PET Assessment of Acute Lung Transplant Rejection

Status Terminated

Clinical Trial Summary

The purpose of this research study is to gain understanding of the basic responses of the lungs to inflammation and specifically if there may be a better way to detect graft inflammation using non-invasive methods as well as to determine the effectiveness of immunosuppressive treatment regimens in preventing acute rejection in lung transplant recipients.

Clinical Trial Description

Positron emission tomography with fluorodeoxyglucose (FDG-PET) is a potential way we can measure lung inflammation. FDG-PET imaging is a clinically accepted and FDA-approved method that is commonly used in the diagnosis and management of cancer. PET is a machine that detects radiation and generates pictures using a donut shaped scanner similar in appearance to an x-ray "CAT" computerized axial tomography or computed tomography (CT) scan. FDG stands for [18F] (flourine 18) fluorodeoxyglucose, a radiolabeled sugar that is used to identify areas of inflammation with the PET scanner. A CT scan takes a picture of what the lungs and airways look like.

T cells are the primary cause of acute rejection of lung transplants. Because T cells must divide in order to be activated and cause rejection, imaging them while they are dividing is another way that we can determine whether acute rejection is occurring. A new PET tracer called [18F]ISO-1 (18F-labeled σ2-receptor ligand for PET, N-(4-(6,7-dimethoxy-3,-4-dihydroisoquinolin-2(1H)-yl)butyl)-2-(2-18F-fluoroethoxy)-5-methylbe nzamide (18F-3c), binds to dividing cells. Therefore, [18F]ISO-1 may help us measure acute rejection more accurately. [18F]ISO-1 is an investigational drug. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02204202
Study type	Observational
Source	Washington University School of Medicine
Contact
Status	Terminated
Phase
Start date	February 2014
Completion date	February 4, 2017

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