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Bugatti S, De Stefano L, Gandolfo S, Ciccia F, Montecucco C. Autoantibody-negative rheumatoid arthritis: still a challenge for the rheumatologist. THE LANCET. RHEUMATOLOGY 2023; 5:e743-e755. [PMID: 38251565 DOI: 10.1016/s2665-9913(23)00242-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/04/2023] [Accepted: 09/06/2023] [Indexed: 01/23/2024]
Abstract
Increased research over the past 30 years has greatly improved the understanding of the pathophysiological mechanisms and clinical aspects of autoantibody-positive rheumatoid arthritis, resulting in improved management and outcomes. In contrast, the subset of rheumatoid arthritis that does not have autoantibodies (such as rheumatoid factor and anti-citrullinated protein autoantibodies) remains less well defined in its pathogenic mechanisms. Autoantibody-negative rheumatoid arthritis continues to pose diagnostic challenges, might respond differently to therapies, and appears to be burdened with different comorbidities and outcomes. The clear separation of rheumatoid arthritis according to serotypes is still a subject of uncertainty and controversy, and studies specifically focused on comparing rheumatoid arthritis and rheumatoid arthritis-like arthritides that do not have autoantibodies remain scarce. The purpose of this Review is to summarise the peculiarities that make autoantibody-negative rheumatoid arthritis different from its autoantibody-positive counterpart, with the aim of generating debate and stimulating further research on this challenging condition.
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Affiliation(s)
- Serena Bugatti
- Department of Internal Medicine and Therapeutics, Università di Pavia, Pavia, Italy; Division of Rheumatology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.
| | - Ludovico De Stefano
- Department of Internal Medicine and Therapeutics, Università di Pavia, Pavia, Italy; Division of Rheumatology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Saviana Gandolfo
- UOSD di Reumatologia, Ospedale San Giovanni Bosco, Naples, Italy
| | - Francesco Ciccia
- Dipartimento di Medicina di Precisione, Università della Campania L Vanvitelli, Naples, Italy
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Sahbudin I, Singh R, Trickey J, Baranskaya A, Tracy A, Raza K, Filer A, Jowett S, Boonen A. Is symptom duration before DMARD therapy a determinant of direct and indirect costs in DMARD-naïve RA patients? A systematic review. Rheumatol Adv Pract 2023; 7:rkad040. [PMID: 37197378 PMCID: PMC10185403 DOI: 10.1093/rap/rkad040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/12/2023] [Indexed: 05/19/2023] Open
Abstract
Objective Early treatment of RA improves clinical outcomes; however, the impact on health economic outcomes is unclear. This review sought to investigate the relationship between symptom/disease duration and resource utilization/costs and the responsiveness of costs following RA diagnosis. Methods A systematic search was performed on Pubmed, EMBASE, CINAHL and Medline. Studies were eligible if patients were DMARD-naïve and fulfilled 1987 ACR or 2010 ACR/EULAR RA classification criteria. Studies had to report symptom/disease duration and resource utilization or direct/indirect costs as health economic outcomes. The relationships between symptom/disease duration and costs were explored. Results Three hundred and fifty-seven records were identified in a systematic search; nine were eligible for analysis. The mean/median of symptom/disease duration in studies ranged between 25 days and 6 years. Annual direct costs of RA following diagnosis showed a U-shaped distribution in two studies. Longer symptom duration before starting a DMARD (>180 days) was associated with lower health-care utilization in the first year of RA diagnosis in one study. Annual direct and indirect costs 6 months before RA diagnosis were higher in patients with shorter symptom duration (<6 months) in one study. Given the clinical and methodological heterogeneities, the association between symptom/disease duration and costs after diagnosis was not computed. Conclusion The association between symptom/disease duration at the time of DMARD initiation and resource utilization/cost in patients with RA remains unclear. Health economic modelling with clearly defined symptom duration, resource utilization and long-term productivity is vital to address this evidence gap.
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Affiliation(s)
- Ilfita Sahbudin
- Correspondence to: Ilfita Sahbudin, Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham B15 2WB, UK. E-mail:
| | | | - Jeanette Trickey
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Aliaksandra Baranskaya
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Alexander Tracy
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Karim Raza
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
- Department of Rheumatology, Sandwell and West Birmingham NHS Trust, Birmingham, UK
| | - Andrew Filer
- Rheumatology Research Group, Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham, UK
| | - Sue Jowett
- Health Economics Unit, Institute for Applied Health Research, University of Birmingham, Birmingham, UK
| | - Annelies Boonen
- Division of Rheumatology, Department of Internal Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
- Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
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Jiang S, Wang Y, Si L, Zang X, Gu YY, Jiang Y, Liu GG, Wu J. Incorporating productivity loss in health economic evaluations: a review of guidelines and practices worldwide for research agenda in China. BMJ Glob Health 2022; 7:bmjgh-2022-009777. [PMID: 35977755 PMCID: PMC9389102 DOI: 10.1136/bmjgh-2022-009777] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022] Open
Abstract
Introduction Productivity loss may contribute to a large proportion of costs of health conditions in an economic evaluation from a societal perspective, but there is currently a lack of methodological consensus on how productivity loss should be measured and valued. Despite the research progress surrounding this issue in other countries, it has been rarely discussed in China. Methods We reviewed the official guidelines on economic evaluations in different countries and regions and screened the literature to summarise the extent to which productivity loss was incorporated in economic evaluations and the underlying methodological challenges. Results A total of 48 guidelines from 46 countries/regions were included. Although 32 (67%) guidelines recommend excluding productivity loss in the base case analysis, 23 (48%) guidelines recommend including productivity loss in the base case or additional analyses. Through a review of systematic reviews and the economic evaluation studies included in these reviews, we found that the average probability of incorporating productivity loss in an economic evaluation was 10.2%. Among the economic evaluations (n=478) that explicitly considered productivity loss, most (n=455) considered losses from paid work, while only a few studies (n=23) considered unpaid work losses. Recognising the existing methodological challenges and the specific context of China, we proposed a practical research agenda and a disease list for progress on this topic, including the development of the disease list comprehensively consisting of health conditions where the productivity loss should be incorporated into economic evaluations. Conclusion An increasing number of guidelines recommend the inclusion of productivity loss in the base case or additional analyses of economic evaluation. We optimistically expect that more Chinese researchers notice the importance of incorporating productivity loss in economic evaluations and anticipate guidelines that may be suitable for Chinese practitioners and decision-makers that facilitate the advancement of research on productivity loss measurement and valuation.
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Affiliation(s)
- Shan Jiang
- School of Population and Public Health, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Yitong Wang
- Public Health Department, Aix- Marseille-University, Marseille, France
| | - Lei Si
- The George Institute for Global Health, UNSW Sydney, Kensington, New South Wales, Australia
| | - Xiao Zang
- Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island, USA
| | - Yuan-Yuan Gu
- Macquarie University Centre for the Health Economy, Macquarie Business School and Australian Institute of Health Innovation, Macquarie University, Sydney, New South Wales, Australia
| | - Yawen Jiang
- School of Public Health (Shenzhen), Sun Yat-Sen University, Guangzhou, China
| | - Gordon G Liu
- National School of Development, Peking University, Beijing, China.,Institute for Global Health and Development, Peking University, Beijing, China
| | - Jing Wu
- School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China
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