Interventional Strategy for Non-culprit Lesions With Major Vulnerability Criteria at OCT in Patients With ACS

Condition(s) studied

Investigational drug(s) / intervention(s)

Optical coherence tomography: OCT images will be acquired by means of the FD C7 XR system or the OPTIS system (both St. Jude Medical, St. Paul, MN, USA) with a non-occlusive technique.(33) The acquired OCT coronary images will be analyzed on-line using a proprietary OCT console (St Jude Medical, Inc., USA). Definitions and cut-offs for OCT vulnerability parameters derived from available consensus documents and from main IVUS/OCT studies.

iFR/FFR/RFR: The iFR and FFR measurements will be obtained using a coronary-pressure guidewire (Pressure Wire / Certus or Aeris for FFR assessment and PressureWire™ X Guidewire/QUANTIEM™ for the RFR assessment by Abbott Vascular, Abbott Park, Illinois, U.S.A; Comet by Boston Scientific, Marlborough, MA, USA), OptoWire by Opsens, Quebec, Canada, or Verrata by Philips, San Diego, CA, USA.).

Study summary

The INTERCLIMA (Interventional Strategy for Non-culprit Lesions With Major Vulnerability Criteria Identified by Optical Coherence Tomography in Patients With Acute Coronary Syndrome) is a multi-center, prospective, randomized trial of optical coherence tomography (OCT)-based versus physiology-based (i.e. fractional flow reserve\[FFR\]/instantaneous Wave-Free Ratio\[iFR\]/resting full-cycle ratio\[RFR\]) treatment of intermediate (40-70% diameter stenosis), non-culprit coronary lesions in acute coronary syndrome (ACS) patients undergoing coronary angiography. About 1420 patients with ACS will be randomized into the study at approximately 40 sites worldwide.

Eligibility

Primary outcome measure(s)

• Number of patients with cardiac death or non-fatal spontaneous target-vessel myocardial infarction — 3 years
  Composite outcome. Cardiac death will be defined as any death due to heart disease, including heart failure, myocardial infarction, arrhythmia, and sudden unexpected death. Any spontaneous myocardial infarction will be attributed to the randomized intermediate lesion if not clearly attributable to the non-target vessels.

Trial sites (34)

Other trials for the same condition