At week 48, non-inferiority was shown with 68% of patients in the group treated with nelfinavir and 69% patients treated with fosamprenavir/ritonavir having plasma HIV-1 RNA < 400 copies/ml whereas 53% in the nelfinavir and 55% in the fosamprenavir/ritonavir patients had HIV-1 RNA < 50 copies/ml (intent-to-treat, rebound/discontinuation = failure).