From a press release issued by the FIM:

Endurance World Championship Anti-doping Controls

Anti-doping controls were carried out at the round of the Endurance World Championships held at the circuit of A1-Ring, Germany, on 20 July.

All the samples tested showed the absence of any banned substances.

The riders controlled were: Gwen Frederic Giabbani (FRA), Warwick Nowland (AUS), Paolo Blora (ITA), Stéphane Mertens (BEL), Jason Pridmore (USA), James Ellison (GBR).