The most common adverse events reported during the studies (defined as occurring in >5% of patients in any patient group up to week 160) included upper respiratory tract infection, nasopharyngitis, nausea, cough, headache, back pain, bronchitis, sinusitis, hypertension, diarrhoea, injection-site erythema, urinary tract infection, fatigue, rash, pharyngitis, influenza, and ALT/AST increased.