HIV Antiretroviral drugs (ARVs) are given to slow down the HIV reproduction, which in turn increases quality of life and survival. If the patient's viral load (the amount of HIV in the blood) rebounds after being suppressed by ARVs, the virus has likely developed resistance to the ARVs. As more and more mutations conferring drug resistance develop in the HIV's genome, it becomes difficult to select an ARV that will meaningfully suppress HIV replication and keep the patient's viral load low.<unk> , in this context, is the attempt to contain the replicating HIV once the usual line of treatments have been exhausted. When at least one regimen containing protease inhibitors has failed in a patient, the subsequent attempts to treat the HIV infection may be referred to as<unk> . Cancers<unk>  chemotherapy is a treatment that is given after the cancer has not responded to other chemotherapy regimens.
Salvage therapy
Aversion therapy
Breakthrough therapy
Metronomic therapy
Differentiation therapy
Dose-dense chemotherapy
Inversion therapy
Antisense therapy