NCT07223502 · Sarfez Pharmaceuticals, Inc.
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
(NEPHRON)
What this study is about
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.
View original scientific description
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.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Adult male and female patients aged ≥18 years;
- Are diagnosed with a CKD;
- Have an eGFR of ≥25 and ≤60 mL/min/1.72 m2;
- Have an UACR 150-3500 mg/g and Sk 4.5 to 5.0 mmol/L;
- Have an observed clinic seated systolic blood pressure (SBP) of ≥130 and ≤170 mmHg;
- 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;
- 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);
- Willing to use effective methods of contraception during sexual intercourse with an opposite sex throughout the study.
Exclusion criteria
- Have a diagnosis of type I diabetes mellitus (T1DM);
- Have uncontrolled hypertension (SBP \>170 mmHg);
- Have primary aldosteronism or endocrine disorders;
- Have serum potassium \>5.0 or \<4.5 mmol/L at screening;
- Unable to continue on 10 mg finerenone or require daily dose of more than 80mg furosemide or equivalent doses of other loop diuretics
- Have a recent diagnosis of acute kidney injury (≤3 months);
- 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;
- Had hospitalized for worsening heart failure in last 30 days;
- Have an autosomal dominant or recessive polycystic kidney disease;
- Have an Addison's disease;
- Have Hepatic insufficiency classified as Child-Pugh;
- Have a diagnosis of Lupus nephritis or anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis or any other kidney diseases requiring immunosuppressive therapy;
- Have a history of organ transplant;
- Require treatment with potassium-sparing diuretics;
- Have an active malignancy;
- Currently taking potassium supplement or potassium binders;
- Have known hypersensitivity to sulfonamides or related compounds or spironolactone or finerenone;
- Is pregnant, breastfeeding, or planning to become pregnant during the study;
- Have participated in another clinical study involving any investigational drug within 30 days prior to Screening;
- 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.
Where
- Vienna, Virginia
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Mar 9, 2026 · Source of record for eligibility and locations