Objectives: Etanercept 50 mg a week is approved in the treatment of AS. Increasing the etanercept dose to 100 mg/week improves efficacy in cutaneous psoriasis, a clinical manifestation related to the spondylarthritis family, while maintaining its safety profile. The purpose of this study was to evaluate the efficacy and safety of etanercept 100 vs 50 mg/week in patients with AS. Methods: Adult patients with AS were randomized to receive etanercept 50mg twice a week (biw), or etanercept 50mg once a week (qw) for 12 weeks. The primary efficacy endpoint was Ankylosing Spondylitis Assessment Study (ASAS20) response at Week 12; secondary endpoints included ASAS40, ASAS50, ASAS70 and ASAS5/6 responses, partial remission and quality of life. Safety was assessed until 15 days after the last visit. Results: A total of 108 patients were randomly selected and treated, 54 in each arm. At 12 weeks, ASAS20 response was achieved by 34 (71%) out of 48 patients of the etanercept 50mg biw group and by 37 (76%) out of 49 patients of the etanercept 50mg qw group (not statistically significant differences). Other efficacy variables improved significantly over time, but not between treatment groups. Fifty-six patients experienced at least one adverse event (generally, infections and infestations, gastrointestinal disorders and injection site reactions), most of them mild or moderate. Conclusions: High-dose (100 mg/week) etanercept in the treatment of AS for 12 weeks is as safe as the standard dose (50 mg/week). However, it does not significantly increase its efficacy. © The Author 2011. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved.
CITATION STYLE
Navarro-Sarabia, F., Fernández-Sueiro, J. L., Torre-Alonso, J. C., Gratacos, J., Queiro, R., Gonzalez, C., … Collantes, E. (2011). High-dose etanercept in ankylosing spondylitis: Results of a 12-week randomized, double blind, controlled multicentre study (LOADET study). Rheumatology, 50(10), 1828–1837. https://doi.org/10.1093/rheumatology/ker083
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