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  • Title: Virologic and immunologic effectiveness of tipranavir/ritonavir (TPV/r)- versus darunavir/ritonavir (DRV/r)-based regimens in clinical practice.
    Author: Antoniou T, Raboud JM, Diong C, Su D, Dewhurst N, Buckley V, Kovacs C, Rachlis A, Brunetta J, Smith G, Gough K, Fletcher D, Loutfy MR.
    Journal: J Int Assoc Physicians AIDS Care (Chic); 2010; 9(6):382-9. PubMed ID: 21138833.
    Abstract:
    BACKGROUND: Although both tipranavir and darunavir are important options for the management of patients with multidrug resistant HIV, there are at present no studies comparing the effectiveness and safety of these 2 antiretroviral drugs in this population of patients. OBJECTIVE: To compare the effectiveness and safety of ritonavir (TPV/r)- and darunavir/ritonavir (DRV/ r)-based therapies in treatment-experienced patients (n = 38 and 47, respectively). METHODS: Multicenter, retrospective cohort study. RESULTS: The median baseline viral load and CD4 count were 4.7 copies/mL (interquartile range [IQR] 4.3, 5.2) and 168 cells/mm( 3) (IQR 80, 252) for TPV/r patients and 4.7 copies/mL (IQR 3.7, 5.1) and 171 cells/mm(3) (IQR 92, 290) for DRV/r patients. The median number of years on antiretroviral therapy (ART) prior to starting DRV/r or TPV/r were 12.7 (10.2-15.5) and 10.5 (8.4-12.6), respectively (P < .01). Current raltegravir (RAL) use (odds ratio [OR] 5.53, 95% CI 1.08-28.34) was significantly associated with virologic suppression at week 24 in multivariable logistic regression models, whereas the use of TPV/r was not significantly associated with virologic suppression compared to DRV/r (OR 0.93, 95% CI 0.27-3.18, P = .91). CONCLUSION: No significant difference was observed between DRV/r and TPV/r in terms of virologic suppression.
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