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Zdenka Haskova, Vibeke Strand, Sophie Dimonaco, Katie Tuckwell, Micki Klearman, Neil Collinson, John H. Stone; Health-Related Quality of Life in Patients With Giant Cell Arteritis Treated With Tocilizumab in a Phase 3 Randomized Controlled Trial. Invest. Ophthalmol. Vis. Sci. 2018;59(9):2174.
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Superior rates of sustained glucocorticoid (GC)–free remission were shown in patients with giant cell arteritis (GCA) treated with weekly or every-other-week subcutaneous (SC) tocilizumab (TCZ) 162 mg + 26-week GC taper for 52 weeks compared with placebo + 26-week or 52-week GC taper (PBO+26 or PBO+52) in a phase 3 randomized controlled trial (GiACTA). Statistically significant improvements in SF-36 Physical Component Summary (PCS) scores were reported for weekly TCZ vs PBO+52 and in patient-reported global assessment of disease activity for both TCZ groups vs both PBO groups (Stone JH et al. N Engl J Med. 2017;377: 317-328). Further analyses of patient-reported outcomes (PROs) in the GiACTA trial are reported.
PRO analyses of SF-36 PCS and Mental Component Summary (MCS), individual SF-36 domains, and Functional Assessment of Chronic Illness Therapy (FACIT)–fatigue compared patients treated with weekly TCZ (n = 100) vs PBO+26 (n = 50) or PBO+52 (n = 51) for 52 weeks based on reported data, including all responders as well as patients with post-escape data following flare.
Improvements in SF-36 PCS and MCS scores, 6 of 8 SF-36 domains, and FACIT–Fatigue at week 52 were statistically greater with weekly TCZ than PBO+52 (p < 0.01; Table, Figure); similar trends were reported vs PBO+26 (not shown). At week 52, mean scores exceeded age and gender (A/G)–matched normative scores in the weekly TCZ group; higher proportions of patients reported scores exceeding A/G norms in SF-36 PCS and MCS, all SF-36 domains, and FACIT-Fatigue (Table). The median cumulative prednisone dose over 52 weeks was lower with weekly TCZ (1862.0 mg) than with PBO+26 (3296.0 mg) or PBO+52 (3817.5 mg) (p < 0.01).
Patients with GCA treated with weekly TCZ 162 mg and a 26-week GC taper reported statistically significantly greater improvements in health-related quality of life and fatigue that exceeded normative values compared with those receiving a 52-week GC taper alone, in part ascribed to lower steroid doses.
This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.
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