Try our beta test site
IMPORTANT: Listing of a study on this site does not reflect endorsement by the National Institutes of Health. Talk with a trusted healthcare professional before volunteering for a study. Read more...

Coronary Bifurcation Stenting (COBIS) Registry in South Korea (COBIS)

This study has been completed.
Information provided by (Responsible Party):
Hyeon-Cheol Gwon, Samsung Medical Center Identifier:
First received: February 25, 2009
Last updated: July 15, 2012
Last verified: July 2012

The COBIS registry is multi-center, real-world registry of drug-eluting stenting in coronary bifurcation lesions in South Korea.

The aim of the study was to find out the current status of bifurcation drug-eluting stenting and determine the prognostic factors for long-term outcome in South Korea.

Coronary Bifurcation Lesion

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Retrospective
Official Title: Coronary Bifurcation Stenting (COBIS) Registry in South Korea

Further study details as provided by Hyeon-Cheol Gwon, Samsung Medical Center:

Primary Outcome Measures:
  • Incidence of the composite outcome of all-cause death, MI, or any PCI/CABG [ Time Frame: 3 years ]

Secondary Outcome Measures:
  • Incidence of stent thrombosis, and periprocedural MI [ Time Frame: 3 years ]

Enrollment: 1919
Study Start Date: January 2004
Study Completion Date: December 2008
Primary Completion Date: December 2008 (Final data collection date for primary outcome measure)
Coronary bifurcation lesion


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients with coronary bifurcation lesion treated with drug-eluting stents

Inclusion Criteria:

  • Age >= 18 years
  • Any type of de novo bifurcation lesion with a parent vessel >= 2.5 mm and side branch>= 2.0 mm by visual estimation
  • Treated with drug-eluting stent

Exclusion Criteria:

  • Cardiogenic Shock
  • ST elevation MI within 48hours
  • Expected survival less than 1 year
  • Left main bifurcation
  • Allergy to the antiplatelets
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00851526

Korea, Republic of
Samsung Medical Center
Seoul, Korea, Republic of, 135-710
Sponsors and Collaborators
Samsung Medical Center
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):

Responsible Party: Hyeon-Cheol Gwon, Professor, Samsung Medical Center Identifier: NCT00851526     History of Changes
Other Study ID Numbers: 2007-04-042
Study First Received: February 25, 2009
Last Updated: July 15, 2012

Keywords provided by Hyeon-Cheol Gwon, Samsung Medical Center:
Coronary bifurcation lesion
Drug-eluting stent processed this record on May 25, 2017