Clinical Efficacy and Safety Evaluation of Irbesartan High and Amlodipine Combined Therapy in Essential Hypertension Patients

A Randomized, Double-blind, Multicenter, Placebo-control, Parallel Group Phase # Study to Evaluate the Efficacy and Safety of Irbesartan and Amlodipine Combined Therapy in Essential Hypertension Patients

The purpose of this study is to evaluate efficacy and safety of Irbesartan and Amlodipine combined therapy in patients with essential hypertension inadequately controlled on Irbesartan monotherapy

Inclusion Criteria:

• Patients who are 19 years or older on screening
• Signed informed consent
• Patients with Essential Hypertension
• Other inclusion applied

Exclusion Criteria:

• Orthostatic hypotension with symptom
• Other exclusion applied