Table 1. Definitions of Treatment Failure

  • Virologic Failure
    • Failure to reduce the viral load to an undetectable level or
    • Failure to reduce the viral load by at least 2 to 2.5 log10 or
    • A persistent increase in viral load following a period of adequate suppression

  • Immunologic Failure
    • Failure to restore the CD4 count to more than 200 cells/mm3 or
    • Failure to significantly increase CD4-cell count or
    • A persistent decline in CD4-cell count after a period of immune reconstitution

  • Clinical Failure
    • Development of new OI, wasting, or dementia or
    • Failure to resolve pretreatment OI, wasting, or dementia