PMID- 21078627 OWN - NLM STAT- MEDLINE DCOM- 20120221 LR - 20220321 IS - 1462-0332 (Electronic) IS - 1462-0324 (Linking) VI - 50 IP - 3 DP - 2011 Mar TI - Risk of adverse events including serious infections in rheumatoid arthritis patients treated with tocilizumab: a systematic literature review and meta-analysis of randomized controlled trials. PG - 552-62 LID - 10.1093/rheumatology/keq343 [doi] AB - OBJECTIVE: To assess the risk of adverse events (AEs) in patients with RA treated with tocilizumab, an IL-6 receptor antibody, in published randomized controlled trials (RCTs). METHODS: A systematic literature search was conducted using the Cochrane library, PUBMED and EMBASE for all RCTs (of the use of tocilizumab for RA) until September 2009. Fixed effect meta-analyses were conducted to compare the incidence of AEs after treatment with tocilizumab 8 and 4 mg/kg in combination with MTX, and 8 mg/kg tocilizumab monotherapy, with controls. Pooled summary odds ratios (ORs) were calculated using the Mantel-Haenszel method. RESULTS: Six trials were analysed (four trials included 8 mg/kg tocilizumab and MTX combination therapy, three of which also assessed the 4 mg/kg dose). Three studies assessed tocilizumab monotherapy at 8 mg/kg. Pooled ORs revealed statistical significance for an increased risk of AEs in the 8 mg/kg combination group compared with controls (OR = 1.53; 95% CI 1.26, 1.86). The risk of infection was significantly higher in the 8 mg/kg combination group compared with controls (OR = 1.30; 95% CI 1.07, 1.58). No increased incidence of malignancy, tuberculosis reactivation or hepatitis was seen. CONCLUSION: Tocilizumab in combination with MTX as a treatment for RA is associated with a small but significantly increased risk of AEs, which is comparable with that of other biologics. Vigilance for untoward effects is, therefore, imperative in any patient treated with these immuno-suppressive agents. FAU - Campbell, Laura AU - Campbell L AD - Department of Medicine, Clinical School, University of Cambridge, Cambridge CB2 0QQ, UK. FAU - Chen, Chen AU - Chen C FAU - Bhagat, Shweta S AU - Bhagat SS FAU - Parker, Richard A AU - Parker RA FAU - Ostor, Andrew J K AU - Ostor AJ LA - eng PT - Journal Article PT - Meta-Analysis PT - Review PT - Systematic Review DEP - 20101114 PL - England TA - Rheumatology (Oxford) JT - Rheumatology (Oxford, England) JID - 100883501 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Antirheumatic Agents) RN - I031V2H011 (tocilizumab) RN - YL5FZ2Y5U1 (Methotrexate) SB - IM MH - Antibodies, Monoclonal, Humanized/administration & dosage/*adverse effects MH - Antirheumatic Agents/administration & dosage/*adverse effects MH - Arthritis, Rheumatoid/*drug therapy MH - Drug Therapy, Combination MH - Female MH - Humans MH - Male MH - Methotrexate/administration & dosage/adverse effects MH - Middle Aged MH - Randomized Controlled Trials as Topic MH - Risk Assessment MH - Risk Factors MH - Treatment Outcome EDAT- 2010/11/17 06:00 MHDA- 2012/02/22 06:00 CRDT- 2010/11/17 06:00 PHST- 2010/11/17 06:00 [entrez] PHST- 2010/11/17 06:00 [pubmed] PHST- 2012/02/22 06:00 [medline] AID - keq343 [pii] AID - 10.1093/rheumatology/keq343 [doi] PST - ppublish SO - Rheumatology (Oxford). 2011 Mar;50(3):552-62. doi: 10.1093/rheumatology/keq343. Epub 2010 Nov 14.