A Phase 3 interventional study of Polymer-based Paclitaxel-Eluting TAXUS Express2-SR Stent and Coronary Artery Bypass Surgery in Coronary Artery Disease, sponsored by Boston Scientific Corporation. Status unknown at 106 sites in 18 countries. Open to participants aged 21 Years and older. Per ClinicalTrials.gov, last updated 2010-06-23.
Sponsored by Boston Scientific Corporation · Phase 3, Interventional, and Treatment
The SYNTAX trial is designed to determine the best treatment for patients with complex coronary disease (blocked or narrowed arteries in both the right and left sides of the heart) by randomizing patients to receive either percutaneous coronary intervention (PCI) with polymer-based paclitaxel-eluting TAXUS stents or to coronary artery bypass surgery (CABG).
Due to the introduction of drug-eluting stents (DESs) and to improvements in therapy for both percutaneous coronary intervention (PCI) and coronary artery bypass surgery (CABG) patients, PCI is challenging CABG as the gold standard for treatment of three vessel (3VD) and left main (LM) coronary disease.
SYNTAX is a novel, randomized trial with nested registries comparing PCI with paclitaxel-eluting TAXUS stents to CABG for 3VD and LM patients to evaluate the best treatment for these patients with complex coronary disease.
Patients at participating centers will be evaluated by both a cardiothoracic surgeon and by an interventional cardiologist.
Those patients who are determined to be eligible for treatment by both PCI and CABG will be randomized to receive either PCI with a polymer-based paclitaxel-eluting TAXUS stent or CABG.
Patients who are determined to be unsuitable for treatment by PCI will be treated by CABG and will be entered into a CABG registry to help define the patient population in which stenting continues to be an unacceptable treatment option.
Similarly, patients who are determined to be unsuitable for treatment by CABG will be treated by PCI, using any interventional techniques or devices with or without the use of DES, and entered into a PCI registry to help define the patients for whom CABG is considered inappropriate.
5,598 studies on the registry are indexed under Coronary Artery Disease; 957 are open to participants now.
This study's enrollment of 1,800 is above the median of 124 across 3,436 interventional studies indexed under Coronary Artery Disease.
Browse Coronary Artery Disease studies →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.
Exclusion Criteria:
Device: Polymer-based Paclitaxel-Eluting TAXUS Express2-SR Stent
Coronary Artery Bypass Graft
Procedure: Coronary Artery Bypass Surgery
Drug Eluting Stent
Also known as: Percutaneous coronary intervention, Paclitaxel eluting stent, 3 vessel disease, Left main stem
Coronary Artery Bypass Surgery
Also known as: Coronary artery disease, Coronary artery bypass graft, Left Main coronary artery
Primary Clinical Endpoint of 12-Month Binary MACCE.
Number of participants at primary clinical endpoint of 12-Month binary MACCE. MACCE is defined as: all cause death, cerebrovascular event (stroke), cocumented myocardial infarction, repeat revascularization (PCI and/or CABG).
Time frame: 12 months post enrollment
12-month Composite Safety Endpoint.
Number of participants at 12-month composite safety endpoint. Composite safety endpoint combines: all cause death, cerebrovascular event (stroke), and documented myocardial infarction.
Time frame: 12 months after enrollment
Repeat Revascularization (PCI and/or CABG).
Number of participants with repeat revascularization (PCI and/or CABG).
Time frame: 12 Months post enrollment
Overall MACCE at 1 Month Post-procedure and at 6 Months, 3 Years, and 5 Years Post-allocation.
Number of participants with Overall MACCE at 1 month post-procedure and at 6 months, 3 years, and 5 years post-allocation.
Time frame: 1 month after procedure and 6 months, 3 years, and 5 years post allocation
Individual Components of MACCE at 1 Month Post-procedure.
Number of participants with individual components of MACCE at 1 month post-procedure. The individual components of MACCE are: all cause death, stroke, documented myocardial infarction, repeat revascularization.
Time frame: 1 month after procedure
Individual Components of MACCE at 6 Months Post-allocation.
Number of participants with individual components of MACCE at 6 months post-allocation. The individual components of MACCE are: all cause death, stroke, documented myocardial infarction, repeat revascularization.
Time frame: 6 months post allocation
Individual Components of MACCE at 1 Year Post-allocation.
Number of participants with individual components of MACCE at 1 year post-allocation. The individual components of MACCE are: all cause death, stroke, documented myocardial infarction, repeat revascularization.
Time frame: 1 year post allocation
Freedom From MACCE and Its Components at 1 Year Post-allocation.
Number of participants with freedom from MACCE and its components at 1 year post-allocation. Freedom from MACCE is defined as no MACCE nor any of the individual components of MACCE (all cause death, stroke, documented myocardial infarction, repeat revascularization).
Time frame: 1 year post allocation
Freedom From MACCE and Its Components at 3 Years Post-allocation
Time frame: 3 years post allocation
Freedom From MACCE and Its Components at 5 Years Post-allocation
Time frame: 5 years post allocation
Quality of Life at 1 Month Post-procedure and at 6 Months, 1, 3 and 5 Years Post-allocation
Time frame: 1 month after procedure and 6 months, 1, 3 and 5 years post allocation
Cost and Cost-effectiveness at 1, 3 and 5 Years Post-allocation
Time frame: 1 year, 3 and 5 years post allocation
The Characteristics (Including Co-morbidity and Coronary Vascular Lesion Complexity Scoring Referred to as the SYNTAX Score) of the Following: PCI Versus CABG Randomized Cohort, PCI Registry Cohort (CABG Ineligible), CABG Registry Cohort (PCI Ineligible)
Time frame: 5 Years
| Milestone | CABG | PCI With DES |
|---|---|---|
| Started | 897 | 903 |
| Completed | 849 | 891 |
| Not completed | 48 | 12 |
| Withdrew: Withdrawal by subject | 40 | 7 |
| Withdrew: Lost to follow-up | 8 | 5 |
Number of participants at primary clinical endpoint of 12-Month binary MACCE. MACCE is defined as: all cause death, cerebrovascular event (stroke), cocumented myocardial infarction, repeat revascularization (PCI and/or CABG).
| participants | CABG | PCI With DES |
|---|---|---|
| Primary Clinical Endpoint of 12-Month Binary MACCE. | 105 | 159 |
Number of participants at 12-month composite safety endpoint. Composite safety endpoint combines: all cause death, cerebrovascular event (stroke), and documented myocardial infarction.
| participants | CABG | PCI With DES |
|---|---|---|
| 12-month Composite Safety Endpoint. | 65 | 68 |
Number of participants with Overall MACCE at 1 month post-procedure and at 6 months, 3 years, and 5 years post-allocation.
| participants | CABG | PCI With DES |
|---|---|---|
| MACCE 1 month post procedure | 45 | 54 |
| MACCE 6 months post procedure | 85 | 111 |
Number of participants with individual components of MACCE at 1 month post-procedure. The individual components of MACCE are: all cause death, stroke, documented myocardial infarction, repeat revascularization.
| participants | CABG | PCI With DES |
|---|---|---|
| All cause death | 10 | 20 |
| Stroke | 9 | 2 |
| Documented MI | 21 | 31 |
| Any repeat revascularization | 15 | 31 |
Number of participants with individual components of MACCE at 6 months post-allocation. The individual components of MACCE are: all cause death, stroke, documented myocardial infarction, repeat revascularization.
| Participants | CABG | PCI With DES |
|---|---|---|
| All cause death | 24 | 31 |
| Stroke | 13 | 2 |
| Documented MI | 27 | 40 |
| Any repeat revascularization | 35 | 78 |
Number of participants with individual components of MACCE at 1 year post-allocation. The individual components of MACCE are: all cause death, stroke, documented myocardial infarction, repeat revascularization.
| participants | CABG | PCI With DES |
|---|---|---|
| Death any cause | 30 | 39 |
| Stroke | 19 | 5 |
| Documented MI | 28 | 43 |
| Any repeat revascularization | 50 | 120 |
Number of participants with freedom from MACCE and its components at 1 year post-allocation. Freedom from MACCE is defined as no MACCE nor any of the individual components of MACCE (all cause death, stroke, documented myocardial infarction, repeat revascularization).
| participants | CABG | PCI With DES |
|---|---|---|
| Freedom from any MACCE | 744 | 732 |
| Freedom from any cause death | 819 | 852 |
| Freedom from stroke | 830 | 886 |
| Freedom from documented MI | 821 | 848 |
| Freedom from any repeat revascularization | 799 | 771 |
Results for this outcome have not been posted.
Number of participants with repeat revascularization (PCI and/or CABG).
| Participants | CABG | PCI With DES |
|---|---|---|
| Repeat Revascularization (PCI and/or CABG). | 50 | 120 |
Results for this outcome have not been posted.
Results for this outcome have not been posted.
Results for this outcome have not been posted.
Results for this outcome have not been posted.
Collected over 1 year. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| CABG | — | 391/897 (43.6%) | 509/897 (56.7%) |
| PCI With DES | — | 357/903 (39.5%) | 405/903 (44.9%) |
| Event | CABG | PCI With DES |
|---|---|---|
| Arrhythmia, other rare cardiac disordersCardiac disorders | 51/897 | 82/903 |
| Angina PectorisCardiac disorders | 30/897 | 74/903 |
| Angina UnstableCardiac disorders | 30/897 | 66/903 |
| Vascular disordersVascular disorders | 45/897 | 48/903 |
| Atrial FibrillationCardiac disorders | 45/897 | 10/903 |
| Infection and abcessInfections and infestations | 44/897 | 27/903 |
| Injury and procedural complicationsInjury, poisoning and procedural complications | 33/897 | 15/903 |
| Respiratory, thoracic and mediastinal disordersRespiratory, thoracic and mediastinal disorders | 31/897 | 20/903 |
| Wound infectionInfections and infestations | 30/897 | 1/903 |
| Vascular graft occlusionInjury, poisoning and procedural complications | 28/897 | 1/903 |
| Event | CABG | PCI With DES |
|---|---|---|
| All other Adverse EventsGeneral disorders | 509/897 | 405/903 |
| Atrial fibrillationCardiac disorders | 123/897 | 25/903 |
| AnaemiaBlood and lymphatic system disorders | 104/897 | 23/903 |
| Angina pectorisCardiac disorders | 26/897 | 61/903 |
| Wound infectionInfections and infestations | 56/897 | 2/903 |
| Pleural effusionRespiratory, thoracic and mediastinal disorders | 54/897 | 2/903 |
| Incision site complicationInjury, poisoning and procedural complications | 47/897 | 3/903 |
| Age, Categorical(Participants) | CABG | PCI With DES | Total |
|---|---|---|---|
| <=18 years | 0 | 0 | 0.0 |
| Between 18 and 65 years | 400 | 397 | 797.0 |
| >=65 years | 497 | 506 | 1003.0 |
| Age Continuous(years) | CABG | PCI With DES | Total |
|---|---|---|---|
| Mean | 64.96 ± 9.79 | 65.23 ± 9.66 | 65.09 ± 9.72 |
| Sex: Female, Male(Participants) | CABG | PCI With DES | Total |
|---|---|---|---|
| Female | 189 | 213 | 402 |
| Male | 708 | 690 | 1398 |
| Region of Enrollment(participants) | CABG | PCI With DES | Total |
|---|---|---|---|
| United States | 122 | 123 | 245.0 |
| Portugal | 7 | 6 | 13.0 |
| Finland | 12 | 12 | 24.0 |
| Spain | 26 | 27 | 53.0 |
| Austria | 24 | 28 | 52.0 |
| United Kingdom | 132 | 135 | 267.0 |
| Italy | 96 | 101 | 197.0 |
| France | 105 | 103 | 208.0 |
| Hungary | 39 | 44 | 83.0 |
| Czech Republic | 20 | 20 | 40.0 |
| Poland | 33 | 33 | 66.0 |
| Belgium | 47 | 44 | 91.0 |
| Denmark | 15 | 17 | 32.0 |
| Norway | 4 | 4 | 8.0 |
| Latvia | 20 | 20 | 40.0 |
| Netherlands | 74 | 74 | 148.0 |
| Germany | 93 | 86 | 179.0 |
| Sweden | 28 | 26 | 54.0 |
| Angina(participants) | CABG | PCI With DES | Total |
|---|---|---|---|
| Participants with Stable Angina at Baseline | 513 | 514 | 1027.0 |
| Participants with Unstable Angina at Baseline | 251 | 261 | 512.0 |
| Participants with Silent Ischemia at Baseline | 74 | 74 | 148.0 |
| Participants with No Angina at Baseline | 59 | 54 | 113.0 |
| Bifurcation lesion (per participant)(participants) | CABG | PCI With DES | Total |
|---|---|---|---|
| One or more Bifurcated Lesion(s) | 652 | 649 | 1301.0 |
| No Bifurcated Lesions | 245 | 254 | 499.0 |
| Blood pressure ≥130/85 mmHg(participants) | CABG | PCI With DES | Total |
|---|---|---|---|
| Blood Pressure >= 130/85 mmHG | 574 | 622 | 1196.0 |
| Blood Pressure <130/85 mmHG | 323 | 281 | 604.0 |
| Carotid artery disease(participants) | CABG | PCI With DES | Total |
|---|---|---|---|
| Diagnosed Carotid Artery Disease at Baseline | 75 | 73 | 148.0 |
| No Diagnosed Carotid Artery Disease at Baseline | 822 | 830 | 1652.0 |
19 further baseline measures are reported on the registry.
Showing the first 100 of 106 sites across 18 countries.
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