Comparison of GW433908/Ritonavir to Nelfinavir When Used With Abacavir and Lamivudine in Patients That Have Not Taken Antiretroviral Drugs

Exclusion Criteria

• •Patients will not be eligible for this study if they:
• •Abuse drugs or alcohol in a way that would interfere with study requirements. Patients who are stable on methadone will be considered for the study.
• •Have an active/acute CDC Category C event.
• •Are unable to absorb or take medicines by mouth.
• •Are pregnant or breast-feeding.
• •Have a serious medical condition (such as diabetes, heart problem, hepatitis) that might affect the safety of the patient.
• •Have had pancreatitis or hepatitis within the last 6 months.
• •Have been treated with radiation or chemotherapy within 28 days before the study drug will be taken, or will have the need for these during the study.
• •Have taken drugs that affect the immune system (such as corticosteroids, interleukins, interferons) or that have anti-HIV activity (such as hydroxyurea or foscarnet) within 28 days before the study drug will be taken.
• •Have received an HIV vaccine within 3 months before the study drug will be taken.
• •Have received certain other drugs within 28 days before the study drug will be taken, or think that they will be needed during the study.
• •Have received experimental treatments.
• •Have allergies which might interfere with the study, in the opinion of the doctor.