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urate oxidase

Sanofi · FDA-approved active Small molecule

urate oxidase is a Uricosuric enzyme Small molecule drug developed by Sanofi. It is currently FDA-approved for Tumor lysis syndrome prophylaxis and treatment in patients with hematologic malignancies at high risk of hyperuricemia, Severe hyperuricemia in gout or other conditions. Also known as: rasburicase.

Urate oxidase catalyzes the conversion of uric acid to allantoin, a more soluble compound that is readily excreted in urine.

Urate oxidase catalyzes the conversion of uric acid to allantoin, a more soluble compound that is readily excreted in urine. Used for Tumor lysis syndrome prophylaxis and treatment in patients with hematologic malignancies at high risk of hyperuricemia, Severe hyperuricemia in gout or other conditions.

At a glance

Generic nameurate oxidase
Also known asrasburicase
SponsorSanofi
Drug classUricosuric enzyme
TargetUric acid
ModalitySmall molecule
Therapeutic areaOncology; Rheumatology
PhaseFDA-approved

Mechanism of action

Urate oxidase is a recombinant enzyme that breaks down uric acid by oxidizing it to allantoin, which is approximately 5–10 times more soluble than uric acid. This mechanism rapidly lowers serum and urine uric acid levels, preventing uric acid crystal formation and the complications of tumor lysis syndrome or severe hyperuricemia.

Approved indications

Common side effects

Key clinical trials

Primary sources

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SourceUsed for
ClinicalTrials.govTrial enrolment, design, endpoints, results

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Frequently asked questions about urate oxidase

What is urate oxidase?

urate oxidase is a Uricosuric enzyme drug developed by Sanofi, indicated for Tumor lysis syndrome prophylaxis and treatment in patients with hematologic malignancies at high risk of hyperuricemia, Severe hyperuricemia in gout or other conditions.

How does urate oxidase work?

Urate oxidase catalyzes the conversion of uric acid to allantoin, a more soluble compound that is readily excreted in urine.

What is urate oxidase used for?

urate oxidase is indicated for Tumor lysis syndrome prophylaxis and treatment in patients with hematologic malignancies at high risk of hyperuricemia, Severe hyperuricemia in gout or other conditions.

Who makes urate oxidase?

urate oxidase is developed and marketed by Sanofi (see full Sanofi pipeline at /company/sanofi).

Is urate oxidase also known as anything else?

urate oxidase is also known as rasburicase.

What drug class is urate oxidase in?

urate oxidase belongs to the Uricosuric enzyme class. See all Uricosuric enzyme drugs at /class/uricosuric-enzyme.

What development phase is urate oxidase in?

urate oxidase is FDA-approved (marketed).

What are the side effects of urate oxidase?

Common side effects of urate oxidase include Allergic reactions (including anaphylaxis), Hemolysis, Methemoglobinemia, Infusion-related reactions.

What does urate oxidase target?

urate oxidase targets Uric acid and is a Uricosuric enzyme.

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