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  • Filgotinib Significantly Improved Patient-reported Health-related Quality of Life for Patients with Active Rheumatoid Arthritis: A Post Hoc Analysis of SF-36 and HAQ-DI from Phase 3 Studies

    Author(s)
    Bingham, Clifton
    Walker, David
    Nash, Peter
    Lee, Susan
    Ye, Lei
    Hu, Hao
    Khalid, Javaria Mona
    Combe, Bernard
    Griffith University Author(s)
    Nash, Peter
    Year published
    2020
    Metadata
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    Abstract
    Background/Purpose: Reduction in pain and fatigue, maintenance of physical functioning, and improvement in health-related quality of life (HRQoL) are vital aspects of successful treatment for patients (pts) with RA. In phase 3 clinical trials, filgotinib (FIL)—a potent, selective, oral, small molecule Janus kinase 1 inhibitor—improved signs and symptoms of RA when used in combination with MTX in pts with inadequate response to MTX (MTX-IR; FINCH 1 study [F1]), or to a biologic (b)DMARD (bDMARD-IR; FINCH 2 study [F2]).1,2 This is a post hoc analysis of functional status in both studies, with a focus on patient-reported outcomes ...
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    Background/Purpose: Reduction in pain and fatigue, maintenance of physical functioning, and improvement in health-related quality of life (HRQoL) are vital aspects of successful treatment for patients (pts) with RA. In phase 3 clinical trials, filgotinib (FIL)—a potent, selective, oral, small molecule Janus kinase 1 inhibitor—improved signs and symptoms of RA when used in combination with MTX in pts with inadequate response to MTX (MTX-IR; FINCH 1 study [F1]), or to a biologic (b)DMARD (bDMARD-IR; FINCH 2 study [F2]).1,2 This is a post hoc analysis of functional status in both studies, with a focus on patient-reported outcomes using the Short Form-36 (SF-36) and HAQ-Disability Index (HAQ-DI). Methods: All pts met 2010 ACR/EULAR criteria for RA. F1 pts were randomized 3:3:2:3 to receive once-daily FIL 200 mg, FIL 100 mg, adalimumab (ADA), or placebo (PBO) for up to 52 weeks (W) on a weekly stable background dose of MTX; at W24, pts receiving PBO were rerandomized 1:1 to FIL 200 or 100 mg. F2 pts were randomized 1:1:1 to receive once-daily FIL 200 mg, FIL 100 mg, or PBO for up to 24W on a stable background dose of permitted conventional synthetic (cs)DMARD(s). SF-36 was assessed at baseline and by visit on W4, 12, 24, 36, and 52. HAQ-DI was assessed at baseline and by visit on W2, 4, 8, 12, 14, 16, 18, 20, 24, 26, 30, 36, 44, and 52. The proportion of pts achieving HAQ-DI ≤0.5 was compared for FIL vs PBO (F1/F2) and FIL vs ADA (F1) using logistic regression with treatment groups and stratification factors in the model. Comparisons of change from baseline in SF-36 domains between FIL vs PBO and FIL vs ADA were conducted using mixed-effects model for repeated measures (MMRM) including treatment group, visit, treatment group by visit interaction, stratification factors, and baseline value as fixed effects; and subjects as random effect. All analyses were exploratory without multiplicity adjustment, and nominal P values are reported. Results: Improvements in SF-36 domains in all FIL arms were observed as early as W4 and were sustained or increased through end of study (Fig 1). Nominally statistically significant improvements across all SF-36 domain scores occurred for pts on FIL 200 mg vs PBO at W4, 12, and 24 in F1, and 7/8 domains at W4 and 12 in F2; substantial improvements were evident particularly for bodily pain, physical functioning, and role-functional (Fig 1). The proportion of pts with HAQ-DI ≤0.5 was nominally statistically significantly higher in each FIL arm vs PBO early in treatment (W2 for F1 and W8 for F2) and for FIL 200 mg vs ADA at W4, 8, 36, and 52 (F1) (Fig 2). Conclusion: FIL provided rapid and sustained improvements across multiple aspects of pts’ HRQoL captured by SF-36 and HAQ-DI when used in combination with csDMARD for treatment of MTX-IR or bDMARD-IR RA. Improvements in physical activities were observed with both HAQ-DI and SF-36. Furthermore, FIL meaningfully reduced HAQ-DI score to near-normal levels in relatively treatment-resistant bDMARD-IR patients, in addition to more MTX-IR pts on FIL 200 mg reaching this state by end of study when compared to pts on ADA. These results suggest that FIL can improve the daily lives of pts with advanced RA.
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    Conference Title
    Arthritis & Rheumatology
    Volume
    72
    Issue
    S10
    Publisher URI
    https://acrabstracts.org/abstract/filgotinib-significantly-improved-patient-reported-health-related-quality-of-life-for-patients-with-active-rheumatoid-arthritis-a-post-hoc-analysis-of-sf-36-and-haq-di-from-phase-3-studies/
    Subject
    Medical and Health Sciences
    Science & Technology
    Life Sciences & Biomedicine
    Rheumatology
    Publication URI
    http://hdl.handle.net/10072/402194
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    • Conference outputs

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