Bypass Surgery Versus Angioplasty Using Sirolimus-Eluting Stent in Patients With Left Main Coronary Artery Disease (PRECOMBAT)

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Seung-Jung Park, CardioVascular Research Foundation, Korea
ClinicalTrials.gov Identifier:
NCT00422968
First received: January 16, 2007
Last updated: April 29, 2014
Last verified: April 2014

January 16, 2007
April 29, 2014
March 2005
November 2009   (final data collection date for primary outcome measure)
Major cardiac and cerebrovascular event (MACCE): the composite of death, myocardial infarction, stroke, and ischemica-driven target vessel revascularization [ Time Frame: one-year after treatment ] [ Designated as safety issue: Yes ]
  •  Cerebrovascular accident
  • The primary objective is measured in terms of major cardiac and cerebrovascular event (MACCE)-free survival at one year follow-up.
  •  Death (all-cause mortality)
  •  Non-fatal myocardial infarction (Q wave and non-Q wave)
  •  Ischemia-driven target vessel revascularization either percutaneous or surgical treatment
Complete list of historical versions of study NCT00422968 on ClinicalTrials.gov Archive Site
  • All-cause mortality [ Time Frame: at 30 days, 6 months, 1 year, and yearly to 5 years ] [ Designated as safety issue: Yes ]
  • Cardiac death [ Time Frame: at 30 days, 6 months, 1 year, and yearly to 5 years ] [ Designated as safety issue: Yes ]
  • Myocardial infarction [ Time Frame: at 30 days, 6 months, 1 year, and yearly to 5 years ] [ Designated as safety issue: Yes ]
  • Cerebrovascular accident [ Time Frame: at 30 days, 6 months, 1 year, and yearly to 5 years ] [ Designated as safety issue: Yes ]
  • Target vessel revascularization (all and ischemia-driven) [ Time Frame: at 30 days, 6 months, 1 year, and yearly to 5 years ] [ Designated as safety issue: No ]
  • Target lesion revascularization (all and ischemia-driven) [ Time Frame: at 30 days, 6 months, 1 year, and yearly to 5 years ] [ Designated as safety issue: No ]
  • Stent thrombosis in the PCI group [ Time Frame: at 30 days, 6 months, 1 year, and yearly to 5 years ] [ Designated as safety issue: Yes ]
  • Binary restenosis in both in-stent and in-segment [ Time Frame: at 9 month angiographic follow-up ] [ Designated as safety issue: No ]
  • Graft patency and reocclusion rate [ Time Frame: at 9 months angiographic follow-up ] [ Designated as safety issue: No ]
  • Late luminal loss in both in-stent and in-segment [ Time Frame: at 9 month angiographic follow-up ] [ Designated as safety issue: No ]
  • The Composite of MACCE at 30 days, 6 months, and yearly to 5 years
  • All cause death at 30 days, 6 months, 1 year, and yearly to 5 years
  • Cardiac death at 30 days, 6 months, 1 year, and yearly to 5 years
  • Myocardial infarction at 30 days, 6 months, 1 year, and yearly to 5 years
  • Cerebrovascular accident at 30 days, 6 months, 1 year, and yearly to 5 years
  • Target vessel revascularization (all and ischemia-driven) at 30 days, 6 months, 1 year, and yearly to 5 years
  • Target lesion revascularization (all and ischemia-driven) at 30 days, 6 months, 1 year, and yearly to 5 years
  • Stent thrombosis in the PCI group at 30 days, 6 months, 1 year, and yearly to 5 years
  • Binary restenosis in both in-stent and in-segment at 9 month angiographic follow-up
  • Graft patency and reocclusion rate at 9 months angiographic follow-up
  • Late luminal loss in both in-stent and in-segment at 9 month angiographic follow-up
  • Angiographic pattern of restenosis at 9 month angiographic follow-up
  • Angina status at 30 days, 6 months, 1 year, and yearly to 5 years
  • Re-hospitalization with a cardiac cause
Not Provided
Not Provided
 
Bypass Surgery Versus Angioplasty Using Sirolimus-Eluting Stent in Patients With Left Main Coronary Artery Disease
PREmier of Randomized COMparison of Bypass Surgery Versus AngioplasTy Using Sirolimus-Eluting Stent in Patients With Left Main Coronary Artery Disease

The primary objective of the PRE-COMBAT trial is:

To establish the safety and effectiveness of coronary stenting with the sirolimus-eluting balloon expandable stent (Cordis Johnson & Johnson, Warren, New Jersey) compared with bypass surgery for the treatment of an unprotected LMCA stenosis. The alternative hypothesis is that the experimental strategy (coronary stenting with the sirolimus-eluting stents) is not inferior to the standard strategy (bypass surgery).

Despite bypass surgery has been considered as the standard strategy for the treatment of unprotected left main coronary artery (LMCA) lesions, several studies have demonstrated that percutaneous coronary intervention (PCI) of the unprotected LMCA is feasible and appears to be an alternative strategy in selected patients. However, the safety and efficacy of PCI in patients with unprotected LMCA stenosis are still a matter of debate.

Previous studies have demonstrated the safety and feasibility of unprotected LMCA intervention using bare metal stents (BMS). There was a favorable initial outcome after LMCA intervention using BMS in low-risk patients. However, in-stent restenosis after BMS implantation has emerged as the interference to widely perform PCI for unprotected LMCA lesions and the most important reason for selection of bypass surgery as the first choice for treating LMCA stenosis. In-stent restenosis in these patients not only influences long-term survival, but also make repeat intervention more complex. Despite endeavors to decrease in-stent restenosis after LMCA intervention using BMS, such as aggressive debulking atherectomy, the restenosis rate still remains at 20-30%. The sirolimus-eluting stent (SES) (Cypher, Cordis, Johnson & Johnson Corp, Miami, Florida) markedly decreases in-stent restenosis in elective patients with relatively simple coronary lesions. In real-world practice using SES, patients undergoing SES implantation were treated with a less restrictive interventional approach. However, the results are very promising similar to the randomized controlled trials. These findings warrant new studies to compare the efficacy of SES for more complex lesion subsets including LMCA disease with coronary artery bypass graft (CABG).

Interventional
Phase 3
Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Coronary Artery Disease
  • Device: Percutaneous coronary intervention
    Using silorimus eluting stent
  • Procedure: coronary artery bypass graft
    coronary artery bypass graft
  • Active Comparator: coronary artery bypass graft
    coronary artery bypass graft
    Intervention: Procedure: coronary artery bypass graft
  • Experimental: percutaneous coronary intervention
    Using silorimus eluting stent
    Intervention: Device: Percutaneous coronary intervention
Park SJ, Kim YH, Park DW, Yun SC, Ahn JM, Song HG, Lee JY, Kim WJ, Kang SJ, Lee SW, Lee CW, Park SW, Chung CH, Lee JW, Lim DS, Rha SW, Lee SG, Gwon HC, Kim HS, Chae IH, Jang Y, Jeong MH, Tahk SJ, Seung KB. Randomized trial of stents versus bypass surgery for left main coronary artery disease. N Engl J Med. 2011 May 5;364(18):1718-27. doi: 10.1056/NEJMoa1100452. Epub 2011 Apr 4.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
1454
December 2013
November 2009   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • The patient must be at least 18 years of age.
  • Significant de novo left main stenosis (>50% by visual estimation) with or without any additional target lesions (>70% by visual estimation)
  • Left main lesion and lesions outside LMCA (if present) potentially equally treatable with coronary stenting and bypass surgery
  • Patients with stable (CCS class 1 to 4) or acute coronary syndromes (unstable angina pectoris Braunwald class IB, IC, IIB, IIC, IIIB, IIIC or NSTEMI) or patients with atypical chest pain or without symptoms but having documented myocardial ischemia
  • The patient or guardian agrees to the study protocol and the schedule of clinical and angiographic follow-up, and provides informed, written consent, as approved by the appropriate Institutional Review Board/Ethical Committee of the respective clinical site.

Exclusion Criteria:

  • The patient has a known hypersensitivity or contraindication to any of the following medications:

    • Heparin
    • Aspirin
    • Both Clopidogrel and TIclopidine
    • Sirolimus, paclitaxel, ABT 578
    • Stainless steel and/or
    • Contrast media (patients with documented sensitivity to contrast which can be effectively pre-medicated with steroids and diphenhydramine [e.g. rash] may be enrolled. Patients with true anaphylaxis to prior contrast media, however, should not be enrolled).
  • Systemic (intravenous) Sirolimus, paclitaxel or ABT-578 use within 12 months.
  • Any previous PCI within 1 year
  • Previous bypass surgery
  • Any previous PCI of a LMCA or ostial left circumflex artery or ostial left anterior descending artery lesion within 1 year
  • Intention to treat more than one totally occluded major epicardial vessel
  • Acute MI patients within 1 week
  • Patients with EF<30%.
  • Patients with cardiogenic shock
  • Any disabled stroke with neurological deficit or any cerebrovascular accident within 6 months
  • Creatinine level > 2.0mg/dL or dependence on dialysis.
  • Severe hepatic dysfunction (AST and ALT > 3 times upper normal reference values).
  • Gastrointestinal or genitourinary bleeding within the prior 3 months, or major surgery within 2 months.
  • History of bleeding diathesis or known coagulopathy (including heparin-induced thrombocytopenia), or will refuse blood transfusions.
  • Current known current platelet count <100,000 cells/mm3 or Hgb <10 g/dL.
  • An elective surgical procedure is planned that would necessitate interruption of thienopyridines during the first 1 year post enrollment.
  • Non-cardiac co-morbid conditions are present with life expectancy <1 year or that may result in protocol non-compliance (per site investigator's medical judgment).
  • Patients who are actively participating in another drug or device investigational study, which have not completed the primary endpoint follow-up period.
  • Subject unable or unwilling to follow-up with visits required by protocol
  • Female of childbearing potential, unless a recent pregnancy test is negative, who possibly plan to become pregnant any time after enrollment into this study
Both
18 Years and older
No
Contact information is only displayed when the study is recruiting subjects
Korea, Republic of
 
NCT00422968
2005-0012
Yes
Seung-Jung Park, CardioVascular Research Foundation, Korea
Seung-Jung Park
Not Provided
Principal Investigator: Seung-Jung Park, MD, PhD Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine
CardioVascular Research Foundation, Korea
April 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP