Clinical trial Recruiting at 24 sites Phase 2 Interventional Ages 40 to 85

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.

More Heart Failure With Preserved Ejection Fraction trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages40 Years to 85 Years
SexAll
Enrollment60 (estimated)
SponsorCytokinetics
Industry-sponsored
Locations26 sites (Fairhope, Alabama and 25 other locations)
StatusRecruiting
StartedFebruary 6, 2025
Main results expectedSeptember 2026
Study endsSeptember 2026
Registry record updatedAugust 27, 2026
Trial IDNCT06793371 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

  • 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
  • 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • 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.

    Recruiting London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's · London, Ontario · NCT07893821

  • 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.

    Recruiting Odense University Hospital · Svendborg · NCT07878325

  • 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.

    Recruiting Odense University Hospital · Svendborg · NCT07835828

  • 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.

    Recruiting at 5 sites Phase 1 Madrigal Pharmaceuticals, Inc. · Peoria, Arizona and 4 other locations · NCT07830758

  • 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.

    Recruiting at 24 sites Phase 3 AstraZeneca · Fairhope, Alabama and 678 other locations · NCT07761117

  • 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.

    Recruiting Early Phase 1 University of Florida · Gainesville, Florida · NCT07634640

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
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Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.