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Aortic StenosisPhase 4ARBASNCT04913870

Angiotensin Receptor Blockers in Aortic Stenosis

A Phase 4 study testing Angiotensin Receptor Blockers in people with Aortic Stenosis and Aortic Valve Stenosis, run by Institut universitaire de cardiologie et de pneumologie de Québec, University Laval at 2 sites in 2 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This study is intended to investigate the effect of angiotensin receptor blockers (ARBs) on mild-to-moderate aortic stenosis. Read more about this study

Who is it for?
Ages 20 to 99 years
Conditions the study is for
Aortic Stenosis, Aortic Valve Stenosis
What is being tested?
Angiotensin Receptor Blockers
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
144 participants
Where
2 sitesin 2 countries
Study dates
1 Feb 2020to Feb 2027
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 20 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Mild to moderate aortic stenosis (peak aortic jet velocity ≥2.5 and <4m/s)
  • Normal left ventricular ejection fraction (i.e. ≥50%)
  • Systolic blood pressure >110 mmHg
  • Diastolic blood pressure >70 mmHg

Who cannot join

  • More than mild aortic or mitral regurgitation, or mitral stenosis
  • Current use or documented indication for renin-angiotensin system medication or Aliskiren
  • Known allergy or intolerance to angiotensin II receptor blockers (ARBs)
  • Alzheimer, dementia or known non-compliant patient
  • Renal dysfunction (glomerular filtration rate <30ml/min/1.73m2)
  • Chronic hyperkalemia
Show all 11Show fewer
  • Diagnosed hepatic failure, cirrhosis, hepatitis or history of hepatic impairment
  • Newly diagnosed (<2 months) or poorly controlled diabetes
  • Pre-existing obstructive coronary artery disease with CCS III-IV angina or recent myocardial infarction (<3 months)
  • Pregnant or lactating women
  • Patients unable to read, understand or sign research consent

Trial locations and contacts

2 sites in 2 countries. Contact the study team or a site near you to ask about taking part.

2 sites in 2 countries

Canada1 site, 1 recruiting
  • CRIUCPQ

    Québec, Quebec, G1V 4G5

    Marie-Annick Clavel, PhD, 418-656-8711 ext. 2678, Marie-Annick.Clavel@criucpq.ulaval.ca

    418-656-8711 ext. 3868

    Recruiting

Other trials in Canada

Denmark1 site, 1 recruiting
  • Odense University Hospital

    Odense

    Ali Mulham, MD, +4560677621, Mulham.Ali2@rsyd.dk

    Jordi Sanchez Dahl, MD, PhD

    Recruiting

Other trials in Denmark

About this study

Official title: Impact of Angiotensin Receptor Blockers in Aortic Stenosis - a Randomized Controlled Trial

This study is intended to investigate the effect of angiotensin receptor blockers (ARBs) on mild-to-moderate aortic stenosis.

Read the detailed description

Studies support the concept that activation of the renin-angiotensin system may be involved in the progression of valve stenosis and myocardial fibrosis in aortic stenosis. Furthermore recent studies have shown that renin-angiotensin system medication may slow down aortic stenosis progression rate and left ventricle remodeling.

Thus the present study is a randomized control trial to test the efficacy of the angiotensin receptor blocker (ARB) to slow down aortic stenosis progression and left ventricular remodeling/dysfunction in patients with mild-to-moderate aortic stenosis.

Being tested
Angiotensin Receptor Blockers, Placebo
Keywords
Angiotensin II Receptor Blockers, Left ventricular remodeling, Valvular heart disease, Aortic stenosis
Medical subject headings
Aortic Valve Stenosis, Ventricular Remodeling, Heart Valve Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Angiotensin Receptor BlockersDrug

    Angiotensin Receptor Blockers treatment for 2 years.

  • PlaceboOther

    Placebo administration for 2 years.

Study groups in NCT04913870
Study groupRoleWhat they receive
Angiotensin Receptor BlockersExperimentalAngiotensin Receptor Blockers will be given orally once a day for 2 years.
Receives: Drug: Angiotensin Receptor Blockers
PlaceboPlacebo comparatorParticipants will receive a matched placebo orally once a day for 2 years.
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in the anatomic progression of aortic stenosis

    Aortic valve calcification (measured by MDCT)

    Measured: Baseline, 2 years

Secondary outcomes (5)
  1. Change in peak aortic jet velocity

    peak aortic jet velocity (Echocardiography)

    Measured: Baseline, 2 years

  2. Change in aortic valve area

    Aortic valve area (Echocardiography)

    Measured: Baseline, 2 years

  3. Change in left ventricular (LV) dimension

    LV dimension (Echocardiography, MRI)

    Measured: Baseline, 2 years

  4. Change in left ventricular (LV) mass

    LV mass (Echocardiography, MRI)

    Measured: Baseline, 2 years

  5. Change in left ventricular (LV) fibrosis

    LV Fibrosis (MRI)

    Measured: Baseline, 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted4 Jun 2021
  2. Study start1 Feb 2020
  3. Primary completionFeb 2027 (estimated)
  4. Study completionFeb 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
144 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04913870
Sponsor's protocol ID
21617
Acronym
ARBAS
Status last verified
Mar 2024
First submitted
3 May 2021
Last updated
20 Dec 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Ali M, Frederiksen PH, Moller JE, Mogensen NSB, Chemnitz A, Haujir A, Poulsen MK, Ovrehus KA, Pibarot P, Pellikka PA, Clavel MA, Dahl JS. Invasive Hemodynamic Exercise Response in Hemodynamically Significant Aortic Stenosis With Preserved Left Ventricular Ejection Fraction. Circ Heart Fail. 2026 Apr;19(4):e012809. doi: 10.1161/CIRCHEARTFAILURE.125.012809. Epub 2026 Feb 23.

    PubMed 41730521

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Angiotensin Receptor Blockers in people with Aortic Stenosis and Aortic Valve Stenosis, run by Institut universitaire de cardiologie et de pneumologie de Québec, University Laval at 2 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 20 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in Canada, Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Marie-Annick Clavel, PhD (418-656-8711 ext. 2678, Marie-Annick.Clavel@criucpq.ulaval.ca), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in the anatomic progression of aortic stenosis (time frame: Baseline, 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04913870, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Dec 2024.

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