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Superficial Femoral Artery StenosisCONTINUUMNCT00908947

CONTINuous Infra-Inguinal Stenting Using the Bard® LifeStent® VascUlar Stent SysteMs ("CONTINUUM")

A study testing PTA followed by placement of LifeStent® Vascular Stent in people with Superficial Femoral Artery Stenosis, run by C. R. Bard at 29 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The objectives of this study are to collect post-market confirmatory evidence of the safety and effectiveness of the Bard® LifeStent® Vascular Stent System and LifeStent® XL Vascular Stent System (together the "LifeStent® Vascular Stent System"). Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
Superficial Femoral Artery Stenosis
What is being tested?
PTA followed by placement of LifeStent® Vascular Stent
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
173 participants
Where
29 sitesUnited States
Study dates
Feb 2011to 19 Sep 2018
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • The subject provides written informed consent using an Informed Consent Form (ICF) that is reviewed and approved by the Institutional Review Board (IRB) for the site.
  • Subject agrees to comply with the protocol-mandated follow-up procedures and visits.
  • The subject is ≥ 21 years old.
  • Male or female subjects; female subjects of childbearing potential must have a negative urine pregnancy test at the time of screening.
  • The subject has lifestyle-limiting claudication or ischemic rest pain defined as: Rutherford Category 2-4.
  • The target lesion(s) has angiographic evidence of stenosis or restenosis ≥ 50% or occlusion (by visual estimate) and is amenable to PTA with stenting.
  • The total target lesion(s) length must be ≤ 240 mm.
  • The target vessel reference diameter is ≥ 4.0 mm and ≤ 6.5 mm (by visual estimate), and therefore appropriate for treatment with available stent diameters of 6.0 mm and 7.0 mm.

Who cannot join

  • The subject is unable or unwilling to provide informed consent, or is unable or unwilling to conform to the study protocol follow-up procedures and visits.
  • The subject has claudication or critical limb ischemia described as Rutherford Category 1 (mild claudication), 5 (minor tissue loss) or 6 (major tissue loss.
  • The subject has multiple stenoses or occlusions > 240 mm.
  • The subject has a previous stent or stent graft located in the target vessel.
  • The subject has flow-limiting stenosis or occlusion of the inflow tract that cannot be adequately corrected (≤ 30% residual stenosis) prior to treatment of the target lesion(s). Investigator standard of care practices shall be utilized for treatment of inflow.
  • The subject has a known contraindication (including allergic reaction) to antiplatelet/anticoagulant medications, nickel, titanium, tantalum or sensitivity.
Show all 17Show fewer
  • The subject has a known contraindication to contrast media that is not amenable to pretreatment with steroids or/and antihistamines.
  • The subject has a known history of bleeding diatheses or coagulopathy.
  • The subject has concomitant renal failure with a creatinine of > 2.5 mg/dL.
  • The subject is currently on dialysis or receiving systemic immunosuppressive therapy.
  • The subject has known concomitant hepatic insufficiency, thrombophlebitis, uremia, systemic lupus erythematosus, septicemia or deep vein thrombosis at the time of the index procedure.
  • The subject is currently participating in an investigational drug or another investigational device study that has not completed the primary endpoint, or that clinically interferes with the study endpoints. Note: trials requiring extended follow-up for products that were investigational, but have since become commercially available, are not considered investigational trials.
  • The subject has another medical condition, which, in the opinion of the Investigator, may cause him/her to be non-compliant with the protocol, confound the data interpretation, or is associated with a life expectancy insufficient to allow for the completion of study procedures and follow-up.
  • The subject has extensive peripheral vascular disease, which in the opinion of the Investigator, would preclude safe insertion of an introducer sheath.
  • The target lesion(s) is located within an aneurysm or associated with an aneurysm in the vessel segment either proximal or distal to the target lesion(s).
  • There is angiographic evidence of unresolved thrombus at the target lesion(s) or within the target vessel that does not resolve with infusion of thrombolytics and/or mechanical thrombectomy (using an approved device) without adverse events/complications.
  • The subject has undergone any non-iliac percutaneous intervention(s) < 7 days prior to the index procedure.

Trial locations and contacts

29 sites in 1 country.

29 sites in 1 country

United States29 sites
  • Kentucky Heart Foundation

    Ashland, Kentucky, 41101

  • Steward St. Elizabeth Medical Center of Boston Inc.

    Boston, Massachusetts, 02135

  • The Cooper Health System

    Camden, New Jersey, 08103

  • University Surgical Associates, LLC

    Chattanooga, Tennessee, 37403

  • Loyola University Chicago

    Chicago, Illinois, 60637

  • BCS Heart, LLP.

    College Station, Texas, 77845

  • South Carolina Heart Center, P.A.

    Columbia, South Carolina, 29204

  • Saint Vincent Consultants in Cardiovascular Diseases, LLC

    Erie, Pennsylvania, 16502

  • McLeod Regional Medical Center

    Florence, South Carolina, 29501

  • South Florida Medical Imaging, PA

    Fort Lauderdale, Florida, 33308

  • Houston Center for Vascular Health

    Houston, Texas, 77030

  • The Methodist Hospital Research Institute dba Houston Methodist Research Institute

    Houston, Texas, 77030

  • The Huntington Heart Center

    Huntington, New York, 11743

  • Heartland Vascular Center

    Joliet, Illinois, 60435

  • University of Kansas Medical Center Research Institute, Inc.

    Kansas City, Kansas, 66160

  • VA Greater Los Angeles Healthcare System

    Los Angeles, California, 90073

  • Baptist Hospital of Miami

    Miami, Florida, 33176

  • Mount Sinai Medical Center

    Miami Beach, Florida, 33140

  • Aurora Medical Group

    Milwaukee, Wisconsin, 53215

  • Cardiovascular Research of Northwest Indiana, LLC.

    Munster, Indiana, 46321

  • Saint Peter's University Hospital

    New Brunswick, New Jersey, 08901

  • Midwest Aortic Vascular Institute P.C

    North Kansas City, Missouri, 64116

  • Trustees of the University of Pennsylvania

    Philadelphia, Pennsylvania, 19104

  • Allegheny-Singer Research Institute

    Pittsburgh, Pennsylvania, 15212

  • Mission Cardiovascular Research Institute

    Pleasanton, California, 94588

  • Sanford Research

    Sioux Falls, South Dakota, 57104

  • Prairie Education and Research Cooperative (PERC)

    Springfield, Illinois, 62701

  • PinnacleHealth Cardiovascular Institute

    Wormleysburg, Pennsylvania, 17043

  • Metropolitan Hospital d/b/a Metro Health Hospital

    Wyoming, Michigan, 49509

Other trials in United States

About this study

The objectives of this study are to collect post-market confirmatory evidence of the safety and effectiveness of the Bard® LifeStent® Vascular Stent System and LifeStent® XL Vascular Stent System (together the "LifeStent® Vascular Stent System").

Read the detailed description

The study is a prospective, multi-center, single-arm, non-randomized study enrolling up to 234 subjects with lifestyle-limiting claudication or ischemic rest pain attributable to lesion(s) (stenosed, occluded, restenosed, or re-occluded) in the infra-inguinal segment (Superficial femoral artery [SFA] and/or proximal popliteal artery) that are amenable to treatment by percutaneous transluminal angioplasty (PTA) and stenting. All subjects enrolled in the study will receive PTA and stenting.

Being tested
PTA followed by placement of LifeStent® Vascular Stent
Keywords
SFA, Stent, Popliteal, infrainguinal, LifeStent, Peripheral, Arterial

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • PTA followed by placement of LifeStent® Vascular StentDevice

    Also called LifeStent® Vascular Stent; LifeStent® XL Vascular Stent; LifeStent® SOLO(TM) Vascular Stent

    PTA followed by placement of LifeStent® Vascular Stent

Study groups in NCT00908947
Study groupRoleWhat they receive
Overall StudyExperimentalPTA plus stenting with the LifeStent® Vascular Stent System
Receives: Device: PTA followed by placement of LifeStent® Vascular Stent

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Primary Safety Endpoint: Freedom From Death at 30-days and 12-months Post-Index Procedure.

    Primary safety endpoint defined as freedom from occurrence of death at 30-days and 12-months post-index procedure.

    Measured: 30-days and 12-months

  2. Primary Effectiveness Endpoint: Primary Target Lesion Patency (TLP) at Time of Procedure and 12-Months Post-Index Procedure

    The primary effectiveness endpoint of the study, device success, collectively measured both acute and chronic effectiveness.

    Acute effectiveness is defined as successful delivery of the stent to the intended site with the post-deployment stent length being within 10% of the pre-deployment stent length.

    Chronic effectiveness is defined as Primary Target Lesion Patency (TLP) at 12-months post-index procedure, as measured by Duplex Ultrasound (DUS).

    Measured: At time of procedure (acute) and 12-months post-index procedure (Chronic)

Secondary outcomes (17)
  1. Freedom From Target Lesion Revascularization (TLR) and/or Target Vessel Revascularization (TVR) at 12-months Post-index Procedure.

    Target Lesion Revascularization (TLR) is defined as the interval following the index procedure until the first revascularization procedure of the target lesion. Target Vessel Revascularization (TVR) is defined as the interval following the index procedure until the first revascularization procedure (e.g. PTA, stenting, surgical bypass, etc.) in the target vessel.

    Measured: 12-months post-index procedure

  2. Primary Safety: Freedom From Death at 30-days and 12-months Post-Index Procedure for Target Lesion Lengths >160 mm Compared With LifeStent 200 mm.

    • Primary Safety (freedom from occurrence of death at 30-days and 12-months post-index procedure) of the Target Lesion Lengths > 160 mm subgroup compared to the Target Lesions treated with the 200 mm LifeStent® subgroup.

    Measured: 30-days and 12-months Post -Index Procedure

  3. Primary Effectiveness: Device Success at 12-Months Post-Index Procedure for Target Lesion Lengths > 160 mm Compared to LifeStent 200 mm.

    Primary Effectiveness (Device Success) of Target Lesion Lengths > 160 mm subgroup compared to the Target Lesions treated with the 200 mm LifeStent® subgroup.

    Measured: 12-months Post-Index Procedure

  4. Freedom From Fracture at 12 and 24-Months Post-Index Procedure

    Freedom from Fracture (FFF) at 12- and 24-months post-index procedure.

    Measured: 12- and 24-months post-index procedure

  5. Primary Target Lesion Patency (TLP) for Lesions > 160 mm at 12, 24, and 36 Months Post-Index Procedure

    Primary Target Lesion Patency (TLP) - Sustained and Expanded - for Target Lesion Lengths > 160 mm at 12-, 24- and 36-months post-index procedure corresponding to Peak Systolic Ratio (PSR) values of < 2.0, <2.5, and < 3.0.

    Measured: 12, 24, and 36 months Post Index Procedure

  6. Freedom From Target Lesion Revascularization (TLR) and/or Target Vessel Revascularization (TVR) at 12, 24, and 36-Months Post-Index Procedure for Target Lesion Lengths > 160 mm.

    Freedom from Target Lesion Revascularization (TTR) and/or Target Vessel Revascularization (TRV) for Target Lesion Lengths > 160 mm at 12-, 24- and 36-months post-index procedure.

    Measured: 12-, 24-, and 36-months post-index procedure

  7. Secondary Safety Endpoint: Freedom From Composite Adverse Events

    Secondary Safety (Freedom from Composite Adverse Events) is defined as freedom from death (excluding 30-days and 12-months post-index procedure), stroke, myocardial infarction (MI), emergent surgical revascularization, significant distal embolization in target limb, target limb major amputation, and thrombosis of target vessel at 30-days and 12-, 24-, and 36-months post-index procedure.

    Measured: 30-days and 12-, 24-, and 36-months post-index procedure

  8. Number of Stents Deployed With Acute Technical Success

    Acute technical success is defined as successful deployment of the stent to the intended location.

    Measured: Intra-procedure

  9. Number of Acute Lesion Success

    Acute lesion success is defined as attainment of ≤ 30% residual stenosis of the target lesion using any percutaneous method and/or non-investigational device (i.e., post-dilatation) based on angiographic data.

    Measured: Intra-procedure

  10. Number of Procedures With Acute Success

    Acute procedure success is defined as lesion success and no peri-procedural complications (death, stroke, MI, emergent surgical revascularization, significant distal embolization in target limb, and thrombosis of target vessel).

    Measured: Intra-procedure

  11. Sustained Freedom From Target Lesion Reintervention (TLR) and/or Target Vessel Reintervention (TVR) at 24 and 36 Months Post-Index Procedure

    Sustained Freedom from Target Lesion Reintervention (TLR) and/or Target Vessel Reintervention (TVR) at 24- and 36-months post-index procedure.

    Measured: 24- and 36-months post-index procedure

  12. Number of Participants With Sustained Hemodynamic Success at 30-days, 12-, 24-, and 36-Months Post Index Procedure

    Sustained hemodynamic success is defined as sustained improvement of Ankle-Brachial Index (ABI) from baseline value of ≥ 0.15 at 30-days and 12-, 24-, and 36-months post-index procedure without the need for repeated Target Lesion Revascularization (TLR) in surviving subjects.

    Measured: 30 days, 12-, 24-, and 36-months post-index procedure

  13. Number of Participants With Sustained Clinical Success at 30-Days, 12, 24, and 36- Months Post-Index Procedure

    Sustained clinical success is defined as sustained cumulative improvement from baseline value of ≥ 1 category according to Rutherford et al.12 at 30-days and 12-, 24-, and 36-months post-index procedure without the need for repeated TLR in surviving subjects.

    Measured: 30-days and 12-, 24-, and 36-months post-index procedure

  14. Sustained Target Lesion Patency (TLP) at 24 and 36 Months Post-Index Procedure

    Sustained Target Lesion Patency (TLP) was measured at 24- and 36-months post-index procedure corresponding to PSR < 2.5.

    Measured: 24- and 36-months post-index procedure

  15. Expanded Target Lesion Patency (TLP) for Peak Systolic Velocity Ratio (PSR) < 3.0 at 12, 24, and 36 Months Post-Index Procedure

    Expanded TLP was measured at 12-, 24- and 36-months post-index procedure corresponding to Peak Systolic Velocity Ratio (PSR) < 3.0.

    Measured: 12, 24, and 36 months Post-Index Procedure

  16. Cumulative (Primary Assisted and Secondary) Target Lesion Patency (TLP) at 12, 24, and 36 Months Post-Index Procedure

    Cumulative (primary-assisted and secondary) Target Lesion Patency (TLP) was measured at 12-, 24-, and 36-months post-index procedure corresponding to Peak Systolic Velocity Ratio (PSR) < 2.5, and PSR < 3.0.

    Measured: 12, 24, and 36 Months Post-Index Procedure

  17. Change From Baseline in Walking Impairment Questionnaire (WIQ) Results at 30-Days and 12, 24 and 36-Months Post-Index Procedure

    The Walking Impairment Questionnaire (WIQ) evaluation scale values range from 0 to 100, with 0 meaning inability to complete the specific task and 100 representing no difficulty in completing the task. A higher score (mean) represents an improvement in walking abilities compared to baseline measure. The results below represent, for each item measured (pain, walking distance, walking speed, and stair climbing), the mean difference between the score observed at Baseline and those observed at 30-days, 12-, 24-, and 36-months post-index procedure.

    Measured: 30-days, and 12-, 24-, and 36-months post-index procedure

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted27 May 2009 (estimated)
  2. Study startFeb 2011
  3. Primary completion18 Sep 2018
  4. Study completion19 Sep 2018

Why it stopped: Unable to enroll the required number of subjects

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
173 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00908947
Sponsor's protocol ID
BPV-08-001
Acronym
CONTINUUM
Status last verified
Nov 2019
First submitted
26 May 2009
Last updated
19 Nov 2019
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
Yes

Questions about this trial

What is this clinical trial studying?

A study testing PTA followed by placement of LifeStent® Vascular Stent in people with Superficial Femoral Artery Stenosis, run by C. R. Bard at 29 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 19 Nov 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 29 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 6 Nov 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Primary Safety Endpoint: Freedom From Death at 30-days and 12-months Post-Index Procedure. (time frame: 30-days and 12-months). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Nov 2019.

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