Lamivudine/zidovudine/abacavir: triple combination tablet.
The triple combination tablet containing lamivudine (150 mg), zidovudine (300 mg) and abacavir (300 mg, as abacavir sulfate) is a new formulation of three nucleoside analogue reverse transcriptase inhibitors. Two studies in treatment-naive patients (one double-blind, one nonblind) have reported that lamivudine/zidovudine (dual combination tablet) plus abacavir showed efficacy similar to that of lamivudine/zidovudine plus indinavir. In both studies, similar numbers of patients in each treatment group had plasma HIV RNA levels </=400 copies/mL at week 48 (51% vs 51% and 64% vs 50%). In treatment-experienced patients with baseline plasma HIV RNA levels <50 copies/mL, switching to lamivudine/zidovudine/abacavir (triple combination tablet) was as effective as remaining on highly active antiretroviral treatment (mainly protease inhibitor [PI]-based). Virological failure, the primary endpoint, defined as two consecutive plasma HIV RNA values >400 copies/mL, was reported in 22% of patients in both treatment groups at week 48. Treatment-naive patients receiving lamivudine/zidovudine/abacavir combination therapy experienced several adverse events, including nausea, malaise/fatigue and vomiting.
Ibbotson
Tim
T
Adis International Limited, Mairangi Bay, Auckland, New Zealand.
Perry
Caroline M
CM
D000284:Administration, Oral; D019380:Anti-HIV Agents / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D001682:Biological Availability; D015224:Dideoxynucleosides / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D004338:Drug Combinations; D024882:Drug Resistance, Viral; D015658:HIV Infections / Q000188:drug therapy*; D006801:Humans; D019259:Lamivudine / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D016032:Randomized Controlled Trials as Topic; D016896:Treatment Outcome; D015215:Zidovudine / Q000009:adverse effects / Q000493:pharmacokinetics / Q000627:therapeutic use*; D000099227:Abacavir
D019380:Anti-HIV Agents; D015224:Dideoxynucleosides; D004338:Drug Combinations; D019259:Lamivudine; D015215:Zidovudine; D000099227:Abacavir