Aprilia rider Andrea Iannone will miss MotoGP's Sepang test this weekend as his anti-doping case rumbles on.

Iannone was provisionally suspended in December after returning an adverse finding of a non-specified substance in a urine sample taken at last year's Malaysian Grand Prix.

The Italian requested analysis of his B sample, which confirmed the initial result.

Iannone presented his case to the International Disciplinary Court on Tuesday and will remain suspended until a panel of three judges reach a decision.

Pre-season testing will take place at Sepang from Friday until Sunday.