Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based survey

Abstract Background Biological disease-modifying antirheumatic drugs (bDMARDs) have dramatically improved the quality of life of patients with rheumatoid arthritis (RA); however, concerns regarding their high cost persist. Self-injection (SI) may reduce medical expenses by decreasing the frequency o...

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Main Authors: Kazuhiko Takahata, Yui Maeda, Eiichi Tanaka, Ryoko Sakai, Manabu Akazawa
Format: Article
Language:English
Published: BMC 2025-05-01
Series:BMC Health Services Research
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Online Access:https://doi.org/10.1186/s12913-025-12908-1
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author Kazuhiko Takahata
Yui Maeda
Eiichi Tanaka
Ryoko Sakai
Manabu Akazawa
author_facet Kazuhiko Takahata
Yui Maeda
Eiichi Tanaka
Ryoko Sakai
Manabu Akazawa
author_sort Kazuhiko Takahata
collection DOAJ
description Abstract Background Biological disease-modifying antirheumatic drugs (bDMARDs) have dramatically improved the quality of life of patients with rheumatoid arthritis (RA); however, concerns regarding their high cost persist. Self-injection (SI) may reduce medical expenses by decreasing the frequency of hospital visits. In this study, we compared the health economic costs of patients with RA who selected SI of bDMARDs and those who did not. Methods In this cross-sectional study, we analyzed data from January 2024 using a web-based self-report survey provided by Medilead, Inc. This study included patients with RA who were divided into the SI and non-SI groups. We calculated per visit and total annual out-of-pocket medical expenses for each group. Results Among 326 patients with RA, 79 (24.2%; female: 64.6%; mean age: 60.2 years) were treated with bDMARDs. Of these, 65 patients (82.3%) selected SI, and 14 (17.7%) selected non-SI administration. The non-SI group had a higher median frequency of hospital visits than the SI group (12 vs. 6 visits per year). The median out-of-pocket medical expense per visit was higher in the SI group (155.17 USD/visit) than in the non-SI group (86.21 USD/visit). However, the SI group had lower total annual out-of-pocket medical expenses than the non-SI group (948.42 USD/year vs. 1,071.72 USD/year, respectively). Conclusion Over 80% of patients with RA selected SI to administer bDMARDs, and their total annual out-of-pocket medical expenses were lower than those of patients who selected non-SI owing to the reduced frequency of hospital visits. The results of our study may provide useful insights into the selection of self-injectable bDMARDs for therapeutic decision-making based on out-of-pocket medical expenses.
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spelling doaj-art-34cf99412cbc4cfa8a8e912c9349a4552025-08-20T01:52:25ZengBMCBMC Health Services Research1472-69632025-05-0125111010.1186/s12913-025-12908-1Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based surveyKazuhiko Takahata0Yui Maeda1Eiichi Tanaka2Ryoko Sakai3Manabu Akazawa4Department of Public Health and Epidemiology, Meiji Pharmaceutical UniversityDepartment of Public Health and Epidemiology, Meiji Pharmaceutical UniversityDepartment of Rheumatology, Tokyo Women’s Medical University School of MedicineDepartment of Public Health and Epidemiology, Meiji Pharmaceutical UniversityDepartment of Public Health and Epidemiology, Meiji Pharmaceutical UniversityAbstract Background Biological disease-modifying antirheumatic drugs (bDMARDs) have dramatically improved the quality of life of patients with rheumatoid arthritis (RA); however, concerns regarding their high cost persist. Self-injection (SI) may reduce medical expenses by decreasing the frequency of hospital visits. In this study, we compared the health economic costs of patients with RA who selected SI of bDMARDs and those who did not. Methods In this cross-sectional study, we analyzed data from January 2024 using a web-based self-report survey provided by Medilead, Inc. This study included patients with RA who were divided into the SI and non-SI groups. We calculated per visit and total annual out-of-pocket medical expenses for each group. Results Among 326 patients with RA, 79 (24.2%; female: 64.6%; mean age: 60.2 years) were treated with bDMARDs. Of these, 65 patients (82.3%) selected SI, and 14 (17.7%) selected non-SI administration. The non-SI group had a higher median frequency of hospital visits than the SI group (12 vs. 6 visits per year). The median out-of-pocket medical expense per visit was higher in the SI group (155.17 USD/visit) than in the non-SI group (86.21 USD/visit). However, the SI group had lower total annual out-of-pocket medical expenses than the non-SI group (948.42 USD/year vs. 1,071.72 USD/year, respectively). Conclusion Over 80% of patients with RA selected SI to administer bDMARDs, and their total annual out-of-pocket medical expenses were lower than those of patients who selected non-SI owing to the reduced frequency of hospital visits. The results of our study may provide useful insights into the selection of self-injectable bDMARDs for therapeutic decision-making based on out-of-pocket medical expenses.https://doi.org/10.1186/s12913-025-12908-1Rheumatoid arthritisSelf-injectionBiological disease-modifying antirheumatic drugsHealth economic evaluationReal-world web-based surveyOut-of-pocket medical expenses
spellingShingle Kazuhiko Takahata
Yui Maeda
Eiichi Tanaka
Ryoko Sakai
Manabu Akazawa
Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based survey
BMC Health Services Research
Rheumatoid arthritis
Self-injection
Biological disease-modifying antirheumatic drugs
Health economic evaluation
Real-world web-based survey
Out-of-pocket medical expenses
title Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based survey
title_full Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based survey
title_fullStr Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based survey
title_full_unstemmed Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based survey
title_short Health economic evaluation of self-injection of biologics in patients with rheumatoid arthritis using a Japanese real-world web-based survey
title_sort health economic evaluation of self injection of biologics in patients with rheumatoid arthritis using a japanese real world web based survey
topic Rheumatoid arthritis
Self-injection
Biological disease-modifying antirheumatic drugs
Health economic evaluation
Real-world web-based survey
Out-of-pocket medical expenses
url https://doi.org/10.1186/s12913-025-12908-1
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