CClinicalTrials.gg
CompletedNCT01787799EVOLVE II QCAUpdated Mar 16, 2016Results posted

EVOLVE II QCA: A Prospective, Multicenter Trial to Assess the SYNERGY Stent System for the Treatment of Atherosclerotic Lesion(s)

A Phase 3 interventional study of SYNERGY in Atherosclerotic Lesion(s), sponsored by Boston Scientific Corporation. Completed at 13 sites in 4 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2016-03-16.

Sponsored by Boston Scientific Corporation · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
100
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate 9 month angiographic and intravascular ultrasound (IVUS) data for the SYNERGY Everolimus-Eluting Platinum Chromium Coronary Stent System (SYNERGY Stent System) in the treatment of subjects with atherosclerotic lesion(s) ≤34 mm in length (by visual estimate) in native coronary arteries ≥2.25 mm to ≤4.0 mm in diameter (by visual estimate).

02

Conditions studied

  • Atherosclerotic Lesion(s)

Keywords

  • Drug-eluting stents
03

In context

Lead sponsor

Boston Scientific Corporation is the lead sponsor of 517 studies on the registry; 38 are open to participants now.

Of its 64 completed or terminated interventional studies of FDA-regulated products, 56 (88%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Subject must be at least 18 years of age
  • Subject (or legal guardian) understands the trial requirements and the treatment procedures and provides written informed consent before any trial-specific tests or procedures are performed
  • For subjects less than 20 years of age enrolled at a Japanese site, the subject and the subject's legal representative must provide written informed consent before any study-specific tests or procedures are performed
  • Subject is eligible for percutaneous coronary intervention (PCI)
  • Subject has symptomatic coronary artery disease with objective evidence of ischemia or silent ischemia
  • Subject is an acceptable candidate for coronary artery bypass grafting (CABG)
  • Subject is willing to comply with all protocol-required follow-up evaluation

Angiographic Inclusion Criteria (visual estimate)

  • Target lesion(s) must be located in a native coronary artery with a visually estimated reference vessel diameter (RVD) ≥2.25 mm and ≤4.0 mm
  • Target lesion(s) length must be ≤34 mm (by visual estimate)
  • Target lesion(s) must have visually estimated stenosis ≥50% and \<100% with thrombolysis in Myocardial Infarction (TIMI) flow >1 and one of the following (stenosis ≥70%, abnormal fractional flow reserve (FFR), abnormal stress or imaging stress test, or elevated biomarkers prior to the procedure)
  • Coronary anatomy is likely to allow delivery of a study device to the target lesions(s)
  • The first lesion treated must be successfully pre-dilated/pretreated

Exclusion criteria

Exclusion Criteria:

  • Subject has clinical symptoms and/or electrocardiogram (ECG) changes consistent with acute ST elevation MI (STEMI)
  • Subject has cardiogenic shock, hemodynamic instability requiring inotropic or mechanical circulatory support, intractable ventricular arrhythmias, or ongoing intractable angina
  • Subject has received an organ transplant or is on a waiting list for an organ transplant
  • Subject is receiving or scheduled to receive chemotherapy within 30 days before or after the index procedure
  • Planned PCI (including staged procedures) or CABG after the index procedure
  • Subject previously treated at any time with intravascular brachytherapy
  • Subject has a known allergy to contrast (that cannot be adequately premedicated) and/or the trial stent system or protocol-required concomitant medications (e.g., platinum, platinum-chromium alloy, stainless steel, everolimus or structurally related compounds, polymer or individual components, all P2Y12 inhibitors (clopidogrel, ticlopidine, prasugrel, or ticagrelor), or aspirin)
  • Subject has one of the following (as assessed prior to the index procedure):

    • Other serious medical illness (e.g., cancer, congestive heart failure) with estimated life expectancy of less than 24 months
    • Current problems with substance abuse (e.g., alcohol, cocaine, heroin, etc.)
    • Planned procedure that may cause non-compliance with the protocol or confound data interpretation
  • Subject is receiving chronic (≥72 hours) anticoagulation therapy (i.e., heparin, coumadin) for indications other than acute coronary syndrome
  • Subject has a platelet count \<100,000 cells/mm3 or >700,000 cells/mm3
  • Subject has a white blood cell (WBC) count \< 3,000 cells/mm3
  • Subject has documented or suspected liver disease, including laboratory evidence of hepatitis
  • Subject is on dialysis or has baseline serum creatinine level >2.0 mg/dL (177µmol/L)
  • Subject has a history of bleeding diathesis or coagulopathy or will refuse blood transfusions
  • Subject has had a history of cerebrovascular accident (CVA) or transient ischemic attack (TIA) within the past 6 months
  • Subject has an active peptic ulcer or active gastrointestinal (GI) bleeding
  • Subject has severe symptomatic heart failure (i.e., New York Heart Association (NYHA) class IV)
  • Subject is participating in another investigational drug or device clinical trial that has not reached its primary endpoint
  • Subject intends to participate in another investigational drug or device clinical trial within 12 months after the index procedure
  • Subject with known intention to procreate within 12 months after the index procedure (women of child-bearing potential who are sexually active must agree to use a reliable method of contraception from the time of screening through 12 months after the index procedure)
  • Subject is a woman who is pregnant or nursing (a pregnancy test must be performed within 7 days prior to the index procedure in women of child-bearing potential)

Angiographic Exclusion Criteria (visual estimate)

Planned treatment of more than 3 lesions

  • Planned treatment of lesions in more than 2 major epicardial vessels
  • Planned treatment of a single lesion with more than 1 stent
  • Subject has 2 target lesions in the same vessel that are separated by less than 15 mm (by visual estimate)
  • Target lesion(s) is located in the left main
  • Target lesion(s) is located within 3 mm of the origin of the left anterior descending (LAD) coronary artery or left circumflex (LCx) coronary artery by visual estimate.
  • Target lesion(s) is located within a saphenous vein graft or an arterial graft
  • Target lesion(s) will be accessed via a saphenous vein graft or arterial graft
  • Target lesion(s) with a TIMI flow 0 (total occlusion) or TIMI flow 1 prior to guide wire crossing
  • Target lesion(s) treated during the index procedure that involves a complex bifurcation (e.g., bifurcation lesion requiring treatment with more than 1 stent)
  • Target lesion(s) is restenotic from a previous stent implantation or study stent would overlap with a previous stent
  • Subject has unprotected left main coronary artery disease (>50% diameter stenosis)
  • Subject has been treated with any type of PCI (i.e., balloon angioplasty, stent, cutting balloon atherectomy) within 24 hours prior to the index procedure
  • Thrombus, or possible thrombus, present in the target vessel (by visual estimate)
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
100 participants (actual)

Study arms

  • Experimental
    SYNERGY Stent System

    SYNERGY Everolimus-Eluting Platinum Chromium Coronary Stent System (SYNERGY Stent System)

    Device: SYNERGY

Interventions

  • DeviceSYNERGY

    Synergy is a device/drug combination product composed of two components, a device (coronary stent system including a chromium stent platform) and a drug product (a formulation of everolimus contained in a bioabsorbable polymer coating.

06

What researchers measure

Primary outcomes

  1. In-stent Late Loss

    In-stent late loss at 9 months post-procedure as measured by quantitative coronary angiography (QCA)

    Time frame: 9 month

07

Results

Posted Mar 16, 2016

Participant flow

A total of 100 subjects were enrolled at 12 centers in Australia, New Zealand, Singapore and Japan between March 25, 2013 and October 15, 2013.

Participant flow — Overall Study
MilestoneSYNERGY Stent System
Started100
Completed100
Not completed0

Outcome measures

PrimaryIn-stent Late Loss

In-stent late loss at 9 months post-procedure as measured by quantitative coronary angiography (QCA)

Time frame:
9 month
Reported as:
Mean · mm
In-stent Late Loss
mmSYNERGY Stent System
In-stent Late Loss0.23 (0.16 to 0.29)

Adverse events

Collected over Adverse event information was collected through 12 months.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
SYNERGY Stent System—38/100 (38%)73/100 (73%)
Most frequent serious events
Showing 10 of 40
Most frequent serious events
EventSYNERGY Stent System
Coronary Artery DissectionCardiac disorders7/100
Angina PectorisCardiac disorders6/100
Non-cardiac chest painGeneral disorders5/100
Myocardial IschemiaCardiac disorders3/100
Coronary Artery StenosisCardiac disorders2/100
PalpitationsCardiac disorders2/100
PresyncopeNervous system disorders2/100
MeningitisInfections and infestations2/100
PneumoniaInfections and infestations2/100
Angina UnstableCardiac disorders1/100
Most frequent other events
Showing 10 of 96
Most frequent other events
EventSYNERGY Stent System
Myocardial InfarctionCardiac disorders23/100
Catheter site haematomaGeneral disorders10/100
Adverse drug reactionGeneral disorders7/100
Non-cardiac chest painGeneral disorders7/100
HeadacheNervous system disorders7/100
ContusionInjury, poisoning and procedural complications6/100
Angina PectorisCardiac disorders5/100
PresyncopeNervous system disorders5/100
HypotensionVascular disorders4/100
Catheter site haemorrhageGeneral disorders3/100

Baseline characteristics

Subjects greater than or equal to 18 years of age with symptomatic coronary artery disease with objective evidence of ischemia or silent ischemia. Subjects received the SYNERGY stent system for treatment of atherosclerotic lesion(s) less than or equal to 34mm in length and between 2.25mm and 4.0mm in diameter, both by visual estimate.

Age, Continuous
Age, Continuous(years)SYNERGY Stent System
Mean64.49 ± 10.21
Sex: Female, Male
Sex: Female, Male(Participants)SYNERGY Stent System
Female20
Male80
Race/Ethnicity, Customized
Race/Ethnicity, Customized(participants)SYNERGY Stent System
American Indian or Alaska Native0
Asian28
Black, of African Heritage0
Caucasian70
Hispanic or Latino0
Native Hawaiian or other Pacific Islader0
Other2
Not disclosed0
Region of Enrollment
Region of Enrollment(participants)SYNERGY Stent System
New Zealand69
Singapore11
Japan10
Australia10
Cardiac Risk Factors
Cardiac Risk Factors(participants)SYNERGY Stent System
Hyperlipidemia Requiring Medication90
Hypertension Requiring Medication71
Family History of Coronary Artery Disease57
History of PCI33
History of Myocardial Infarction18
Current Diabetes Mellitus; Medically Treated17
Lesion Characteristics
Lesion Characteristics(mm)SYNERGY Stent System
Reference Vessel Diameter2.66 ± 0.46
Lesion Length14.38 ± 7.49
Minimum Lumen Diameter0.86 ± 0.28
Percent Diameter Stenosis67.54 ± 9.59
08

Study locations

13 sites
  • The Prince Charles Hospital
    Chermside, Queensland 4032, Australia
  • Monash Medical Centre-Clayton Campus
    Clayton, Victoria 3168, Australia
  • St Vincent's Hospital Melbourne
    Fitzroy, Victoria 3085, Australia
  • Fremantle Hospital
    Fremantle, Western Australia 6160, Australia
  • Shonan Kamakura General Hospital
    Kamakura-shi, Kanagawa 247-8533, Japan
  • Mercy Angiography Unit, Ltd.
    Auckland, 1003, New Zealand
  • Auckland City Hospital
    Auckland, 1010, New Zealand
  • Ascot Angiography Ltd
    Auckland, 1050, New Zealand
  • Middlemore Hospital
    Auckland, 1640, New Zealand
  • North Shore Hospital
    Auckland, 622, New Zealand
  • Christchurch Hospital NZ
    Christchurch, 8011, New Zealand
  • National University Hospital
    Singapore, 119074, Singapore
  • National Heart Centre
    Singapore, 168752, Singapore
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 16, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT01787799
Lead sponsor
Boston Scientific Corporation
Collaborators
Beth Israel Deaconess Medical Center, Medstar Health Research Institute, Quintiles, Inc., Medidata Solutions
Responsible party
Sponsor
First posted
Feb 11, 2013
Start date
Mar 2013
Primary completion
Aug 2014
Completion
Oct 2014
Results posted
Mar 16, 2016
Last update
Mar 16, 2016

Study contacts

Ian Meredith, Professor
principal investigator · Monash Medical Centre-Clayton Campus, 246 Clayton Road, 3168 Clayton, Victoria, Australia

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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