Per-protocol populationTocilizumab subcutaneous 162 mg/week (n=16)Placebo (n=17)
Protocol definition*
 Patients who relapsed, n (%)7 (43.8)11 (64.7)
 Treatment duration, weeks, median21.0012.86
 Time to relapse,† weeks, median (95% CI)NE (13.3 to NE)12.1 (10.7 to 14.0)
 HR (95.41 % CI); p value‡0.34 (0.11 to 1.00); p=0.0345
 Estimated relapse-free rate at week 24, % (95% CI)†51.7 (25.3 to 78.0)16.7 (0.0 to 37.5)
  • *Two or more of five signs of relapse present: objective systemic symptoms, subjective systemic symptoms, elevated inflammation markers, vascular signs and symptoms, ischaemic symptoms.

  • †Kaplan-Meier estimate.

  • ‡Stratified by age (<18, 18–<65, ≥65 years).

  • §Two or more of four signs of relapse present: systemic symptoms (objective or subjective), elevated inflammation markers, vascular signs and symptoms and ischaemic symptoms, imaging (enhanced CT or MRI).

  • ¶One or more of four signs of relapse present: objective systemic symptoms, subjective systemic symptoms, vascular signs and symptoms, ischaemic symptoms.

  • ITT, intent-to-treat; NE, not evaluable.