Author Interviews, Gout, Rheumatology / 14.06.2020
Uncontrolled Gout: Adding Methotrexate May Allow Patients to Receive Full Course of Krystexxa (Pegloticase)
MedicalResearch.com Interview with:
Brian LaMoreaux, M.D., M.S.
Medical Director, Medical Affairs
Horizon Therapeutics
MedicalResearch.com: What is the background for this study?
Response: Pegloticase is an infused biologic approved to treat uncontrolled gout. The drug is highly effective, but patients can develop anti-drug antibodies that may accelerate clearance of pegloticase from the circulation. Randomized clinical trials have shown that 42% of patients treated with bi-weekly pegloticase had a serum uric acid (sUA) below 6.0 mg/dl at 3 and 6 months. Mild-to-moderate immunomodulation has been shown to lower the prevalence of anti-drug antibody formation in patients with other autoimmune diseases (rheumatoid arthritis, Crohn’s disease, juvenile idiopathic arthritis). Case reports and case series in the literature suggest that low to-moderate doses of methotrexate or azathioprine may also decrease anti-drug antibody formation in uncontrolled gout patients treated with pegloticase.
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