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  • Title: A comparison of stavudine, didanosine and indinavir with zidovudine, lamivudine and indinavir for the initial treatment of HIV-1 infected individuals: selection of thymidine analog regimen therapy (START II).
    Author: Eron JJ, Murphy RL, Peterson D, Pottage J, Parenti DM, Jemsek J, Swindells S, Sepulveda G, Bellos N, Rashbaum BC, Esinhart J, Schoellkopf N, Grosso R, Stevens M.
    Journal: AIDS; 2000 Jul 28; 14(11):1601-10. PubMed ID: 10983647.
    Abstract:
    OBJECTIVE: Comparison of stavudine (d4T), didanosine (ddI) and indinavir (IDV) with zidovudine (ZDV), lamivudine (3TC) and IDV in HIV-1 infected patients. DESIGN: Randomized, open-label. SETTING: Fourteen HIV Clinical Research Centers. PATIENTS: Two-hundred and five patients with less than 4 weeks antiretroviral treatment, naive to 3TC and protease inhibitors and with CD4 cell counts > or = 200 x 10(6)/l and plasma HIV-1 RNA levels > or = 10,000 copies/ml. INTERVENTIONS: Stavudine 40 mg and ddI 200 mg twice daily plus IDV 800 mg every 8 h compared with ZDV 200 mg every 8 h or 300 mg twice daily, 3TC 150 mg twice daily plus IDV. MAIN OUTCOME MEASURES: The proportion of patients with plasma HIV-1 RNA levels < 500 copies/ml and < or = 50 copies/ml and changes in CD4 cell counts were compared. RESULTS: In an analysis of the primary endpoint, 61% of patients on d4T + ddI + IDV and 45% of patients on ZDV + 3TC + IDV had all HIV-1 RNA values obtained between weeks 40 and 48 < 500 copies/ml [95% confidence interval (CI) for the difference between proportions, 1.7-30.3%; P = 0.038]. In an intent-to-treat analysis, the percentage of all patients randomized with all HIV-1 RNA levels < 500 copies/ml between 40 and 48 weeks were 53% for the d4T + ddI + IDV arm and 41% for the ZDV + 3TC + IDV arm (95% CI, -1.4% to 25.7%; P = 0.068). At 48 weeks 41% and 35% were < or = 50 copies/ml for the stavudine- and ZDV-containing arms respectively (P > 0.2). The median time-weighted average increases in CD4 cells count over 48 weeks were 150 x 10(6)/l cells for the d4T arm and 106 x 10(6)/l cells for the ZDV arm (P= 0.001). The occurrence of serious adverse events was not significantly different between arms. CONCLUSION: The combination of stavudine, ddl and IDV resulted in potent antiretroviral effects over a 48-week period, comparable or superior to zidovudine, 3TC and IDV supporting the use of stavudine, ddI and a protease inhibitor as an initial antiretroviral treatment.
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