For patients with mild stroke or a TIA, early dual antiplatelet therapy (DAPT) with aspirin plus a P2Y12 inhibitor (e.g., clopidogrel) for a short period (4–12 weeks) is more effective than monotherapy at reducing the risk of early stroke recurrence without a significant increase in major bleeding risk [622, 623]. This evidence concerns the gene P2RY12 and transient ischemic attack.