Percutaneous coronary intervention (PCI) with drug-eluting stent (DES) implantation has become the dominant treatment strategy for patients with acute and chronic coronary artery disease (CAD) requiring revascularization. Nonetheless, PCI with stent implantation has some limitations and especially patients with severely calcified coronary lesions (approximately 10-20% of all patients with CAD) have an elevated risk for adverse outcomes, including target lesion failure (TLF) and stent thrombosis (ST). Several dedicated PCI devices have been developed for treatment of severely calcified lesions. Whereas especially two of them have shown promising results in smaller, prospective studies. First, the super high-pressure NC PCI balloon (OPN™ NC, SIS Medical AG, Frauenfeld, Switzerland) has been shown to represent an effective and safe device for lesion preparation. Second, the lately introduced Shockwave intravascular lithotripsy (IVL)™ balloon catheter (Shockwave Medical, Santa Clara, CA, USA) appears to be a safe and efficient alternative device for treatment of calcified coronary lesions. However, it remains unknown, if the OPN™ NC balloon is non-inferior to to IVL regarding lesion preparation and completeness of stent expansion in severely calcified lesions.
To evaluate final stent expansion following a strategy of lesion preparation with either the Shockwave C2 IVL™ Catheter (Shockwave Medical Inc. Santa Clara, CA, United States) or a super high-Pressure NC PTCA Balloon (OPN™ NC; SIS Medical Distribution AG, Frauenfeld, Switzerland) in patients with heavily calcified coronary lesions undergoing coronary stent implantation. To assess the safety of a strategy of using super high-pressure NC balloons compared to shockwave IVL™ for treatment of heavily calcified lesions, which are treated with a contemporary drug eluting stent. Patients presenting with chronic or acute coronary artery disease and requiring PCI to a very calcified coronary artery lesion will either be randomized to preparation of that corresponding lesion using the control device (Shockwave™ IVL balloon catheter) or the study device (the super high-pressure NC PCI Balloon (OPN™ NC)). The treatment of the calcified coronary lesion will be guided by use of intravascular imaging (optical coherence tomography, OCT). Enrolled patients will undergo follow-up at 30 days, 1 year and 2 years
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
280
In order to permit advancement of the studied medical devices - OPN™ NCB or Shockwave™ IVL balloon catheter - initial lesion preparation using small SCBs or NCBs (≤2mm) or rotablation (Boston Scientific, Marlborough, MA, United States) is allowed, but will be documented. This may be required in selected cases with very calcified and tight lesions. As per protocol, lesion preparation will be performed using either the super-high pressure PCI balloon OPN™ NCB or the Shockwave™ IVL balloon catheter according to random treatment assignment after matching the angiographic and/or OCT inclusion criteria. Following successful lesion preparation all patients will be treated with a latest generation durable polymer everolimus-eluting stent (Xience™ Sierra or Skypoint, Abbott Vascular Inc., Santa Clara, CA, United States) to allow comparison of stent expansion.
In order to permit advancement of the studied medical devices - OPN™ NCB or Shockwave™ IVL balloon catheter - initial lesion preparation using small SCBs or NCBs (≤2mm) or rotablation (Boston Scientific, Marlborough, MA, United States) is allowed, but will be documented. This may be required in selected cases with very calcified and tight lesions. As per protocol, lesion preparation will be performed using either the super-high pressure PCI balloon OPN™ NCB or the Shockwave™ IVL balloon catheter according to random treatment assignment after matching the angiographic and/or OCT inclusion criteria. Following successful lesion preparation all patients will be treated with a latest generation durable polymer everolimus-eluting stent (Xience™ Sierra or Skypoint, Abbott Vascular Inc., Santa Clara, CA, United States) to allow comparison of stent expansion.
Luzerner Heart Centre
Lucerne, Switzerland
RECRUITINGFinal stent expansion (in percentage, %) assessed by OCT
Time frame: At index Procedure
Acceptable stent expansion (>80%) assessed by OCT
Time frame: At index Procedure
Optimal stent expansion (>90%) assessed by OCT
Time frame: At index Procedure
Procedural success
defined as the achievement of angiographic success (residual stenosis of \<30%, no flow-limiting dissection and/or no no-reflow) without any major adverse cardiac events (MACE), which is defined as cardiac death, target vessel related myocardial infarction, TIA/ stroke and repeat revascularization (PCI or CABG) up to 30 days
Time frame: At index Procedure
Strategy success
defined as procedural success using the assigned study device and stent, without requirement for lesion preparation with further devices (i.e. cross-over to the non-assigned study devices or cutting/ scoring balloons).
Time frame: At index Procedure
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