FET-PET may monitor treatment response in glioblastoma

Preliminary research shows that O-(2-[18F]-fluoroethyl)-L-tyrosine (FET) could be used as a biomarker for response to chemoradiotherapy in glioblastoma patients, the University of West Australia School of Medicine announced last week.

Associate professor Roslyn Francis, MD, and colleagues are heading up the university’s study, which could lead to bigger and better things for amino-acid imaging research.

"It's an image analysis study where we will hopefully gain information to ascertain whether incorporating areas of FET uptake into a radiotherapy planning field may influence sites of subsequent disease progression or relapse," said Francis in a press release.

The study is a continuation of previous research using C11-methionine, which has a much shorter half-life than FET. The current study is ongoing and researchers hope to assess definitively whether FET can provide proof of chemotherapy treatment response.

"The aim is to use the results of this initial single site study to form the basis of a multicenter imaging cohort study across several sites in Australia," Francis said.

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