Anti-doping laboratory refining test for microdoses of EPO

The new test should allow EPO to be detected up to 48-hours after administration

A French laboratory believes it has discovered a new way to detect 'microdoses' of erythropoietin (EPO).

The Châtenay-Malabry laboratory, which developed the first test for the detection of EPO 20 years ago, said the new test could show traces of the drug 48-hours after it's been administered, as opposed to the current 24-hour window.

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Michelle Arthurs-Brennan

Michelle Arthurs-Brennan the Editor of Cycling Weekly website. An NCTJ qualified traditional journalist by trade, Michelle began her career working for local newspapers. She's worked within the cycling industry since 2012, and joined the Cycling Weekly team in 2017, having previously been Editor at Total Women's Cycling. Prior to welcoming her daughter in 2022, Michelle raced on the road, track, and in time trials, and still rides as much as she can - albeit a fair proportion indoors, for now.