<b>Survey of Drug Prescription Patterns Among Patients with Nontuberculous Mycobacterial Disease Using the Database of Health Insurance Claims </b>

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  • IWAO Tomohide
    Graduate School of Informatics, Kyoto University Nara Institute of Science and Technology, Institute for Research Initiatives
  • YANO Ken
    Nara Institute of Science and Technology, Institute for Research Initiatives
  • KURODA Tomohiro
    Graduate School of Informatics, Kyoto University

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  • <b>レセプトデータに基づく非結核性抗酸菌症患者への薬剤処方実態に関する調査 </b>
  • レセプトデータに基づく非結核性抗酸菌症患者への薬剤処方実態に関する調査
  • レセプトデータ ニ モトズク ヒケッカクセイ コウサンキンショウ カンジャ エ ノ ヤクザイ ショホウ ジッタイ ニ カンスル チョウサ

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Abstract

<p>In recent years, the number of patients with non-tuberculosis mycobacteria (NTM) has rapidly increasing.</p><p>According to the nationwide survey conducted in 2014, the number of patients with NTM was reported to increase 9.7 times compared to the survey in 1980. Among them, the patients with Mycobacterium avium complex (MAC) account for about 88.8% of them. It is the main cause of the rapid increase of NTM patients mainly in middle-aged and elderly woman. To treat patients with MAC, it is common to do chemotherapy over one year after the bacteria becomes negative. Among experts of NTM, it is recommended to do chemotherapy preventing generation of resistant bacteria by using clarithromycin (CAM) and rifampicin and ethambutol (EB) in combination. Meanwhile, a monotherapy of CAM and high-dose EB administration over a long period are not currently recommended due to side effects. However, it has not been clarified so far how many such drug prescriptions had existed. Therefore, in this study, we investigated the actual drug prescription of 571 patients who were presumed to be NTM in health insurance data collected from 2015 to 2016. As a result, about 5.1% (29 cases) of CAM monotherapy and 4.4% (15 cases) of EB high-dose prescription over 3 months were observed. In general, because NTM is a case where a long-term antibiotic treatment is required, it increases the possibility of any disadvantages exerting on patients. Hence, we consider it is an important and urgent matter to inform the correct information widely to clinical workers and sites.</p>

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