Clinical characteristics and treatment outcomes in multiple sclerosis patients treated with anti-CD20s who switched to fumarates: a retrospective analysis of a US healthcare claims database.

IF 1.9 4区 医学 Q3 HEALTH CARE SCIENCES & SERVICES
Aliza B Ben-Zacharia, Jenny J Feng, Brandon P Moss, Nicholas Belviso, Yu Zhang, Filipe Branco, Jason P Mendoza, James B Lewin, Sarah M England
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引用次数: 0

Abstract

Aim: Anti-CD20 monoclonal antibodies and fumarates are common multiple sclerosis (MS) disease-modifying therapies (DMTs). Data on switching from anti-CD20s to other DMTs are limited. This retrospective, observational study of the US Komodo Health Sentinel claims database aimed to evaluate a de-escalation strategy in a real-world cohort, comparing clinical characteristics, relapses, healthcare encounters (HCEs) and healthcare costs (HCCs) between patients aged ≥18 years with stable MS who switched from anti-CD20s to fumarates ('Switchers') versus patients who stayed on anti-CD20s ('Stayers'). Materials & methods: Patients with MS (diagnosed 1 January 2015-31 August 2022) were propensity score matched 5:1 (Stayers:Switchers) and followed from index to end of study; end of insurance eligibility; >45-day gap in index DMT; or DMT switch. Primary outcomes were clinical characteristics and claims-based annualized relapse rate (ARR). Rates of HCEs and HCCs were estimated. Results: Baseline characteristics were well balanced between cohorts (Stayers, n = 540; Switchers, n = 108). Mean (SD) duration of post-index follow-up was 341.4 (250.0) days for both cohorts. Mean (SD) ARR was 0.08 (0.41; Stayers) versus 0.14 (0.5; Switchers; p = 0.3). Twenty-one Stayers (3.9%) and 1 Switcher (0.9%) were hospitalized for infections, with mean stays of 9.9 and 1 day, respectively. Mean annualized all-cause HCEs were similar between cohorts; annualized inpatient infection-related HCEs were higher for Stayers versus Switchers (mean difference: -0.05; p = 0.005). Annualized all-cause HCCs were similar between cohorts; Switchers had lower annualized infection-related HCCs overall (mean difference: -$2412; p = 0.002) and in the inpatient setting (mean difference: -$2325; p = 0.002). Conclusion: After 1 year, no significant differences in ARR emerged between cohorts. Switchers experienced lower inpatient infection-related HCEs, shorter inpatient infection-related hospital stays and lower overall infection-related HCCs.

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来源期刊
Journal of comparative effectiveness research
Journal of comparative effectiveness research HEALTH CARE SCIENCES & SERVICES-
CiteScore
3.50
自引率
9.50%
发文量
121
期刊介绍: Journal of Comparative Effectiveness Research provides a rapid-publication platform for debate, and for the presentation of new findings and research methodologies. Through rigorous evaluation and comprehensive coverage, the Journal of Comparative Effectiveness Research provides stakeholders (including patients, clinicians, healthcare purchasers, and health policy makers) with the key data and opinions to make informed and specific decisions on clinical practice.
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