Effectiveness of a Valsartan Based Versus an Amlodipine Based Treatment Strategy in naïve Patients With Stage 1 or Stage 2 Hypertension or in Patients Uncontrolled on Current Monotherapy

The population for this current study will include stage 1 and stage 2 hypertensive patients who are newly diagnosed or didn't have treatment during the last 3 months and patients who are currently treated but uncontrolled on present monotherapy. The purpose of this study is to evaluate the efficacy of a treatment with valsartan versus a treatment with amlodipine in reaching blood pressure control after 14 weeks of treatment.