Table 2.

Overview of adverse events (AE) pooled by treatment received up to Week 104 (safety population). Multiple occurrences of the same AE in one patient were counted once.

Placebo-MTX, n = 3924 mg/kg Tocilizumab-MTX, n = 597*8 mg/kg Tocilizumab-MTX, n = 983
Median duration on study, yrs0.540.921.08
Total patient-yrs of treatment284.81521.901320.41
All AE, n (per 100 PY exposure to trial treatment)716 (251.4)1439 (275.7)3481 (263.6)
All serious AE, n (per 100 PY exposure to trial treatment)31 (10.9)63 (12.1)150 (11.4)
AE that led to withdrawal, n (per 100 PY exposure to trial treatment)12 (4.2)44 (8.4)97 (7.3)
AE that led to dose interruption, n (per 100 PY exposure to trial treatment)58 (20.4)160 (30.7)429 (32.5)
Deaths, n†† (per 100 PY exposure to trial treatment)1 (0.35)1 (0.19)8 (0.61)
  • * Includes 146 non-switch patients and 451 switch patients.

  • Includes 532 non-switch patients and 451 switch patients.

  • †† Causes of death were Wegener’s granulomatosis (placebo); pulmonary embolism (4 mg/kg tocilizumab-MTX); and gastroesophageal cancer, metastatic malignant melanoma, metastatic lung adenocarcinoma, cardiomyopathy, cerebral hemorrhage, gastrointestinal infection, bronchopneumonia, and sepsis (8 mg/kg tocilizumab-MTX). MTX: methotrexate.