Two other novel dosage forms for docetaxel, ModraDoc003 10 mg tablets and ModraDoc004 10/50 mg tablets, were developed. Both are spray-dried solid dispersions of docetaxel pressed in tablets. The distinction between both is that ritonavir is included in the co-formulation of ModraDoc004 10/50 mg tablets (10 mg docetaxel and 50 mg ritonavir). Both dosage forms will be investigated in arm B to see whether these new formulations have comparable pharmacokinetic characteristics of docetaxel to the capsule formulation.