Safety, Tolerability, and Blood Levels of Ritonavir-Boosted Atazanavir and Rifampin When Taken Together in HIV Uninfected Adults

Summary

Rifampin (RIF) is used for the treatment of tuberculosis (TB), an infectious disease that affects many people with HIV. RIF was shown to lower concentrations and decrease the effectiveness of some anti-HIV drugs, including the HIV protease inhibitor (PI) atazanavir (ATV) boosted with ritonavir (RTV). The purpose of this study is to determine the interactions between RTV-boosted ATV and evaluate the safety and tolerability of giving these drugs together in HIV uninfected adults.

Timeline

Start

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Primary completion

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Completion

2007-12

Publications

• Background Finch CK, Chrisman CR, Baciewicz AM, Self TH. Rifampin and rifabutin drug interactions: an update. Arch Intern Med. 2002 May 13;162(9):985-92. doi: 10.1001/archinte.162.9.985.
• Background Fujiwara PI, Clevenbergh P, Dlodlo RA. Management of adults living with HIV/AIDS in low-income, high-burden settings, with special reference to persons with tuberculosis. Int J Tuberc Lung Dis. 2005 Sep;9(9):946-58.
• Background Kashuba AD. Drug-drug interactions and the pharmacotherapy of HIV infection. Top HIV Med. 2005 Jun-Jul;13(2):64-9.
• Background Musial BL, Chojnacki JK, Coleman CI. Atazanavir: a new protease inhibitor to treat HIV infection. Am J Health Syst Pharm. 2004 Jul 1;61(13):1365-74. doi: 10.1093/ajhp/61.13.1365.
• Background Orrick JJ, Steinhart CR. Atazanavir. Ann Pharmacother. 2004 Oct;38(10):1664-74. doi: 10.1345/aph.1D394. Epub 2004 Sep 7.
• Results Acosta EP, Kendall MA, Gerber JG, Alston-Smith B, Koletar SL, Zolopa AR, Agarwala S, Child M, Bertz R, Hosey L, Haas DW. Effect of concomitantly administered rifampin on the pharmacokinetics and safety of atazanavir administered twice daily. Antimicrob Agents Chemother. 2007 Sep;51(9):3104-10. doi: 10.1128/AAC.00341-07. Epub 2007 Jun 18.

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Indications