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Tanaka E, Kawahito Y, Kohno M, Hirata S, Kishimoto M, Kaneko Y, Tamai H, Seto Y, Morinobu A, Sugihara T, Murashima A, Kojima M, Mori M, Ito H, Kojima T, Sobue Y, Nishida K, Matsushita I, Nakayama T, Yamanaka H, Harigai M. Systematic review and meta-analysis of biosimilar for the treatment of rheumatoid arthritis informing the 2020 update of the Japan College of Rheumatology clinical practice guidelines for the management of rheumatoid arthritis. Mod Rheumatol 2022; 32:74-86. [PMID: 33706664 DOI: 10.1080/14397595.2021.1899591] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 03/01/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVES To evaluate the efficacy and safety of biosimilars compared with reference biological disease modifying antirheumatic drugs (bDMARDs) in patients with rheumatoid arthritis (RA) as a part of the process of developing the 2020 update of the Japan College of Rheumatology guidelines for the management of RA. METHODS PubMed, Cochrane Library, and Japan Centra Revuo Medicina were searched for articles to conduct a systematic review (SR). The quality of evidence was assessed using the Grading of Recommendations Assessment, Development, and Evaluation system. RESULTS Twenty randomized controlled trials were included (biosimilars of infliximab, etanercept, and adalimumab). A meta-analysis revealed that the risk ratios (RRs) and 95% confidence intervals (CIs) of achieving the American College of Rheumatology 50% response (ACR50) at week 24 and serious adverse events (SAEs) for biosimilars compared with the reference bDMARDs were 1.04 (0.98-1.10) and 0.84 (0.61-1.18), respectively. The RRs of achieving ACR50 and SAEs at week 24 were respectively 0.93 (0.69-1.26) and 2.15 (0.55-8.35) in the patients who switched to biosimilars from the reference bDMARDs and 0.92 (0.76-1.12) and 1.41 (0.32-6.15) in those who continued the reference bDMARDs. CONCLUSION Biosimilars and reference bDMARDs were equally useful for the management of RA.
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Affiliation(s)
- Eiichi Tanaka
- Department of Rheumatology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
| | - Yutaka Kawahito
- Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Masataka Kohno
- Inflammation and Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shintaro Hirata
- Department of Clinical Immunology and Rheumatology, Hiroshima University Hospital, Hiroshima, Japan
| | - Mitsumasa Kishimoto
- Department of Nephrology and Rheumatology, Kyorin University School of Medicine, Tokyo, Japan
| | - Yuko Kaneko
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Hiroya Tamai
- Department of Rheumatology, Yachiyo Medical Center, Tokyo Women's Medical University, Chiba, Japan
| | - Yohei Seto
- Department of Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Akio Morinobu
- Department of Lifetime Clinical Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan
| | - Takahiko Sugihara
- Division of Maternal Medicine, Center for Maternal-Fetal, Neonatal and Reproductive Medicine/Japan Drug Information Institute in Pregnancy, National Center for Child Health and Development, Tokyo, Japan
| | - Atsuko Murashima
- Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Masayo Kojima
- Department of Advanced Medicine for Rheumatic Diseases and Orthopedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaaki Mori
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiromu Ito
- Department of Orthopedic Surgery, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Toshihisa Kojima
- Department of Orthopedic Surgery, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
| | - Yasumori Sobue
- Department of Orthopedic Surgery, Japanese Red Cross Nagoya Daiichi Hospital, Nagoya, Japan
- Department of Orthopedic Surgery, Okayama University Graduate School of Medicine, Density and Pharmaceutical Sciences, Okayama, Japan
| | - Keiichiro Nishida
- Department of Rehabilitation Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Isao Matsushita
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | | | - Hisashi Yamanaka
- Department of Rheumatology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
- Rheumatology, Sanno Medical Center, Tokyo, Japan
- Department of Rheumatology, International University of Health and Welfare, Tokyo, Japan
| | - Masayoshi Harigai
- Department of Rheumatology, Tokyo Women's Medical University School of Medicine, Tokyo, Japan
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Abstract
The main objective of the study was to perform the pharmacoeconomic analysis of synthetic disease-modifying anti-rheumatic drugs in rheumatoid arthritis patients. A prospective, observational study was conducted in 98 rheumatoid arthritis (RA) patients meeting 2010 Rheumatoid Arthritis Classification Criteria. Treatment-naive RA patients were initiated on synthetic disease-modifying anti-rheumatic drugs (DMARD/s) and followed up for 3 months. Average cost-effectiveness analysis was done by taking Health Assessment Questionnaire Disability Index (HAQ-DI) score as a measure of effectiveness. Out of the 98 RA patients, 15.30% were males and 84.69% females. 80.61% RA patients are seropositive. Majority of the study population patients (55%) were on combination of three synthetic DMARDs and almost a quarter (24.48%) were on combination of two synthetic DMARDs. The mean value of DAS 28 at baseline was 6.07 ± 1.33 and after 3 months treatment, the mean was 3.84 ± 1.11. The mean disability index measured by HAQ-DI was significantly reduced from 1.43 ± 0.71 to 0.81 ± 0.61, p < 0.001, after 3 months treatment. The direct medical cost of treatment of RA per month is 997.05 rupees. The average cost-effectiveness ratio of combination of synthetic DMARDs was 1533.92 rupees. Treatment of RA with synthetic DMARDs controls disease activity and improves disability with reasonable cost of treatment. The majority of the direct medical cost is attributable to cost of medicine and laboratory investigation. Use of quality generic drugs and an early diagnosis would minimize the economic burden on the patient.
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Impact of Adalimumab on Work Productivity and Activity Impairment in Japanese Patients with Rheumatoid Arthritis: Large-Scale, Prospective, Single-Cohort ANOUVEAU Study. Adv Ther 2017; 34:686-702. [PMID: 28144917 PMCID: PMC5350205 DOI: 10.1007/s12325-017-0477-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Indexed: 02/03/2023]
Abstract
INTRODUCTION The Adalimumab Non-interventional Trial for Up-verified Effects and Utility (ANOUVEAU) was a large-scale, multicenter, prospective, observational, single-cohort study that evaluated the effects of adalimumab (ADA) on rheumatoid arthritis (RA)-related work productivity and activity impairment (RA-related WPAI) and disease activity in routine rheumatology care in Japan. METHODS Patients with RA were categorized as paid workers (PWs, ≥35 h/week), part-time workers (PTWs, <35 h/week), or homemakers (HMs, unemployed) and were administered the WPAI for RA (WPAI/RA) questionnaire. All patients who received ADA were followed for 48 weeks to evaluate safety and effectiveness. RESULTS Of the 1808 patients analyzed, 825, 243, and 740 patients were PWs, PTWs, and HMs, respectively. WPAI/RA domain scores significantly improved at weeks 12, 24, and 48 in all groups, with maximum improvement observed for PWs (p < 0.05). Additionally, remission rates (according to Disease Activity Score 28, erythrocyte sedimentation rate, Simplified Disease Activity Index, or Health Assessment Questionnaire-Disability Index scores) and EuroQol 5-Dimension 3-Level scores significantly increased from baseline to 48 weeks in all groups (p < 0.0001). Analysis of patient subgroups revealed better WPAI/RA outcomes for patients who were biologic-naïve, treated with concomitant methotrexate, or with RA duration of ≤2 years (p < 0.05). The rate of serious adverse events over 48 weeks of ADA treatment was 5.23%. CONCLUSIONS Treatment with ADA provided sustained improvement in WPAI and had an acceptable safety profile in patients with RA. FUNDING AbbVie GK and Eisai Co., Ltd. TRIAL REGISTRATION ClinicalTrials.gov identifier, NCT01346488.
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Mahlich J, Sruamsiri R. Treatment patterns of rheumatoid arthritis in Japanese hospitals and predictors of the initiation of biologic agents. Curr Med Res Opin 2017; 33:101-107. [PMID: 27647105 DOI: 10.1080/03007995.2016.1239191] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE To describe the usage of different biologic agents for rheumatoid arthritis (RA) in Japan over time and to identify factors that affects the decision to initiate treatment with biologic agents. Determinants of a switch to another biologic agent for patients who are already on biologic treatment were also analyzed. RESEARCH DESIGN AND METHODS We utilized a hospital claims database containing 36,504 Japanese patients with a confirmed RA diagnosis. To analyze the determinants of treatment choices, we applied logistic regression analysis taking into account socio-demographic and medical factors. RESULTS Analyses determined that 11.8% of diagnoses and 25.4% of treated patients in Japan receive a biologic agent. Significant factors associated with biologic treatment initiation include younger age, female sex, and a higher comorbidity index. The route of administration plays a major role when it comes to a switch between different biologic agents. CONCLUSIONS The lower likelihood of elderly patients to be initiated on biologic treatment might be explained by the risk aversion of Japanese physicians' and patients who are afraid of the potential side effects of biologics. This finding is also consistent with the notion of an age bias that impedes elderly patients from optimal access to biologic treatment. Because claims data does not contain clinical parameters such as disease activity the results should be validated in a clinical context.
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Affiliation(s)
- Joerg Mahlich
- a Janssen Pharma Kabushiki Kaisha , Nishi Kanda , Chiyoda-ku , Japan
- b Heinrich-Heine-Universitat Dusseldorf Wirtschaftswissenschaftliche Fakultat Dusseldorf , Germany
| | - Rosarin Sruamsiri
- a Janssen Pharma Kabushiki Kaisha , Nishi Kanda , Chiyoda-ku , Japan
- c Center of Pharmaceutical Outcomes Research , Naresuan University, Phitsanulok , Thailand
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Tanaka E, Inoue E, Yamaguchi R, Shimizu Y, Kobayashi A, Sugimoto N, Hoshi D, Shidara K, Sato E, Seto Y, Nakajima A, Momohara S, Taniguchi A, Yamanaka H. Pharmacoeconomic analysis of biological disease modifying antirheumatic drugs in patients with rheumatoid arthritis based on real-world data from the IORRA observational cohort study in Japan. Mod Rheumatol 2016; 27:227-236. [DOI: 10.1080/14397595.2016.1205799] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Eiichi Tanaka
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Eisuke Inoue
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Rei Yamaguchi
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Yoko Shimizu
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Akiko Kobayashi
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Naoki Sugimoto
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Daisuke Hoshi
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Kumi Shidara
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Eri Sato
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Yohei Seto
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Ayako Nakajima
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Shigeki Momohara
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Atsuo Taniguchi
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
| | - Hisashi Yamanaka
- Institute of Rheumatology, Tokyo Women’s Medical University, Tokyo, Japan
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Hoshi D, Tanaka E, Igarashi A, Inoue E, Kobayashi A, Sugimoto N, Shidara K, Sato E, Seto Y, Nakajima A, Momohara S, Taniguchi A, Tsutani K, Yamanaka H. Profiles of EQ-5D utility scores in the daily practice of Japanese patients with rheumatoid arthritis; Analysis of the IORRA database. Mod Rheumatol 2015; 26:40-5. [PMID: 26052801 DOI: 10.3109/14397595.2015.1059983] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Along with the advances of newly developed medical therapies in rheumatoid arthritis (RA), the number of pharmacoeconomical issues has been paid attention rapidly. For cost-utility analysis and determination of quality-adjusted life years, measurement of the EuroQol 5-dimensional descriptive system (EQ-5D) is essential, and has been used in several clinical studies. However, EQ-5D utility measure in Japanese patients with RA, especially in daily practice has not been fully documented. We analyzed the distribution of EQ5D utility scores and investigated the relationship between other clinical measures based on our Institute of Rheumatology, Rheumatoid Arthritis (IORRA) database. METHOD Among 5,284 outpatients who participated in the IORRA cohort study on October 2007, data from 5,043 patients who completed the EQ-5D questionnaire were cross-sectionally analyzed. EQ-5D scores in each subgroup for baseline feature such as gender, age, disease activity score 28 (DAS28), and Japanese version of health assessment questionnaire (J-HAQ) were evaluated. For the evaluation of variables that influenced EQ-5D score, the contribution of each variable was evaluated by ANOVA. RESULTS Average EQ-5D score was 0.76 in 5,284 patients (84% females, average age: 59.0 years, average disease duration: 12.4 years) whose average DAS28 was 3.3 and average J-HAQ was 0.74. EQ-5D scores were highly correlated with J-HAQ and DAS28, and were significantly lower in females and rheumatoid factor-positive patients. Older age, longer disease duration, higher DAS28, and higher J-HAQ were also significantly associated with lower EQ-5D scores. In multivariate analysis, the factor that most strongly influenced EQ-5D was J-HAQ (57.6%), followed by pain visual analog score (VAS; 12.5%). CONCLUSION This study clearly demonstrated the distribution of EQ-5D score in the daily practice of RA patients, and provides important information for the pharmacoeconomical studies in rheumatology.
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Affiliation(s)
- Daisuke Hoshi
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Eiichi Tanaka
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Ataru Igarashi
- b Department of Drug Policy and Management , Graduate School of Pharmaceutical Sciences, The University of Tokyo , Bunkyo-ku, Tokyo , Japan
| | - Eisuke Inoue
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Akiko Kobayashi
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Naoki Sugimoto
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Kumi Shidara
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Eri Sato
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Yohei Seto
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Ayako Nakajima
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Shigeki Momohara
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Atsuo Taniguchi
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
| | - Kiichiro Tsutani
- b Department of Drug Policy and Management , Graduate School of Pharmaceutical Sciences, The University of Tokyo , Bunkyo-ku, Tokyo , Japan
| | - Hisashi Yamanaka
- a Institute of Rheumatology, Tokyo Women's Medical University , Shinjuku-ku, Tokyo , Japan
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Tanaka E, Inoue E, Hoshi D, Shimizu Y, Kobayashi A, Sugimoto N, Shidara K, Sato E, Seto Y, Nakajima A, Momohara S, Taniguchi A, Yamanaka H. Cost-effectiveness of tocilizumab, a humanized anti-interleukin-6 receptor monoclonal antibody, versus methotrexate in patients with rheumatoid arthritis using real-world data from the IORRA observational cohort study. Mod Rheumatol 2015; 25:503-13. [PMID: 25547018 DOI: 10.3109/14397595.2014.1001475] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To evaluate the cost-effectiveness of tocilizumab in patients with rheumatoid arthritis (RA) in a real-world setting in Japan. METHODS The cost-effectiveness was determined using a Markov model-based probabilistic simulation. Data from RA patients registered in the Institute of Rheumatology, Rheumatoid Arthritis (IORRA) cohort study between April 2007 and April 2011 were extracted using a pair-matching method: tocilizumab group (n = 104), patients who used at least 1 disease-modifying anti- rheumatic drug and in whom tocilizumab treatment was initiated; methotrexate group (n = 104), patients in whom methotrexate treatment was initiated for the first time or after an interruption of 6 or more months. Assuming a 6-month cycle length, health benefits and costs were measured over a lifetime and discounted at an annual rate of 3%. RESULTS Compared with methotrexate treatment, lifetime costs and quality-adjusted life years (QALYs) for tocilizumab treatment were approximately 1.5- and 1.3-times higher, respectively. Incremental cost per QALY gained with tocilizumab was $49,359, which was below the assumed cost-effectiveness threshold of $50,000 per QALY. The probability of tocilizumab being cost- effective was 62.2%. CONCLUSION The simulation model using real-world data from Japan showed that tocilizumab (at a certain price) may improve treatment cost-effectiveness in patients with moderate-to-severe RA by enhancing quality-adjusted life expectancy.
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Affiliation(s)
- Eiichi Tanaka
- Institute of Rheumatology, Tokyo Women's Medical University , Tokyo , Japan
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Omata Y, Hagiwara F, Nishino J, Matsudaira K, Kadono Y, Juji T, Mori T, Nakayama H, Nagase Y, Hirose J, Yasui T, Matsumoto T, Matsui T, Tohma S, Tanaka S. Vertebral fractures affect functional status in postmenopausal rheumatoid arthritis patients. J Bone Miner Metab 2014; 32:725-31. [PMID: 24362454 DOI: 10.1007/s00774-013-0552-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Accepted: 11/14/2013] [Indexed: 10/25/2022]
Abstract
Functional disability is a major concern in patients with rheumatoid arthritis (RA). This retrospective study investigated the risk factors for vertebral fractures (VFs) in postmenopausal RA patients and determined the impact of VFs on functional status. Data from a cohort of 200 postmenopausal RA patients in a single hospital registry were analyzed. Demographic and clinical data, imaging data from spine radiographs, and bone mineral density (BMD) data were collected from the patients at baseline and at the final visit (a mean of 2.9 years after the first visit). Risk factors for incident VFs and their impact on the modified health assessment questionnaire (mHAQ) were analyzed. Twenty-eight patients (14%) developed new VFs (NVFs). Logistic regression analysis adjusted for age, BMI, and disease duration revealed that daily dose of prednisolone, femoral neck BMD, use of active vitamin D3, and use of a bisphosphonate at baseline were factors associated with NVF, with odds ratios (95% confidence interval) of 1.27 (1.05-1.54), 0.94 (0.91-0.97), 0.34 (0.13-0.89), and 0.31 (0.12-0.82), respectively. Patients with NVF exhibited worse mHAQ scores and a greater increase in mHAQ scores from baseline compared with those without NVF. In conclusion, incident VFs were associated with reduced functional status in postmenopausal patients with RA. It is important to prevent VFs to maintain the functional status of RA patients.
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Affiliation(s)
- Yasunori Omata
- Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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Ochi K, Iwamoto T, Saito A, Ikari K, Toyama Y, Taniguchi A, Yamanaka H, Momohara S. Construct validity, reliability, response rate, and association with disease activity of the quick disabilities of the arm, shoulder and hand questionnaire in the assessment of rheumatoid arthritis. Mod Rheumatol 2014; 25:241-5. [DOI: 10.3109/14397595.2014.939420] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Kitahama M, Nakajima A, Inoue E, Taniguchi A, Momohara S, Yamanaka H. Efficacy of adjunct tacrolimus treatment in patients with rheumatoid arthritis with inadequate responses to methotrexate. Mod Rheumatol 2014. [DOI: 10.3109/s10165-012-0745-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Momohara S, Tanaka S, Nakamura H, Mibe J, Iwamoto T, Ikari K, Nishino J, Kadono Y, Yasui T, Takahashi K, Takenouchi K, Hashizume K, Nakahara R, Kubota A, Nakamura T, Nishida K, Suguro T. Recent trends in orthopedic surgery performed in Japan for rheumatoid arthritis. Mod Rheumatol 2014. [DOI: 10.3109/s10165-011-0426-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Yamagiwa K, Iijima S, Furuya T, Ikai T, Inoue E, Taniguchi A, Momohara S, Yamanaka H. Incidence of falls and fear of falling in Japanese patients with rheumatoid arthritis. Mod Rheumatol 2014. [DOI: 10.3109/s10165-010-0351-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Tanaka E, Hoshi D, Igarashi A, Inoue E, Shidara K, Sugimoto N, Sato E, Seto Y, Nakajima A, Momohara S, Taniguchi A, Tsutani K, Yamanaka H. Analysis of direct medical and nonmedical costs for care of rheumatoid arthritis patients using the large cohort database, IORRA. Mod Rheumatol 2014. [DOI: 10.3109/s10165-012-0729-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Seto Y, Tanaka E, Inoue E, Nakajima A, Taniguchi A, Momohara S, Yamanaka H. Studies of the efficacy and safety of methotrexate at dosages over 8 mg/week using the IORRA cohort database. Mod Rheumatol 2014. [DOI: 10.3109/s10165-011-0445-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Nakajima A. [Treatment of rheumatic diseases: current status and future prospective. Topics: III. Biological drugs; 2. IL-6 inhibitor]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 2011; 100:2972-8. [PMID: 22175140 DOI: 10.2169/naika.100.2972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ayako Nakajima
- Institute of Rheumatology, Tokyo Women's Medical Uniersity, Japan
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Yamanaka H. [108th Scientific Meeting of the Japanese Society of Internal medicine: invited lecture: 5. IORRA, a large cohort study for rheumatoid arthritis in Japan]. NIHON NAIKA GAKKAI ZASSHI. THE JOURNAL OF THE JAPANESE SOCIETY OF INTERNAL MEDICINE 2011; 100:2447-2463. [PMID: 22117333 DOI: 10.2169/naika.100.2447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Affiliation(s)
- Hisashi Yamanaka
- Institute of Rheumatology, Tokyo Women's Medical University, Japan
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