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Aortic Stenosis, CalcificCOaRtNCT03088787

Feasibility of Continuous Noninvasive Finger Arterial Blood Pressure Measurement for Detection and Staging of Aortic Stenosis

An observational study of Aortic Stenosis, Calcific, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 1 site in Netherlands.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

The primary purpose of this study is electronic data collection of arterial pressure waveform signals in patients with Aortic Stenosis. The collected digital pressure waveform data will be used to assess the feasibility of using the arterial pressure signal as a decision support tool for early detection of aortic… Read more about this study

Who is it for?
Any age
Conditions the study is for
Aortic Stenosis, Calcific
What is being tested?
Nexfin measuremtents
Type of treatment
Medical device
How many people
100 participants
Where
1 siteNetherlands
Study dates
1 Apr 2017to Dec 2018
Phase
Observational
Are there results?
None posted in the registry

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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: patients with aortic stenosis undergoing transcatheter aortic valve replacement (TAVR) procedures

Who may be able to join

  • o Patients with severe senile degenerative aortic valve stenosis
  • Clinical team agrees on eligibility including assessment that TAVR is appropriate for the subject
  • Patients undergoing TAVR via the femoral approach
  • Patients who normally require a guiding catheter for central aortic pressure monitoring during the TAVR procedure
  • Patient must be 18 years old or older
  • Patient, or legally authorized representative, has given consent to be in the study
  • Patient height and weight are available prior to study
  • Ability to perform a Nexfin measurement at the left hand side.

Who cannot join

  • o Patients with contraindications for placement of aortic catheter
  • Patients with mixed aortic valve disease (aortic stenosis and aortic regurgitation with predominant aortic regurgitation >3+).
  • Aortic valve is a congenital unicuspid or congenital bicuspid valve, or is noncalcified
  • Patients being treated with an intra-aortic balloon pump
  • Patients less than 40 kg in weight
  • Female patients of childbearing potential with a known pregnancy
  • Patient is currently participating in an investigational drug or another device study that clinically interferes with the study endpoints

Trial locations and contacts

1 site in 1 country.

Netherlands1 site, 1 recruiting
  • Veelo

    Amsterdam

    Denise Veelo, +31205669111, d.p.veelo@amc.nl

    Recruiting

Other trials in Netherlands

About this study

The primary purpose of this study is electronic data collection of arterial pressure waveform signals in patients with Aortic Stenosis. The collected digital pressure waveform data will be used to assess the feasibility of using the arterial pressure signal as a decision support tool for early detection of aortic stenosis conditions. Furthermore we evaluate hemodynamic parameters before and after valve repair and its correlation with outcome.

Being tested
Nexfin measuremtents
Medical subject headings
Aortic Valve, Calcification of

What participants receive

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

  • Nexfin measuremtentsDevice

    There will be only observational recordings, no interevntion

Study groups in NCT03088787
Study groupRoleWhat they receive
Patients for TAVRPatients for TAVR
Receives: Device: Nexfin measuremtents

What is being measured

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

  1. the distinctive morphological characteristics of the aortic pressure waveform

    the distinctive morphological characteristics of the aortic pressure waveform

    Measured: During procedure and 4 hours after

Secondary outcomes (1)
  1. changes in hemodynamic variables after TAVR and its influence on cardiac recovery.

    Measured: during procedure and up to 6 weeks after intervention

Timeline

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

  1. First posted23 Mar 2017
  2. Study start1 Apr 2017
  3. Primary completionOct 2018 (estimated)
  4. Study completionDec 2018 (estimated)

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
100 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03088787
Sponsor's protocol ID
W17_072
Acronym
COaRt
Status last verified
May 2018
First submitted
17 Mar 2017
Last updated
8 May 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Yes

Publications

  • Kho E, Schenk J, Vlaar APJ, Vis MM, Wijnberge M, Stam LB, van Mourik M, Jorstad HT, Hermanns H, Westerhof BE, Veelo DP, van der Ster BJP. Detecting aortic valve stenosis based on the non-invasive blood pressure waveform-a proof of concept study. Geroscience. 2024 Dec;46(6):5955-5965. doi: 10.1007/s11357-024-01136-w. Epub 2024 Mar 20.

    PubMed 38509415
  • Schenk J, Kho E, Rellum S, Kromhout J, Vlaar APJ, Baan J, van Mourik MS, Jorstad HT, van der Ster BJP, Westerhof BE, Bruns S, Immink RV, Vis MM, Veelo DP. Immediate reduction in left ventricular ejection time following TAVI is associated with improved quality of life. Front Cardiovasc Med. 2022 Sep 16;9:988840. doi: 10.3389/fcvm.2022.988840. eCollection 2022.

    PubMed 36187009

Questions about this trial

What is this clinical trial studying?

An observational study of Aortic Stenosis, Calcific, run by Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) at 1 site in Netherlands.

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 8 inclusion and 7 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: status not confirmed, as of the sponsor's last update on 8 May 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Netherlands. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

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

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

the distinctive morphological characteristics of the aortic pressure waveform (time frame: During procedure and 4 hours after). 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 NCT03088787, which also lists 2 linked publications.

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 8 May 2018.

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