Rationale and design of the DEAR-OLD trial: Randomized evaluation of routinely Deferred versus EARly invasive strategy in elderly patients of 75 years or OLDer with non-ST-elevation myocardial infarction

The DEAR-OLD trial is a prospective, nationwide, multicenter, noninferiority-designed, open-label randomized clinical trial evaluating efficacy and safety of routinely deferred invasive strategy compared with early invasive strategy in Chinese elderly patients with NSTEMI.