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Coronary Artery BypassPhase 4SOS-Xience VNCT00911976

Study of the Xience V Everolimus-eluting Stent in Saphenous Vein Graft Lesions

A Phase 4 study testing Xience V coronary stent in people with Coronary Artery Bypass and Atherosclerosis, run by North Texas Veterans Healthcare System at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The specific aim of the SOS-Xience V study is to examine the 12-month incidence of binary angiographic in-stent restenosis after implantation of the Xience V stent in aortocoronary saphenous vein bypass graft lesions. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Coronary Artery Bypass, Atherosclerosis
What is being tested?
Xience V coronary stent
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
1 siteUnited States
Study dates
May 2009to Jul 2011
Phase
Phase 4
Are there results?
None posted in the registry

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

Who may be able to join

  • Age > 18 years
  • Need for percutaneous coronary intervention of a 50-99% de novo SVG lesion that is between 2.5 and 4.5 mm in diameter, is ≤ 22 mm in length, and can be treated with implantation of a single stent
  • Use of an embolic protection device during the SVG intervention
  • Able and willing to return for angiographic follow-up after 12 months
  • Agree to participate and provide informed consent

Who cannot join

  • Use of stents other than the Xience V stent
  • Planned non-cardiac surgery within the following 12 months
  • Presentation with an ST-segment elevation acute myocardial infarction
  • Any previous percutaneous treatment of the target lesion (with balloon angioplasty, stent, intravascular brachytherapy etc)
  • Any previous percutaneous treatment of the target vessel (of a lesion different than the target lesion) within the prior 12 months
  • Hemorrhagic diatheses, or refusal to receive blood transfusions
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  • Current treatment with warfarin
  • Recent positive pregnancy test, breast-feeding, or possibility of a future pregnancy
  • Coexisting conditions that limit life expectancy to less than 12 months
  • Patients who have a creatinine above 2.5 mg/dL (unless they require hemodialysis, in which case they are eligible to participate)
  • Patients allergic to contrast material that can not be adequately premedicated
  • History of an allergic reaction or significant sensitivity to everolimus
  • Documented left ventricular ejection fraction (LVEF) < 25% at most recent evaluation

Trial locations and contacts

1 site in 1 country.

United States1 site
  • VA North Texas Healthcare System

    Dallas, Texas, 75216

Other trials in United States

About this study

Official title: Prospective Evaluation of the Xience V Everolimus-Eluting Stent In Saphenous Vein Graft Atherosclerosis: The Stenting Of Saphenous Vein Grafts Xience V Angiographic Study (SOS-Xience V)

The specific aim of the SOS-Xience V study is to examine the 12-month incidence of binary angiographic in-stent restenosis after implantation of the Xience V stent in aortocoronary saphenous vein bypass graft lesions.

Read the detailed description

Implantation of bare metal coronary stents (BMS) is currently the preferred percutaneous treatment for aortocoronary saphenous vein bypass graft (SVG) lesions, but is associated with high risk for in-stent restenosis. Although drug-eluting stents (DES) appear promising, there are limited and conflicting data on their efficacy and safety in SVGs. Our group recently completed and reported the results of the SOS (Stenting Of Saphenous vein grafts) trial that compared a paclitaxel-eluting stent with a similar BMS. There is currently no data on the use of the second generation DES in these challenging lesions. The SOS-Xience V study will examine the effects of the Xience V everolimus-eluting stent in SVG lesions.

The specific aim of SOS-Xience V is to examine the 12-month incidence of binary angiographic in-stent restenosis (defined as a stenosis of > 50% of the minimum lumen diameter of the target segment) after implantation of the Xience V stent in SVG lesions.

The Xience V stent will be implanted in 40 consecutive patients who need stenting of a SVG lesion. Patients will undergo repeat follow-up angiography and intravascular ultrasonography at 12 months and will be followed clinically for 12 months to determine:

  1. the incidence of binary angiographic in-stent restenosis, as assessed by 12 month follow-up quantitative coronary angiography (primary study endpoint), and
  2. intra-stent intimal hyperplasia volume accumulation at 12 months, as measured by intravascular ultrasonography, and (b) 12-month incidence of ischemia-driven target vessel revascularization, stent thrombosis, and target vessel failure (composite of cardiac death, myocardial infarction, and target vessel revascularization) (secondary study endpoints), and (c) percent stent strut coverage by optical coherence tomography
Being tested
Xience V coronary stent
Keywords
Coronary artery bypass, Stents, Angioplasty, Transluminal, Percutaneous Coronary, Coronary Restenosis, Everolimus, Saphenous vein grafts
Medical subject headings
Atherosclerosis, Coronary Restenosis

What participants receive

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

  • Xience V coronary stentDevice

    The Xience V stent will be implanted in aortocoronary saphenous vein bypass graft lesions

Study groups in NCT00911976
Study groupRoleWhat they receive
Xience VExperimentalImplantation of the Xience V stent in saphenous vein graft lesions
Receives: Device: Xience V coronary stent

What is being measured

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

  1. the incidence of binary angiographic in-stent restenosis, as assessed by 12 month follow-up quantitative coronary angiography

    Measured: 12 months

Secondary outcomes (3)
  1. intra-stent intimal hyperplasia volume accumulation at 12 months, as measured by intravascular ultrasonography

    Measured: 12 months

  2. incidence of ischemia-driven target vessel revascularization, stent thrombosis, and target vessel failure (composite of cardiac death, myocardial infarction, and target vessel revascularization)

    Measured: 12 months

  3. Percent stent strut coverage by optical coherence tomography

    Measured: 12 months

Timeline

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

  1. First posted3 Jun 2009 (estimated)
  2. Study startMay 2009
  3. Primary completionJul 2011
  4. Study completionJul 2011

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 4
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00911976
Sponsor's protocol ID
09-016
Acronym
SOS-Xience V
Status last verified
Oct 2012
First submitted
2 Jun 2009
Last updated
26 Oct 2012
Results posted
No
Data monitoring committee
Yes

Publications

  • Papayannis AC, Michael TT, Yangirova D, Abdel-Karim AR, Kohlhaas J, Mahmood A, Addo T, Haagen D, Makke L, Roesle M, Rangan B, Banerjee S, Brilakis ES. Optical coherence tomography analysis of the stenting of saphenous vein graft (SOS) Xience V Study: use of the everolimus-eluting stent in saphenous vein graft lesions. J Invasive Cardiol. 2012 Aug;24(8):390-4.

    PubMed 22865309

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Xience V coronary stent in people with Coronary Artery Bypass and Atherosclerosis, run by North Texas Veterans Healthcare System at 1 site 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 5 inclusion and 13 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: finished, as of the sponsor's last update on 26 Oct 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

the incidence of binary angiographic in-stent restenosis, as assessed by 12 month follow-up quantitative coronary angiography (time frame: 12 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00911976, which also lists 1 linked publication.

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 26 Oct 2012.

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