Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation Inhibitors
To reduce pharmacy-related medical expenses, it is necessary to reduce drug costs. One way to achieve this is by increasing the usage rate of generic drugs. The purpose of this study was to identify platelet aggregation inhibitors (PAIs) that contribute to high drug costs and are sold as brand-name...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2023-12-01
|
| Series: | Inquiry: The Journal of Health Care Organization, Provision, and Financing |
| Online Access: | https://doi.org/10.1177/00469580231219094 |
| _version_ | 1797375345347788800 |
|---|---|
| author | Takaaki Suzuki BS Mari Iwata BS Mika Maezawa MS Kiyoka Matsumoto BS Mizuki Tanaka BS Riko Satake BS Misaki Inoue BS Yu Yoshida BS Kazuhiro Iguchi PhD Mitsuhiro Nakamura PhD |
| author_facet | Takaaki Suzuki BS Mari Iwata BS Mika Maezawa MS Kiyoka Matsumoto BS Mizuki Tanaka BS Riko Satake BS Misaki Inoue BS Yu Yoshida BS Kazuhiro Iguchi PhD Mitsuhiro Nakamura PhD |
| author_sort | Takaaki Suzuki BS |
| collection | DOAJ |
| description | To reduce pharmacy-related medical expenses, it is necessary to reduce drug costs. One way to achieve this is by increasing the usage rate of generic drugs. The purpose of this study was to identify platelet aggregation inhibitors (PAIs) that contribute to high drug costs and are sold as brand-name drugs in order to increase the usage rate of generic drugs, and to analyze the factors that affect the usage rate of generic drug. We conducted a cross-sectional study based on the National Database of Health Insurance Claims and Specific Health Checkups of Japan Open Data Japan (NODJ) of the Ministry of Health, Labor and Welfare and datasets containing related medical information from official statistical surveys such as the Basic Survey on Wage Structure. Monthly personal income in each prefecture were negatively correlated with outpatient out-of-hospital and outpatient in-hospital prescriptions of the PAIs clopidogrel (75 mg), cilostazol (50 mg), cilostazol (100 mg), and ticlopidine (100 mg), but not between monthly personal income and outpatient out-of-hospital prescription of ticlopidine (100 mg). For outpatient out-of-hospital prescriptions and outpatient in-hospital prescriptions, negative correlation was generally observed between the usage rate of generic drug and monthly personal income, except for ticlopidine (100 mg), which has the lowest price among the brand-name drugs. The usage rate of generic PAIs is negatively correlated with monthly personal income. Promoting the use of generic drugs among high-income earners might be necessary to further increase the usage rate of generic drug. |
| first_indexed | 2024-03-08T19:22:56Z |
| format | Article |
| id | doaj.art-d96a4aff4cd14f1b99675ee43821966d |
| institution | Directory Open Access Journal |
| issn | 0046-9580 1945-7243 |
| language | English |
| last_indexed | 2024-03-08T19:22:56Z |
| publishDate | 2023-12-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Inquiry: The Journal of Health Care Organization, Provision, and Financing |
| spelling | doaj.art-d96a4aff4cd14f1b99675ee43821966d2023-12-26T18:04:37ZengSAGE PublishingInquiry: The Journal of Health Care Organization, Provision, and Financing0046-95801945-72432023-12-016010.1177/00469580231219094Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation InhibitorsTakaaki Suzuki BS0Mari Iwata BS1Mika Maezawa MS2Kiyoka Matsumoto BS3Mizuki Tanaka BS4Riko Satake BS5Misaki Inoue BS6Yu Yoshida BS7Kazuhiro Iguchi PhD8Mitsuhiro Nakamura PhD9Gifu Pharmaceutical University, Gifu, JapanKifune Pharmacy Yanaizu-Branch, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanGifu Pharmaceutical University, Gifu, JapanTo reduce pharmacy-related medical expenses, it is necessary to reduce drug costs. One way to achieve this is by increasing the usage rate of generic drugs. The purpose of this study was to identify platelet aggregation inhibitors (PAIs) that contribute to high drug costs and are sold as brand-name drugs in order to increase the usage rate of generic drugs, and to analyze the factors that affect the usage rate of generic drug. We conducted a cross-sectional study based on the National Database of Health Insurance Claims and Specific Health Checkups of Japan Open Data Japan (NODJ) of the Ministry of Health, Labor and Welfare and datasets containing related medical information from official statistical surveys such as the Basic Survey on Wage Structure. Monthly personal income in each prefecture were negatively correlated with outpatient out-of-hospital and outpatient in-hospital prescriptions of the PAIs clopidogrel (75 mg), cilostazol (50 mg), cilostazol (100 mg), and ticlopidine (100 mg), but not between monthly personal income and outpatient out-of-hospital prescription of ticlopidine (100 mg). For outpatient out-of-hospital prescriptions and outpatient in-hospital prescriptions, negative correlation was generally observed between the usage rate of generic drug and monthly personal income, except for ticlopidine (100 mg), which has the lowest price among the brand-name drugs. The usage rate of generic PAIs is negatively correlated with monthly personal income. Promoting the use of generic drugs among high-income earners might be necessary to further increase the usage rate of generic drug.https://doi.org/10.1177/00469580231219094 |
| spellingShingle | Takaaki Suzuki BS Mari Iwata BS Mika Maezawa MS Kiyoka Matsumoto BS Mizuki Tanaka BS Riko Satake BS Misaki Inoue BS Yu Yoshida BS Kazuhiro Iguchi PhD Mitsuhiro Nakamura PhD Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation Inhibitors Inquiry: The Journal of Health Care Organization, Provision, and Financing |
| title | Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation Inhibitors |
| title_full | Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation Inhibitors |
| title_fullStr | Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation Inhibitors |
| title_full_unstemmed | Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation Inhibitors |
| title_short | Study of Factors to Increase the Usage Rate of Generic Drugs in Platelet Aggregation Inhibitors |
| title_sort | study of factors to increase the usage rate of generic drugs in platelet aggregation inhibitors |
| url | https://doi.org/10.1177/00469580231219094 |
| work_keys_str_mv | AT takaakisuzukibs studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT mariiwatabs studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT mikamaezawams studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT kiyokamatsumotobs studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT mizukitanakabs studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT rikosatakebs studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT misakiinouebs studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT yuyoshidabs studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT kazuhiroiguchiphd studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors AT mitsuhironakamuraphd studyoffactorstoincreasetheusagerateofgenericdrugsinplateletaggregationinhibitors |