• Medicine · Nov 2022

    The status of TKI/acid-suppressant concomitant use in 44 hospitals in China: A cross-sectional descriptive study.

    • Fangting Chen, Wendong Yao, Fan Wu, Rui Xie, Jianping Wang, and Zheng Shi.
    • Yongkang Orthopaedic Hospital (Yongkang Sixth People's Hospital), Yongkang, China.
    • Medicine (Baltimore). 2022 Nov 18; 101 (46): e31770e31770.

    AbstractThe irrational use of tyrosine kinase inhibitors (TKIs) has attracted increasing attention, especially because of drug-drug interactions. The objective of this study was to analyze TKI prescriptions and evaluate the rationality of concomitant use of TKIs and acid-suppressants. TKI prescriptions from 2016 to 2018 were collected from hospitals in Beijing, Guangzhou, Hangzhou, and Zhengzhou for 40 d/yr. Focusing on the data in 2018, we analyzed the pharmacoeconomic indicators of TKIs and the number and proportion of different coprescriptions. The evaluation criteria for coprescriptions were based on clinical literature and package inserts. A total of 41,738 TKI prescriptions were assessed. The total dose and sales of imatinib were the highest, the medication days and defined daily doses of gefitinib were the highest, and the highest defined daily cost was sunitinib. Meanwhile, there were 17 TKIs with drug utilization indices of ≤ 1.0. The irrational combination rate of prescriptions of non-cancer-related departments was high in 3 cities, but not Hangzhou. The irrational combination rate of prescription of inpatient prescriptions was > 23% in the 4 cities. The combined use of TKIs and acid-suppressants is common in China and may have a clear or potential impact on the pharmacokinetics, pharmacodynamics, and adverse drug reactions of TKIs. Therefore, it is urgent to implement necessary interventions to stop such irrational use or if the combined use is necessary, to correct adverse consequences. The aims should be to achieve safe and effective use of TKIs and reduce unnecessary costs.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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