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Clinical Trial Summary

The a series of clinical studies of [18F]FSPG PET/CT showed that [18F]FSPG is safe and promising PET tracer for detecting inflammation with favorable biodistribution and pharmacokinetics in patients. By using [18F]FSPG, which targets system xCˉ, a key player in the active phase of inflammation, the goal of this phase 2 study is to evaluate diagnostic validity of [18F]FSPG PET/CT to detect allograft rejection after heart and liver allograft, where conventional imaging has limitations. Diagnostic efficacy of [18F]FSPG PET/CT will be determined in comparison with histologic evaluation of allograft biopsy. Other critical questions including whether quantitative measures of [18F]FSPG uptake is associated with the severity of rejection, inter-reader variability of [18F]FSPG PET/CT, and safety assessment will be also evaluated.


Clinical Trial Description

This open label, non-randomized, single center, single-dose exploratory study is designed to obtain imaging assessments using PET/CT with [18F]FSPG in patients with heart transplantation (HT, n = 10) and liver transplantation (LT, n = 10). Subjects who underwent or scheduled to undergo biopsy for histologic diagnosis of acute rejection will be enrolled. The study comprises 3 periods: screening, treatment, and follow-up. The screening period starts with the subject's signature on the informed consent form and ends with assignment to treatment that is inclusion of the subject for treatment. The treatment period starts with baseline measurements, and ends with the last measurement/procedure on the day following injection of 200 MBq of [18F]FSPG. The follow-up period contains the end-of-study interview. Key measurement is the PET/CT image acquisition about one hour after the single injection of [18F]FSPG. For evaluation of safety, adverse events (AE) will be monitored and recorded during the study period. This study will be monitored regularly by a clinical research associate from the sponsor or a designated contract research organization. Data quality and study integrity will be assessed. The investigator will document the items that are required to evaluate the study in the subject files. Data required according to this protocol are to be recorded on the case report forms provided by the sponsor as soon as possible. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04488094
Study type Interventional
Source Asan Medical Center
Contact
Status Completed
Phase Phase 2
Start date November 18, 2020
Completion date March 31, 2023

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