FRAIL-AF
Safety of Switching From a Vitamin K Antagonist to a Non-Vitamin K Antagonist Oral Anticoagulant in Frail Older Patients With Atrial Fibrillation
Doente / População Intervenção / Exposição Comparação Desfecho
In 1,330 frail elderly patients with atrial fibrillation stable on a vitamin K antagonist, switching to a DOAC increased major or clinically relevant bleeding compared with continuing the vitamin K antagonist.
N
1330
Desenho
Open-label superiority RCT with blinded adjudication, stopped early
Desfecho
Composite of major or clinically relevant non-major bleeding
Relevância
2
Resultado15.3% vs 9.4% (HR 1.69, 95% CI 1.23-2.32); switching to a DOAC caused more bleeding than continuing a VKA, without offsetting thromboembolism reduction.
Joosten LPT, et al. Circulation. 2024;149(4):279-289. 10.1161/CIRCULATIONAHA.123.066485
Discussão e crítica
Applies to frail patients already stable on a VKA and does not argue against starting DOACs de novo. Challenged routine VKA-to-DOAC switching in frail elderly AF patients.