2 The technology

2.1

A build-up of fatty substances in the coronary arteries may reduce blood supply to the heart, causing coronary artery disease. To restore blood flow, a drug-eluting stent can be inserted into a coronary artery during percutaneous coronary intervention (PCI).

2.2

Drug-eluting stents are made from metal and coated with an antiproliferative drug. The drugs vary between the stents. In some stents, the drug is applied on a durable or absorbable polymer, whereas others are polymer free. Each drug-eluting stent has an instructions for use document that includes the indications for which the device can be used. The indications for use vary and may specify subpopulations or lesion types. They often specify the size of vessels the stent can be used for. Some stents can be purchased for use in specific cases because they are indicated for a particular subpopulation or lesion type, or because they have certain design features.

2.3

This assessment included 29 drug-eluting stents (table 1) available through the NHS Supply Chain. Each stent had valid CE certification as a class 3 implantable device.

Table 1 Drug-eluting stents for treating coronary artery disease
Manufacturer Technology Scaffold material Polymer type Drug

Abbott Medical

XIENCE PRO 48

Cobalt chromium

Durable

Everolimus

Abbott Medical

XIENCE PRO S

Cobalt chromium

Durable

Everolimus

Abbott Medical

Skypoint

Cobalt chromium

Durable

Everolimus

Abbott Medical

XIENCE Skypoint 48

Cobalt chromium

Durable

Everolimus

Abbott Medical

XIENCE Skypoint LV

Cobalt chromium

Durable

Everolimus

B. Braun Medical

Coroflex ISAR NEO

Cobalt chromium

Polymer free

Sirolimus

Biosensors International

BioFreedom

Stainless steel

Polymer free

Biolimus A9

Biosensors International

BioMatrix Alpha

Cobalt chromium

Biodegradable

Biolimus A9

Biosensors International

BioFreedom Ultra

Cobalt chromium

Polymer free

Biolimus A9

Biotronik

Orsiro Mission

Cobalt chromium

Biodegradable

Sirolimus

Biotronik

Synsiro Pro

Cobalt chromium

Biodegradable

Sirolimus

Boston Scientific

Promus ELITE

Platinum chromium

Durable

Everolimus

Boston Scientific

Synergy MEGATRON

Platinum chromium

Biodegradable

Everolimus

Boston Scientific

Synergy XD

Platinum chromium

Biodegradable

Everolimus

Cardionovum

XLIMUS

Cobalt chromium

Biodegradable

Sirolimus

IHT

ihtDEStiny BD

Cobalt chromium

Biodegradable

Sirolimus

iVascular

Angiolite

Cobalt chromium

Durable

Sirolimus

Medtronic

Onyx Frontier

Cobalt chromium, platinum-iridium core

Durable

Zotarolimus

Meril

BioMime

Cobalt chromium

Biodegradable

Sirolimus

Meril

BioMime Branch

Cobalt chromium

Biodegradable

Sirolimus

Meril

BioMime Morph

Cobalt chromium

Biodegradable

Sirolimus

Meril

EverMine 50

Cobalt chromium

Biodegradable

Everolimus

Microport

Firehawk

Cobalt chromium

Biodegradable

Sirolimus

Microport

Firehawk Liberty

Cobalt chromium

Biodegradable

Sirolimus

QualiMed

MAGMA

Stainless steel

Biodegradable

Sirolimus

Sahajanand Medical Technologies

Supraflex Cruz

Cobalt chromium

Biodegradable

Sirolimus

Sahajanand Medical Technologies

Supraflex Cruz Nevo

Cobalt chromium

Biodegradable

Sirolimus

Terumo

Ultimaster Nagomi

Cobalt chromium

Biodegradable

Sirolimus

Terumo

Ultimaster Tansei

Cobalt chromium

Biodegradable

Sirolimus