A Phase II Clinical Study on the Efficacy and Safety of HRS-1780 in Participants With Primary Aldosteronism

A Multicenter, Randomized, Double-blind, Parallel, Placebo-controlled Phase II Clinical Study to Evaluate the Efficacy and Safety of HRS-1780 in Participants With Primary Aldosteronism

This study is a multicenter, randomized, double-blind, placebo-parallel-controlled phase II clinical trial to evaluate the efficacy and safety of HRS-1780 compared with placebo in participants with primary aldosteronism. The study plans to enroll 60 participants.

Study Overview

• Status: Recruiting
• Conditions: Primary Aldosteronism
• Intervention / Treatment: Drug: Placebo; Drug: HRS-1780 Tablets

• Study Type: Interventional
• Enrollment (Estimated): 60
• Phase: Phase 2

Contacts and Locations

• Study Contact: Name: Shenhuan Liu; Phone Number: 0518-82342973; Email: shenhuan.liu@hengrui.com

Study Locations

• China
  • Chongqing Municipality
    • Chongqing, Chongqing Municipality, China, 400016
      • Recruiting
      • The First Affiliated Hospital of Chongqing Medical University
      • Principal Investigator: Qifu Li
  • Henan
    • Zhengzhou, Henan, China, 450052
      • Recruiting
      • the First Affiliated Hospital of Zhengzhou University
      • Principal Investigator: Guijun Qin

Participation Criteria

Eligibility Criteria

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

Description

Inclusion Criteria:

1. Male or female, aged ≥ 18 years on the date of signing the informed consent form.
2. Diagnosed with primary aldosteronism.
3. No use of antihypertensive drugs before screening, or stable use of antihypertensive drugs.
4. Voluntarily sign the informed consent form before the trial, fully understand the trial content, procedures, and possible adverse reactions, and be capable and willing to comply with the protocol requirements to complete the study.
5. From the signing of the informed consent form until 4 weeks after the last dose, the participant has no plan for procreation and is willing to adopt the highly effective contraceptive measures specified in the protocol.

Exclusion Criteria:

1. Has known secondary causes of hypertension.
2. Has previously undergone, or plans to undergo during the study period, adrenal-related surgeries, including adrenalectomy, adrenal ablation, etc.
3. Estimated glomerular filtration rate (eGFR) < 30 mL/min/1.73 m².
4. Has had any malignancy of an organ system within 5 years before screening.
5. Has received any other investigational drug within 90 days or 5 half-lives before screening (whichever is longer).
6. Has a history of blood donation or blood loss ≥ 400 mL within 3 months before screening, or has received a blood transfusion within 2 months.
7. Known or suspected alcohol or narcotic abuse.
8. Women who are pregnant, breastfeeding, planning pregnancy, or of childbearing potential unable to adopt highly effective contraceptive measures; or men unable to adopt highly effective contraceptive measures.
9. Abnormal daily routine.
10. Use of strong inhibitors/inducers of cytochrome P450 3A4 (CYP3A4) within 1 week before randomization.
11. Severe infection, severe trauma, or major or medium-scale surgery within 1 month prior to screening;
12. Stroke, transient ischemic attack, myocardial infarction, symptomatic heart failure (NYHA III-IV), or coronary revascularization within 3 months prior to screening; and/or planned coronary, carotid, or peripheral artery revascularization at the time of screening;
13. Within 6 months prior to the screening period, participants have clinically significant diseases that, in the judgment of the investigator, may interfere with the trial results or pose additional risks to the administration of the study drug, including but not limited to respiratory, digestive, cardiovascular, endocrine, immune, urinary, adrenal (except for the primary disease), hematological, neurological, psychiatric, or other conditions;
14. Presence or suspected presence of depression, bipolar disorder, suicidal tendencies, schizophrenia, or other severe mental disorders; or participants with mental incapacity or language barriers that prevent them from adequately understanding or participating in the trial process;
15. Alanine aminotransferase (ALT) ≥ 3 × upper limit of normal (ULN);
16. Aspartate aminotransferase (AST) ≥ 3 × ULN;
17. In the judgment of the investigator, any condition that may affect participant safety or otherwise interfere with the evaluation of trial results (including medical, psychological, social, or geographical factors).

Study Plan

How is the study designed?

Design Details

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

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Placebo Comparator: Placebo	Drug: Placebo; Placebo
Experimental: HRS-1780 Tablets	Drug: HRS-1780 Tablets; HRS-1780 Tablets

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Change from baseline in office systolic blood pressure (SBP);	up to Week 8

Secondary Outcome Measures

Outcome Measure	Time Frame
Rate of achieving office blood pressure <140/90 mmHg;	up to Week 8
Rate of achieving office blood pressure <130/80 mmHg;	up to Week 8
Change from baseline in office diastolic blood pressure (DBP) ;	up to Week 8
Change from baseline in 24-hour ambulatory blood pressure monitoring (ABPM) mean SBP and DBP ;	up to Week 8
Change from baseline in 24-hour ABPM daytime and nighttime SBP and DBP ;	up to Week 8
Change from baseline in serum potassium (K+) and serum sodium ;	Weeks 2, 4, and 8
Total cumulative dose of potassium supplement (potassium chloride) ;	up to Week 8
Proportion of participants with a ≥30% decline in estimated glomerular filtration rate (eGFR);	up to Week 8
Proportion of participants with 5.5 < K+ ≤ 6.0 mmol/L;	up to Week 8
Proportion of participants with K+ > 6.0 mmol/L;	up to Week 8

Collaborators and Investigators

• Sponsor: Shandong Suncadia Medicine Co., Ltd.

Study record dates

Study Major Dates

• Study Start (Actual): April 23, 2026
• Primary Completion (Estimated): November 1, 2026
• Study Completion (Estimated): November 1, 2026

Study Registration Dates

• First Submitted: March 10, 2026
• First Submitted That Met QC Criteria: March 10, 2026
• First Posted (Actual): March 13, 2026

Study Record Updates

• Last Update Posted (Actual): April 30, 2026
• Last Update Submitted That Met QC Criteria: April 29, 2026
• Last Verified: March 1, 2026

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Endocrine System Diseases; Adrenal Gland Diseases; Adrenocortical Hyperfunction; Hyperaldosteronism
• Other Study ID Numbers: HRS-1780-203

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