title: CASTLE study showed similar efficacy.
mesh_terms: D019380:Anti-HIV Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D000069446:Atazanavir Sulfate; D004359:Drug Therapy, Combination; D017320:HIV Protease Inhibitors / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D061466:Lopinavir; D009842:Oligopeptides / Q000008:administration & dosage / Q000627:therapeutic use*; D011725:Pyridines / Q000008:administration & dosage / Q000627:therapeutic use*; D011744:Pyrimidinones / Q000008:administration & dosage / Q000627:therapeutic use*; D019438:Ritonavir / Q000008:administration & dosage / Q000627:therapeutic use*; D019562:Viral Load
chemical_list: D019380:Anti-HIV Agents; D017320:HIV Protease Inhibitors; D009842:Oligopeptides; D011725:Pyridines; D011744:Pyrimidinones; D061466:Lopinavir; D000069446:Atazanavir Sulfate; D019438:Ritonavir