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  • Title: Efficacy and safety of indinavir/ritonavir 400/100 mg twice daily plus two nucleoside analogues in treatment-naive HIV-1-infected patients with CD4+ T-cell counts <200 cells/mm3: 96-week outcomes.
    Author: Mootsikapun P, Chetchotisakd P, Anunnatsiri S, Boonyaprawit P.
    Journal: Antivir Ther; 2005; 10(8):911-6. PubMed ID: 16430196.
    Abstract:
    OBJECTIVE: To evaluate the efficacy and safety of indinavir/ritonavir 400/100 mg plus stavudine and lamivudine twice daily in antiretroviral-therapy-naive Thai HIV-1-infected patients. METHODS: This was an open-label, non-randomized single arm study. Antiretroviral-naive patients (n=80) with CD4+ cell count < 200 x 10(6)/l were started on stavudine and lamivudine plus indinavir/ritonavir 400/100 mg twice daily. CD4+ cell count and HIV RNA were determined at week 0, 12, 24, 48 and 96. HIV RNA was measured to a level of 50 copies/ml by RT-PCR assay. Primary analysis was statistically performed as intent to treat. The primary endpoint was the percentage of patients with plasma HIV RNA below 50 copies/ml at week 96. RESULT: Eighty antiretroviral-therapy-naive patients with median CD4+ cell count 19 x 10(6)/l (range: 2 - 197 x 10(6)/l) and median baseline plasma HIV RNA of 174,000 copies/ml (range 16,800-750,000 copies/ml) were enrolled. In the intent-to-treat analysis at week 96, the proportion of patients with HIV RNA of <50 copies/ml was 68.8% (95% confidence interval [CI]: 68.3-69.3), whereas it was 88.7% (95% CI: 88.1-89.3) in the on-treatment analysis at week 96. The regimen was well tolerated. Hyperglycaemia, hypercholesterolaemia and hypertriglyceridaemia were found in 8.3, 33.3 and 37.0% of the patients, respectively. Treatment was stopped in 18 patients; two from intolerance, two switched therapy, four as a result of serious adverse event-related death, and ten were lost to follow-up. CONCLUSION: Our study demonstrates that indinavir/ritonavir 400/100 mg plus stavudine and lamivudine twice daily, the least expensive boosted protease inhibitor, appears to be effective and safe up to 96 weeks despite high baseline viraemia and low CD4+ cell count in antiretroviral-naive patients.
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