Treg Adoptive Therapy for Subclinical Inflammation in Kidney Transplantation

Summary

The purpose of this study is to test the safety of the experimental therapy of a single infusion of Regulatory T cells (Tregs). The investigators want to find out what effects, good or bad, Tregs will have on the kidney transplant patients. There are different types of T cells. This study uses Regulatory T cells (Tregs), which are found in the blood and are part of the immune system that stops other immune cells from working. Tregs help to turn off the immune system after other immune cells have finished tackling outside infections, and Tregs keep the immune system in check so that the body does not attack itself. The researchers are hoping that, by giving an infusion of Tregs that the attack on the kidney can be stopped and kidney function will be stabilized. It is not known if the Treg experimental therapy can stop the inflammation in the kidney. In this study, the researchers will take some of Tregs from the patient, multiply them in the laboratory, and then infuse them back into the patient. The procedure used to multiply Tregs is an experimental process performed in the laboratory. Similar procedures done with mice have been shown to reverse inflammation but it is not known whether the results will be the same in humans. This therapy has not yet been done in humans outside of a research study.

Timeline

Start

2014-03

Primary completion

2016-12-31

Completion

2016-12-31

Publications

• Results Nankivell BJ, Borrows RJ, Fung CL, O'Connell PJ, Allen RD, Chapman JR. Natural history, risk factors, and impact of subclinical rejection in kidney transplantation. Transplantation. 2004 Jul 27;78(2):242-9. doi: 10.1097/01.tp.0000128167.60172.cc.
• Results Kee TY, Chapman JR, O'Connell PJ, Fung CL, Allen RD, Kable K, Vitalone MJ, Nankivell BJ. Treatment of subclinical rejection diagnosed by protocol biopsy of kidney transplants. Transplantation. 2006 Jul 15;82(1):36-42. doi: 10.1097/01.tp.0000225783.86950.c2.
• Results Sakaguchi S, Yamaguchi T, Nomura T, Ono M. Regulatory T cells and immune tolerance. Cell. 2008 May 30;133(5):775-87. doi: 10.1016/j.cell.2008.05.009.
• Results Tang Q, Bluestone JA, Kang SM. CD4(+)Foxp3(+) regulatory T cell therapy in transplantation. J Mol Cell Biol. 2012 Feb;4(1):11-21. doi: 10.1093/jmcb/mjr047. Epub 2011 Dec 14.

Drugs

Indications