RecruitingPhase 2Phase 3NCT07001800

Ataciguat for Slowing the Progression of Moderate Calcific Aortic Valve Stenosis: A Randomized, Placebo Controlled Study

A Phase 2b/3, Randomized, Double-Blinded, Placebo Controlled Study ChecKing the Efficacy and Safety of ATAciguat to Slow the Progression of VaLvular DYsfunction in Participants With Moderate Calcific Aortic Valve STenosis


Sponsor

Kardigan, Inc.

Enrollment

1,276 participants

Start Date

Jun 27, 2025

Study Type

INTERVENTIONAL

Conditions

Summary

The purpose of this study is to evaluate if ataciguat slows the progression of moderate calcific aortic valve stenosis in adults.


Eligibility

Min Age: 50 Years

Inclusion Criteria6

  • Adult male or female at least 50 years of age
  • Has moderate CAVS as defined by:
  • An AVA of ≥1.0 cm2 to ≤1.50 cm2
  • An AVC score between ≥600 to 1200 Agatston units (AU) for women and between ≥600 to 2000 AU for men
  • Has a left ventricular ejection fraction (EF) of ≥45% at the time of Screening as determined by the echocardiography Imaging Core Laboratory
  • For participants on beta blockade, the dose must be stable for at least 90 days prior to the Screening Visit with no anticipated changes during the study

Exclusion Criteria8

  • For participants in the CPET sub-study in Part A and all participants in Part B: Has any medical or physical condition that, in the Investigator's opinion, could lead to an inability to complete Protocol-required CPET procedures (eg, pulmonary disease, joint, leg, hip, back conditions that limit physical activity, or other absolute contraindications for CPET)
  • Anticipated or planned prior aortic valve replacement, repair, surgery, or intervention in the next 6 months
  • Has moderate, moderate-to-severe, or severe (Grade 2 or higher) mitral stenosis, mitral regurgitation, and/or aortic regurgitation
  • Has suspected or known congenital aortic valve disease including bicuspid aortic valve
  • New York Heart Association (NYHA) Class III or Class IV
  • Has a primary etiology for heart failure other than aortic valve disease
  • Has coronary artery disease or anticipating coronary stenting surgery
  • Abnormal electrocardiogram (ECG) results or long-standing persistent or permanent atrial fibrillation

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Interventions

DRUGAtaciguat

Ataciguat will be administrated daily for up to 156 weeks

DRUGPlacebo

Placebo will be administrated daily for up to 156 weeks


Locations(58)

University of Alabama at Birmingham (UAB) - Medical Center

Birmingham, Alabama, United States

Heart Center Research LLC

Huntsville, Alabama, United States

Onyx Clinical Research - Peoria

Peoria, Arizona, United States

National Heart Institute

Beverly Hills, California, United States

Hoag Memorial Hospital Presbyterian

Newport Beach, California, United States

Profound Research LLC at Southern California Heart Specialists

Pasadena, California, United States

University of California, San Francisco (UCSF) - Medical Center

San Francisco, California, United States

Lundquist Institute for Biomedical Innovation at Harbor UCLA Medical Center

Torrance, California, United States

HCA Florida - JFK Hospital

Atlantis, Florida, United States

New Generation of Medical Research

Hialeah, Florida, United States

Memorial Healthcare System

Hollywood, Florida, United States

Jacksonville Center for Clinical Research

Jacksonville, Florida, United States

University of Miami

Miami, Florida, United States

New Generation of Medical Research - Naples

Naples, Florida, United States

Sarasota Memorial Hospital

Sarasota, Florida, United States

University of South Florida

Tampa, Florida, United States

Wellstar Kennestone Hospital

Marietta, Georgia, United States

Northwestern University The Feinberg School of Medicine

Chicago, Illinois, United States

NorthShore University Health System

Glenview, Illinois, United States

Midwest Cardiovascular Institute

Naperville, Illinois, United States

Methodist Medical Center of Illinois

Peoria, Illinois, United States

Prairie Education and Research Cooperative

Springfield, Illinois, United States

St. Vincent Medical Group, Inc.

Carmel, Indiana, United States

University of Iowa Health Care

Iowa City, Iowa, United States

University of Louisville Health

Louisville, Kentucky, United States

University of Maryland Medical Center

Baltimore, Maryland, United States

Johns Hopkins University School of Medicine

Baltimore, Maryland, United States

Massachusetts General Hospital

Boston, Massachusetts, United States

Brigham and Women's Hospital

Boston, Massachusetts, United States

Corewell Health

Royal Oak, Michigan, United States

Henry Ford Hospital

West Bloomfield, Michigan, United States

Mayo Clinic - Rochester

Rochester, Minnesota, United States

Washington University

St Louis, Missouri, United States

Atlantic Health System - Morristown Medical Center

Morristown, New Jersey, United States

Inspira Medical Center of Vineland

Vineland, New Jersey, United States

Albany Medical Center

Albany, New York, United States

University of Buffalo

Buffalo, New York, United States

Montefiore Medical Center

The Bronx, New York, United States

Duke University School of Medicine

Durham, North Carolina, United States

Moses H. Cone Memorial Hospital Operating Corporation d/b/a Cone Health

Greensboro, North Carolina, United States

Sanford Fargo

Fargo, North Dakota, United States

The Lindner Center for Research and Education at The Christ Hospital

Cincinnati, Ohio, United States

Cleveland Clinic

Cleveland, Ohio, United States

Ascension St. John Jane Phillips Hospital

Bartlesville, Oklahoma, United States

Ascension St. John Hospital

Tulsa, Oklahoma, United States

University of Pennsylvania

Philadelphia, Pennsylvania, United States

University of Pittsburgh Medical Center

Pittsburgh, Pennsylvania, United States

Medical University of South Carolina (MUSC)

Charleston, South Carolina, United States

OnSite Clinical Solutions, LLC - Rock Hill

Rock Hill, South Carolina, United States

TriStar Centennial Medical Center

Nashville, Tennessee, United States

Ascension Saint Thomas Heart Midtown

Nashville, Tennessee, United States

Vanderbilt University Medical Center

Nashville, Tennessee, United States

St. David's Heart and Vascular dba Austin Heart - Main Office

Austin, Texas, United States

Houston Methodist Hospital

Houston, Texas, United States

Baylor Scott and White - The Heart Hospital Baylor Plano

Plano, Texas, United States

Methodist Hospital - San Antonio

San Antonio, Texas, United States

Houston Methodist Sugar Land Hospital

Sugar Land, Texas, United States

University of Utah Hospital & Clinics

Salt Lake City, Utah, United States

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NCT07001800


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