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Taking people in United StatesPhase 2

Tests CK-4021586 in adults with heart failure and preserved ejection fraction

Tests different doses of CK-4021586 against placebo in adults with heart failure.

Plain-language title generated from the registry record
Registry title: AMBER-HFpEF: Assessment of CK-4021586 in a Multi-Center, Blinded Evaluation of Safety and Tolerability Results in HFpEF

Key facts

Where
Boston, Cincinnati, Dallas, Fairhope, Hialeah, Houston, Imperial, Little Rock, Milwaukee, Morristown, New York, Pasadena, Peoria, Portland, Rochester, San Francisco, Santa Maria, Seattle, Slidell, St Louis, Tucson, Vienna, Vista, and Weston, United StatesSee the 26 sites
Phase
Phase 2

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 40 and 85 years old?

Source: NCT06793371, who can take part

Where in United States

  • Massachusetts General HospitalBoston, United StatesTaking people
  • The Lindner Center for Research & Education at The Christ HospitalCincinnati, United StatesTaking people
  • University of Texas Southwestern Medical Center - DallasDallas, United StatesTaking people
  • Eastern Shore Research Institute, LLCFairhope, United StatesTaking people
  • Las Mercedes Medical ResearchHialeah, United StatesTaking people
  • New Generation of Medical ResearchHialeah, United StatesTaking people
  • Center for Advanced Heart FailureHouston, United StatesTaking people
  • BioSolutions Clinical Research CenterImperial, United StatesTaking people
  • John L McClellan Memorial Veterans HospitalLittle Rock, United StatesTaking people
  • Froedtert Hospital - Center for Advanced CareMilwaukee, United StatesTaking people
  • Morristown Medical CenterMorristown, United StatesTaking people
  • Mount Sinai WestNew York, United StatesTaking people
  • NYU Langone HealthNew York, United StatesTaking people
  • Profound Research LLCPasadena, United StatesTaking people
  • Methodist Medical Center of IllinoisPeoria, United StatesTaking people
  • Oregon Health and Science UniversityPortland, United StatesTaking people
  • Mayo ClinicRochester, United StatesTaking people
  • University of California, San Francisco - Heart and Vascular CenterSan Francisco, United StatesTaking people
  • FOMAT - Comprehensive Cardiovascular CareSanta Maria, United StatesTaking people
  • Swedish Heart & Vascular Institute, Advanced Cardiac Support ProgramSeattle, United StatesTaking people
  • Louisiana Heart CenterSlidell, United StatesNo longer taking part
  • Washington University Center for Advanced MedicineSt Louis, United StatesTaking people
  • University of Arizona Sarver Heart CenterTucson, United StatesTaking people
  • DelRicht ResearchVienna, United StatesNo longer taking part
  • Blue Coast Research Center LLCVista, United StatesTaking people
  • Cleveland Clinic FloridaWeston, United StatesTaking people

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?
Print a page for my doctor

Trial details

Who runs it
Cytokinetics
Trial code
NCT06793371EU 2024-516349-38-00
Record updated
27 August 2026
Original description
This is a Phase 2 dose-finding study in adult participants with symptomatic HFpEF.Read full original descriptionShow less

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

This is a Phase 2 dose-finding study in adult participants with symptomatic HFpEF.

Inclusion: 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: 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.

ClinicalTrials.gov NCT06793371 · EU CTIS 2024-516349-38-00