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Dissection of Thoracic AortaPS-IDENCT03322033

Feasibility of Endovascular Repair of Ascending Aortic Pathologies

A study testing Valiant PS-IDE Stent Graft in people with Dissection of Thoracic Aorta, run by Baylor Research Institute at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this early feasibility study is to investigate the outcome of selected patients with ascending thoracic aortic pathologies including type A aortic dissection, who are suitable for endovascular repair with the Medtronic Valiant PS-IDE Stent Graft System with the Captivia Delivery System (or the Valiant… Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Dissection of Thoracic Aorta
What is being tested?
Valiant PS-IDE Stent Graft
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
1 participants
Where
1 siteUnited States
Study dates
15 Dec 2018to 22 Oct 2021
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • In order to qualify for this physician-sponsored Investigational Device Exemption, the patients would have to meet the entire entry criteria listed below, sign a consent approved by the FDA and IRB, and agrees to follow-up according to the study protocol.
  • Patient must have a type A thoracic aortic dissection, retrograde type A thoracic aortic dissection of the ascending thoracic aorta affecting the area between the Sinus of Valsalva and the innominate artery orifice (with no involvement of the aortic valve) and be considered a candidate for endovascular repair;
  • The proximal and distal landing zones for placement of graft should be at least 1 cm.
  • The proximal landing zone will allow placement of the stent graft as to not inhibit valvular function, occlude a coronary ostium or proximal bypass graft; The aortic root may be dissected, but the proximal tear site must be at least 1cm from the STJ (and within the above listed size criteria).
  • Distal landing zone must allow for continued perfusion of critical cerebral vessels;
  • The aorta as measured adventitial wall to adventitial wall must be greater than 28 mm and no more than 44 mm maximum diameter at both the proximal and distal landing zone.
  • The patient must be high-risk surgical candidate according to the following established criteria: ASA score of IV.

Who cannot join

  • Pregnant or pediatric patients (younger than 21 years of age);
  • Patients who have a condition that threatens to infect the stent graft/aortic valve prosthesis;
  • Patients with allergies to the stent graft material;
  • Patients or their legally authorized representative (LAR) who do not sign the informed consent;
  • Patients with expected survival less than one year due to a condition other than the ascending aortic

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Baylor Scott & White The Heart Hospital

    Plano, Texas, 75035

Other trials in United States

About this study

Official title: Proposed Single Center Investigational Device Exemption: Feasibility of Endovascular Repair of Ascending Aortic Pathologies

The purpose of this early feasibility study is to investigate the outcome of selected patients with ascending thoracic aortic pathologies including type A aortic dissection, who are suitable for endovascular repair with the Medtronic Valiant PS-IDE Stent Graft System with the Captivia Delivery System (or the Valiant PS-IDE Stent Graft).

Read the detailed description

The purpose of this early feasibility study is to investigate the outcome of selected patients with ascending aortic pathologies including type A aortic dissection, retrograde type A aortic dissection, who are suitable for endovascular repair with the Valiant PS-IDE Stent Graft device. The investigators propose to study patients with Dissections affecting the aorta between the Sinus of Valsalva and the innominate artery orifice (with no involvement of aortic valve). In these patients, the ascending aorta will be repaired using the stent graft. For patients with type A aortic dissection, the investigators expect to reroute the blood to the true lumen by covering the proximal tear. In patients with retrograde type A aortic dissection, there might or might not be additional tears in the ascending aorta. If they are tears in ascending aorta, these dissections behave similarly like a type A aortic dissection, in which all the tears in the ascending aorta need to be covered. If the proximal tear is only in the descending thoracic aorta, these patients will require coverage in the ascending aorta with the stent graft along with coverage of proximal tear in the descending thoracic aorta using Valiant stent graft.

Patients will be selected from a high-risk surgical cohort. The total number of enrolled subjects is planned to be 20.

Being tested
Valiant PS-IDE Stent Graft
Medical subject headings
Dissection, Thoracic Aorta

What participants receive

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

  • Valiant PS-IDE Stent GraftDevice

    Medtronic Valiant PS-IDE Stent Graft System with the Captivia Delivery System

Study groups in NCT03322033
Study groupRoleWhat they receive
Type A DissectionExperimentalHigh risk subjects with ascending thoracic aortic pathologies including type A aortic dissection who are suitable for endovascular repair
Receives: Device: Valiant PS-IDE Stent Graft

What is being measured

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

  1. Number of Participants With Freedom From Early Death

    Number of participants with freedom from early death at 30-days post-procedure

    Measured: 30 days

Timeline

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

  1. First posted26 Oct 2017
  2. Study start15 Dec 2018
  3. Primary completion22 Oct 2021
  4. Study completion22 Oct 2021

Why it stopped: Due to Medtronic no longer supporting the manufacturing of the custom/modified Valiant Captivia device required for the trial

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 N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03322033
Sponsor's protocol ID
G170196
Acronym
PS-IDE
Status last verified
Jan 2026
First submitted
23 Oct 2017
Last updated
2 Mar 2026
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Valiant PS-IDE Stent Graft in people with Dissection of Thoracic Aorta, run by Baylor Research Institute at 1 site in United States.

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 7 inclusion and 5 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: stopped early, as of the sponsor's last update on 2 Mar 2026. 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 United States. 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?

Yes. Results are posted in the registry (first posted 2 Mar 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Freedom From Early Death (time frame: 30 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 2 Mar 2026.

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