A Study to Evaluate Efficacy and Safety of HCP1401 for Stage 2 Hypertension Patients Not Controlled by HCP0605

Inclusion Criteria: * Hypertension patient who satisfied below condition at Visit 1. * patient who takes antihypertensive drug * 140mmHg \<= sitSBP \<= 200mmHg * patient who doesn't take antihypertensive drug * 160mmHg \<= sitSBP \<= 200mmHg * 140mmHg \<= sitSBP \<= 200mmHg at Visit 2 Exclusion Criteria: * Patient who have received 4 or more antihypertensive drug * Patient with 20mmHg of difference in sitSBP or 10mmHg of difference in sitDBP between 3 times of BP measuring at Visit 1 * Patient with sitDBP \>= 120mmHg at Visit 2 * Patient with secondary hypertension