alexa Safety, tolerability, and efficacy of darunavir (TMC114) with low-dose ritonavir in treatment-experienced, hepatitis B or C co-infected patients in POWER 1 and 3.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Rachlis A, Clotet B, Baxter J, Murphy R, Lefebvre E, Rachlis A, Clotet B, Baxter J, Murphy R, Lefebvre E

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Abstract PURPOSE: This subanalysis examines the safety and efficacy of darunavir with low-dose ritonavir (DRV/r) in hepatitis B or C virus (HBV or HCV) co-infected patients in POWER 1 and 3 trials. METHOD: POWER 1 and 3 enrolled treatment-experienced, HIV-infected patients with > or =1 primary protease inhibitor (PI) mutation and HIV-1 RNA >1,000 copies/mL. All patients received an optimized background regimen plus either control PI (almost all ritonavir boosted) or one of four DRV/r doses (POWER 1) or DRV/r 600/100 mg bid (POWER 3). Patients with active HBV or HCV co-infection who did not require treatment for hepatitis were included. Safety parameters were evaluated. RESULTS: Of 634 DRV/r and 63 control (97\% ritonavir boosted) patients assessed, 13\% and 16\%, respectively, had active co-infection. In both groups, more patients with active co-infection than without co-infection had liver-related adverse events (AEs). These AEs were mainly asymptomatic liver transaminase elevations, although changes were slightly less in the DRV/r group (DRV/r, 13\% vs. 8\%; control PI, 20\% vs. 12\%). Only two patients (one per treatment arm) discontinued therapy due to grade 3 or 4 alanine and aspartate transaminase elevations. CONCLUSION: DRV/r was generally well tolerated in treatment-experienced, HBV or HCV co-infected patients. No differences in liver-related AEs were observed between treatment groups. This article was published in HIV Clin Trials and referenced in Journal of AIDS & Clinical Research

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