NCT04698304

Brief Summary

Based on the development of new tools, including drug coated balloon, paclitaxel eluting stent, interwoven stents, debulking tools, more challenging femoropopliteal arterial lesions have been treated with endovascular procedures. The TASC D lesion ,especially with popliteal artery involved are often excluded in prospective clinical trials. Therefore, a well-designed real world study that track clinical relevant outcomes, are required to determine the optimal therapies for patients with complex femoropopliteal lesions.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,000

participants targeted

Target at P75+ for all trials

Timeline
9mo left

Started Dec 2020

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress88%
Dec 2020Dec 2026

Study Start

First participant enrolled

December 1, 2020

Completed
18 days until next milestone

First Submitted

Initial submission to the registry

December 19, 2020

Completed
18 days until next milestone

First Posted

Study publicly available on registry

January 6, 2021

Completed
5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

February 25, 2026

Status Verified

February 1, 2026

Enrollment Period

5.1 years

First QC Date

December 19, 2020

Last Update Submit

February 23, 2026

Conditions

Keywords

Femoropopliteal Occlusive Diseaseendovascular treatmentpatency rate

Outcome Measures

Primary Outcomes (4)

  • Technical success rate

    Technical success refers to 1. Establishment of continuous blood flow, no early occlusion, acute thrombosis or reintervention driven by target lesion within 7 days after operation

    7 days

  • Incidence of major adverse events

    major adverse events

    36 months

  • Target vessel patency rate evaluated by postoperative ultrasound

    Target vessel patency rate

    36 months

  • Clinical-driven Target lesion reintervention rate

    Target lesion reintervention rate

    36 months

Secondary Outcomes (2)

  • Clinical-driven Target lesion reintervention rate

    24 months

  • Direct medical expenses (3-year cumulative hospitalization expenses and endovascular expenses related to target lesions)

    36 months

Study Arms (5)

Group A:TASC C lesion group

Multiple stenoses or occlusions totaling \>15cm or recurrent stenoses or occlusions that need treatment after endovascular interventions (300 cases)

Procedure: endovascular treatment

Group B:TASC D lesion with common femoral artery involved

Chronic total occlusions \>20cm with common femoral artery involved (100 cases)

Procedure: endovascular treatment

Group C:TASC D lesion with proximal popliteal artery involved

Chronic total occlusions \>20cm with proximal popliteal artery involved (300 cases)

Procedure: endovascular treatment

Group D:TASC D lesion with distal popliteal artery involved

Chronic total occlusions \>20cm with distal popliteal artery involved (200 cases)

Procedure: endovascular treatment

Group E:TASC D lesion with popliteal artery and proximal trifurcation vessels involved

Chronic total occlusion of popliteal artery (P1-3 segment) with proximal trifurcation vessels involved (100 cases)

Procedure: endovascular treatment

Interventions

All the patients are treated by endovascular therapy, through contralateral femoral artery approach, ipsilateral antegrade femoral artery approach or brachial artery approach. If the lesion is difficult to pass in antegrade approach, retrograde puncture at the distal artery of the lesion can be performed. Surgeons can choose treatment methods according to the characteristics of the lesions. For example: (a) Plain old balloon angioplasty; (b) Drug-coated balloon angioplasty; (c) Drug-coated balloon angioplasty + provisional stenting; (d) Bare-metal stent implantation; (e) Stent graft implantation; (f) Directional atherectomy + drug-coated balloon angioplasty, (g) Drug -eluting stent.

Group A:TASC C lesion groupGroup B:TASC D lesion with common femoral artery involvedGroup C:TASC D lesion with proximal popliteal artery involvedGroup D:TASC D lesion with distal popliteal artery involvedGroup E:TASC D lesion with popliteal artery and proximal trifurcation vessels involved

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with TASC C, D femoropopliteal lesions who undergoing endovascular treatment

You may qualify if:

  • Patients over 18 years old
  • Patients with Rutherford classification range from 3 to 6
  • The lower extremity artery needs to have a healthy runoff of no less than 10 cm above the ankle
  • The guide wire should pass through the lesion of femoropopliteal artery, and further endovascular treatment is performed. In this study, we did not limit the methods of the guide wire passing through the target lesion
  • If the first-time endovascular treatment is failure, patients undergo endovascular treatment successfully at the second time, the patients can still be enrolled
  • For patients with aortoiliac artery lesions, they can be enrolled after the successful reconstruction of aortoiliac artery
  • Informed consent signed by patients

You may not qualify if:

  • Patients who are unwilling or refuse to sign the informed consent form
  • Patients with acute and subacute lower extremity arterial thrombosis or arterial embolism
  • Patients with thromboangiitis obliterans
  • Patients with failure of endovascular treatment, and transferred to bypass surgery
  • Patients who underwent surgical atherectomy for common femoral artery occlusive lesions
  • Patients with known allergy to heparin, low molecular weight heparin and contrast agents
  • Patients who have been enrolled in other clinical trials in the past 3 months
  • Women during pregnancy and lactation
  • Patients with other diseases that may lead to difficulties in the trial or significantly shorten the life expectancy (\< 3 years), such as tumors, severe liver disease, cardiac insufficiency

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Renji Hospital

Shanghai, Shanghai Municipality, 200127, China

Location

Study Design

Study Type
observational
Observational Model
CASE CROSSOVER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 19, 2020

First Posted

January 6, 2021

Study Start

December 1, 2020

Primary Completion

December 31, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

February 25, 2026

Record last verified: 2026-02

Locations