期刊
KOREAN JOURNAL OF INTERNAL MEDICINE
卷 36, 期 6, 页码 1450-1458出版社
KOREAN ASSOC INTERNAL MEDICINE
DOI: 10.3904/kjim.2021.158
关键词
Chronic myeloid leukemia; Tyrosine kinase inhibitor; Medication possession ratio; Adherence
资金
- Korean Society of Hematology [CMLWP2018-02]
This study showed that male patients, those under 70 years old, with higher income, and remaining on frontline TKI treatment demonstrated better adherence to TKI therapy. Patients with moderate and low adherence had poorer overall survival outcomes.
Background/Aims: Adherence to tyrosine kinase inhibitors (TKIs) has become a critical aspect of care in chronic myeloid leukemia (CML). We aimed to examine the association of TKI adherence with overall survival (OS) outcomes in Korean patients diagnosed with CML and treated with TKIs using data from the National Health Information Database. Methods: This study included 2,870 CML patients diagnosed between 2005 and 2013. Drug adherence was evaluated according to the medication possession ratio (MPR) and classified as high adherence (i.e., MPR >= 0.95 [upper 50%]), moderate adherence (i.e., MPR >= 0.68 and < 0.95 [middle 25%]), and low adherence (i.e., MPR < 0.68 [lower 25%]). Results: The median MPR was 0.95 (range, 0 to 4.67). Male sex (p = 0.003), age < 70 years (p < 0.001), high income (>= 30%, p < 0.001), and maintaining frontline TKI (< 0.001) were associated with better adherence. Adherence to dasatinib was the lowest (vs. imatinib or nilotinib, p < 0.001). Compared with high MPR patients, those with moderate MPR (hazard ratio [HR], 4.90; 95% confidence interval [CI], 3.87 to 6.19; p < 0.001) and low MPR (HR, 11.6; 95% CI, 9.35 to 14.42; p < 0.001) had poorer OS. Conclusions: Adherence to TKI treatment is an important factor predicting survival outcomes in Korean CML patients. Male sex, age < 70 years, high income, and maintaining frontline TKI are associated with high adherence to TKI. Thus, those without these characteristics should be closely monitored for treatment adherence.
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