Evaluating CK-4021586 for heart failure with preserved ejection fraction
Official title: A Multi-Center, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of CK-4021586 in Adults With Symptomatic Heart Failure With Preserved Ejection Fraction
Run by Cytokinetics · NCT06793371 · Data updated 2026-11-12
This study is testing a new medication for adults with heart failure and preserved ejection fraction to see if it is safe and what the best dose is to help improve their heart function and symptoms.
Quick facts
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 40 Years to 85 Years |
| Sex | All |
| Enrollment | 60 (estimated) |
| Sponsor | Cytokinetics Industry-sponsored |
| Locations | 26 sites (Fairhope, Alabama and 25 other locations) |
| Status | Recruiting |
| Started | February 6, 2025 |
| Main results expected | September 2026 |
| Study ends | September 2026 |
| Registry record updated | August 27, 2026 |
| Trial ID | NCT06793371 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are adults aged 40 to 85 with symptomatic HFpEF and specific echocardiographic and biomarker criteria.
✕Probably not a fit
Patients with significant comorbidities or those not meeting the eligibility criteria may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 2 interventional study aims to assess the safety and tolerability of CK-4021586 in adults diagnosed with symptomatic heart failure with preserved ejection fraction (HFpEF). Participants will receive varying doses of the medication or a placebo in a blinded manner to determine the most effective and safe dosage. The study will include individuals aged 40 to 85 years with specific heart failure criteria, ensuring a targeted approach to treatment. The trial is designed to gather data on the drug's effects on heart function and symptoms.
Why it matters
Potential benefit: If successful, this study could lead to a new treatment option for patients suffering from HFpEF, potentially improving their quality of life.
How similar studies have gone: While this approach is being explored in this specific context, similar studies have shown promise in evaluating treatments for HFpEF.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Males and females ≥ 40 years and ≤ 85 years of age at screening. * Diagnosed with HF with NYHA functional class II or III. * Screening echocardiography with LVEF ≥ 60%. * Screening NT-proBNP ≥ 300 pg/mL for participants in sinus rhythm and ≥ 900 pg/mL for participants with comorbid atrial fibrillation or flutter. * Body mass index \< 40 kg/m2. * Participants on beta-blockers, angiotensin-converting enzyme (ACE)/angiotensin II receptor blocker (ARB) or angiotensin receptor/neprilysin inhibitor (ARNI), must be on stable doses for more than 30 days prior to screening. * Participants on a glucagon-like peptide-1 (GLP-1) agonist must be on a stable dose for more than 24 weeks prior to screening with no anticipated plans to change dose during this study. Exclusion Criteria: * History or evidence of any other clinically significant disorder, malignancy, active infection, other condition, or disease that, in the opinion of the investigator or the Medical Monitor, would pose a risk to patient safety or interfere with the study evaluation, procedures, or completion. * Other protocol-defined Inclusion/Exclusion criteria apply.
Where it's running
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Eastern Shore Research Institute, LLC
Fairhope, Alabama, United States Recruiting -
University of Arizona Sarver Heart Center
Tucson, Arizona, United States Recruiting -
John L. McClellan Memorial Veterans Hospital
Little Rock, Arkansas, United States Recruiting -
BioSolutions Clinical Research Center
Imperial, California, United States Recruiting -
Profound Research LLC
Pasadena, California, United States Recruiting -
University of California, San Francisco - Heart and Vascular Center
San Francisco, California, United States Recruiting
Show 20 more locations
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FOMAT - Comprehensive Cardiovascular Care
Santa Maria, California, United States Recruiting -
Blue Coast Research Center, LLC
Vista, California, United States Recruiting -
Las Mercedes Medical Research
Hialeah, Florida, United States Recruiting -
New Generation of Medical Research
Hialeah, Florida, United States Recruiting -
Cleveland Clinic Florida
Weston, Florida, United States Recruiting -
Methodist Medical Center of Illinois
Peoria, Illinois, United States Recruiting -
Massachusetts General Hospital
Boston, Massachusetts, United States Recruiting -
Mayo Clinic
Rochester, Minnesota, United States Recruiting -
Washington University Center for Advanced Medicine
St Louis, Missouri, United States Recruiting -
Morristown Medical Center
Morristown, New Jersey, United States Recruiting -
NYU Langone Health
New York, New York, United States Recruiting -
Mount Sinai West
New York, New York, United States Recruiting -
The Lindner Center for Research & Education at The Christ Hospital
Cincinnati, Ohio, United States Recruiting -
Oregon Health and Science University
Portland, Oregon, United States Recruiting -
University of Texas Southwestern Medical Center, Dallas
Dallas, Texas, United States Recruiting -
Center for Advanced Heart Failure
Houston, Texas, United States Recruiting -
Swedish Heart & Vascular Institute, Advanced Cardiac Support Program
Seattle, Washington, United States Recruiting -
Froedtert Hospital - Center for Advanced Care
Milwaukee, Wisconsin, United States Recruiting -
Louisiana Heart Center
Slidell, Louisiana, United States Withdrawn -
DelRicht Research
Vienna, Virginia, United States Withdrawn
Study contacts
- Study coordinator: Cytokinetics MD
- Email: medicalaffairs@cytokinetics.com
- Phone: 650-624-2929
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Renal Nerve Stimulation to Help Blood Pressure in AF and HFpEF
This study tests whether stimulating the kidneys with a catheter can safely lower blood pressure in adults with atrial fibrillation and HFpEF who also have hypertension.
-
Cardio-Metabolic Clinic care for adults with type 2 diabetes and cardiovascular disease
This trial tests whether a specialized Cardio-Metabolic Clinic can improve heart function and overall health for adults with type 2 diabetes and cardiovascular disease compared with usual care.
-
Optimised Cardio-Renal Care for CKD and heart disease
This study tests whether a specialised Cardio-Renal Clinic can improve heart and kidney health and quality of life for adults with chronic kidney disease and cardiovascular disease.
-
Resmetirom for MASH with HFpEF in adults
This study tests whether resmetirom can be given safely and show liver-related effects in adults with MASH and heart failure with preserved ejection fraction over 24 weeks.
-
Elecoglipron vs placebo for adults with HFpEF or HFmrEF
This Phase 3 study tests whether elecoglipron helps people with HFpEF or HFmrEF who are on dapagliflozin and standard care.
-
Iron infusion and MRI to study inflammation in HFpEF
A small early-phase study tests whether an iron infusion affects heart inflammation in people with HFpEF, using MRI measures before and after treatment.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.