Status:

ACTIVE_NOT_RECRUITING

A Clinical Evaluation of the MicroSTent® PeripherAl Vascular SteNt in Subjects With Arterial Disease Below the Knee (STAND)

Lead Sponsor:

Micro Medical Solution, Inc.

Conditions:

Peripheral Arterial Disease

Eligibility:

All Genders

21+ years

Phase:

NA

Brief Summary

Randomized multicenter clinical trial consisting of two arms; one arm treated with PTA plus the MicroStent® System and one arm treated with PTA alone. Purpose to evaluate the safety and effectiveness ...

Eligibility Criteria

Inclusion

  • General
  • Subject is a male or a non-pregnant female adult between the age of 21 and 90 years old.
  • Subject has documented clinical evidence of critical limb ischemia (CLI) in the target limb prior to the index procedure, with a Rutherford Classification score of 4-5.
  • The subject, or subject's designated legal representative, has been informed of the nature of the study and is willing to provide written informed consent.
  • Subject is willing to comply with all required follow-up visits.
  • Subject life expectancy is ≥1 year per the Principal Investigator.
  • Angiographic Inclusion Criteria
  • Target vessel reconstitutes at or above the ankle with inline flow to at least one patent (\<50% stenosis) inframalleolar outflow vessel.
  • Subject has a lesion, with ≥ 70% stenosis and ≤ 12.0 cm in length located at or distal to the tibial-peroneal trunk and above the tibiotalar joint; including the anterior tibial, posterior tibial or peroneal arteries.
  • Target lesion has a reference vessel diameter of 2.5 - 4.5 mm
  • The target lesion is able to be crossed with a guidewire to facilitate treatment with the randomized device.
  • General

Exclusion

  • Subject had a prior or has a planned index limb amputation above the ankle.
  • Subject has a wound/ulcer on the forefoot with a surface area \>4cm² or osteomyelitis involving the calcaneus bone.
  • Subject is pregnant, plans to become pregnant, or is nursing.
  • Subject has clinical conditions that severely inhibit X-ray or duplex ultrasound visualization (e.g. body habitus).
  • Subject has a history of hypercoagulation/clotting disorders or acute thrombosis.
  • Subject has allergy to iodinated contrast media that cannot be adequately managed with medication.
  • Subject is in acute renal failure.
  • Subject has an active systemic infection.
  • Subject is participating in another research study involving an investigational device, biologic, or drug that has not completed the primary endpoint at the time of randomization/enrollment.
  • Subject has other comorbidities that - in the opinion of the investigator - preclude them from receiving study treatment and/or from completing the required study follow-up assessments.
  • Subject presents with acute limb ischemia or acute thrombosis of the target limb.
  • Subject has experienced myocardial infarction, thrombolysis, or angina less than 30 days prior to the index procedure.
  • Subject had a stroke within 3 months of index procedure.
  • Angiographic exclusion criteria
  • Failure to successfully treat clinically significant inflow lesions in the ipsilateral iliac, femoral, or popliteal arteries. Successful treatment is defined as obtaining ≤30% residual stenosis with no major procedural complications (e.g embolism).
  • Failure to successfully treat significant non-target infra-popliteal lesions. Successful treatment is defined as obtaining ≤30% residual stenosis with no major procedural complications (e.g. embolism).
  • Target lesion is within a previously placed stent.

Key Trial Info

Start Date :

March 31 2020

Trial Type :

INTERVENTIONAL

Allocation :

ACTUAL

End Date :

March 1 2028

Estimated Enrollment :

177 Patients enrolled

Trial Details

Trial ID

NCT03477604

Start Date

March 31 2020

End Date

March 1 2028

Last Update

November 14 2025

Active Locations (21)

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Page 1 of 6 (21 locations)

1

Cardiovascular Associates of the Southeast

Birmingham, Alabama, United States, 35243

2

Copper State Vascular

Mesa, Arizona, United States, 85203

3

St. Helena Hospital

St. Helena, California, United States, 94574

4

Rocky Mountain Regional VA Medical Center

Aurora, Colorado, United States, 80045