A 63-year-old man presents with non-ST-elevation myocardial infarction and undergoes successful percutaneous coronary intervention with a drug-eluting stent to the proximal left anterior descending artery. He is discharged on aspirin 81 mg daily and ticagrelor 90 mg twice daily. He has no excessive bleeding risk. According to Canadian antiplatelet therapy guidelines, what is the recommended duration of dual antiplatelet therapy (DAPT) in this patient?