Recruiting
Phase 3

Finerenone vs. FDC

Sponsor:

Sarfez Pharmaceuticals, Inc.

Code:

NCT07223502

Conditions

Hypertension (HTN)

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Combination Product: FDC of spironolactone and ER torsemide

Combination Product: Stabilized doses of loop diuretic and finerenone

Study Details

Brief summary:

A study Comparing the Clinical Benefit of Finerenone Versus a Fixed-Dose Combination (FDC) of Extended-Release Torsemide and Spironolactone in Patients with Hypertension and Chronic Kidney Disease.

Conditions

Hypertension (HTN)

Study ID

NCT07223502

Start date

Dec 1, 2025

Status verified date

Mar, 2026

Completion date

Oct, 2026

Anticipated

Primary completion date

Jul, 2026

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Inclusion Criteria:

1. Adult male and female patients aged ≥18 years;
2. Are diagnosed with a CKD;
3. Have an eGFR of ≥25 and ≤60 mL/min/1.72 m2;
4. Have an UACR 150-3500 mg/g and Sk 4.5 to 5.0 mmol/L;
5. Have an observed clinic seated systolic blood pressure (SBP) of ≥130 and ≤170 mmHg;
6. Are receiving up to an 80 mg daily dose of furosemide or an equivalent dose of other loop diuretics and and 10 mg daily dose of finerenone for 30 days;
7. Willing and able to comply with all aspects of the protocol and to provide written informed consent from the patient or patient's legally acceptable representative (LAR);
8. Willing to use effective methods of contraception during sexual intercourse with an opposite sex throughout the study.

Exclusion Criteria:

1. Have a diagnosis of type I diabetes mellitus (T1DM);
2. Have uncontrolled hypertension (SBP >170 mmHg);
3. Have primary aldosteronism or endocrine disorders;
4. Have serum potassium >5.0 or <4.5 mmol/L at screening;
5. Unable to continue on 10 mg finerenone or require daily dose of more than 80mg furosemide or equivalent doses of other loop diuretics
6. Have a recent diagnosis of acute kidney injury (≤3 months);
7. Had a cardiovascular event within 3 months prior to screening (e.g., myocardial infarction, stroke, transient ischemic attack, pulmonary embolism, elective coronary artery bypass grafting) or elective percutaneous coronary intervention within 1 month prior to screening;
8. Had hospitalized for worsening heart failure in last 30 days;
9. Have an autosomal dominant or recessive polycystic kidney disease;
10. Have an Addison's disease;
11. Have Hepatic insufficiency classified as Child-Pugh;
12. Have a diagnosis of Lupus nephritis or anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis or any other kidney diseases requiring immunosuppressive therapy;
13. Have a history of organ transplant;
14. Require treatment with potassium-sparing diuretics;
15. Have an active malignancy;
16. Currently taking potassium supplement or potassium binders;
17. Have known hypersensitivity to sulfonamides or related compounds or spironolactone or finerenone;
18. Is pregnant, breastfeeding, or planning to become pregnant during the study;
19. Have participated in another clinical study involving any investigational drug within 30 days prior to Screening;
20. Is considered to be unsuitable for any other reason that may either place the patient at increased risk during participation or interfere with the interpretation of the study outcomes by the Investigator, after reviewing medical and psychiatric history, physical examination, and laboratory evaluation.

Study Design

Enrollment

30 participants

Anticipated

Allocation

Randomized

Intervention Model

Parallel Assignment

Primary purpose

Treatment

Interventions and Outcome Measures

Arms

active comparator: Active Comparator: Fixed-dose combination (FDC) of ER Torsemide and Spironolactone tablet

Once daily fixed-dose combination of extended release Torsemide 24 mg and Spironolactone 30 mg

active comparator: Active Comparator: Continued on stabilized doses of loop diuretic and finerenone

Oral dose of once daily up to 80 mg furosemide or equivalent doses of other loop diuretics and 10 mg finerenone

Interventions

Combination Product: FDC of spironolactone and ER torsemide

The usual starting torsemide daily dose ranges from 5-10 mg (for hypertension) to 10-20 mg (for heart failure). The initial dose for treatment of heart failure or hypertension is 25 mg daily.

Combination Product: Stabilized doses of loop diuretic and finerenone

Treatment will be up to 80 mg furosemide or equivalent doses of other loop diuretics and 10 mg finerenone

Primary outcome measure

  • Comparing Net Clinical Benefit (NBC) of the FDC to finerenone with SBP reduction [ Time Frame: 12 weeks ]
  • Comparing Net Clinical Benefit (NBC) of the FDC to finerenone with UACR reduction [ Time Frame: 12 weeks ]
  • Comparing Net Clinical Benefit (NBC) of the FDC to finerenone with Serum K⁺ reduction [ Time Frame: 12 weeks ]

Central Contacts and Locations

Central contacts

Locations

Sarfez Pharmaceuticals, Inc.

Recruiting

Vienna, Virginia, United States, 22182

Contacts

Principal Investigator:

Sophia Shah, MD

More Information

Sponsor

Sarfez Pharmaceuticals, Inc.

Last update posted

Mar 9, 2026

Last verified

Mar, 2026

Keywords

  • radomized
  • two arm
  • parallel
  • torsemide
  • finerenone
  • spironolactone
  • fixed-dose combination
  • extended-release

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-09. This information was provided to ClinicalTrials.gov by Sarfez Pharmaceuticals, Inc. on 2026-03-09.