Skip to Main Content

Carotid Artery Stenting (CAS) Investigational Studies

The National Coverage Determination (NCD) for Percutaneous Transluminal Angioplasty (PTA) covers carotid artery stenting (CAS) procedures under certain circumstances including through study participation.  Listed below are the investigational studies covered under this NCD.

Registry Approvals


CREST-2 Registry (C2R)
Clinicaltrials.gov number:  NCT02240862
http://clinicaltrials.gov/ct2/show/NCT02240862?term=C2R&rank=1
CMS Approval Date:  09/17/2014

Clinical Study Approvals

Study Title: SVS VQI TransCarotid Revascularization Surveillance Project (VQI-TCAR)
Sponsor: Society for Vascular Surgery
Clinicaltrials.gov number: NCT02850588
CMS Approval Date: 09/01/2016

Study Title: ROADSTER 2 Registry
Sponsor:  Silk Road Medical
Clinicaltrials.gov number:  NCT02536378
Premarket Approval (PMA) number:  P140026
CMS Approval Date:  08/03/2015

Study Title:  Carotid Revascularization for Primary Prevention of Stroke (CREST-2)
Sponsor:  National Institute of Neurological Disorders and Stroke (NINDS)
Clinicaltrials.gov number:  NCT02089217
Investigational Device Exemption (IDE) number:  G130221
CMS Approval Date:  09/17/2014