BACKGROUND:Zidovudine, lamivudine, and efavirenz comprise a highly effective and well-tolerated triple regimen for antiretroviral-naive patients. Evaluating other unique nucleoside reverse-transcriptase inhibitor (NRTI) combinations for long-term viral suppression is desirable. METHODS: This multicenter, randomized, double-blind noninferiority clinical trial compared the efficacy and safety of abacavir with that of zidovudine plus lamivudine and efavirenz in 649 antiretroviral-naive HIV-infected patients. The primary objective was a comparison of proportions of patients achieving plasma HIV-1 RNA levels <or=50 copies/mL through week 48 of the study. RESULTS: At study week 48, 70% of patients in the abacavir group, compared with 69% in the zidovudine group, maintained confirmed plasma HIV-1 RNA levels of <or=50 copies/mL (in the intent-to-treat exposed population). Virologic failure was infrequent (6% in the abacavir group and 4% in the zidovudine group). There was a significant CD4(+) cell response (209 cells/mm(3) in the abacavir group and 155 cells/mm(3) in the zidovudine group). Safety profiles were as expected. CONCLUSION:Abacavir provided an effective and durable antiretroviral response that was noninferior to zidovudine, when combined with lamivudine and efavirenz.
RCT Entities:
BACKGROUND:Zidovudine, lamivudine, and efavirenz comprise a highly effective and well-tolerated triple regimen for antiretroviral-naive patients. Evaluating other unique nucleoside reverse-transcriptase inhibitor (NRTI) combinations for long-term viral suppression is desirable. METHODS: This multicenter, randomized, double-blind noninferiority clinical trial compared the efficacy and safety of abacavir with that of zidovudine plus lamivudine and efavirenz in 649 antiretroviral-naive HIV-infectedpatients. The primary objective was a comparison of proportions of patients achieving plasma HIV-1 RNA levels <or=50 copies/mL through week 48 of the study. RESULTS: At study week 48, 70% of patients in the abacavir group, compared with 69% in the zidovudine group, maintained confirmed plasma HIV-1 RNA levels of <or=50 copies/mL (in the intent-to-treat exposed population). Virologic failure was infrequent (6% in the abacavir group and 4% in the zidovudine group). There was a significant CD4(+) cell response (209 cells/mm(3) in the abacavir group and 155 cells/mm(3) in the zidovudine group). Safety profiles were as expected. CONCLUSION:Abacavir provided an effective and durable antiretroviral response that was noninferior to zidovudine, when combined with lamivudine and efavirenz.
Authors: Guinevere Q Lee; Suzanne McCluskey; Yap Boum; Peter W Hunt; Jeffrey N Martin; David R Bangsberg; Xiaojiang Gao; P Richard Harrigan; Jessica E Haberer; Mark J Siedner Journal: J Acquir Immune Defic Syndr Date: 2017-10-01 Impact factor: 3.731
Authors: Paul E Sax; Camlin Tierney; Ann C Collier; Margaret A Fischl; Katie Mollan; Lynne Peeples; Catherine Godfrey; Nasreen C Jahed; Laurie Myers; David Katzenstein; Awny Farajallah; James F Rooney; Belinda Ha; William C Woodward; Susan L Koletar; Victoria A Johnson; P Jan Geiseler; Eric S Daar Journal: N Engl J Med Date: 2009-12-01 Impact factor: 91.245