MedPath

Absorb IV Randomized Controlled Trial

Not Applicable
Completed
Conditions
Coronary Artery Stenosis
Coronary Stenosis
Coronary Artery Disease
Coronary Disease
Interventions
Device: Absorb BVS
Device: XIENCE
Registration Number
NCT02173379
Lead Sponsor
Abbott Medical Devices
Brief Summary

ABSORB IV is a prospective, randomized (1:1, Absorb BVS to XIENCE), single-blind, multi-center study, registering approximately 2610 subjects from approximately 140 sites in the United States and outside the United States. ABSORB IV is a continuation of ABSORB III (NCT01751906) trial which are maintained under one protocol because both trial designs are related. The data from ABSORB III and ABSORB IV will be pooled to support the ABSORB IV primary endpoint. Both the trials will evaluate the safety and effectiveness of Absorb BVS.

The ABSORB IV Randomized Controlled Trial (RCT) is designed to continue to evaluate the safety and effectiveness as well as the potential short and long-term benefits of Abbott Vascular Absorb™ Bioresorbable Vascular Scaffold (BVS) System, and the Absorb GT1™ BVS System (once commercially available), as compared to the commercially approved, control stent XIENCE.

Detailed Description

ABSORB IV:

A. Primary Objective:

* To evaluate 30-day clinical outcomes of the Absorb BVS compared to XIENCE in the treatment of subjects with ischemic heart disease caused by up to three de novo native coronary artery lesions in a maximum of two epicardial vessels, with a maximum of two lesions per epicardial vessel.

* To evaluate long-term clinical outcomes of Absorb BVS compared to XIENCE in the treatment of subjects with ischemic heart disease caused by up to three denovo native coronary artery lesions in a maximum of two epicardial vessels, with a maximum of two lesions per epicardial vessel.

B. Secondary Objectives:

* To evaluate 1-year clinical outcomes of the Absorb BVS compared to XIENCE in the treatment of subjects with ischemic heart disease caused by up to three de novo native coronary artery lesions in a maximum of two epicardial vessels, with a maximum of two lesions per epicardial vessel.

* To evaluate the incidence of angina occurring within 1 year, with treatment of Absorb BVS compared to XIENCE.

The enrollment of the 2610 subjects in ABSORB IV will start after enrollment completion of the 2000 primary analysis subjects in ABSORB III. All registered subjects will have clinical follow-up at 30, 90, 180, 270 days and 1, 2, 3, 4 and 5 years.

Note: All registered subjects in ABSORB IV will be followed up to 5 years via telephone contact/office visit if it is necessary as determined by the Sponsor.

In addition, all 2610 subjects in ABSORB IV will complete patient-reported outcome (PRO) self-administered questionnaires at baseline, 30 days,180 days, 1 year, 3 years and 5 years.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
2604
Inclusion Criteria
  1. Subject must be at least 18 years of age.

  2. Subject or a legally authorized representative must provide written Informed Consent prior to any study related procedure, per site requirements.

  3. Subject must have evidence of myocardial ischemia (e.g., silent ischemia, stable or unstable angina, non-ST-segment elevation MI (NSTEMI), OR recent ST-segment elevation MI (STEMI). Patients with stable coronary syndromes can be enrolled any time after symptom onset if eligibility criteria are otherwise met. Patients with acute coronary syndrome can be enrolled under the following conditions:

    1. Unstable angina or NSTEMI within 2 weeks of the index procedure.
    2. STEMI > 72 hours ≤ 2 weeks prior to the index procedure.

    Note: Subjects with Unstable angina (UA) or NSTEMI or STEMI occurring > 2 weeks of the index procedure can be included in the trial but should be categorized based on their current angina class.

  4. Subjects must be suitable for PCI. Subjects with stable angina or silent ischemia and < 70% diameter stenosis must have objective signs of ischemia as determined by one of the following: abnormal stress echocardiogram, nuclear scan, electrocardiogram (ECG), positron emission tomography (PET), magnetic resonance imaging (MRI), and/or fractional flow reserve (FFR).

    (Note: subject with silent ischemia must have a prior history of typical angina, angina-equivalent symptoms, or atypical angina within the past year to be included in the trial.)

  5. Subject must be an acceptable candidate for coronary artery bypass graft (CABG) surgery.

  6. Female subject of childbearing potential who does not plan pregnancy for up to 1 year following the index procedure. For a female subject of childbearing potential a pregnancy test must be performed with negative results known within 7 days prior to the index procedure per site standard.

  7. Female subject is not breast-feeding at the time of the screening visit and will not be breast-feeding for at least 1 year following the index procedure.

  8. Subject agrees to not participate in any other investigational or invasive clinical study for a period of 5 years following the index procedure.

Angiographic Inclusion Criteria:

Treatment of up to three de novo lesions in a maximum of two epicardial vessels, with a maximum of two lesions per epicardial vessel. If only a single lesion is to be treated, it must be a target lesion. Up to one non-target lesion can be treated. Non-target lesion treatment can occur only in a non-target vessel.

If there are two target lesions within the same epicardial vessel, the two target lesions must be at least 15 mm apart per visual estimation; otherwise this is considered as a single target lesion for lesion (and stent) length determination and must be treated with a single study device.

  1. Target lesion(s) must be located in a native coronary artery with a visually estimated or quantitatively assessed %DS of ≥50% and < 100%, with a thrombolysis in myocardial infarction (TIMI) flow of ≥ 1, and one of the following: stenosis ≥ 70%, an abnormal functional test (e.g., fractional flow reserve ≤0.80 AND/OR a positive stress test), or presentation with an acute coronary syndrome (unstable angina or NSTEMI within 2 weeks of index procedure, or STEMI >72 hours but ≤ 2 weeks prior to the index procedure).

  2. Target lesion(s) must be located in a native coronary artery with reference vessel diameter (RVD) by visual estimation of ≥ 2.50 mm and ≤ 3.75 mm.

  3. Target lesion(s) must be located in a native coronary artery with length by visual estimation of ≤ 24 mm.

Note: Subjects with Unstable angina (UA) or NSTEMI or STEMI occurring > 2 weeks of the index procedure can be included in the trial but should be categorized based on their current angina class.

Note: To exclude enrollment of excessively small vessels, if the operator believes that based on visual angiographic assessments, the distal reference vessel diameter is ≤ 2.75 mm such that the plan is to implant a 2.5 mm device (stent or scaffold) in a target lesion, it is strongly recommended that either on-line QCA or intravascular imaging (ultrasound or optical coherence tomography) is used and demonstrates that the measured distal RVD for this target lesion is ≥ 2.50 mm (by at least one of these imaging modalities). This measurement may be performed before or after pre-dilatation, but before randomization. If the distal RVD measures <2.5 mm, that lesion IS NOT ELIGIBLE for randomization. Such a lesion may be treated as a non-target lesion.

General

Exclusion Criteria
  1. Any surgery requiring general anesthesia or discontinuation of aspirin and/or a P2Y12 receptor inhibitor is planned within 12 months after the procedure.

  2. Subject has known hypersensitivity or contraindication to device material and its degradants (everolimus, poly (L-lactide), poly (DL-lactide), lactide, lactic acid) and cobalt, chromium, nickel, platinum, tungsten, acrylic and fluoro polymers that cannot be adequately pre-medicated. Subject has a known contrast sensitivity that cannot be adequately pre-medicated.

  3. Subject has known allergic reaction, hypersensitivity or contraindication to any of the following: aspirin; or clopidogrel and prasugrel and ticagrelor; or heparin and bivalirudin, and therefore cannot be adequately treated with study medications.

  4. Subject had an acute STEMI (appropriate clinical syndrome with ≥1 mm of ST-segment elevation in ≥2 contiguous leads) within 72 hours of the index procedure.

  5. Subject has a cardiac arrhythmia identified at the time of screening for which at least one of the following criteria is met:

    1. Subject requires coumadin or any other agent for chronic oral anticoagulation.
    2. Subject is likely to become hemodynamically unstable due to their arrhythmia.
    3. Subject has poor survival prognosis due to their arrhythmia.
  6. Subject has a left ventricular ejection fraction (LVEF) < 30% assessed by any quantitative method, including but not limited to echocardiography, MRI, multiple-gated acquisition (MUGA) scan, contrast left ventriculography, PET scan, etc. LVEF may be obtained within 6 months prior to the procedure for subjects with stable CAD. For subjects presenting with acute coronary syndrome (ACS), LVEF must be assessed within 1 week of the index procedure and after ACS presentation, which may include contrast left ventriculography during the index procedure but prior to randomization in order to confirm the subject's eligibility.

  7. Subject has undergone prior PCI within the target vessel during the last 12 months. Prior PCI within the non-target vessel or any peripheral intervention is acceptable if performed anytime >30 days before the index procedure, or between a minimum of 24 hours and 30 days before the index procedure if successful and uncomplicated.

  8. Subject requires future staged PCI of any lesion other than a target lesion identified at the time of index procedure; or subject requires future peripheral vascular interventions < 30 days after the index procedure.

  9. Subject has received any solid organ transplants or is on a waiting list for any solid organ transplants.

  10. At the time of screening, the subject has a malignancy that is not in remission.

  11. Subject is receiving immunosuppressant therapy or has known immunosuppressive or severe autoimmune disease that requires chronic immunosuppressive therapy (e.g., human immunodeficiency virus, systemic lupus erythematosus, etc.). Note: corticosteroids are not included as immunosuppressant therapy.

  12. Subject has previously received or is scheduled to receive radiotherapy to a coronary artery (vascular brachytherapy), or the chest/mediastinum.

  13. Subject is receiving or will require chronic anticoagulation therapy (e.g., coumadin, dabigatran, apixaban, rivaroxaban, edoxaban or any other related agent for any reason).

  14. Subject has a platelet count < 100,000 cells/mm3 or > 700,000 cells/mm3.

  15. Subject has a documented or suspected hepatic disorder as defined as cirrhosis or Child-Pugh ≥ Class B.

  16. Subject has renal insufficiency as defined as an estimated glomerular filtration rate (GFR) < 30 ml/min/1.73m2 or dialysis at the time of screening.

  17. Subject is high risk of bleeding for any reason; has a history of bleeding diathesis or coagulopathy; has had a significant gastrointestinal or significant urinary bleed within the past six months.

  18. Subject has had a cerebrovascular accident or transient ischemic neurological attack (TIA) within the past six months, or any prior intracranial bleed, or any permanent neurologic defect, or any known intracranial pathology (e.g. aneurysm, arteriovenous malformation, etc.).

  19. Subject has extensive peripheral vascular disease that precludes safe 6 French sheath insertion. Note: femoral arterial disease does not exclude the patient if radial access may be used.

  20. Subject has a life expectancy <5 years for any non-cardiac or cardiac cause.

  21. Subject is in the opinion of the Investigator or designee, unable to comply with the requirements of the study protocol or is unsuitable for the study for any reason. This includes completion of Patient Reported Outcome instruments.

  22. Subject is currently participating in another clinical trial that has not yet completed its primary endpoint.

  23. Subject is part of a vulnerable population who, in the judgment of the investigator, is unable to give Informed Consent for reasons of incapacity, immaturity, adverse personal circumstances or lack of autonomy. This may include: Individuals with a mental disability, persons in nursing homes, children, impoverished persons, persons in emergency situations, homeless persons, nomads, refugees, and those incapable of giving informed consent. Vulnerable populations also may include members of a group with a hierarchical structure such as university students, subordinate hospital and laboratory personnel, employees of the Sponsor, members of the armed forces, and persons kept in detention.

Angiographic Exclusion Criteria:

All exclusion criteria apply to the target lesion(s) or target vessel(s).

  1. Unsuccessful pre-dilatation, defined as the presence of one or more of the following (note: successful pre-dilatation of at least one target lesion is required prior to randomization):

    1. Residual %diameter stenosis (DS) after pre-dilatation is ≥ 40% (per visual estimation). Note: achieving a %DS ≤ 20% prior to randomization is strongly recommended.
    2. TIMI flow grade <3 (per visual estimation).
    3. Any angiographic complication (e.g. distal embolization, side branch closure).
    4. Any dissection NHLBI grade D-F.
    5. Any chest pain lasting > 5 minutes.
    6. Any ST-segment depression or elevation lasting > 5 minutes.
  2. Lesion is located in left main or there is a ≥30% diameter stenosis in the left main (unless the left main lesion is a protected left main (i.e. a patent bypass graft to the LAD and/or LCX arteries is present), and there is no intention to treat the protected left main lesion).

  3. Aorto-ostial right coronary artery (RCA) lesion (within 3 mm of the ostium).

  4. Lesion located within 3 mm of the origin of the left anterior descending artery (LAD) or left circumflex artery (LCX).

  5. Lesion involving a bifurcation with a:

    1. side branch ≥ 2 mm in diameter, or
    2. side branch with either an ostial or non-ostial lesion with diameter stenosis >50%, or
    3. side branch requiring dilatation
  6. Anatomy proximal to or within the lesion that may impair delivery of the Absorb BVS or XIENCE stent:

    1. Extreme angulation (≥ 90°) proximal to or within the target lesion.
    2. Excessive tortuosity (≥ two 45° angles) proximal to or within the target lesion.
    3. Moderate or heavy calcification proximal to or within the target lesion. If intravascular ultrasound (IVUS) used, subject must be excluded if calcium arc in the vessel prior to the lesion or within the lesion is ≥ 180°.
  7. Lesion or vessel involves a myocardial bridge.

  8. Vessel has been previously treated with a stent and the target lesion is within 5 mm proximal or distal to a previously stented lesion.

  9. Target lesion located within an arterial or saphenous vein graft or distal to any arterial or saphenous vein graft.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Absorb BVSAbsorb BVSSubjects receiving Absorb Bioresorbable Vascular Scaffold (BVS) System, and the Absorb GT1™ BVS System
XIENCEXIENCESubjects receiving XIENCE V, XIENCE PRIME, or XIENCE Xpedition, XIENCE Alpine, XIENCE Pro (outside of the US only) and XIENCE ProX (outside of the US only)
Primary Outcome Measures
NameTimeMethod
Number of Participants With Target Lesion Failure (TLF)30 days

Target lesion failure (TLF) composite of Cardiac Death, Myocardial Infarction attributable to Target Vessel (TV-MI), or Ischemia-Driven Target Lesion Revascularization (ID-TLR))

Secondary Outcome Measures
NameTimeMethod
Number of Death (Cardiac, Vascular, Non-cardiovascular)5 years

Cardiac death (CD): Any death due to proximate cardiac cause (e.g. MI, low-output failure, fatal arrhythmia), unwitnessed death and death of unknown cause, all procedure related deaths including those related to concomitant treatment. Non-cardiovascular death: Any death not covered by the above definitions such as death caused by infection, malignancy, sepsis, pulmonary causes, accident, suicide or trauma.

For the All-Cause Mortality data, the denominator excludes participants who are lost-to-follow-up or withdrawn (by subject or physician) through a given timepoint without any DMR event (all death, MI and revascularization, respectively). If these participants were included in the denominator in each arm, that would equate to assuming that these participants are alive, potentially underestimating the death rate by inflating the denominator.

Number of Participants With Myocardial Infarction (MI)5 years

* Attributable to target vessel (TV-MI)

* Not attributable to target vessel (NTV-MI)

Number of Participants Experienced With Cardiac Death/All MI/ID-TLR (MACE)30 days

Major adverse cardiac events (MACE) is defined as the composite of cardiac death, all myocardial infarction, and ischemic driven target lesion revascularization (ID-TLR).

Number of Participants Experienced Cardiac Death/All MI/ID-TLR/ID-TVR, Non TL (Target Vessel Failure, TVF)In-hospital (≤ 7 days post index procedure)

Target Vessel Failure (TVF) is the composite of Cardiac Death, Myocardial infarction (MI) or Ischemic-Driven Target Vessel Revascularization (ID-TVR).

Number of Participants Experienced Death/All MI/All Revascularization (DMR)5 years

DMR is the composite of All Death, All Myocardial infarction (MI) and All Revascularization.

TLF at 1-year, Non-inferiority Against the Control1 year

One-sided p-value by using Farrington-Manning non-inferiority test will be used with non-inferiority margin of 4.8%, to be compared with a one-sided significance level of 0.025.

Angina at 1-year, Non-inferiority Against the Control1 year

* Angina is defined as any angina or angina equivalent symptoms determined by the physician and/or research coordinator after interview of the patient, and as adjudicated by a clinical events committee (CEC).

* This analysis will exclude angina or angina equivalent symptoms that occurred following the index procedure through hospital discharge or 7 days, whichever occurs first.

Number of Participants With Target Vessel Myocardial Infarction (TV-MI)5 years

Myocardial infarction attributed to target vessel myocardial infarction (TV-MI)

Number of Participants Experienced All Death/All MI5 years

All deaths includes

* Cardiac death: Any death due to proximate cardiac cause (e.g. MI, low-output failure, fatal arrhythmia), unwitnessed death and death of unknown cause, all procedure related deaths including those related to concomitant treatment.

* Vascular death: Death due to non-coronary vascular causes such as cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause.

* Non-cardiovascular death: Any death not covered by the above definitions such as death caused by infection, malignancy, sepsis, pulmonary causes, accident, suicide or trauma.

Myocardial Infarction (MI) - Q wave MI: Development of new, pathological Q wave on the ECG.

-Non-Q wave MI: Those MIs which are not Q-wave MI

Percentage of Target Lesion With Acute Success- Device Success (Lesion Level Analysis)In-hospital (≤ 7days)

Successful delivery and deployment of the study scaffold/stent at the intended target lesion and successful withdrawal of the delivery system with attainment of final in-scaffold/stent residual stenosis of less than 30% by quantitative coronary angiography (QCA) (by visual estimation if QCA unavailable). When bailout scaffold/stent is used, the success or failure of the bailout scaffold/stent delivery and deployment is not one of the criteria for device success.

Number of Participants With Acute Success- Procedural Success (Subject Level Analysis)In-hospital (≤ 7days)

Achievement of final in-scaffold/stent residual stenosis of less than 30% by QCA (by visual estimation if QCA unavailable) with successful delivery and deployment of at least one study scaffold/stent at the intended target lesion and successful withdrawal of the delivery system for all target lesions without the occurrence of cardiac death, target vessel MI or repeat TLR during the hospital stay (maximum of 7 days).

Number of Participants With Target Vessel Revascularization (TVR)5 years

TVR is defined as any repeat percutaneous intervention or surgical bypass of any segment of the target vessel. The target vessel is defined as the entire major coronary vessel proximal and distal to the target lesion which includes upstream and downstream branches and the target lesion itself.

* TVR includes both Ischemic driven TVR and Non-ischemic driven TVR.

* TVR includes all TVR, excluding TLR

Number of Participants With ID-TVR Excluding TLR5 years

TVR is defined as any repeat percutaneous intervention or surgical bypass of any segment of the target vessel. The target vessel is defined as the entire major coronary vessel proximal and distal to the target lesion which includes upstream and downstream branches and the target lesion itself.

* TVR includes both Ischemic driven TVR and Non-ischemic driven TVR.

* TVR includes all TVR, excluding TLR

Number of Participants Experienced Cardiac Death/All MI5 years

Cardiac death (CD): Any death due to proximate cardiac cause (e.g. MI, low-output failure, fatal arrhythmia), unwitnessed death and death of unknown cause, all procedure related deaths including those related to concomitant treatment.

Number of Participants Experienced Cardiac Death/TV-MI/ID-TLR (TLF)5 years

Target Lesion Failure is composite of Cardiac death/ Target Vessel Myocardial Infarction (TV-MI)/ Ischemic-Driven Target Lesion Revascularization (ID-TLR).

Number of Participants Experienced Cardiac Death/All MI/ID-TLR (Major Adverse Cardiac Events-MACE)In-hospital (≤ 7 days post index procedure)

Major adverse cardiac events (MACE) is defined as the composite of cardiac death, all myocardial infarction, and ischemic driven target lesion revascularization (ID-TLR).

Number of Participants Experienced Cardiac Death/All MI/ID-TLR/ID-TVR, Non TL (TVF)5 years

Target Vessel Failure (TVF) is the composite of Cardiac Death, Myocardial infarction (MI) or Ischemic-Driven Target Vessel Revascularization (ID-TVR).

Number of Participants With Target Lesion Revascularization (TLR)5 years

TLR is defined as any repeat percutaneous intervention of the target lesion or bypass surgery of the target vessel performed for restenosis or other complication of the target lesion. All TLR should be classified prospectively as ischemia driven or not ischemia driven by the investigator prior to repeat angiography.

Number of Participants With Ischemia Driven TLR (ID-TLR)5 years

TLR is defined as any repeat percutaneous intervention of the target lesion or bypass surgery of the target vessel performed for restenosis or other complication of the target lesion. All TLR should be classified prospectively as ischemia driven or not ischemia driven by the investigator prior to repeat angiography

Number of Participants With All Coronary Revascularization5 years

Revascularization includes TLR, TVR excluding TLR, and non TVR.

Number of Participants With Cumulative Scaffold/Stent Thrombosis (Per ARC Definition)0 to 730 Days

Stent thrombosis was defined by Academic Research Consortium (ARC) criteria as definite (angiographic confirmation with at least one of the following: acute onset of ischemic symptoms at rest, new ischemic ECG changes that suggest acute ischemia or typical rise and fall of cardiac biomarkers OR pathological confirmation at autopsy or via examination of tissue retrieved following thrombectomy), probable (any unexplained death within the first 30 days or, regardless of the time after the index procedure, any Myocardial infarction (MI) related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation and in the absence of any other obvious cause), and possible (any unexplained

Number of Participants withTarget Lesion Revascularization (TLR)90 days

TLR is defined as any repeat percutaneous intervention of the target lesion or bypass surgery of the target vessel performed for restenosis or other complication of the target lesion. All TLR should be classified prospectively as ischemia driven or not ischemia driven by the investigator prior to repeat angiography.

Number of Participants Experienced Cardiac Death/All MI/ID-TLR (MACE)5 years

Major adverse cardiac events (MACE) is defined as the composite of cardiac death, all myocardial infarction, and ischemic driven target lesion revascularization (ID-TLR).

Number of Participants With Rehospitalization5 years

* CAD related

* Cardiovascular, non-CAD related

* Non-cardiovascular related

Number of Participants With Target Lesion Failure (TLF)1 year

The analysis will be based on 4610 subjects (2000 primary analysis subjects of ABSORB III and 2610 subjects of ABSORB IV)

Number of Participants With Acute Scaffold/Stent Thrombosis (Per Academic Research Consortium (ARC) Definition)0 - 24 hours post stent implantation

Stent thrombosis was defined by Academic Research Consortium (ARC) criteria as definite (angiographic confirmation with at least one of the following: acute onset of ischemic symptoms at rest, new ischemic ECG changes that suggest acute ischemia or typical rise and fall of cardiac biomarkers OR pathological confirmation at autopsy or via examination of tissue retrieved following thrombectomy), probable (any unexplained death within the first 30 days or, regardless of the time after the index procedure, any Myocardial infarction (MI) related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation and in the absence of any other obvious cause), and possible (any unexplained death from 30 days after intracoronary stenting until end of trial follow-up). Stent thrombosis was categorized as acute (0-24 hours post stent implantation), Subacute (\>24 hours to 30 days post stent implantation), late (\>30 days to 1 year post stent implantation).

Number of Participants With Subacute Scaffold/Stent Thrombosis (Per ARC Definition)>24 hours - 30 days post stent implantation

Stent thrombosis was defined by Academic Research Consortium (ARC) criteria as definite (angiographic confirmation with at least one of the following: acute onset of ischemic symptoms at rest, new ischemic ECG changes that suggest acute ischemia or typical rise and fall of cardiac biomarkers OR pathological confirmation at autopsy or via examination of tissue retrieved following thrombectomy), probable (any unexplained death within the first 30 days or, regardless of the time after the index procedure, any Myocardial infarction (MI) related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation and in the absence of any other obvious cause), and possible (any unexplained death from 30 days after intracoronary stenting until end of trial follow-up). Stent thrombosis was categorized as acute (0-24 hours post stent implantation), Subacute (\>24 hours to 30 days post stent implantation), late (\>30 days to 1 year post stent implantation).

Number of Participants With Late Scaffold/Stent Thrombosis (Per ARC Definition)30 days - 1 year post stent implantation

Stent thrombosis was defined by Academic Research Consortium (ARC) criteria as definite (angiographic confirmation with at least one of the following: acute onset of ischemic symptoms at rest, new ischemic ECG changes that suggest acute ischemia or typical rise and fall of cardiac biomarkers OR pathological confirmation at autopsy or via examination of tissue retrieved following thrombectomy), probable (any unexplained death within the first 30 days or, regardless of the time after the index procedure, any Myocardial infarction (MI) related to documented acute ischemia in the territory of the implanted stent without angiographic confirmation and in the absence of any other obvious cause), and possible (any unexplained death from 30 days after intracoronary stenting until end of trial follow-up). Stent thrombosis was categorized as acute (0-24 hours post stent implantation), Subacute (\>24 hours to 30 days post stent implantation), late (\>30 days to 1 year post stent implantation).

Number of Participants With Repeat Coronary Arteriography5 years

Trial Locations

Locations (120)

Stony Brook University Medical Center

🇺🇸

Stony Brook, New York, United States

Aultman Hospital

🇺🇸

Canton, Ohio, United States

Penn Presbyterian Medical Center

🇺🇸

Philadelphia, Pennsylvania, United States

Houston Methodist Hospital

🇺🇸

Houston, Texas, United States

The Christ Hospital

🇺🇸

Cincinnati, Ohio, United States

Royal Perth Hospital

🇦🇺

Perth, Western Australia, Australia

Integris Baptist Medical Center, Inc.

🇺🇸

Oklahoma City, Oklahoma, United States

Vanderbilt University Medical Center

🇺🇸

Nashville, Tennessee, United States

St. Patrick Hospital

🇺🇸

Missoula, Montana, United States

Kliniken Oberallgau gGmbH

🇩🇪

Immenstadt, Bavaria, Germany

Northwestern Memorial Hospital

🇺🇸

Chicago, Illinois, United States

Klinikum Kempten, Klinikverbund Kempten-Oberallgaeu gGmbH

🇩🇪

Kempten-Allgau, Bavaria, Germany

Johannes Gutenberg-Universitaet

🇩🇪

Mainz, Rhineland-Palatinate, Germany

Rochester General Hospital

🇺🇸

Rochester, New York, United States

Emory University Hospital

🇺🇸

Atlanta, Georgia, United States

Klinikum Oldenburg

🇩🇪

Oldenburg, Lower Saxony, Germany

University Giessen

🇩🇪

Giessen, Hesse, Germany

University of Alabama at Birmingham

🇺🇸

Birmingham, Alabama, United States

CHI Health Bergan Mercy

🇺🇸

Omaha, Nebraska, United States

Carolinas Medical Center-Northeast

🇺🇸

Charlotte, North Carolina, United States

Mercy Gilbert Medical Center

🇺🇸

Gilbert, Arizona, United States

Univ Of California Davis Med Ctr

🇺🇸

Sacramento, California, United States

John Muir Health Concord

🇺🇸

Concord, California, United States

Sharp Memorial Hospital

🇺🇸

San Diego, California, United States

Washington Hospital

🇺🇸

Fremont, California, United States

Cedars-Sinai Medical Center

🇺🇸

Los Angeles, California, United States

Stanford Hospital and Clinics

🇺🇸

Stanford, California, United States

Medical Center of the Rockies

🇺🇸

Loveland, Colorado, United States

Baptist Medical Center Jacksonville

🇺🇸

Jacksonville, Florida, United States

Morton Plant Hospital

🇺🇸

Clearwater, Florida, United States

Tallahassee Memorial Hospital

🇺🇸

Tallahassee, Florida, United States

UF Health Jacksonville

🇺🇸

Jacksonville, Florida, United States

Advocate Christ Medical Center

🇺🇸

Oak Lawn, Illinois, United States

Elkhart General Hospital

🇺🇸

Elkhart, Indiana, United States

St. John's Hospital

🇺🇸

Springfield, Illinois, United States

Eastern Maine Medical Center

🇺🇸

Bangor, Maine, United States

Ochsner Clinic Foundation

🇺🇸

New Orleans, Louisiana, United States

MedStar Union Memorial Hospital

🇺🇸

Baltimore, Maryland, United States

Boston Medical Center

🇺🇸

Boston, Massachusetts, United States

St John Hospital & Medical Center

🇺🇸

Detroit, Michigan, United States

North Mississippi Medical Center

🇺🇸

Tupelo, Mississippi, United States

Mercy Hospital Springfield

🇺🇸

Springfield, Missouri, United States

Barnes Jewish Hospital

🇺🇸

Saint Louis, Missouri, United States

Nebraska Heart Institute Heart Hosp.

🇺🇸

Lincoln, Nebraska, United States

Cooper University Hospital

🇺🇸

Camden, New Jersey, United States

Our Lady of Lourdes Medical Center

🇺🇸

Camden, New Jersey, United States

Englewood Hospital and Medical Center

🇺🇸

Englewood, New Jersey, United States

NewYork-Presbyterian/Queens

🇺🇸

Flushing, New York, United States

NYP Weill Cornell Medical Center

🇺🇸

New York, New York, United States

Novant Health Heart & Vascular Institute/Presbyterian Hospital

🇺🇸

Charlotte, North Carolina, United States

Carolinas Medical Center-Pineville

🇺🇸

Charlotte, North Carolina, United States

Mount Sinai Medical Center

🇺🇸

New York, New York, United States

Columbia University Medical Center

🇺🇸

New York, New York, United States

St. Joseph's Hospital Health Center

🇺🇸

Syracuse, New York, United States

Wake Forest Baptist Medical Center

🇺🇸

Winston-Salem, North Carolina, United States

Mercy St. Vincent Medical Center

🇺🇸

Toledo, Ohio, United States

Cleveland Clinic

🇺🇸

Cleveland, Ohio, United States

Providence St. Vincent Medical Center

🇺🇸

Portland, Oregon, United States

Geisinger Medical Center

🇺🇸

Danville, Pennsylvania, United States

The Miriam Hospital

🇺🇸

Providence, Rhode Island, United States

St. Joseph Medical Center

🇺🇸

Reading, Pennsylvania, United States

Anmed Health Medical Center

🇺🇸

Anderson, South Carolina, United States

Wellmont Holston Valley Medical Center

🇺🇸

Kingsport, Tennessee, United States

Providence Hospital

🇺🇸

Columbia, South Carolina, United States

Baylor Heart and Vascular Hospital

🇺🇸

Dallas, Texas, United States

Carilion Roanoke Memorial Hospital

🇺🇸

Roanoke, Virginia, United States

Liverpool Hospital

🇦🇺

Liverpool, New South Wales, Australia

St. Michael's Hospital

🇨🇦

Toronto, Ontario, Canada

St Vincent's Hospital Melbourne

🇦🇺

Fitzroy, Victoria, Australia

Royal Brisbane and Women's Hospital

🇦🇺

Herston, Queensland, Australia

The Prince Charles Hospital

🇦🇺

Brisbane, Queensland, Australia

Medstar Health Research Institute/ Medstar Washington Hospital Center

🇺🇸

Northwest, Washington, United States

Montreal Heart Institute

🇨🇦

Montreal, Quebec, Canada

Hopital du Sacre-Coeur de Montreal

🇨🇦

Montreal, Quebec, Canada

CHUM-Hotel Dieu

🇨🇦

Montréal, Quebec, Canada

Universitätsklinikum Ulm

🇩🇪

Ulm, Baden-Württemberg, Germany

Universitatsklinikum Freiburg

🇩🇪

Freiburg, Baden-Württemberg, Germany

Immanuel Klinikum Bernau Herzzentrum Brandenburg

🇩🇪

Bernau, Berlin, Germany

Universitatsklinikum Bonn

🇩🇪

Bonn, North Rhine-Westphalia, Germany

Elisabeth-Krankenhaus

🇩🇪

Essen, North Rhine-Westphalia, Germany

Segeberger Kliniken GmbH - Herzzentrum

🇩🇪

Bad Segeberg, Schleswig-Holstein, Germany

National Heart Centre, Singapore, Pte, Ltd.

🇸🇬

Singapore, Singapore

University Of Kentucky Hospital

🇺🇸

Lexington, Kentucky, United States

Emory University Hospital Midtown

🇺🇸

Atlanta, Georgia, United States

Yale-New Haven Hospital

🇺🇸

New Haven, Connecticut, United States

Seton Medical Center

🇺🇸

Austin, Texas, United States

East Texas Medical Center

🇺🇸

Tyler, Texas, United States

Doylestown Hospital

🇺🇸

Doylestown, Pennsylvania, United States

Forbes Hospital

🇺🇸

Monroeville, Pennsylvania, United States

St. Joseph Mercy Hospital

🇺🇸

Ann Arbor, Michigan, United States

Harper University Hospital

🇺🇸

Detroit, Michigan, United States

Northern Michigan Hospital

🇺🇸

Petoskey, Michigan, United States

Genesis Hospital

🇺🇸

Zanesville, Ohio, United States

Ohio State University Medical Center

🇺🇸

Columbus, Ohio, United States

Scripps Memorial Hospital La Jolla

🇺🇸

La Jolla, California, United States

Little Company Of Mary Hospital

🇺🇸

Torrance, California, United States

Scottsdale Healthcare

🇺🇸

Scottsdale, Arizona, United States

Franciscan St Francis Health

🇺🇸

Indianapolis, Indiana, United States

Dartmouth Hitchcock Medical Center

🇺🇸

Lebanon, New Hampshire, United States

William Beaumont Hospital

🇺🇸

Royal Oak, Michigan, United States

Northwest Texas Healthcare System

🇺🇸

Amarillo, Texas, United States

Allegheny General Hospital

🇺🇸

Pittsburgh, Pennsylvania, United States

Upmc Presbyterian

🇺🇸

Pittsburgh, Pennsylvania, United States

Arkansas Heart Hospital

🇺🇸

Little Rock, Arkansas, United States

Chandler Regional Medical Center

🇺🇸

Chandler, Arizona, United States

Tampa General Hospital

🇺🇸

Tampa, Florida, United States

Holy Cross Hospital

🇺🇸

Fort Lauderdale, Florida, United States

Jewish Hospital

🇺🇸

Louisville, Kentucky, United States

Baptist Health Lexington

🇺🇸

Lexington, Kentucky, United States

Boone Hospital Center/ Missouri Cardiovascular Specialists, LLP

🇺🇸

Columbia, Missouri, United States

Carolinas Medical Center

🇺🇸

Charlotte, North Carolina, United States

WakeMed

🇺🇸

Raleigh, North Carolina, United States

Rex Hospital, Inc.

🇺🇸

Raleigh, North Carolina, United States

Holy Spirit Hospital

🇺🇸

Camp Hill, Pennsylvania, United States

Pinnacle Health Hospitals

🇺🇸

Harrisburg, Pennsylvania, United States

Winchester Medical Center

🇺🇸

Winchester, Virginia, United States

Providence Reg Med Ctr Everett

🇺🇸

Everett, Washington, United States

Fiona Stanley Hospital

🇦🇺

Murdoch, Western Australia, Australia

Montefiore Medical Center

🇺🇸

Bronx, New York, United States

Rhode Island Hospital

🇺🇸

Providence, Rhode Island, United States

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