Table 1

Summary of AEs during the OLE study

All treated patients (N=149)
AEs in the OLE studyN (%)
Subjects with any AE146 (98)
Subjects with any serious AE51 (34)
Subjects with serious AEs considered related to pegloticase13 (9)
Discontinuations due to AE11 (7)
Most common AEs (incidence >10%)
 Gout flare106 (71)
 Infusion-related reaction65 (44)
 Arthralgia29 (20)
 Upper respiratory tract infection27 (18)
 Pain in extremity26 (17)
 Back pain25 (17)
 Diarrhoea22 (15)
 Peripheral oedema21 (14)
 Urinary tract infection20 (13)
 Nausea17 (11)
 Headache16 (11)
 Fatigue15 (10)
 Sinusitis15 (10)
 Nasopharyngitis15 (10)
  • AE, adverse event; OLE, open-label extension.