Dette var ikke tilfældet hos nogen af dem, der fortsatte med at tage de samme proteasehæmmere.
In the patients with HIV that was resistant to four other protease inhibitors, patients taking Agenerase with ritonavir had a greater fall in viral load after four weeks than those continuing to take their previous protease inhibitors: half of those taking Agenerase with ritonavir had viral loads below 400 copies/ ml, compared with none of those continuing to take their previous protease inhibitors.