VR is defined as HIV viral load of < 50 copies/mL before month 36 and without subsequent rebound or change of ARV therapy. A rebound is defined by two consecutive measurements of VL ≥ 50 copies/ml, at least two weeks apart.
A change of ARV therapy is defined as a permanent discontinuation of Viramune®. A change in the background therapy due to toxicity or intolerance is not considered failure for the analysis. Therefore, a patient remains a treatment responder in this case if all other criteria are fulfilled. A rebound is defined by two consecutive measurements of VL ≥ 50 copies/ml, at least two weeks apart, after two consecutive measurements of VL< 50 copies/ml.