The Efficacy of Endovascular Treatment in FPOD With TASC C and D Lesions

February 23, 2026 updated by: RenJi Hospital

Physician-initiated, Prospective, Multi-center，Observational Study: The Efficacy of Endovascular Treatment in Femoropopliteal Occlusive Disease (FPOD) With TransAtlantic InterSociety Consensus (TASC) C and D Lesions

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.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

According to the TASC II guidelines, TASC D lesions was recommended for primary endovascular revascularization, TASC C lesions for surgical revascularization in patients with appropriate perioperative risk and available conduit. However, 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.

Despite The shift of Endovascular- first strategy has been documented in recent literature. There still lack evidence to support either approach have a significant advantage over the other. And 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.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
1000

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 200127
        • Renji Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

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

Description

Inclusion Criteria:

  1. Patients over 18 years old
  2. Patients with Rutherford classification range from 3 to 6
  3. If patients with both lower limbs meeting the inclusion criteria, both side of limb can be selected for this study
  4. The lower extremity artery needs to have a healthy runoff of no less than 10 cm above the ankle
  5. 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
  6. If the first-time endovascular treatment is failure, patients undergo endovascular treatment successfully at the second time, the patients can still be enrolled
  7. For patients with aortoiliac artery lesions, they can be enrolled after the successful reconstruction of aortoiliac artery
  8. Informed consent signed by patients

Exclusion Criteria:

  1. Patients who are unwilling or refuse to sign the informed consent form
  2. Patients with acute and subacute lower extremity arterial thrombosis or arterial embolism
  3. Patients with thromboangiitis obliterans
  4. Patients with failure of endovascular treatment, and transferred to bypass surgery
  5. Patients who underwent surgical atherectomy for common femoral artery occlusive lesions
  6. Patients with known allergy to heparin, low molecular weight heparin and contrast agents
  7. Patients who have been enrolled in other clinical trials in the past 3 months
  8. Women during pregnancy and lactation
  9. 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

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Crossover
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
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
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 B：TASC D lesion with common femoral artery involved
Chronic total occlusions >20cm with common femoral artery involved (100 cases)
Procedure: endovascular treatment
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 C：TASC D lesion with proximal popliteal artery involved
Chronic total occlusions >20cm with proximal popliteal artery involved (300 cases)
Procedure: endovascular treatment
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 D：TASC D lesion with distal popliteal artery involved
Chronic total occlusions >20cm with distal popliteal artery involved (200 cases)
Procedure: endovascular treatment
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 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
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.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Technical success rate
Time Frame: 7 days
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
Time Frame: 36 months
major adverse events
36 months
Target vessel patency rate evaluated by postoperative ultrasound
Time Frame: 36 months
Target vessel patency rate
36 months
Clinical-driven Target lesion reintervention rate
Time Frame: 36 months
Target lesion reintervention rate
36 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Clinical-driven Target lesion reintervention rate
Time Frame: 24 months
Target lesion reintervention rate
24 months
Direct medical expenses (3-year cumulative hospitalization expenses and endovascular expenses related to target lesions)
Time Frame: 36 months
Direct medical expenses
36 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
RenJi Hospital

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
First People's Hospital of Hangzhou
Shanghai Zhongshan Hospital
Huashan Hospital
Chengdu University of Traditional Chinese Medicine
Xuanwu Hospital, Beijing
First Affiliated Hospital of Zhejiang University
Qingdao Haici Hospital
Liyuan Hospital of Tongji Medical College, Huazhong University of Science and Technology
Second Affiliated Hospital of Suzhou University
Xiamen Cardiovascular Hospital, Xiamen University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 1, 2020

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
December 19, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 5, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 6, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 25, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
February 23, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
February 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • The Oriental Study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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