Clinical trial NCT00611702: Genomics of Chronic Renal Allograft Rejection (The GoCAR Study)
Official title: Genomics of Chronic Renal Allograft Rejection
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Kidney Transplantation
Keywords: ELISPOT
RT-PCR
Luminex
Genomics
Lead sponsor: National Institute of Allergy and Infectious Diseases (NIAID)
Sponsor class: NIH
First posted: 2008-02-11
Enrollment: 588
Sex: ALL
Minimum age (years): 18
Maximum age (years): 75
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Individuals receiving a kidney transplant and individuals who are donating a kidney

Brief summary: Doctors have had success preventing certain types of kidney transplant rejection by suppressing the immune system. However, an individual's genetic make-up and the strength of an immune response to a transplant may also determine whether a transplanted organ is rejected. The purpose of this study is to look at the genetic profile and immune response of people who have had kidney transplants and to correlate the findings with kidney transplant rejection episodes. Donor genetic profiles will also be studied and correlated with the recipient's information.

Detailed description: New immunosuppressive drugs have improved short-term transplant survival but have not affected long-term transplant survival. Rejection is caused by both immunological and non-immunological factors from both the donor and the recipient. Although the exact cause of chronic rejection is not known, it is associated with the presence of C4d, a degradation product of the antibody response cascade, and the presence of circulating donor-specific antibodies (DSAs). The purpose of this study is to determine the role of cell- and antibody-mediated responses in chronic rejection of transplants, to determine the gene expression profile associated with the development of chronic rejection, and to determine whether variants of specific genes cause susceptibility to rejection.

This is an observational study of people who will be receiving kidney transplants and participants will be followed for 2 years. Study visits for kidney transplant recipients will occur at study entry and at months 3, 6, 12, 18, and 24 after transplant. At these visits, adverse event assessment, rejection assessment, medication history questionnaire, and blood collection will occur. At some visits, a physical exam and a kidney biopsy will occur. Blood will also be collected from living kidney donors at the time of donation if both donor and recipient agree to be in the study. This study will be take place at 4 clinical sites: Mount Sinai School of Medicine, University of Wisconsin-Madison, Westmead Hospital, and Northwestern Memorial Hospital. Brigham and Women's Hospital and Massachusetts General Hospital will also participate in the study as central laboratories.

Eligibility criteria: Inclusion Criteria:

* Kidney transplant candidates from living or deceased donors
* Male or female, ages 18-75 years
* Subject must be able to understand and provide written informed consent
* Living Donors - Recipient also consents to participate in the study

Exclusion Criteria:

* Presence of Donor Specific Antibodies in living donor recipients prior to transplantation OR positive cross match according to site-specific technique in cadaveric donor recipients
* Recipients of multiple organ transplants, with the exception of kidney/pancreas transplants.
* Inability or unwillingness to comply with the study protocol.

Primary outcomes:
measure: Correlation of chronic rejection with patterns and intensity of recipient alloreactivity
timeFrame: Throughout study
measure: Correlation of chronic rejection with recipient gene expression profiles
timeFrame: Throughout study
measure: Correlation of chronic rejection with polymorphic variants of specific susceptibility genes in donor and recipient
timeFrame: Throughout study
Secondary outcomes:
measure: Correlation of the development of donor specific antibodies after transplant and/or the presence of C4d staining with patterns and intensity of recipient alloreactivity
timeFrame: Throughout study
measure: Correlation of the development of donor specific antibodies after transplant and/or the presence of C4d staining with recipient gene expression profiles
timeFrame: Throughout study
measure: Correlation of the development of donor-specific antibodies after transplant and/or the presence of C4d staining of peritubular basement membranes on renal biopsy with polymorphic variants of specific susceptibility genes in donor and recipient
timeFrame: Throughout study
measure: Correlation of the development of donor-specific antibodies after transplant and/or the presence of C4d staining of peritubular basement membranes on renal biopsy with chronic rejection
timeFrame: Throughout study
measure: Correlation of the development of donor-specific antibodies after transplant and/or the presence of C4d staining of peritubular basement membranes on renal biopsy allograft dysfunction as defined by the protocol
timeFrame: Throughout study
Other outcomes:
Locations:
city: Chicago
country: United States
facility: Northwestern Memorial Hospital
state: Illinois
city: Ann Arbor
country: United States
facility: University of Michigan
state: Michigan
city: New York
country: United States
facility: Mt. Sinai School of Medicine
state: New York
city: Madison
country: United States
facility: University of Wisconsin-Madison
state: Wisconsin
city: Sydney
country: Australia
facility: Westmead Hospital
state: New South Wales
Study officials:
affiliation: Division of Nephrology, Mt. Sinai School of Medicine
name: Barbara T. Murphy, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Vitalone MJ, O'Connell PJ, Wavamunno M, Fung CL, Chapman JR, Nankivell BJ. Transcriptome changes of chronic tubulointerstitial damage in early kidney transplantation. Transplantation. 2010 Mar 15;89(5):537-47. doi: 10.1097/TP.0b013e3181ca7389.
citation: Vitalone MJ, O'Connell PJ, Jimenez-Vera E, Yuksel A, Wavamunno M, Fung CL, Chapman JR, Nankivell BJ. Epithelial-to-mesenchymal transition in early transplant tubulointerstitial damage. J Am Soc Nephrol. 2008 Aug;19(8):1571-83. doi: 10.1681/ASN.2007050580. Epub 2008 May 14.
citation: Dinavahi R, George A, Tretin A, Akalin E, Ames S, Bromberg JS, Deboccardo G, Dipaola N, Lerner SM, Mehrotra A, Murphy BT, Nadasdy T, Paz-Artal E, Salomon DR, Schroppel B, Sehgal V, Sachidanandam R, Heeger PS. Antibodies reactive to non-HLA antigens in transplant glomerulopathy. J Am Soc Nephrol. 2011 Jun;22(6):1168-78. doi: 10.1681/ASN.2010111183. Epub 2011 May 12.
citation: Kruger B, Krick S, Dhillon N, Lerner SM, Ames S, Bromberg JS, Lin M, Walsh L, Vella J, Fischereder M, Kramer BK, Colvin RB, Heeger PS, Murphy BT, Schroppel B. Donor Toll-like receptor 4 contributes to ischemia and reperfusion injury following human kidney transplantation. Proc Natl Acad Sci U S A. 2009 Mar 3;106(9):3390-5. doi: 10.1073/pnas.0810169106. Epub 2009 Feb 13.
citation: Wavamunno MD, O'Connell PJ, Vitalone M, Fung CL, Allen RD, Chapman JR, Nankivell BJ. Transplant glomerulopathy: ultrastructural abnormalities occur early in longitudinal analysis of protocol biopsies. Am J Transplant. 2007 Dec;7(12):2757-68. doi: 10.1111/j.1600-6143.2007.01995.x. Epub 2007 Oct 6.
citation: Gurkan S, Luan Y, Dhillon N, Allam SR, Montague T, Bromberg JS, Ames S, Lerner S, Ebcioglu Z, Nair V, Dinavahi R, Sehgal V, Heeger P, Schroppel B, Murphy B. Immune reconstitution following rabbit antithymocyte globulin. Am J Transplant. 2010 Sep;10(9):2132-2141. doi: 10.1111/j.1600-6143.2010.03210.x.
citation: Farris AB, Adams CD, Brousaides N, Della Pelle PA, Collins AB, Moradi E, Smith RN, Grimm PC, Colvin RB. Morphometric and visual evaluation of fibrosis in renal biopsies. J Am Soc Nephrol. 2011 Jan;22(1):176-86. doi: 10.1681/ASN.2009091005. Epub 2010 Nov 29.
citation: Schroppel B, Kruger B, Walsh L, Yeung M, Harris S, Garrison K, Himmelfarb J, Lerner SM, Bromberg JS, Zhang PL, Bonventre JV, Wang Z, Farris AB, Colvin RB, Murphy BT, Vella JP. Tubular expression of KIM-1 does not predict delayed function after transplantation. J Am Soc Nephrol. 2010 Mar;21(3):536-42. doi: 10.1681/ASN.2009040390. Epub 2009 Dec 17.
citation: Luan Y, Mosheir E, Menon MC, Wilson D, Woytovich C, Ochando J, Murphy B. Monocytic myeloid-derived suppressor cells accumulate in renal transplant patients and mediate CD4(+) Foxp3(+) Treg expansion. Am J Transplant. 2013 Dec;13(12):3123-31. doi: 10.1111/ajt.12461. Epub 2013 Sep 18.
citation: O'Connell PJ, Zhang W, Menon MC, Yi Z, Schroppel B, Gallon L, Luan Y, Rosales IA, Ge Y, Losic B, Xi C, Woytovich C, Keung KL, Wei C, Greene I, Overbey J, Bagiella E, Najafian N, Samaniego M, Djamali A, Alexander SI, Nankivell BJ, Chapman JR, Smith RN, Colvin R, Murphy B. Biopsy transcriptome expression profiling to identify kidney transplants at risk of chronic injury: a multicentre, prospective study. Lancet. 2016 Sep 3;388(10048):983-93. doi: 10.1016/S0140-6736(16)30826-1. Epub 2016 Jul 22.