NCT06539689

Brief Summary

This is a prospective, multi-center, randomized trial designed to investigate the efficacy and safety of Sperstent® peripheral spot stent system versus Everflex® self-expanding peripheral stent system in the endovascular treatment of post-balloon angioplasty (post-PTA) residual lesions including stenoses and/or dissections in femoral and proximal popliteal arteries.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
240

participants targeted

Target at P75+ for not_applicable

Timeline
8mo left

Started Jun 2024

Typical duration for not_applicable

Geographic Reach
1 country

12 active sites

Status
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 Progress75%
Jun 2024Dec 2026

Study Start

First participant enrolled

June 4, 2024

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

July 29, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

August 6, 2024

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 4, 2026

Expected
27 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

August 6, 2024

Status Verified

July 1, 2024

Enrollment Period

2.5 years

First QC Date

July 29, 2024

Last Update Submit

August 1, 2024

Conditions

Keywords

Peripheral Arterial DiseaseSpot stent

Outcome Measures

Primary Outcomes (2)

  • Primary Patency

    Primary patency defined as freedom from clinically driven target lesion revascularization (CD-TLR) and freedom from duplex ultrasound derived binary restenosis at 12 months post-operation.(defined as PSVR \>2.5)

    12 months post-operation

  • Freedom from Major Adverse Events (MAEs)

    Freedom from the occurrence of any new-onset MAEs defined as all-cause death, index limb amputation (above the ankle), or clinically-driven target lesion revascularization (CD-TLR) at 30 days post-operation.

    30 days post-operation

Secondary Outcomes (9)

  • Rate of Device Success

    immediately post-operation

  • Rate of Procedural Success

    immediately post-operation

  • Primary Patency at 30 days and 6 months

    30 days and 6 months post-operation

  • Rate of clinically driven target lesion revascularization (CD-TLR)

    30 days, 6 months and 12 months post-operation

  • Changes from Baseline in Rutherford Classification

    30 days, 6 months and 12 months post-operation

  • +4 more secondary outcomes

Study Arms (2)

Sperstent® peripheral spot stent system

EXPERIMENTAL

subjects using the Sperstent® peripheral spot stent system

Device: Sperstent® peripheral spot stent system

Everflex® self-expanding peripheral stent system

ACTIVE COMPARATOR

subjects using the Everflex® self-expanding peripheral stent system

Device: Everflex® self-expanding peripheral stent system

Interventions

Sperstent® peripheral spot stent system, Percutaneous Transluminal Angioplasty (PTA), Digital Subtraction Angiography(DSA)

Sperstent® peripheral spot stent system

Everflex® self-expanding peripheral stent system, Percutaneous Transluminal Angioplasty (PTA), Digital Subtraction Angiography(DSA)

Everflex® self-expanding peripheral stent system

Eligibility Criteria

Age18 Years - 85 Years
Sexall(Gender-based eligibility)
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18-85 years old, male or female;
  • The target lesion is located in the superficial femoral artery or the proximal popliteal artery;
  • Peripheral arterial stenosis or occlusive disease with symptoms consistent with the Rutherford classification 2 to 5;
  • Estimated life expectancy \>1 year;
  • Subject has been informed of and understands the nature of the study and provides signed informed consent to participate in the study.
  • Stenosis rate ≥70% under DSA by visual estimate, or 100% occluded lesion with a total lesion length less than 150mm (by visual estimate);
  • Reference vessel diameter is between 3 mm and 7.5 mm, 50mm≤Total cumulative length of target lesions≤250mm; (In the case of bilimb lesions, a single target lesion with one limb meeting the protocol criteria is selected by the investigator; More than 2cm between lesions are considered as 2 lesions);
  • After PTA treatment by DCB, there exists residual lesions, such as the target lesion has over 30% residual DS and/or presence of at least one post-PTA dissection (Type A-F) (by visual estimate);
  • Patients with unobstructed inflow tract or successfully treated, visual residual stenosis ≤50%;
  • Angiography showed at least one outflow tract was unobstructed at the distal end (Stenosis degree ≤70% before intervention).

You may not qualify if:

  • Target vessel had undergone open surgery such as bypass surgery or the target lesion is in-stent restenosis;
  • Patients with serum creatinine \>2.5mg/dl during screening or undergoing long-term hemodialysis or peritoneal dialysis;
  • Severe coagulation disorder;
  • Patients with major vascular-related diseases, including acute lower extremity ischemia, active disseminated intravascular coagulation, thromboangiitis obliterans, deep vein thrombosis, and aneurysms of therapeutic lateral vessels (deep femur, superficial femur, or popliteal artery);
  • A history of major organ failure or other serious illness (including severe coronary heart disease, severe cardiac insufficiency, severe neurosis, or mental illness); Have received or plan organ transplantation, severe gastrointestinal bleeding);
  • Myocardial infarction or symptomatic stroke occurred within 3 months prior to enrollment;
  • Thrombolysis of target vessel within 72 hours before surgery, did not completely dissolve the thrombus;
  • Systemic infection or uncontrolled infection within the target limb;
  • Known allergy to contrast agents, nickel or titanium (Nitinol), heparin, aspirin, clopidogrel, anesthetics;
  • Women who are pregnant or breast-feeding, or women of childbearing age who have family plans within 1 year;
  • Patients who are planning to have major lower limb amputations on the target side of the lesion;
  • Endovascular or surgical procedures are performed on the target limb within 30 days before or 30 days after surgery;
  • Participating in clinical trials of other medical devices or drugs;
  • The investigator considers the patient is not suitable for participation in the clinical trial.
  • Failure of the guidewire to pass through the lesion;
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (12)

Beijing Friendship Hospital, Capital Medical University

Beijing, Beijing Municipality, China

NOT YET RECRUITING

The First Affiliated Hospital of Chongqing Medical University

Chongqing, Chongqing Municipality, China

NOT YET RECRUITING

The Second Hospital of Hebei Medical University

Shijiazhuang, Hebei, China

NOT YET RECRUITING

First Affiliated Hospital of Zhengzhou University

Zhengzhou, Henan, China

NOT YET RECRUITING

Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology

Wuhan, Hubei, China

RECRUITING

Nanjing Drum Tower Hospital

Nanjing, Jiangsu, China

RECRUITING

Affiliated Hospital of Nantong University

Nantong, Jiangsu, China

NOT YET RECRUITING

Renji Hospital, Shanghai Jiao Tong University School of Medicine

Shanghai, Shanghai Municipality, China

NOT YET RECRUITING

The Affiliated Hospital of Southwest Medical University

Luzhou, Sichuan, China

NOT YET RECRUITING

The First Affiliated Hospital, Zhejiang University School of Medicine

Hangzhou, Zhejiang, China

NOT YET RECRUITING

Hospital of Chengdu University of TCM

Chengdu, China

NOT YET RECRUITING

Shanghai East Hospital

Shanghai, China

RECRUITING

MeSH Terms

Conditions

Peripheral Arterial DiseaseConstriction, Pathologic

Condition Hierarchy (Ancestors)

AtherosclerosisArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular DiseasesPeripheral Vascular DiseasesPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 29, 2024

First Posted

August 6, 2024

Study Start

June 4, 2024

Primary Completion (Estimated)

December 4, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

August 6, 2024

Record last verified: 2024-07

Locations