From a press release issued by the FIM:

Superbike & Supersport World Championships
Anti-doping Controls

Anti-doping controls were carried out at the round of the Superbike and Supersport World Championships held at the circuit of Phillip Island, Australia, on March 28.

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

The riders controlled were : Pierfrancesco Chili (ITA, Superbike), Troy Corser (AUS, Superbike), Mauro Sanchini (ITA, Superbike); Jürgen van den Goorbergh (NED, Supersport), Sébastien Charpentier (FRA, Supersport), Alessio Corradi (ITA, Supersport).