NCT01260558

Test of Long-Term Safety and Efficacy of Sirolimus-Permanent-Polymer Eluting Stent (Cypher)- and Sirolimus-Polymer-free Eluting Stents (PPS/PFS) Assessed by Optical Coherence Tomography

Pilop Trial of OCT-determined Coverage of Permanent or Polymer-free Sirolimus Eluting Stent at Long Term

• Status: Unknown
• Phase: Phase 4
• Study type: Interventional
• Enrollment: 20 (estimated)
• Sponsor: Deutsches Herzzentrum Muenchen · Academic / Other
• Sex: All
• Age: 18 Years
• Healthy volunteers: Not accepted

Summary

The objective of this pilot study is to compare the PFS-eluting stent (ISAR Rapa G1) with the PPS-eluting stent (Cypher®) regarding uncovered stent strut segments at 5 years.

Detailed description

The mid-term efficacy of drug-eluting stents has been well-established, but there is an ongoing debate on the potential of an increased incidence of late stent thrombosis, particularly after discontinuation of thienopyridine therapy, as well as of delayed onset of restenosis or catch-up phenomenon with permanent polymer-based DES. The extent of strut coverage with reduction of exposed thrombogenic material has been shown to be associated with the inflammatory reaction grade and with the incidence of stent thrombosis. The optical coherence tomography (OCT) is an intravascular imaging modality based on light. The principle is similar to intravascular ultrasound, but due to the much shorter wave length of light, it offers a much better resolution up to 10µm, enabling the exact determination of strut coverage, neointimal thickness, vessel size, presence of dissections, and even the presence of inflammation. Patients who received a polymer-free or a permanent-polymer sirolimus-eluting stent about 5 years ago without in-segment intervention since, will be evaluated by OCT regarding the healing pattern and the late lumen loss of the stent.

Conditions

• Coronary Heart Disease

Interventions

Type	Name	Description
DEVICE	Sirolimus-Permanent-Polymer Eluting Stent	due randomization sirolimus-permanent-polymer eluting stent was implanted
DEVICE	Sirolimus-Polymer-free Eluting Stent	due randomization sirolimus-polymer-free eluting stent was implanted

Timeline

• Start date: 2010-12-01
• Primary completion: 2012-12-01
• Completion: 2012-12-01
• First posted: 2010-12-15
• Last updated: 2012-05-08

Locations

2 sites across 1 country: Germany