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Aortic DissectionNCT06915545

Study on the Aortic Arch Single Branch Stent Graft System

A study testing Aortic Arch Single Branch Covered Stent System in people with Aortic Dissection, run by Lifetech Scientific (Shenzhen) Co., Ltd. at 1 site in China.

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

The objective of the study is to evaluate the Safety and Efficacy of Aortic Arch Single Branch Covered Stent System for Aortic Dissection Involving the Aortic Arch Read more about this study

Who is it for?
Ages 18 to 80 years
Conditions the study is for
Aortic Dissection
What is being tested?
Aortic Arch Single Branch Covered Stent System
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
135 participants
Where
1 siteChina
Study dates
30 Apr 2025to 30 Jun 2031
Phase
Interventional
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 18 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age between 18 and 80 years, gender unrestricted.
  • Patients are diagnosed with Stanford Type B aortic dissection and need revascularization of the left subclavian artery.
  • Anatomical criteria:
  • The diameter range of the proximal aortic landing zone is 20-42 mm.
  • The length of the proximal aortic landing zone (the distance from the posterior edge of the left common carotid artery orifice to the first intimal tear) is ≥15 mm.
  • The distance between the left common carotid artery and the left subclavian artery is ≥5 mm.
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  • The length of the left subclavian artery landing zone is ≥25 mm, and the diameter range of the landing zone is 5-15 mm.
  • Suitable access to the femoral artery, iliac artery, and upper limb artery.
  • Patients understand the purpose of the study, volunteer to participate, and are willing to complete follow - up visits as required by the protocol.

Who cannot join

  • Previously undergone endovascular interventional treatment involving the aortic arch, or having a history of aortic surgical repair surgery, which affects the implantation and evaluation of the single branched covered stent system of the aortic arch.
  • Patients with severe stenosis, calcification, or mural thrombus in the stent anchoring area pose challenges. Such conditions may easily prevent covered stents from adhering to the vessel wall or affect stent patency.
  • Infectious aortic diseases, giant cell arteritis, Marfan syndrome (or other hereditary connective tissue diseases).
  • Patients with systemic or local infections that may increase the risk of infection of the endovascular graft.
  • Patients who have received abdominal aortic surgical or endovascular interventional surgery within the past 3 months.
  • Patients who have had a stroke attack (excluding transient ischemic attack, TIA) or myocardial infarction within the past 3 months.
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  • Patients known to be allergic to contrast agents, stent materials, and delivery device materials (referring to nitinol, Dacron, PTFE, nylon polymer materials).
  • Patients known to have contraindications to anticoagulant and antiplatelet drugs.
  • Patients intolerant to general anesthesia.
  • Patients with severe abnormalities in liver, kidney, and cardiac function before the operation [Subjects with a serum creatinine level exceeding 150 μmol/L; Subjects with alanine aminotransferase (ALT) or aspartate aminotransferase (AST) exceeding 5 times the upper limit of the normal value; Subjects with serum total bilirubin (STB) exceeding 2 times the upper limit of the normal value; Subjects with a left ventricular ejection fraction lower than 50% as indicated by echocardiography.].
  • Patients whose expected lifespan is shorter than 1 year.
  • Female patients who are planning to conceive, are currently pregnant, or are breastfeeding.
  • Patients whom, in the researcher's judgment, are not appropriate candidates for endovascular treatment.
  • Patients who have been involved in other clinical studies and have not withdrawn from or exited the respective study groups within the three months preceding the screening period of this present study.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

chang shu, Professor contact

13607444222

changshu01@yahoo.com

China1 site, 1 recruiting
  • Second Xiangya Hospital of Central South University

    Changsha

    chang shu, Professor

    Recruiting

Other trials in China

About this study

Official title: Study on the Safety and Efficacy of the Aortic Arch Single Branch Covered Stent System for Aortic Dissection Involving the Aortic Arch

The objective of the study is to evaluate the Safety and Efficacy of Aortic Arch Single Branch Covered Stent System for Aortic Dissection Involving the Aortic Arch

Read the detailed description

The physician shall strictly follow the clinical study protocol and shall not deviate from or substantially change the protocol. However, in case of emergency such as immediate risk to the subjects, which needs tobe eliminated immediately, it may be reported in written form afterwards. During the course of the study,documents such as amendments to the clinical study protocol and informed consent, requests for deviation,and resumption of the suspended clinical study shall be subject to the written approval of the Ethics Committee

Being tested
Aortic Arch Single Branch Covered Stent System
Medical subject headings
Aortic Dissection

What participants receive

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

  • Aortic Arch Single Branch Covered Stent SystemDevice

    to Evaluate the Safety and Efficacy of the Aortic Arch Single Branch Covered Stent System for Aortic Dissection Involving the Aortic Arch

Study groups in NCT06915545
Study groupRoleWhat they receive
Aortic Arch Single Branch Covered Stent SystemExperimentalAortic Arch Single Branch Covered Stent System for Aortic Dissection Involving the Aortic Arch
Receives: Device: Aortic Arch Single Branch Covered Stent System

What is being measured

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

  1. Incidence rate for freedom from major adverse events (MAE) within 30 days postoperatively

    Major adverse events refer to the occurrences of all-cause death, myocardial infarction, renal failure, liver failure, respiratory failure, paraplegia, ischemic stroke, intestinal necrosis. Among them, renal failure means that it leads to persistent dialysis, kidney transplantation, or other fatal outcomes. Respiratory failure means that it leads to a significantly prolonged intubation time, tracheotomy, deterioration of lung function, or other fatal outcomes. Intestinal necrosis refers to intestinal ischemia that requires intestinal resection or leads to other fatal outcomes.

    Measured: pre-discharge up to 14 days and 30 days post-surgery

  2. Procedural success rate of aortic dissection treatment 12 months postoperatively

    The composite endpoints include immediate technical success post-procedure and, at the 12-month CTA reexamination, the absence of displacement of the main aortic and branch stents, no type I or III endoleaks, patency of the branch stents, and no secondary surgical interventions during follow-up.

    Measured: intraoperative and 12 months postoperatively

Secondary outcomes (10)
  1. All-cause mortality

    All-cause mortality Refers to deaths from any cause that occur within the follow-up time points.

    Measured: Pre-discharge up to 14 days, 30 days post-surgery, 6 and 12 months and 2-5 years postoperatively

  2. Mortality rate related to aortic dissection

    Mortality rate related to aortic dissection refers to the death caused by the rupture of aortic dissection or the endovascular treatment of aortic dissection.

    Measured: Pre-discharge up to 14 days, 30 days post-surgery, 6 and 12 months and 2-5 years postoperatively

  3. Incidence rate of severe adverse events

    Serious adverse events refer to those occurring during the process of a clinical trial that lead to death or a serious deterioration of the health condition. This includes fatal diseases or injuries, permanent defects in body structures or body functions, the need for hospitalization or an extended hospital stay, and the requirement for medical or surgical interventions to prevent permanent defects in body structures or body functions.

    Measured: Pre-discharge up to 14 days, 30 days post-surgery, 6 and 12 months and 2-5 years postoperatively

  4. Incidence rate of Device-related adverse events

    Adverse events refer to adverse medical events that occur during the process of a clinical trial, regardless of whether they are related to the medical device used in the trial. However, normal postoperative stress responses should be distinguished, such as fever, discomfort in the chest and back, etc. If, upon the judgment of the researcher, it is determined to be a normal postoperative stress response, there is no need to record it as an adverse event of the medical device. Adverse events related to the medical device refer to situations that are determined by the researcher to be definitely related, possibly related, or undeterminable in relation to the medical device used in the trial.

    Measured: Pre-discharge up to 14 days, 30 days post-surgery, 6 and 12 months and 2-5 years postoperatively

  5. The incidence rate of left upper limb ischemia

    Left upper limb ischemia may present with weakness, coldness, pain, and numbness in the left upper limb. The ulnar artery, radial artery, and brachial artery may show weakened or absent pulsation.

    Measured: Pre-discharge up to 14 days, 30 days post-surgery, 6 and 12 months and 2-5 years postoperatively

  6. Incidence rate of Type I/III endoleak

    A Type I endoleak occurs when there is a gap between the graft and the vessel wall at the "seal zones." This gap allows blood to flow alongside the graft into the aneurysm sac, creating pressure within the sac and increasing the risk of rupture. Type I endoleaks often occur when the aneurysm's anatomy is unsuitable for endovascular aneurysm repair (EVAR) or due to inappropriate device selection. However, vessel dilation over time can also cause this type of endoleak. Immediate attention is typically required because of the high risk of sac enlargement and rupture.

    Measured: Intraoperative, pre-discharge(up to 14 days), within 30 days and 6 and 12 months postoperatively

  7. Incidence rate of stent graft migration

    Migration is defined as the single branched covered stent system of the aortic arch having a displacement of more than 10 mm compared with its position before discharge .

    Measured: 6 and 12 months postoperatively

  8. The patency rate of the branch vessel

    Branch vessel patency is defined as stenosis of ≤50%

    Measured: Pre-discharge up to 14 days, 6 and 12 months postoperatively

  9. The success rate of vascular remodeling for aortic dissection

    Evaluate the expansion of the true lumen and the thrombosis of the false lumen at the sites covered by the vascular stents for aortic dissection, so as to determine whether the vascular remodeling is successful.

    Measured: within 30 days and 6 and 12 months postoperatively

  10. The incidence rate of conversion to thoracotomy or secondary interventional surgery due to aortic dissection

    Evaluate whether the subjects have been converted to thoracotomy or secondary interventional surgery due to aortic dissection.

    Measured: Pre-discharge up to 14 days, 30 days post-surgery, 6 and 12 months and 2-5 years postoperatively

Timeline

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

  1. First posted8 Apr 2025
  2. Study start30 Apr 2025
  3. Primary completion30 Apr 2027 (estimated)
  4. Study completion30 Jun 2031 (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 N/A
Primary purpose
Other
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
135 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06915545
Sponsor's protocol ID
P158CT(CN)-01
Status last verified
Mar 2025
First submitted
31 Mar 2025
Last updated
11 Jun 2025
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Aortic Arch Single Branch Covered Stent System in people with Aortic Dissection, run by Lifetech Scientific (Shenzhen) Co., Ltd. at 1 site in China.

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 9 inclusion and 14 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 11 Jun 2025. 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 China. 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?

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 chang shu, Professor (13607444222, changshu01@yahoo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence rate for freedom from major adverse events (MAE) within 30 days postoperatively (time frame: pre-discharge up to 14 days and 30 days post-surgery). The study lists 2 primary outcomes in all. 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 11 Jun 2025.

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