Overview PRINCE: Study of Atazanavir (ATV)/Ritonavir (RTV) Status: Completed Trial end date: 2017-09-11 Target enrollment: Participant gender: Summary The purpose of this study is to determine whether atazanavir powder combined with ritonavir is safe and well tolerated and produces appropriate drug exposure in children ≥3 months to <6 years of age. Phase: Phase 3 Details Lead Sponsor: Bristol-Myers SquibbTreatments: Atazanavir SulfatePharmaceutical SolutionsRitonavir