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CompletedNCT05901831FINE-ONEUpdated Oct 21, 2025

A Study to Learn How Well the Study Treatment Finerenone Works and How Safe it is in People With Long-term Decrease in the Kidneys' Ability to Work Properly (Chronic Kidney Disease) Together With Type 1 Diabetes

A Phase 3 interventional study of Finerenone and Placebo in Chronic Kidney Disease and Type 1 Diabetes Mellitus, sponsored by Bayer. Completed at 80 sites in 9 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-10-21.

Sponsored by Bayer · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was Aug 2025, 1 year 1 month ago, and no results have been posted to the registry.
Phase
Phase 3
Study type
Interventional
Enrollment
241
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Researchers are looking for a better way to treat people with chronic kidney disease (CKD), a progressive decrease in the kidneys' ability to work properly, and type 1 diabetes.

In people with type 1 diabetes, the body does not make enough of a hormone called insulin, resulting in high blood sugar levels that can cause damage to the kidneys. CKD often occurs together with or as a consequence of type 1 diabetes.

The study treatment finerenone works by blocking certain proteins, called mineralocorticoid receptors. An increased stimulation of these proteins is thought to damage the kidneys and the heart. By lowering their stimulation, finerenone reduces the risk of kidney disease progressively getting worse. Finerenone is approved for doctors to prescribe to people with CKD and type 2 diabetes.

In this study, researchers want to learn if finerenone works better than placebo in reducing the participants' kidney disease from getting worse when given in addition to standard of care (SOC) treatment. A placebo looks like a treatment but does not have any medicine in it. SOC is a procedure or treatment that medical experts consider most appropriate for a condition or disease. To find out how well finerenone works, the level of a protein (albumin) in the urine will be measured.

Researchers also want to know how safe finerenone is. To do this, the researchers will collect the number of participants with:

  • medical problems (also called treatment-emergent adverse events (TEAEs))
  • serious TEAEs. An TEAE is considered 'serious' when it leads to death, puts the participant's life at risk, requires hospitalization, causes disability, causes a baby being born with medical problems, or is medically important
  • higher than normal blood levels of potassium (hyperkalaemia). Depending on the treatment group, the participants will either take finerenone or placebo, Importantly, the participants will also continue to take their regular SOC medicines.

The participants will be in the study for up to 7.5 months and will take the study treatments for 6 months. During the study, they will visit the study site at least 6 times.

The study team will:

  • collect blood and urine samples
  • check the participants' vital signs such as blood pressure and heart rate
  • do a physical examination including height and weight
  • check the participants' heart health by using an electrocardiogram (ECG)
  • do pregnancy tests in women of childbearing potential
02

Conditions studied

  • Chronic Kidney Disease
  • Type 1 Diabetes Mellitus
03

In context

Renal Insufficiency, Chronic

3,144 studies on the registry are indexed under Renal Insufficiency, Chronic; 704 are open to participants now.

This study's enrollment of 241 is above the median of 74 across 2,176 interventional studies indexed under Renal Insufficiency, Chronic.

Browse Renal Insufficiency, Chronic studies →

Lead sponsor

Bayer is the lead sponsor of 1,643 studies on the registry; 57 are open to participants now.

Of its 209 completed or terminated interventional studies of FDA-regulated products, 129 (62%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Participant must be ≥18 years of age (or the legal age of consent according to local legislation) at the time of signing the informed consent.
  • Participants with Type 1 diabetes (T1D), i.e. T1D continuously treated with insulin, started within one year from diagnosis.

    • If the onset was after age 35, documentation of the presence of one or more of the following:

      • Circulating T1D-associated autoantibodies
      • Hospitalization for diabetic ketoacidosis
      • Plasma C-peptide below the limit of detection with standard assay (with concurrent blood glucose >100 mg/dl).
  • HbA1c at Screening \<10% (central assessment).

    • Note: One reassessment is allowed for HbA1c during the Screening period in case the first measurement is missing/unreadable/invalid.
  • K+ ≤ 4.8 mmol/L at Screening (local assessment)
  • Participants with a clinical diagnosis of CKD and fulfilling both the criteria (central assessment):

    • eGFR ≥25 and \<90 mL/min/1.73 m\^2 using CKD-EPI (Chronic Kidney Disease Epidemiology Collaboration) 2009 formula at the Screening visit
    • UACR ≥200 mg/g (22.6 mg/mmol) to \<5000 mg/g (565 mg/mmol) at the Screening visit (geometric mean of the 3 measurements)
  • Participants on a stable (preferably without any change in the dosage for at least 4 weeks prior to the Screening visit) ACEI (Angiotensin-converting enzyme inhibitor) or ARB (Angiotensin receptor blocker) treatment.

Exclusion criteria

Exclusion Criteria:

  • Participant with T2D (Type 2 diabetes).
  • Participant with mean BP (Blood pressure) higher than 160/100 mmHg or mean systolic BP lower than 90 mmHg at the Screening visit
  • Symptomatic heart failure with reduced ejection fraction with class 1A indication for Mineralocorticoid receptor antagonists (MRAs).
  • Participants with current or previous (within 8 weeks prior to the Screening visit) treatment with a SGLT-2/-1 (Sodium-Glucose co-transporter-2/-1) inhibitor or GLP1 (Glucagon-like peptide-1) receptor agonist.
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
241 participants (actual)

Study arms

  • Experimental
    Finerenone arm

    Participants with eGFR ≥25 to \<60 mL/min/1.73 m\^2 at Screening visit will take Finerenone Dose A. Participants with eGFR ≥60 mL/min/1.73 m\^2 at Screening visit will take Dose B. Up-titration and down-titration of study intervention will be based on local potassium and kidney function (eGFR) values. Treatment duration is 6 months.

    Drug: Finerenone

  • Placebo comparator
    Placebo arm

    Participants will take Finerenone matching placebo for 6 months.

    Other: Placebo

Interventions

  • DrugFinerenone

    Dose A, Dose B, oral

  • OtherPlacebo

    Oral

06

What researchers measure

Primary outcomes

  1. Change in Urinary albumin-to-creatinine ratio (UACR)

    UACR will be assessed by the Central laboratory.

    Time frame: From baseline up to 6 months

Secondary outcomes

  1. Number of participants with treatment-emergent adverse events (TEAEs), Treatment-emergent serious adverse event (TESAEs)

    Time frame: From baseline up to 7 months

  2. Number of participants with Hyperkalaemia

    Hyperkalemia will be an adverse events of special interest (AESI).

    Time frame: From baseline up to 7 months

07

Study locations

80 sites
  • Southwest Kidney Institute, PLC - Suprise
    Surprise, Arizona 85374, United States
  • Stanford Endocrinology Clinic
    Stanford, California 94305, United States
  • Touro University California - Metabolic Research Center
    Vallejo, California 94592, United States
  • UHealth Diabetes Research Center
    Miami, Florida 33136, United States
  • AdventHealth Translational Research Institute
    Orlando, Florida 32804, United States
  • Elixia Central Florida
    Orlando, Florida 32806, United States
  • Hanson Clinical Research Center, Inc.
    Port Charlotte, Florida 33952, United States
  • Jedidiah Clinical Research
    Tampa, Florida 33619, United States
  • Metabolic Research Institute, Inc.
    West Palm Beach, Florida 33401, United States
  • Grady Memorial Hospital - Endocrinology
    Atlanta, Georgia 30303, United States
  • Northwestern University | Feinberg School of Medicine - Division of Endocrinology, Metabolism and Molecular Medicine
    Chicago, Illinois 60611, United States
  • UChicago Medicine Kovler Diabetes Center
    Chicago, Illinois 60637, United States
  • Preventive Intervention Center - Endocrinology
    Iowa City, Iowa 52202, United States
  • Wichita Nephrology Group Pa
    Wichita, Kansas 67214, United States
  • Diabetes & Metabolism Associates
    Metairie, Louisiana 70006, United States
  • MedStar Health Research Institute
    Hyattsville, Maryland 20782, United States
  • Joslin Diabetes Center
    Boston, Massachusetts 02215, United States
  • MU Health Care - University Hospital - Endocrinology
    Columbia, Missouri 65212, United States
  • Washington University School of Medicine in St. Louis
    St Louis, Missouri 63110-1010, United States
  • UNC Endocrinology, Diabetes, and Obesity Clinical Research Unit
    Chapel Hill, North Carolina 27514, United States
  • Physicians East, P.A.- W. H. Smith - Endocrinology
    Greenville, North Carolina 27834, United States
  • Accellacare - Wilmington
    Wilmington, North Carolina 28401, United States
  • Cleveland Clinic - Main Campus
    Cleveland, Ohio 44195, United States
  • OHSU Physicians Pavillion - Endocrinology
    Portland, Oregon 97239, United States
  • UT Health San Antonio - Medical Arts & Research Center - Endocrinology
    San Antonio, Texas 78229, United States
  • Consano Clinical Research, LLC.
    San Antonio, Texas 79231, United States
  • EVMS Strelitz Diabetes Center
    Norfolk, Virginia 23510, United States
  • Providence Medical Research Center
    Spokane Valley, Washington 99204, United States
  • Richmond Road Diagnostic and Treatment Centre - Clinical Trials Unit(RRDTC)
    Calgary, Alberta T2T 5C7, Canada
  • Alberta Diabetes Institute - Clinical Research Unit (CRU)
    Edmonton, Alberta T6G 2E1, Canada
  • Toronto General Hospital - University Health Network, Renal Physiology laboratory
    Toronto, Ontario M5G 2C4, Canada
  • Centre de Recherche Clinique de Laval
    Laval, Quebec H7T 2P5, Canada
  • McGill University Health Centre (MUHC) - Research Institute (RI) - McConnell Centre for Innovative Medicine (CIM)
    Montreal, Quebec H4A 3J1, Canada
  • Zhongshan People's Hospital
    Zhongshan, Guangdong 528499, China
  • The 4th Affiliated Hospital of Harbin Medical University
    Harbin, Heilongjiang 150001, China
  • The Central Hospital of Wuhan, Tongji Medl Collg Huazhong...
    Wuhan, Hubei 430014, China
  • Affiliated Hospital of Jiangsu University
    JiangSu, Jiangsu 212001, China
  • Shanxi Bethune Hospital
    Taiyuan, Shanxi 030032, China
  • Peking University People's Hospital
    Beijing, 100032, China
  • Southern Medical University - Nanfang Hospital (Southern Hospital)
    Guangzhou, 510515, China
  • Huai'an First People's Hospital, Nanjing Medical University
    Huai'an, 223300, China
  • Nanjing Medical University (NMU) - The Second Affiliated Hospital
    Nanjing, 210011, China
  • Shanghai Jiao Tong University (SJTU) - Shanghai General Hospital (Shanghai First People's Hospital) - Northern Location
    Shanghai, 200080, China
  • Central Hospital of Minhang District, Shanghai
    Shanghai, 201100, China
  • Zhongshan Hospital Fudan University, Qingpu Branch
    Shanghai, 201700, China
  • Hospital of South West Jutland | Department of Endocrinology Research
    Esbjerg, 6700, Denmark
  • Region Nordjylland | Steno Diabetes Center Nordjylland - Endocrinology Department
    Gistrup, 9260, Denmark
  • Steno Diabetes Center Copenhagen | Herlev - Clinical and Translational Research Department
    Herlev, 2730, Denmark
  • Region Midtjylland | Regionshospitalet Godstrup - Nephrology Department
    Herning, DK-7400, Denmark
  • Capital Region | Nordsjaellands Hospital - Hillerod - Endocrinology Ambulatory Research Unit
    Hillerød, 3400, Denmark
  • Odense University Hospital | Odense - Endocrinology Department
    Odense, 5000, Denmark
  • InnoDiab Forschung GmbH
    Essen, North Rhine-Westphalia 45136, Germany
  • Ruhr-Universitaet Bochum - Herz und Diabeteszentrum NRW (Heart and Diabetes Center)
    Bad Oeynhausen, 32545, Germany
  • Azienda Ospedaliero-Universitaria Di Bologna IRCCS_Policlinico Sant'Orsola - Endocrinologia e prevenzione e cura del diabete
    Bologna, Emilia-Romagna 40138, Italy
  • Fondazione Policlinico Universitario Agostino Gemelli IRCCS - UOSD Diabetologia
    Rome, Lazio 00168, Italy
  • Careggi University Hospital - Diabetologia e Malattie del Metabolismo
    Florence, Tuscany 50134, Italy
  • ASST Papa Giovanni XXIII | Ospedale di Bergamo - SC Malattie Endocrine-Diabetologia
    Bergamo, 24127, Italy
  • Azienda Sanitaria Locale di Chieri | TO5 - SC Diabetologia Territoriale
    Chieri, 10023, Italy
  • Università degli Studi "G. D'Annunzio" di Chieti - Endocrinologia
    Chieti, 66100, Italy
  • IRCCS Ospedale San Raffaele | Diabetologia Department - Cardio-Metabolic and Clinica Trials Unit
    Milan, 20132, Italy
  • ASST Santi Paolo e Carlo | San Paolo Hospital - Haemostasis and Thrombosis Department
    Milan, 20142, Italy
  • ASST Fatebenefratelli Sacco _Ospedale Sacco - Malattie Endocrine e Diabetologia
    Milan, 20157, Italy
  • Severance Hospital, Yonsei University Health System
    Seoul, Seoul Teugbyeolsi 03722, South Korea
  • Asan Medical Center - Oncology Department
    Seoul, Seoul Teugbyeolsi 05505, South Korea
  • Seoul National University Hospital
    Seoul, Seoul Teugbyeolsi 3080, South Korea
  • Korea University Anam Hospital
    Seoul, 02841, South Korea
  • Samsung Medical Center
    Seoul, 06351, South Korea
  • Gerencia de Gestion Integrada A Coruna | Department of Endocrinology and Nutrition
    A Coruña, A Coruña 15006, Spain
  • Hospital Nisa Sevilla Aljarafe - Endocrinologia
    Castilleja de la Cuesta, Sevilla 41950, Spain
  • Hospital Clinic de Barcelona | Instituto Clinic de Enfermedades Digestivas y Metabolicas - Endocrinologia y Nutricion
    Barcelona, 08036, Spain
  • Hospital Gregorio Maranon | Endocrinology Department
    Madrid, 28007, Spain
  • Hospital Universitario Puerta De Hierro De Majadahonda - Endocrinologia
    Majadahonda, 28222, Spain
  • Hospital Universitario Virgen De La Victoria - Endocrinologia
    Málaga, 29010, Spain
  • North Bristol NHS Trust | Southmead Hospital - Clinical Research Centre
    Bristol, BS10 5NB, United Kingdom
  • Cardiff and Vale University Health Board | University Hospital of Wales - Nephrology and Transplant
    Cardiff, CF14 4XW, United Kingdom
  • University Hospitals of Derby and Burton NHS Foundation Trust | Royal Derby Hospital - Renal Research
    Derby, DE22 3NE, United Kingdom
  • NHS Greater Glasgow and Clyde (NHSGGC) - Glasgow Royal Infirmary (GRI)
    Glasgow, G4 0SF, United Kingdom
  • Barts Health NHS Trust - Royal London Hospital - Nephrology
    London, E1 1BB, United Kingdom
  • Manchester University NHS Foundation Trust | Wythenshawe Hospital - Clinical Research Facility
    Manchester, M23 9LT, United Kingdom
  • Walsall Healthcare NHS Trust | Manor Hospital - Nephrology
    Walsall, WS2 9PS, United Kingdom
08

References and documents

Publications

  • Heerspink HJL, Birkenfeld AL, Cherney DZI, Colhoun HM, Groop PH, Ji L, Jongs N, Mathieu C, Pratley RE, Rosas SE, Rossing P, Skyler JS, Tuttle KR, Lawatscheck R, Brinker M, Scheerer MF, Russell J, Schloemer P, McGill JB; FINE-ONE Investigators. Finerenone in Type 1 Diabetes and Chronic Kidney Disease. N Engl J Med. 2026 Mar 5;394(10):947-957. doi: 10.1056/NEJMoa2512854. PubMed 41780000 ↗
  • Kugathasan L, Aronson Y, Sridhar VS, Ni H, Ouimet JP, Limonte CP, Sarma S, Cherney DZI. Advancing kidney protection in type 1 diabetes: insights from emerging therapies in type 2 diabetes and chronic kidney disease. Expert Rev Clin Immunol. 2025 Aug;21(8):1113-1134. doi: 10.1080/1744666X.2025.2537446. Epub 2025 Jul 24. PubMed 40693871 ↗
  • Heerspink HJL, Birkenfeld AL, Cherney DZI, Colhoun HM, Ji L, Mathieu C, Groop PH, Pratley RE, Rosas SE, Rossing P, Skyler JS, Tuttle KR, Lawatscheck R, Scott C, Edfors R, Scheerer MF, Kolkhof P, McGill JB. Rationale and design of a randomised phase III registration trial investigating finerenone in participants with type 1 diabetes and chronic kidney disease: The FINE-ONE trial. Diabetes Res Clin Pract. 2023 Oct;204:110908. doi: 10.1016/j.diabres.2023.110908. Epub 2023 Oct 5. PubMed 37805000 ↗

Individual participant data

Plan to share: No — Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014. Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 21, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT05901831
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Jun 13, 2023
Start date
Feb 26, 2024
Primary completion
Aug 20, 2025
Completion
Sep 15, 2025
Last update
Oct 21, 2025

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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