The purpose of this study is to assess the safety, pharmacokinetics and pharmacodynamics of single and multiple intramuscular doses of Uricase-PEG 20
Uricase is an enzyme (found in most mammals but not humans) that converts poorly soluble uric acid into highly soluble allantoin. Because humans lack uricase, they are prone to develop elevated levels of uric acid, which can form crystals in the joints and soft tissues. In those which chronically elevated uric acid, gout may develop. In the setting of acute rises in uric acid, seen for example in tumor lysis syndrome, uric acid crystals can damage the renal tubules. Uricase-PEG 20 is a recombinant uricase conjugated with multiple PEG molecules designed to prolong the half-life and decrease the immunogenicity of uricase. This study will characterize the safety, pharmacokinetics and pharmacodynamics of intramuscular Uricase-PEG 20, the anticipated route of administration to be used in future clinical development in gout.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
28
Intramuscular injection of Uricase-PEG 20 without premedication
MRA Clinical Research
Miami, Florida, United States
RECRUITINGAltoona Center for Clinical Research
Duncansville, Pennsylvania, United States
RECRUITINGSafety (assessment of signs and symptoms and clinical laboratory measurements following administration of Uricase-PEG 20, graded according to the Common Toxicity Criteria for Rheumatology, version 2.0)
Time frame: Up to 35 days after dosing
Pharmacokinetics (Uricase-PEG 20 serum concentration)
Time frame: Up to 35 days after dosing
Pharmacodynamics (plasma uric acid concentration)
Time frame: Up to 35 days after dosing
Immunogenicity
Time frame: Up to 35 days after dosing
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