTLD).
  • Patient has a known hypersensitivity to tacrolimus, or any of the excipients of the drug.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Brody School of Medicine at East Carolina University

Greenville, North Carolina, 27834, United States

Location

Related Publications (2)

  • Dharnidharka VR, Kwon C, Stevens G. Serum cystatin C is superior to serum creatinine as a marker of kidney function: a meta-analysis. Am J Kidney Dis. 2002 Aug;40(2):221-6. doi: 10.1053/ajkd.2002.34487.

    PMID: 12148093BACKGROUND
  • Pirsch JD, Miller J, Deierhoi MH, Vincenti F, Filo RS. A comparison of tacrolimus (FK506) and cyclosporine for immunosuppression after cadaveric renal transplantation. FK506 Kidney Transplant Study Group. Transplantation. 1997 Apr 15;63(7):977-83. doi: 10.1097/00007890-199704150-00013.

    PMID: 9112351BACKGROUND

MeSH Terms

Interventions

CyclosporineTacrolimus

Intervention Hierarchy (Ancestors)

CyclosporinsPeptides, CyclicMacrocyclic CompoundsPolycyclic CompoundsPeptidesAmino Acids, Peptides, and ProteinsMacrolidesLactonesOrganic Chemicals

Results Point of Contact

Title
Director of Clinical Trials
Organization
East Carolina University

Study Officials

  • Paul Bolin, MD

    East Carolina University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chair of Internal Medicine

Study Record Dates

First Submitted

May 18, 2009

First Posted

May 20, 2009

Study Start

August 1, 2003

Primary Completion

July 1, 2008

Study Completion

July 1, 2008

Last Updated

September 7, 2023

Results First Posted

February 11, 2013

Record last verified: 2023-09

Locations