The primary objective of this study is to compare the performance of SUPRAFLEX to that of XIENCE in an all-comers patient population with symptomatic ischemic heart disease. The patients will be followed through 3 years for major clinical events.

This is a prospective, randomized, 1:1 balanced, controlled, single-blind, multi-center study comparing clinical outcomes at 12 months between SUPRAFLEX and XIENCE in a "Real world, all comers" patient population (patients with symptomatic coronary artery disease including patients with chronic stable angina, silent ischemia, and acute coronary syndromes, who qualify for percutaneous coronary interventions). The objective is to compare the SUPRAFLEX SES with the XIENCE EES with respect to target lesion failure (TLF) at 12 months in a non-inferiority trial in a "real world" patient population.

All patients will be (at minimum) contacted at 30 days, 6 months, and 12 months post procedure to assess clinical status and adverse events. The 30 day and 12 month will be a clinic visit. All patients will have annual contact through 3 years follow-up to assess clinical status and adverse events.

Inclusion Criteria:

All comers" patients:

• Male or female patients 18 years or older;
• Presence of one or more coronary artery stenoses of 50% or more in a native coronary artery or in a saphenous venous or arterial bypass conduit suitable for coronary stent implantation.
• The vessel should have a reference vessel diameter ranging from ≥2.25 mm to ≤4.5 mm (no limitation on the number of treated lesions, vessels, or lesion length); All lesions of the patient must comply with the angiographic inclusion criteria.
• The patient (or legal guardian) understands the trial requirements and the treatment procedures and provides written informed consent before any trial-specific tests or procedures are performed. Patient is willing to comply with all protocol-required evaluations.

Exclusion Criteria:

• Known pregnancy or breastfeeding at time of randomization;
• Known contraindication or hypersensitivity to sirolimus, everolimus, cobalt-chromium, or to medications such as aspirin, heparin, bivalirudin, and all of the following four medications: clopidogrel bisulfate, ticlopidine, prasugrel, ticagrelor;
• Any PCI treatment within 6 months (<6 months) prior to the index procedure.
• Concurrent medical condition with a life expectancy of less than 12 months.
• The patient is unwilling/ not able to return for outpatient clinic at 12 months follow-up.
• Currently participating in another trial and not yet at its primary endpoint.

The research data will be entered on separate forms and stored under a code number, according to prevailing legal requirements. No names or other personal data will be stored. Only the study doctor will hold the information to link the code to the patients. The encoded data will be processed, analysed and reported by the research employees of this study, who have an obligation of secrecy.

Representatives of the sponsor or members of the Ethics Committee (EC) and regulatory authorities within Europe can have access to the medical files in order to inspect the correctness of the research data. Data may be provided to representatives and affiliates of the industries supporting the study: Sahajanand Medical Technologies.It is possible that the results of this study are presented or published in medical journals; this will always be without mention of the identity of the patients.