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Clinical Trial, Phase I
Journal Article
Research Support, Non-U.S. Gov't
Pharmacokinetics and pharmacodynamics of pegloticase in patients with end-stage renal failure receiving hemodialysis.
Clinical Nephrology 2015 May
AIMS: Phase 3 trial data indicate that treatment of chronic tophaceous gout with pegloticase, a recombinant uricase conjugated to polyethylene glycol, does not reduce estimated glomerular filtration rate in chronic kidney disease (CKD) patients and that pegloticase therapeutics are independent of CKD stages 1 - 4. We determined the pharmacokinetics/pharmacodynamics of pegloticase after a single-dose in non-gout subjects with stage 5 CKD receiving hemodialysis.
METHODS: In this open-label phase 1 study, 12 subjects received a single intravenous dose of pegloticase 8 mg 3 hours prior to hemodialysis. Blood samples for determination of serum pegloticase concentrations and serum uric acid (SUA) levels were collected immediately predose and at regular intervals before, during, and after hemodialysis.
RESULTS: Mean serum pegloticase concentrations remained stable and were unaffected by dialysis sessions. Mean SUA fell to undetectable levels within 3 hours and remained undetected for up to 72 hours postdose.
CONCLUSION: Our findings indicate no significant effect of hemodialysis on either the stability of serum pegloticase concentrations after a single dose or the capacity of pegloticase to lower SUA. No new safety signals were detected. Administration of pegloticase in patients with comorbid chronic tophaceous gout and endstage renal failure requiring hemodialysis appears feasible.
METHODS: In this open-label phase 1 study, 12 subjects received a single intravenous dose of pegloticase 8 mg 3 hours prior to hemodialysis. Blood samples for determination of serum pegloticase concentrations and serum uric acid (SUA) levels were collected immediately predose and at regular intervals before, during, and after hemodialysis.
RESULTS: Mean serum pegloticase concentrations remained stable and were unaffected by dialysis sessions. Mean SUA fell to undetectable levels within 3 hours and remained undetected for up to 72 hours postdose.
CONCLUSION: Our findings indicate no significant effect of hemodialysis on either the stability of serum pegloticase concentrations after a single dose or the capacity of pegloticase to lower SUA. No new safety signals were detected. Administration of pegloticase in patients with comorbid chronic tophaceous gout and endstage renal failure requiring hemodialysis appears feasible.
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