ClinicalTrials.gg
CompletedNCT05119647Updated Sep 19, 2024

A Single-Arm Objective Performance Criteria Trial for Intracranial Thrombus Aspiration Catheter

An interventional study of Thrombus Aspiration Catheter(Ton-bridgeMT) in Acute Ischemic Stroke, sponsored by Ton-Bridge Medical Tech. Co., Ltd. Completed at 15 sites in China. Open to participants aged 18 Years to 85 Years. Per ClinicalTrials.gov, last updated 2024-09-19.

Sponsored by Ton-Bridge Medical Tech. Co., Ltd · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
124
Allocation
Not applicable
Ages
18 Years to 85 Years
Sex
All
01

Study summary

This is a prospective multicenter, single-arm objective performance criteria trial to assess the efficacy and safety of the the thrombus aspiration catheter.

Read the detailed description

The study is conducted in 15 centers all around China, aiming at recruiting 155 patients with acute stroke caused by artery occlusion.

02

Conditions studied

  • Acute Ischemic Stroke

Keywords

  • Stroke
  • Aspiration
  • Catheter
  • Intracranial
03

In context

Ischemic Stroke

2,653 studies on the registry are indexed under Ischemic Stroke; 936 are open to participants now.

This study's enrollment of 124 is close to the median of 120 across 1,799 interventional studies indexed under Ischemic Stroke.

Browse Ischemic Stroke studies →

Lead sponsor

Ton-Bridge Medical Tech. Co., Ltd is the lead sponsor of 7 studies on the registry; 2 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years to 85 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

  • Age ≥18 years;
  • Baseline NIHSS score ≥6;
  • Subject has acute occlusion located in Vertebral artery(VA) / Internal Carotid Artery (ICA) / M1or M2 segment of Middle Cerebral Artery (MCA) / Basilar artery (BA) diagnosed by DSA;
  • Femoral artery puncture is expected to be completed within 24 hours of onset;
  • mRS score≤ 2;
  • Subject or legal representative is able to understand the purpose of study, agrees to comply with protocol requirements and has provided written informed consent.

Exclusion criteria

Exclusion Criteria:

  • Chronic occlusion in the target area;
  • Epilepsy at the time of stroke;
  • Bleeding from the gastrointestinal or urinary system in the past three weeks;
  • After drug control, systolic blood pressure was greater than 185mmhg and / or diastolic blood pressure was greater than 110mmhg;
  • International Normalized Ratio(INR)>3;
  • Random blood glucose \< 2.7mmol/L or > 22.2mmol/L;
  • Heart, lung, liver, kidney failure or other serious diseases (such as brain tumors, - systemic infection, active disseminated intravascular coagulation, myocardial infarction within 12 months before enrollment, history of severe mental illness);
  • Tortuous lesion / severe stenosis in the starting segment of the carotid artery / Carotid dissection / Arteritis judged by researchers that is not suitable for the procedure;
  • Acute occlusion of bilateral carotid arteries;
  • Intracranial hemorrhage or massive infarction diagnosed by CT or MR;
  • History of allergies to antiplatelet drugs, anticoagulants, anesthetics, contrast agents;
  • Expected life \<12 months;
  • Female subjects who are pregnant or planning to become pregnant or lactate within the study period;
  • Subject has participated in any other drug or medical device clinical trials in 1 month before signing informed consent;
  • Other circumstances judged by researchers that are not suitable for enrollment .
05

Study design

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

Study arms

  • Experimental
    Aspiration thrombectomy

    Since this is a single-arm objective performance criteria trial, patients with acute stoke caused by artery occlusion shall not be divided into two groups.

    Device: Thrombus Aspiration Catheter(Ton-bridgeMT)

Interventions

  • DeviceThrombus Aspiration Catheter(Ton-bridgeMT)

    Thrombus Aspiration Catheter is a developed technique for treating acute stroke caused by artery occlusion. The catheter(Ton-bridgeMT) was specially designed for those patients who experience acute stroke within 24 hours.

06

What researchers measure

Primary outcomes

  1. Successful recanalization rate within three-times aspiration

    Successful recanalization is defined as modified Thrombolysis In Cerebral Infarction scale(mTICI) 2b or 3 evaluated by Digital subtraction angiography (DSA).

    Time frame: Up to 90 days

Secondary outcomes

  1. Successful recanalization rate within three-times aspiration

    Successful recanalization is defined as mTICI 2b or 3 evaluated by DSA.

    Time frame: Intraoperation

  2. Successful recanalization rate beyond three-times aspiration

    Successful recanalization is defined as mTICI 2b or 3 evaluated by DSA. Auxiliary device such as stent could be used.

    Time frame: Intraoperation

  3. National Institute of Health stroke scale(NIHSS)

    NIHSS score in 72 hours and 7 days(or the day when patients discharged, depends on which day is earlier) will be compared.

    Time frame: 72 hours / 7 days

  4. Rate of Modified Rankin Scale(mRS) score less than 3

    The mRS score is assessed in 90 days follow-up.

    Time frame: 90 days

  5. Device delivery performance

    Device delivery performance including transport and pullback performance, which is ranked excellent/good/normal/bad.

    Time frame: Intraoperation

  6. The rate of symptomatic intracranial hemorrhage

    National Institute of Health stroke scale(NIHSS) increased by at least 4 compared with the baseline.

    Time frame: 72 hours

  7. Death rate

    Subjects who died from any cause would be counted.

    Time frame: Up to 90 days

  8. The rate of AE

    The definition of AE(Adverse Event) refers to ISO 14155

    Time frame: Up to 90 days

  9. The rate of SAE

    The definition of SAE (Serious Adverse Event) refers to ISO 14155

    Time frame: Up to 90 days

  10. The rate of medical device deficiency

    Medical device deficiency refer to the unreasonable risks of medical devices that may endanger human health and life safety under normal use in the process of clinical trials, such as label errors, quality problems, malfunctions, etc.

    Time frame: Up to 90 days

07

Study locations

15 sites
  • The First Affiliated Hospital of USTC
    Hefei, Anhui, China
  • Zhuhai people's hospital
    Zhuhai, Guangdong, China
  • The Second Nanning People's hospital
    Nanning, Guangxi, China
  • Cangzhou central hospital
    Cangzhou, Hebei, China
  • Hunan Provincial People's Hospital
    Changsha, Hunan, China
  • Ganzhou Municipal Hospital
    Ganzhou, Jiangxi, China
  • Central Hospital Affiliated to Shangdong First Medical University
    Jinan, Shandong, China
  • First People's Hospital of Jinan
    Jinan, Shandong, China
  • The Second People's Hospital of Liaocheng
    Liaocheng, Shandong, China
  • Rizhao central Hospital
    Rizhao, Shandong, China
  • Shanxi Candiovascular hospital
    Taiyuan, Shanxi, China
  • School of medicine UESTC
    Chengdu, Sichuan, China
  • Zigong Third People's Hospital
    Zigong, Sichuan, China
  • The Second Affiliated Hospital of Zhejiang University School of Medicine
    Hangzhou, Zhejiang, China
  • Xuanwu hospital Capital Medical University
    Beijing, China
08

References and documents

Individual participant data

Plan to share: No

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 Sep 19, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05119647
Lead sponsor
Ton-Bridge Medical Tech. Co., Ltd
Responsible party
Sponsor
First posted
Nov 15, 2021
Start date
Feb 11, 2022
Primary completion
Aug 24, 2022
Completion
Nov 15, 2022
Last update
Sep 19, 2024

Study contacts

Liqun Jiao
principal investigator · Xuanwu Hospital, Beijing

Oversight

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

Not currently enrolling

This study is completed, as verified in Sep 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion