NCT00857844

Brief Summary

The purpose of this study is to determine the relationship between genomic variants of components of the renin-angiotensin system and the development of kidney problems due to Calcineurin-inhibitors post liver transplant.Also the investigator will evaluate the relationship between chronic renal failure post liver transplant and the risk of death. A sample of blood and urine wil be examined to see how the patient's genes are arranged in order to determine the difference in genes between people which may explain who will develop chronic renal failure after having received a liver transplant. The results may help us classify patients according to their risk and allow us to target their treatment to their individual need. In addition, it may ultimately lead to treatments that slows or prevents the development of chronic rejection.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
207

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jul 2007

Longer than P75 for all trials

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

July 1, 2007

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2008

Completed
5 months until next milestone

First Submitted

Initial submission to the registry

March 6, 2009

Completed
3 days until next milestone

First Posted

Study publicly available on registry

March 9, 2009

Completed
3.1 years until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2012

Completed
Last Updated

May 3, 2013

Status Verified

May 1, 2013

Enrollment Period

1.3 years

First QC Date

March 6, 2009

Last Update Submit

May 1, 2013

Conditions

Keywords

Chronic NephrotoxicityKidney dysfunction post liver transplantUrinary biomarkers of chronic nephrotoxicity from CI

Outcome Measures

Primary Outcomes (1)

  • To investigate, in liver transplant patients, the role of urinary biomarkers as indirect indices of chronic nephrotoxicity from CI and associate, where possible, urinary biomarkers to genomic variants of the angiotensin converting

    Blood draw (20cc) and urine collection (80cc).

    At time of enrollment

Secondary Outcomes (2)

  • The study will also evaluate if specific demographic characteristics are associated with an increased risk of nephrotoxic damage from CI.

    At time of enrollment

  • Organ transplant tolerance in subjects who are currently using immunosuppressant medications.

    One additional blood draw - follow-up time point

Study Arms (3)

Group 1

Normal GFR (\>90ml/min/1.73m2). Stage I CKD

Group 2

GFR between 30-59ml/min/1.73m2. Stage III CKD

Group 3

GFR between 15-29ml/min/1.72m2. Stage IV CKD

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

This study will be conducted in liver transplant recipients. We are planning to collect data and genotyping in 650 liver transplant recipients. Patients who satisfy the following inclusion/exclusion criteria will be eligible for the study:

You may qualify if:

  • Informed consent
  • Males and females \> 18 years old
  • Liver transplant recipients who have received a liver transplant at least 6 months ago
  • Liver transplant recipients receiving a maintenance immunosuppression.

You may not qualify if:

  • Legal incapacity and/or other circumstances rendering the patient unable to understand the nature, scope and possible consequences of the study
  • Pre-existing known kidney disease before liver transplantation
  • Multi-organ transplant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Northwestern Memorial Hospital

Chicago, Illinois, 60611, United States

Location

Related Publications (37)

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Biospecimen

Retention: SAMPLES WITH DNA

* Urine will be collected from all patients in the 3 groups and analyzed for biomarkers of interstitial fibrosis and proximal tubule injury. Specific biomarkers that will be tested are: urinary TGF-beta1, kidney injury molecule-1 and angiotensinogen. Urinary biomarkers will be normalized to creatinine and analyzed using an ELISA assay. * An additional 18mls of blood will be collected. This blood will be used to study organ transplant tolerance in subjects who are currently using immunosuppressant medications.

Study Officials

  • Lorenzo Gallon, M.D.

    Northwestern University, Northwestern Memorial Hospital, Northwestern Medical Faculty Foundation

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 6, 2009

First Posted

March 9, 2009

Study Start

July 1, 2007

Primary Completion

October 1, 2008

Study Completion

May 1, 2012

Last Updated

May 3, 2013

Record last verified: 2013-05

Locations