Double-blind randomised controlled trial of monoclonal antibody to human tumour necrosis factor in treatment of septic shock


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Abstract

SummaryBackground Despite the availability of potent antibiotics and intensive care, mortality rates from septic shock are 40-70%. We assessed the safety and efficacy of murine monoclonal antibody to human tumour necrosis factor alpha (TNFalpha MAb) in the treatment of septic shock.Methods In a randomised, multicentre, double-blind, placebo-controlled clinical trial in 105 hospitals in the USA and Canada, we randomly assigned 1879 patients a single infusion of 7.5 mg/kg TNFalpha MAb (n=949) or placebo (0.25% human serum albumin n=930). Our main outcome measurement was the rate of all-cause mortality at 28 days.Findings 382 (40.3%) of 948 patients who received TNFalpha MAb and 398 (42.8%) of 930 who received placebo had died at 28 days (95% CI -0.02 to 0.07, p=0.27). We found no association between therapy with TNFalpha MAb and increased rapidity in reversal of initial shock or prevention of subsequent shock. Similarly, baseline plasma interleukin-6 concentrations of more than 1000 pg/mL or detectable circulating TNF concentrations were not associated with improvement in survival after TNFalpha MAb therapy. Coagulopathy but not other organ or system failures, was significantly decreased in the TNFalpha MAb group compared with placebo (day 7, p<0.001; day 28, p=0.005). Serious adverse events were reported in 55.2% of patients given placebo and 54.1% in the TNFalpha MAb group.Interpretation We did not find an improvement in survival after septic shock with TNFalpha MAb.Therapy not solely dependent on TNFalpha blockade may be required to improve survival.

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