NCT05529472

Brief Summary

This is a prospective, single-arm, multi-center study designed to evaluate the safety and efficacy of the Orbital Atherectomy System (OAS) for the treatment of adult Japanese subjects with a de novo symptomatic calcified occlusive atherosclerotic lesion in the superficial femoral artery (SFA) and/or popliteal (POP) artery, which would be otherwise ineligible for endovascular therapy due to risk of complication. Study objective is to collect safety and effectiveness data to support potential commercialization of the peripheral OAS device in Japan.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
81

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jan 2023

Geographic Reach
1 country

12 active sites

Status
completed

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

First Submitted

Initial submission to the registry

September 2, 2022

Completed
5 days until next milestone

First Posted

Study publicly available on registry

September 7, 2022

Completed
4 months until next milestone

Study Start

First participant enrolled

January 10, 2023

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2024

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

October 10, 2024

Completed
1 year until next milestone

Results Posted

Study results publicly available

October 27, 2025

Completed
Last Updated

October 27, 2025

Status Verified

September 1, 2025

Enrollment Period

1.2 years

First QC Date

September 2, 2022

Results QC Date

July 14, 2025

Last Update Submit

September 30, 2025

Conditions

Keywords

superficial femoral arterypopliteal arteryde novo lesions

Outcome Measures

Primary Outcomes (1)

  • Percentage of Subjects With Acute Device Success

    The percentage of subjects with the following, post-procedure: 1. ≤50% residual stenosis post OAD + POBA \[Angiographic Core Lab assessed\] and, 2. No OAS-related severe angiographic complications defined as severe dissections (D-F), perforation, or distal emboli requiring additional treatment during the procedure \[CEC adjudicated\].

    At the end of the procedure

Secondary Outcomes (10)

  • Change in Lesion Stenosis

    Baseline, Post OAD, Post POBA

  • Acute Technical Success

    At the end of the procedure

  • Drug Coated Balloon (DCB) Device Success

    Within 3 minutes of insertion of DCB

  • Target Vessel Patency

    Up to 6 months

  • Rate of Severe Angiographic Complications

    At the end of the procedure

  • +5 more secondary outcomes

Study Arms (1)

Peripheral Orbital Atherectomy System (OAS)

EXPERIMENTAL

Treatment with Cardiovascular Systems, Inc. (CSI) Orbital Atherectomy System (OAS) followed by Percutaneous Old Balloon Angioplasty (POBA) pre-dilation and Medtronic IN.PACT™ Admiral™ Drug Coated Balloon (DCB)

Device: Peripheral Orbital Atherectomy System (OAS)

Interventions

Treatment with Orbital Atherectomy System (OAS) followed by Percutaneous Old Balloon Angioplasty (POBA), pre-dilation and Drug Coated Balloon (DCB) - Medtronic IN.PACT™ Admiral™

Peripheral Orbital Atherectomy System (OAS)

Eligibility Criteria

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

You may qualify if:

  • years of age or older
  • Subject has signed the approved KAIZEN study Informed Consent Form prior to any study-related procedures
  • Chronic, symptomatic lower limb ischemia
  • Clinical indication for percutaneous transluminal angioplasty intervention in the native SFA and/or POP artery

You may not qualify if:

  • Female who is pregnant and/or breastfeeding
  • Currently participating in another investigational clinical study
  • Unwilling to follow the Investigator's instructions or follow-up requirements
  • Any non-diagnostic peripheral vascular intervention that was unsuccessful or had complications within 30 days before clinical trial treatment
  • Any non-diagnostic coronary intervention within 30 days before clinical trial treatment
  • Any planned non-diagnostic vascular intervention(s) within 30 days after clinical trial treatment
  • Any planned procedures or other medical conditions which, in the Investigator's opinion, may interfere with the study result and/or subject's optimal participation in the study
  • Prior major amputation within one year of the clinical trial treatment procedure
  • Planned major amputation
  • Life expectancy of ≤6 months
  • History of coagulopathy or hypercoagulable bleeding disorder
  • History of Myocardial Infarction (MI), or stroke/cerebrovascular accident within 6-months prior to the clinical trial treatment
  • Unstable angina pectoris
  • Untreatable hemorrhagic disease or platelet count \<80,000mm3 or \>600,000mm3
  • Evidence of active infection
  • +19 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (12)

Tokyo bay Ichikawa

Urayasu, Chiba, Japan

Location

Matsuyama Red Cross

Matsuyama, Ehime, Japan

Location

Fukuoka Sannou

Sawara, Fukuoka, Japan

Location

Iwaki-City Medical Center

Iwaki, Fukushima, Japan

Location

Shonan Kamakura General Hospital

Kamakura, Kanagawa, Japan

Location

Kyoto Katsura Hospital

Nishikyo-ku, Kyoto, Japan

Location

Sendai Kousei Hospital

Sendai, Miyagi, Japan

Location

Nara Medical University

Kashihara, Nara, Japan

Location

Morinomiya

Joto, Osaka, Japan

Location

Ageo Central Hospital

Ageo, Saitama, Japan

Location

Kasukabe Central (Chu-o-)

Kasukabe, Saitama, Japan

Location

Daini Osaka Police Hospital

Osaka, Japan

Location

MeSH Terms

Conditions

Peripheral Arterial Disease

Condition Hierarchy (Ancestors)

AtherosclerosisArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular DiseasesPeripheral Vascular Diseases

Results Point of Contact

Title
Ikuko Kishimoto, Principal Clinical Scientist
Organization
Abbott Vascular

Study Officials

  • Hiroyoshi Yokoi, MD

    International University of Health and Welfare, Japan

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 2, 2022

First Posted

September 7, 2022

Study Start

January 10, 2023

Primary Completion

April 1, 2024

Study Completion

October 10, 2024

Last Updated

October 27, 2025

Results First Posted

October 27, 2025

Record last verified: 2025-09

Locations