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Taking peoplePhase 2/3

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

Key facts

Who runs it
Kardigan, Inc.
Where
Brno, Brno-Stred, Brno-Zidenice, České Budějovice, and Prague, CzechiaSee the 5 sitesAlso in 8 other countries, 116 sites
Status
Recruiting
Phase
Phase 2/3
People taking part
1,276 people, planned
Started
27 Jun 2025
Expected to end
30 Sept 2030
Type of study
Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
Treatments tested
  • Ataciguat
  • Placebo
Record updated
6 July 2026

Who can take part

Age
50 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 12 criteriaShow less

Who can take part

  • 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 >300 to 1200 Agatston units (AU) for women and between >300 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 in CPET sub-study in Part A and all participants in Part B: If 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

Who cannot take part

  • Anticipated or planned prior aortic valve replacement, repair, surgery, or intervention in the next 6 months
  • 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)
  • Has suspected or known congenital aortic valve disease including bicuspid aortic valve
  • New York Heart Association (NYHA) Class IV heart failure symptoms and/or requires continuous inotropes
  • Has history of hypertrophic, genetic/familial cardiomyopathy or cardiomyopathy related to amyloid or sarcoid
  • Has untreated obstructive coronary artery disease or anticipating coronary stenting surgery
  • Has moderate, moderate-to-severe, or severe (Grade 2 or higher) mitral stenosis, mitral regurgitation, and/or aortic regurgitation
  • Abnormal electrocardiogram (ECG) results or long-standing persistent or permanent atrial fibrillation

Where in Czechia

Also in 8 other countries, 116 sites

  • Fakultni nemocnice BrnoBrno, CzechiaNot yet recruiting
  • Fakultni Nemocnice U Sv Anny V BrneBrno-Stred, CzechiaNot yet recruiting
  • Vojenska Nemocnice BrnoBrno-Zidenice, CzechiaNot yet recruiting
  • Nemocnice České Budějovice, a.s.České Budějovice, CzechiaNot yet recruiting
  • Vseobecna fakultni nemocnice v PrazePrague, CzechiaNot yet recruiting

About the trial

What the trial wants to find out

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

The 2 groups in the trial

  • AtaciguatTreatment being tested
  • PlaceboPlacebo, for comparison

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?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov and on the EU's official list of trials (CTIS).
Official title
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
Publications
Record updated
6 July 2026