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RecruitingPhase 2

A Trial of CRD-4730 in HFrEF

Cardurion Pharmaceuticals, Inc. · NCT07750873

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Opens the official ClinicalTrials.gov record, with the study team’s contacts. Bored Studies doesn’t enroll anyone.

Key facts

Compensation
Not posted. Ask the study team before screening.
Who can join
Ages 18–85 · All sexes
Healthy volunteers
Not accepted (a condition is required)
Study type
Interventional · Phase 2
Target enrollment
525
US sites recruiting
2
Study start
July 15, 2026
Record last updated
August 6, 2026

Status re-checked against ClinicalTrials.gov within the last 12 hours.

What the study is about

CRD-4730 is a calcium/calmodulin-dependent protein kinase II (CaMKII) inhibitor. The CALIBRATE-HF trial is a Phase 2, global, multi-center, randomized, double-blind, parallel-group, placebo-controlled trial. The trial will evaluate the efficacy, safety, and tolerability of CRD-4730 in addition to guideline directed medical therapy in participants with heart failure with reduced ejection fraction (HFrEF). Participants will be randomized to 1 of 4 study groups and receive investigational study drug or placebo twice daily (BID) for 24 weeks of treatment.

Being studied: CRD-4730; Placebo

Conditions: Heart Failure With Reduced Ejection Fraction (HFrEF)

Eligibility criteria

Copied from the official record. The study team makes the final decision at screening.

Show full criteria

Inclusion Criteria

  • Adult male or female patient ≥ 18 years of age and ≤ 85 years of age at the time of screening.
  • Has a medical history supporting a diagnosis of clinical chronic heart failure (HF) syndrome with a duration of at least 8 weeks prior to the time of screening and current NYHA functional class II to III (based on investigator's assessment).
  • Has left ventricular ejection fraction ≤ 40% by a centrally read transthoracic echocardiogram performed during screening.
  • Has NT-proBNP level ≥ 600 pg/mL (70.8 pmol/L) at the time of screening. Patients in atrial fibrillation or flutter at the time of screening are required to have an NT-proBNP level of ≥ 900 pg/mL (106.4 pmol/L).
  • Is receiving optimized and stable guideline directed HF therapy (per applicable regional or national guidelines).

Exclusion Criteria

  • Has evidence of recent HF exacerbation defined by hospitalization or requirement for IV or SQ diuretics within 4 weeks of the time of screening or during the Screening Period.
  • Has a requirement for routine, scheduled outpatient IV infusions for HF (ie, inotropes, vasodilators, or diuretics) or routinely scheduled ultrafiltration.
  • Has acute coronary syndrome, unstable angina, persistent angina at rest, stroke, transient ischemic attack, cardiac, carotid or other major cardiovascular surgery, cardiac valve repair (surgical or nonsurgical) or surgical replacement, or carotid angioplasty within 8 weeks prior to screening or during the Screening Period.
  • Has clinical suspicion of infiltrative cardiomyopathy (eg, amyloid, sarcoid), hypertrophic cardiomyopathy (obstructive or non-obstructive), or HF secondary to severe valvular disease, active myocarditis, active pericarditis, or clinically significant congenital heart disease.

NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

Recruiting US locations

  • Cardurion Investigative Site

    Pasadena, CA 91105

    Site contact: Gregory Giesler · 626-793-1227 · gregory.giesler@profoundresearch.io

  • Cardurion Investigative Site

    Bloomfield Hills, MI 48304

    Site contact: Abdul-Rahman Halabi · 248-282-3639 · abdul.halabi@profoundresearch.io

Study contacts (from the official record)

  • Cardurion Pharmaceuticals · 617-863-8088 · ClinicalTrialsGov@cardurion.com
A Trial of CRD-4730 in HFrEF (NCT07750873) | Bored Studies