Dataset from An Open Label, Phase IIIb, Randomised Parallel Group Study to Assess the Efficacy and Safety of Switching HIV-1 Infected Patients Successfully Treated With a Nevirapine IR Based Regiment to Nevirapine XR 400 mg QD or Remaining on Nevirapine IR 200 mg BID Based Program

The primary objective of this study is to demonstrate the efficacy of nevirapine extended release (NVP XR) based regimen for HIV-1 infected patients who were receiving nevirapine immediate release (NVP IR) based regimen for at least 18 prior weeks of therapy.