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Integrated safety in tocilizumab clinical trials

Open access
Schiff, Michael H, Kremer, Joel M, Jahreis, Angelika, Vernon, Emma, Isaacs, John D, van Vollenhoven, Ronald F·2011·Arthritis Research & Therapy

Abstract

Introduction: The efficacy and safety of tocilizumab in patients with rheumatoid arthritis have been evaluated in a comprehensive phase 3 program. Patients from these randomized trials could receive tocilizumab treatment in open-label extension trials. Here, the long-term safety profile of tocilizumab, using pooled data from all of these trials, is reported. Methods: Cumulative safety data (as of February 6, 2009) from five core phase 3 trials, two ongoing extension trials, and one clinical pharmacology study were analyzed. Two patient populations were evaluated: an all-control population (n = 4,199), which included all patients randomly assigned in the placebo-controlled portions of the five core studies, and an all-exposed population (n = 4,009), which included patients from any of the eight studies who received at least one dose of tocilizumab. Results: Total exposure to tocilizumab was 8,580 patient years (PY), and total duration of observation was 9,414 PY. Overall adverse event (AE) and serious AE (SAE) rates were 278.2/100 PY and 14.4/100 PY, respectively. These events included serious infections (4.7/100 PY), opportunistic infections (0.23/100 PY), gastrointestinal perforations (0.28/100 PY), malignancy (1.1/100 PY), myocardial infarction (0.25/100 PY), and stroke (0.19/100 PY). The rates of SAEs and serious infections were stable over time; no increase with prolonged exposure was noted. Conclusions: The longer-term safety profile of tocilizumab (mean treatment duration, 2.4 years) is consistent with that observed in the phase 3 studies (duration up to 1 year).

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Metadata

Authors
Schiff, M. H., Kremer, J. M., Jahreis, A., Vernon, E., Isaacs, J. D., & van Vollenhoven, R. F.
Venue
Arthritis Research & Therapy
Published
2011-09-01
Volume
13
Issue
5
Pages
R141-R141
ISSN
1478-6354 (ISSN-L)
OpenAlex
W2049400198
Cited by
367
References
3
FWCI
15.82
Type
journal article
Language
en
Open access
gold

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