ClinicalTrials.gg
RecruitingNCT06062524Updated May 22, 2024

Guo's False Lumen Embolization : The First in Man Study of WeFlow-EndoSeal Aorta Vascular Plug System

An interventional study of Aorta Vascular Plug System in Aortic Dissection Aneurysm, sponsored by Hangzhou Endonom Medtech Co., Ltd.. Recruiting at 3 sites in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2024-05-22.

Sponsored by Hangzhou Endonom Medtech Co., Ltd. · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by May 2026, 5 months ago, but the record still lists the study as recruiting.
  • Started Oct 2023; still recruiting 3 years later.
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
18 Years to 80 Years
Sex
All
01

Study summary

A prospective, single-center, first in man study to evaluate the safety and efficacy of WeFlow-EndoSeal Aorta Vascular Plug System manufactured by Hangzhou Endonom Medtech Co., Ltd. for the dissecting aneurysm of descending thoracic aorta after aortic dissection repair.

02

Conditions studied

  • Aortic Dissection Aneurysm

Browse trials for

03

In context

Aortic Dissection

205 studies on the registry are indexed under Aortic Dissection; 73 are open to participants now.

This study's planned enrollment of 20 is below the median of 114 across 86 interventional studies indexed under Aortic Dissection.

Browse Aortic Dissection studies →

Lead sponsor

Hangzhou Endonom Medtech Co., Ltd. is the lead sponsor of 17 studies on the registry; 8 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients aged 18 to 80 years old, no gender limitation;
  • The patient was diagnosed with a dissecting aneurysm of the descending thoracic aorta after the repair of the main artery dissection, and the treatment indications were one of the following:

    1. Aortic dissection aneurysm diameter ≥ 5.5cm
    2. The diameter of descending thoracic aorta dissection increased rapidly ≥5 mm/ year
    3. Symptoms associated with dissection progression, such as chest and back pain
  • The diameter of false lumen approximately 1 cm superiorly to the celiac trunk ≤40 mm
  • Appropriate anatomical conditions were assessed by imaging to allow the adjustable bend conveyor to enter the pseudolumen through tears of the iliac artery, subrenal aorta, or renal artery levels.
  • Those who can understand the purpose of the trial, voluntarily participate in the study, sign the form by themselves or their legal representative, and are willing to complete the follow-up according to the protocol requirements.

Exclusion criteria

Exclusion Criteria:

  • Aortic rupture;
  • Continuous malperfusion of internal artery branches caused by dissection;
  • Had previously received false lumen embolization;
  • Proximal type I endoleak after aortic repair;
  • Abdominal aortic dissection aneurysm diameter > 5 cm
  • Infectious aortic disease, arteritis, Marfan syndrome (or other connective tissue diseases);
  • Acute systemic infection;
  • History of myocardial infarction, or cerebral infarction within the past 3 months;
  • Cardiac function Grade IV ( rating) or \< 30%;
  • Hematological abnormalities: leukopenia (WBC \< 3×10\^9/L), anemia ( \< 90 g/L); Coagulation dysfunction, thrombocytopenia ( count \< 50×10\^9/L);
  • Renal insufficiency: serum creatinine > 150 umol/L (or 3.0 mg/dL) and/or advanced kidney disease requiring renal dialysis, as determined by the investigator after thorough analysis;
  • Severe liver insufficiency: (ALT) or aspartate aminotransferase (AST) exceeds the normal upper limit by 5 times; Serum total (STB) exceeded the normal upper limit by 2 times;
  • Allergic to contrast agents, anesthetics, plugs, and delivery materials;
  • Pregnant, breastfeeding or cannot during the trial period;
  • Participated in clinical trials of other drugs or devices during the same period;
  • is less than 12 months (such as advanced malignant tumors);
  • Investigator judged that not suitable for interventional treatment.
Terms in these criteria, in plain language(10)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

TIA (transient ischaemic attack)

A “mini-stroke”: temporary stroke-like symptoms caused by reduced blood flow to part of the brain, spinal cord or eye, without signs of a new stroke on a scan.

Stroke symptoms need emergency care at once, even if they go away.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    WeFlow-EndoSeal Aorta Vascular Plug System

    WeFlow-EndoSeal Aorta Vascular Plug System

    Device: Aorta Vascular Plug System

Interventions

  • DeviceAorta Vascular Plug System

    The Aorta Vascular Plug System for false lumen is composed of a vascular plug system and an adjustable bend conveyor. The plug system is composed of a patch and a conveying steel cable. The plug is pre-installed on the conveying steel cable.

06

What researchers measure

Primary outcomes

  1. No major adverse events within 30 days after operation.

    Major adverse events within 30 days after operation refer to all-cause death, myocardial infarction, ischemic stroke, respiratory failure, renal failure, intestinal necrosis, paraplegia, and amputation within 30 days after operation. Among them, renal failure refers to long-lasting dialysis, kidney transplantation, or other fatal results. Intestinal necrosis is intestinal ischemia that requires bowel resection or other fatal consequences. Severe lower limb ischemia refers to new severe limp or resting pain after surgery.

    Time frame: 30 days after operation

  2. All-cause mortality

    All-cause mortality includes cardiac mortality, non-cardiac mortality, and mortality from unknown causes.

    Time frame: 30 days, 6 months, and 12 months after operation

  3. Aortic dissection-related mortality,

    Refers to mortality caused by a ruptured aortic dissection or endovascular interventional treatment.

    Time frame: 30 days, 6 months, and 12 months after operation

  4. Serious adverse events.

    Refers to an event that occurs during the clinical trial that results in mortality or serious deterioration in patient health, including a fatal illness or injury, a permanent defect in body structure or body function, or an event that requires medical or surgical intervention to avoid one or more permanent defects in body structure or body function.

    Time frame: 30 days, 6 months, and 12 months after operation

  5. False lumen thrombosis of the descending thoracic aorta

    False lumen thrombosis of the descending thoracic aorta (no thrombosis, partial thrombosis, complete thrombosis) observed by postoperative CTA review.

    Time frame: 1 month, 6 months, and 12 months after operation

  6. Aortic dissection progression under control

    Aortic dissection progression under control is defined as maximum increase in the diameter of false lumen diameter in descending thoracic aorta was ≤ 5 mm when compared with preoperative aortic dissection as of postoperative CTA review.

    Time frame: 1 month, 6 months, and 12 months after operation

07

Study locations

3 of 3 sites recruiting
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 22, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06062524
Lead sponsor
Hangzhou Endonom Medtech Co., Ltd.
Responsible party
Sponsor
First posted
Oct 2, 2023
Start date
Oct 24, 2023
Primary completion
May 31, 2026 (estimated)
Completion
May 31, 2026 (estimated)
Last update
May 22, 2024

Study contacts

Wei Guo, Professor
Contact
Pla301dml@vip.sina.com
13910758706

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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