Comparison between pegloticase and pegadricase Phase II: COMPARE trial [27]

Pegloticase (n = 87)Pegadricase (n = 83)
OriginPorcine and baboon UricaseCandida Utilis
Treatment regimen8 mg every 2 weeks IV0.2 mg/kg pegadricase, 0.15 mg/kg ImmTOR monthly IV
ImmunomodulationMethotrexate 15 mg PO weeklyRapamycin
EfficacyPegadricase did not meet the primary endpoint of statistical superiority SU (serum urate) < 6 mg/dL for at least 80% of the time during months 3 and 6 combined: 59% pegadricase vs 46% pegloticase, P = 0.181
Decrease in mean SU levels compared to pegloticase (P = 0.0033)
AEs n (%)34 (39.1%)45 (54.2%)
        Gout flare20 (23.0%)27 (32.5%)
        infusion-related reaction10 (11.5%)13 (15.7%)
        Headache04 (4.8%)
        Hypertriglyceridemia2 (2.3%)3 (3.6%)
        Aphthous ulcer02 (2.4%)
Pegylationyesyes
Half-life (days)6–143