Двете основни проучвания за Isentress, които все още са в ход и се планира да продължат до три години, включват общо 699 инфектирани с ХИВ пациенти.
All of the patients have been receiving ‘ optimised background therapy’ (a combination of other antiviral medicines chosen for each patient as it had the best chances of reducing the levels of HIV in the blood) to which either Isentress or placebo (a dummy treatment) has been added.