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Evidence supporting the use of percutaneous coronary intervention (PCI) for relief of angina symptoms is derived entirely from open-label studies, which are subject to the placebo effect. Also, a blinded clinical trial (ORBITA-1) failed to demonstrate an incremental benefit of PCI compared with placebo among patients receiving intensive antianginal medical therapy (NEJM JW Cardiol Nov 8 2017 and Lancet 2018; 391:31). As such, some have questioned whether PCI provides any meaningful benefit — an important issue given the cost and complication risks of these procedures.
To address this gap in knowledge, the partially industry-funded ORBITA-2 trial (NCT03742050) randomized 301 patients (mean age, 64 years; 21% women; 80% single-vessel disease) …