Journal of cardiology · 2022
Treatment strategy of dabigatran etexilate following the availability of idarucizumab in Japanese patients with non-valvular atrial fibrillation: J-Dabigatran Surveillance 2.
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Yamashita Takeshi, Uchiyama Shinichiro, Atarashi Hirotsugu, Okumura Ken, Koretsune Yukihiro, Yasaka Masahiro, Wakayama Junichi, Fukaya Taku, Inoue Hiroshi, J-Dabigatran Surveillance Investigators
Аннотация
BACKGROUND: Idarucizumab, a dabigatran-specific reversal agent, was launched in Japan in 2016. The J-Dabigatran Surveillance 2 study was designed to assess the characteristics and outcomes of dabigatran-treated patients after the launch of idarucizumab.
METHODS: Patient characteristics and outcomes, including thromboembolic and bleeding events, of dabigatran-naïve patients with non-valvular atrial fibrillation (NVAF) who received dabigatran etexilate [110 mg or 150 mg twice-daily (b.i.d.)] for the prevention of ischemic stroke and systemic embolism were investigated and presented descriptively. Absolute standardized differences (ASD) in baseline characteristics compared with the first J-Dabigatran Surveillance (J-Dabi1; 2011-2013) study were included.
RESULTS: In total, 5660 patients were enrolled and 5436 were analyzed in this study; 3516 and 1898 received 110 mg b.i.d. and 150 mg b.i.d. dabigatran, respectively; 22 received other doses. The overall duration of follow-up (mean ± standard deviation) was 287 ± 179 days. Baseline characteristics, including stroke/bleeding-risk scores, were typical of this patient population. Overall, paroxysmal, persistent, permanent, and symptomatic atrial fibrillation were observed for 53.2%, 27.1%, 13.7%, and 53.9% of patients, respectively (J-Dabi1 ASD: 0.2, 0.0, 0.3, and 0.2, respectively). Catheter ablation was selected in 27.9% of patients (J-Dabi1 ASD: 0.6). Rates of clinical outcomes were low in the study (mostly <2%/year). The incidence rate of major bleeding was 1.1%/year (n = 46) and stroke/transient ischemic attack/systemic embolism was 1.7%/year (n = 71). Twelve (0.2%) patients received idarucizumab, commonly for serious bleeding events, and most recovered.
CONCLUSIONS: Dabigatran continues to be safe and well tolerated in patients with NVAF for stroke and systemic embolism prevention and continues to be prescribed appropriately. Treatment outcomes have not changed since the availability of idarucizumab. Since the J-Dabi1 study, treatment guidelines for anticoagulation use in NVAF have been updated based on emerging clinical evidence, accounting for differences in patient characteristics, and making dabigatran a preference for distinct patient populations.
METHODS: Patient characteristics and outcomes, including thromboembolic and bleeding events, of dabigatran-naïve patients with non-valvular atrial fibrillation (NVAF) who received dabigatran etexilate [110 mg or 150 mg twice-daily (b.i.d.)] for the prevention of ischemic stroke and systemic embolism were investigated and presented descriptively. Absolute standardized differences (ASD) in baseline characteristics compared with the first J-Dabigatran Surveillance (J-Dabi1; 2011-2013) study were included.
RESULTS: In total, 5660 patients were enrolled and 5436 were analyzed in this study; 3516 and 1898 received 110 mg b.i.d. and 150 mg b.i.d. dabigatran, respectively; 22 received other doses. The overall duration of follow-up (mean ± standard deviation) was 287 ± 179 days. Baseline characteristics, including stroke/bleeding-risk scores, were typical of this patient population. Overall, paroxysmal, persistent, permanent, and symptomatic atrial fibrillation were observed for 53.2%, 27.1%, 13.7%, and 53.9% of patients, respectively (J-Dabi1 ASD: 0.2, 0.0, 0.3, and 0.2, respectively). Catheter ablation was selected in 27.9% of patients (J-Dabi1 ASD: 0.6). Rates of clinical outcomes were low in the study (mostly <2%/year). The incidence rate of major bleeding was 1.1%/year (n = 46) and stroke/transient ischemic attack/systemic embolism was 1.7%/year (n = 71). Twelve (0.2%) patients received idarucizumab, commonly for serious bleeding events, and most recovered.
CONCLUSIONS: Dabigatran continues to be safe and well tolerated in patients with NVAF for stroke and systemic embolism prevention and continues to be prescribed appropriately. Treatment outcomes have not changed since the availability of idarucizumab. Since the J-Dabi1 study, treatment guidelines for anticoagulation use in NVAF have been updated based on emerging clinical evidence, accounting for differences in patient characteristics, and making dabigatran a preference for distinct patient populations.