Five-year analysis from the ESPRIT 10-year postmarketing surveillance registry of adalimumab treatment for moderate to severe psoriasis
2015
Background ESPRIT is an ongoing, 10-year, observational registry, evaluating long-term safety and effectiveness of adalimumab treatment in routine clinical practice for patients with moderate to severe, chronic plaque psoriasis. Objectives Initial 5-year results are reported. Methods Two populations were analyzed: the "all-treated" population received 1 or more adalimumab doses in registry, continuing adalimumab treatment from a current prescription or previous study participation, and included the "new-prescription" population initiating adalimumab 4 weeks or earlier preregistry entry. Results Data were collected from September 26, 2008, through November 30, 2013, for all-treated (n = 6059), which included new-prescription (n = 2580, 42.6%); median registry exposure was 765 and 677 days, respectively. In all-treated, rate (events per 100 patient-years of total adalimumab exposure [E/100PY]) of serious treatment-emergent adverse events (inside or outside of the registry) was 4.3 E/100PY, serious infection 1.0 E/100PY, malignancies 0.9 E/100PY (nonmelanoma skin cancers 0.6 E/100PY; melanomas Limitations Observational data are subject to outcome-reporting bias. Conclusion No new safety signals were observed with adalimumab treatment during this initial 5-year registry review. Observed number of deaths was below expected. As-observed effectiveness remained stable through 60 months.
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