MEXICO CITY--(BUSINESS WIRE)--Bionor Immuno today announced that it has advanced its efforts to develop the first HIV therapeutic immunization with the dosing of patients in a global Phase 2b clinical trial of the company’s lead candidate (Vacc-4x). This randomized, double-blind, placebo-controlled trial is being conducted in HIV infected patients with the potential to offer an important drug free break in their current antiretroviral therapy. The company anticipates that trial results will be available by year end 2009.