A Trial of HRS-1780 in Participants With Uncontrolled Hypertension or Resistant Hypertension.

A Multicenter, Randomized, Double-blind, Placebo-controlled Phase II/III Clinical Trial to Evaluate the Efficacy and Safety of HRS-1780 in Participants With Uncontrolled Hypertension or Resistant Hypertension.

The study is being conducted to evaluate the efficacy and safety of HRS-1780 in participants with uncontrolled hypertension or resistant hypertension. To explore the optimal use of HRS-1780 in participants with uncontrolled hypertension or resistant hypertension。

Study Overview

• Status: Not yet recruiting
• Conditions: Uncontrolled or Resistant Hypertension
• Intervention / Treatment: Drug: HRS-1780 tablet; Drug: HRS-1780 tablet; Drug: HRS-1780 tablet; Drug: HRS-1780 tablet placebo

• Study Type: Interventional
• Enrollment (Estimated): 914
• Phase: Phase 2; Phase 3

Contacts and Locations

• Study Contact: Name: Xue Dong; Phone Number: 13511659605; Email: xue.dong@hengrui.com
• Study Contact Backup: Name: Ru Lin; Phone Number: 15521381683; Email: ru.lin.rl7@hengrui.com

Study Locations

• China
  • Chongqing Municipality
    • Chongqing, Chongqing Municipality, China, 400042
      • Army Characteristic Medical Center of the People's Liberation Army
      • Principal Investigator: Chunyu Zeng
  • Shanghai Municipality
    • Shanghai, Shanghai Municipality, China, 200080
      • Zhongshan Hospital, Fudan University
      • Principal Investigator: Xiaoqiang Ding

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Male or female, aged ≥ 18 and < 80 years ；
2. Mean trough seated SBP ≥ 140 mmHg and < 170 mmHg at both screening and randomization visits.

3. Meet one of the following two criteria:

   1. Meet the criteria for uncontrolled hypertension；
   2. Meet the criteria for resistant hypertension；
4. Serum potassium ≥ 3.5 mmol/L and ≤ 5.0 mmol/L ；
5. Voluntarily sign the ICF prior to the study；
6. Have no plan for fertility from the time of signing the ICF until 4 weeks after the last dose.

Exclusion Criteria:

1. Mean trough seated DBP ≥ 110 mmHg at randomization.
2. Have a known secondary cause of hypertension, including but not limited to: renal artery stenosis, coarctation of the aorta, uncontrolled or untreated hyperthyroidism/hypothyroidism, pheochromocytoma, or Cushing's syndrome.
3. History of adrenal insufficiency at screening.
4. Presence of severe structural heart disease at screening, including severe valvular heart disease, hypertrophic cardiomyopathy, dilated cardiomyopathy, rheumatic heart disease, or congenital heart disease.
5. Presence of persistent atrial fibrillation or any arrhythmia requiring treatment at screening; or resting heart rate < 45 bpm or > 110 bpm.
6. New York Heart Association (NYHA) Class III-IV heart failure at screening.
7. Undergone CT angiography (CTA) or colonoscopy within 1 month prior to screening.
8. Undergone percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG) within 6 months prior to screening, or plan to undergo PCI, CABG, carotid or peripheral artery revascularization during the study period.
9. History of stroke, acute coronary syndrome, hypertensive encephalopathy, or hospitalization for heart failure within 6 months prior to screening.
10. Within 6 months prior to screening, presence of clinically significant diseases in the following systems that, in the investigator's judgment, may interfere with the study results or pose additional risk to the administration of the investigational product, including but not limited to: respiratory, digestive, endocrine, immune, urinary, hematologic, neurologic, or psychiatric disorders.
11. History of malignancy within 5 years prior to screening.
12. Use of strong inhibitors/inducers of cytochrome P450 3A4 (CYP3A4) within 1 week prior to screening ,or moderate inhibitors/inducers.
13. Use of mineralocorticoid receptor antagonists (MRAs) and/or potassium-sparing diuretics (e.g., spironolactone, eplerenone, finerenone, amiloride, triamterene, etc.) within 4 weeks prior to randomization.
14. Use of aldosterone synthase inhibitors (ASIs) within 4 weeks prior to randomization.
15. Concomitant use of angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin II receptor blockers (ARBs) within 4 weeks prior to randomization.
16. Treatment with potassium binders within 2 months prior to screening.

17. Presence of any of the following laboratory abnormalities:

    1. eGFR < 45 mL/min/1.73 m² ;
    2. HbA1c > 10.5%;
    3. Serum sodium < 135.0 mmol/L;
    4. ALT ≥ 3 × ULN;
    5. AST ≥ 3 × ULN;
    6. Total bilirubin ≥ 2 × ULN.
18. Body mass index (BMI) > 35 kg/m².
19. Run-in period placebo compliance < 80% or > 120% at randomization.
20. Known or suspected allergy to MRAs, the investigational product, or any of its excipients.
21. Treatment with any other investigational product within 90 days or 5 half-lives prior to screening .
22. Women of childbearing potential (WOCBP) who are pregnant, breastfeeding, plan to become pregnant during the study, or are unable to use highly effective contraceptive measures; or male participants who are unable to use highly effective contraceptive measures.
23. Occupation or working schedule requiring regular night shifts or similar circumstances that may interfere with study procedures.
24. Any other condition that, in the investigator's judgment, may compromise participant safety or interfere with the assessment of study results.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Quadruple

Number of Arms

4

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Treatment group A: HRS-1780 tablet Dose 1	Drug: HRS-1780 tablet; HRS-1780 tablet Dose 1; Drug: HRS-1780 tablet; HRS-1780 tablet Dose 2; Drug: HRS-1780 tablet; HRS-1780 tablet Dose 3
Experimental: Treatment group B: HRS-1780 tablet Dose 2	Drug: HRS-1780 tablet; HRS-1780 tablet Dose 1; Drug: HRS-1780 tablet; HRS-1780 tablet Dose 2; Drug: HRS-1780 tablet; HRS-1780 tablet Dose 3
Experimental: Treatment group C: HRS-1780 tablet Dose 3	Drug: HRS-1780 tablet; HRS-1780 tablet Dose 1; Drug: HRS-1780 tablet; HRS-1780 tablet Dose 2; Drug: HRS-1780 tablet; HRS-1780 tablet Dose 3
Placebo Comparator: Treatment group D: HRS-1780 tablet placebo	Drug: HRS-1780 tablet placebo; HRS-1780 tablet placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Change from baseline in trough seated SBP at Week 12	baseline and Week 12

Secondary Outcome Measures

Outcome Measure	Time Frame
Change from baseline in trough seated DBP at Week 12	baseline and Week 12
Change from baseline in trough seated SBP at Week 8	baseline and Week 8
Proportion of participants achieving trough seated blood pressure < 140/90 mmHg at Week 12	Week 12
Proportion of participants achieving trough seated SBP < 130 mmHg at Week 12	Week 12
Change from baseline in 24-hour ambulatory blood pressure monitoring (ABPM) mean SBP at Week 12	baseline and Week 12
Change from baseline in daytime and nighttime mean SBP measured by 24-hour ABPM at Week 12	baseline and Week 12
Change from baseline in daytime and nighttime mean DBP measured by 24-hour ABPM at Week 12	baseline and Week 12
Change from randomized withdrawal baseline (Week 44) in trough seated SBP at Week 52	Week 44 and Week 52
Proportion of participants with eGFR decline ≥ 30% during the treatment period	baseline and treatment period
Proportion of participants with serum potassium > 6.0 mmol/L during the treatment period	treatment period
Change from baseline in 24-hour ambulatory blood pressure monitoring (ABPM) mean DBP at Week 12	baseline and Week 12
Proportion of participants with serum potassium > 5.5 mmol/L and ≤ 6.0 mmol/L during the treatment period	treatment period

Collaborators and Investigators

• Sponsor: Shandong Suncadia Medicine Co., Ltd.

Study record dates

Study Major Dates

• Study Start (Estimated): July 1, 2026
• Primary Completion (Estimated): April 1, 2029
• Study Completion (Estimated): April 1, 2029

Study Registration Dates

• First Submitted: July 13, 2026
• First Submitted That Met QC Criteria: July 13, 2026
• First Posted (Actual): July 16, 2026

Study Record Updates

• Last Update Posted (Actual): July 16, 2026
• Last Update Submitted That Met QC Criteria: July 13, 2026
• Last Verified: July 1, 2026

More Information

Terms related to this study

• Other Study ID Numbers: HRS-1780-302

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No