NCT07388498 A Double-blind, Randomized Controlled Trial to Investigate the Efficacy, Safety, and Pharmacokinetics of Pegloticase Administration Via Subcutaneous and Intravenous Routes Both With Methotrexate in Participants With Uncontrolled Gout

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 3 trials are large pivotal studies comparing the treatment to current standard of care or placebo. Your participation directly contributes to the evidence needed for regulatory approval.

This trial targets 270 participants in total. It began in 2026-02-09 with a primary completion date of 2028-05-23.

Brief Summary

The primary objective of this trial is to evaluate the effect of pegloticase 18 mg subcutaneously (SC) every two weeks with methotrexate (MTX) versus pegloticase 8 mg intravenously (IV) every two weeks with MTX on the response rate during Month 6, as measured by the sustained normalization of serum uric acid (sUA) to \< 6 mg/dL for at least 80% of the time during Month 6.

Eligibility Criteria

Inclusion Criteria * Participant has provided informed consent before initiation of any trial-specific activities/procedures. * Age ≥ 18 years or ≥ legal age within the country if it is older than 18 years. * Participants willing and able to comply with the prescribed treatment protocol and evaluations for the duration of the trial. * Participants with uncontrolled gout, as meeting the protocol defined criteria. Exclusion Criteria * Glucose-6-phosphate dehydrogenase deficiency (tested at the screening visit). * Liver transaminase levels (aspartate aminotransferase \[AST\] or alanine aminotransferase \[ALT\]) \> 1.25 x upper limit of normal (ULN) or albumin \< the lower limit of normal (LLN) at the screening visit. * Uncontrolled diabetes mellitus and/or hemoglobin A1c (HbA1c) \> 8%. * Known intolerance to MTX. * Participant received prior treatment with pegloticase, another recombinant uricase (ie, rasburicase or pegadricase), or concomitant therapy with a polyethylene glycol (PEG)-conjugated drug. * A known intolerance to all protocol standard gout flare prophylaxis regimens (ie, participant must be able to tolerate at least 1 of the following: colchicine and/or non-steroidal anti-inflammatory drug and/or low-dose prednisone ≤ 10 mg/day or equivalent dose of other corticosteroid). * Chronic renal impairment defined as estimated glomerular filtration rate (eGFR) based on Modification of Diet in Renal Disease (MDRD) calculations \< 40 mL/min/1.73 m\^2 or currently on dialysis.

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