Primary objectives
:
• To determine if PI-based HAART is superior to NRTI-based HAART when used for the purpose of preventing antepartum and intrapartum MTCT by comparing the percentage of women in each randomization arm with HIV-1 RNA < 400 copies/mL at delivery.
• To determine if PI-based HAART is superior to NRTI-based HAART for the purpose of preventing breastfeeding MTCT by comparing the percentage of women in each randomization arm with HIV-1 RNA < 400 copies/mL throughout the breastfeeding period.
• To determine the efficacy of HAART for reducing MTCT by comparing rates of antepartum, intrapartum, and breastfeeding MTCT between infants born to all women receiving HAART in this trial and a group of infants followed at the same sites in a clinical trial that studied an alternate PMTCT strategy (ZDV with or without SD NVP to mothers and infants, followed by extended ZDV prophylaxis to breastfeeding infants).