Efficacy and Safety of AJU-C52 in Essential Hypertension Patients

This study is testing a new blood pressure medication called AJU-C52 in adults with essential hypertension (high blood pressure without a known secondary cause). The trial is evaluating how effective and safe the drug is at lowering blood pressure. **You may be eligible if...** - You are 19 years or older - You have been diagnosed with essential (primary) high blood pressure, or are already taking blood pressure medication - If you are not currently on medication, your top blood pressure number (systolic) is between 160–200 mmHg - If you are already on medication, your top blood pressure number is between 140–200 mmHg - Your bottom blood pressure number (diastolic) is below 110 mmHg - You are willing to give consent **You may NOT be eligible if...** - Your blood pressure readings vary too widely between measurements - You have secondary hypertension (high blood pressure caused by another condition) - You have significant heart or stroke history - You have had a malignant tumor (cancer) within the past 5 years Talk to your doctor to see if this trial is right for you.