QR12000 Compound Tablets in Patients with Moderate to Severe Essential Hypertension

Inclusion criteria

• Subjects who can understand and are willing to complying with protocol requirement and sign the informed consent form.
• Man or woman aged 18 years to 75 years (inclusive), with BMI≤30 kg/m2.
• Patients with moderate to severe hypertension. Untreated patients must have an msSBP ≥ 160 mmHg and < 190 mmHg at the screening and randomization visit; Treated patients must have an msSBP≥150 mmHg and <180 mmHg or msSBP≥140 mmHg and <170 mmHg at the screening visit based on numbers of antihypertensive and msSBP≥160 mmHg <190 mmHg at the randomization visit; Patients must have an absolute difference of ≤20 mmHg in msSBP between randomization visit and the immediately preceding visit.
• Subjects who agree to use adequate contraception from 2 weeks prior to screening to 1 month after last dose.

Exclusion criteria

• History or evidence of a secondary form of hypertension.
• History of peripheral arterial occlusive disease and Raynaud's syndrome.
• History of hyperthyroidism.
• History of hypotension.
• History of angioedema, drug-related or otherwise.
• Suffered by severe cerebrovascular disease within 1 year prior to screening.
• Suffered by severe heart disease within 1 year prior to screening
• History of severe or malignant retinopathy.
• History of aortic aneurysm or dissection, cardiac surgery, or percutaneous coronary intervention within 1 year prior to screening.
• History of malignant tumor within 5 years prior to screening.
• Poorly controlled diabetes prior to screening
• History of severe autoimmune diseases.
• History of severe mental disorder.
• Clinically significant laboratory abnormalities.
• History of allergy to the test drug, active control drug, or drugs similar to the test drug and positive control drug or related excipients.
• Undergone gastrointestinal surgery that could significantly alter drug absorption, distribution, metabolism, and excretion, or with severe gastrointestinal diseases, dysphagia, or recurrent vomiting that causes difficulty in eating or taking medication.
• Intolerance to the run-in period.
• Poor medication compliance or other non-compliance during run-in period.
• Participated in any interventional clinical trial within 3 months prior to screening, plan to participate in another clinical trial during the period of this trial, or plan to participate in another clinical trial within 1 month after the end of this trial.
• History of alcohol abuse within 6 months prior to screening or evidence of drug abuse.
• Not agree or unable to comply with the restrictions on concomitant treatment during the study.
• Pregnancy test positive, lactating women, or women planning to become pregnant.
• High-altitude workers or large motor vehicle drivers and other professionals engaged in hazardous mechanical operations.
• Other conditions that by the investigator's discretion may interfere with efficacy or safety assessment of the study, or pose a great risk to the subject.