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Home » Directories » FDA Approved Drugs » Erwinaze (asparaginase Erwinia chrysanthemi)

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Erwinaze (asparaginase Erwinia chrysanthemi)

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    General Information

    Erwinaze (asparaginase Erwinia chrysanthemi) contains an asparaginase specific enzyme derived from Erwinia chrysanthemi. The mechanism of action of Erwinaze thought to be based on the inability of leukemic cells to synthesize asparagine due to lack of asparagine synthetase activity, resulting in cytotoxicity specific for leukemic cells.

    Erwinaze is specifically approved as a component of a multi-agent chemotherapeutic regimen for the treatment of patients with acute lymphoblastic leukemia who have developed hypersensitivity to E. coli-derived asparaginase.

    Erwinaze is supplied as a solution for intramuscular administration. The recommended initial dose of the drug is as follows:
    To substitute for a dose of pegaspargase: 25,000 International Units/m2 administered intramuscularly three times a week (Monday/Wednesday/Friday) for six doses for each planned dose of pegaspargase.
    To substitute for a dose of native E. coli asparaginase: 25,000 International Units/m2 administered intramuscularly for each scheduled dose of native E. coli asparaginase within a treatment.

    Clinical Results

    FDA Approval
    The FDA approval of Erwinaze was based on a single-arm, multi-center, open-label, safety and clinical pharmacology trial. This trial enrolled 58 subjects with ALL who were unable to continue to receive pegaspargase due to hypersensitivity reactions. The subjects received Erwinaze 25,000 International Units/m2 intramuscularly for two weeks (six total doses) as a replacement for each scheduled dose of pegaspargase remaining on their original treatment protocol.The main endpoint was determination of the proportion of patients who achieved a serum trough asparaginase level greater than or equal to 0.1 International Units/ mL. More than 50% of the subjects reached this endpoint at 48 or 72 hours following the third dose.

    Side Effects

    Adverse events associated with the use of Erwinaze may include, but are not limited to, the following:

    • systemic allergic reactions, including anaphylaxis, hypersensitivity and urticaria
    • pancreatitis
    • abnormal transaminases
    • coagulation abnormalities including thrombosis and hemorrhage
    • nausea and vomiting
    • hyperglycemia

    Mechanism of Action

    Erwinaze (asparaginase Erwinia chrysanthemi) contains an asparaginase specific enzyme derived from Erwinia chrysanthemi. Asparaginase Erwinia chrysanthemi catalyzes the deamidation of asparagine to aspartic acid and ammonia, resulting in a reduction in circulating levels of asparagine. The mechanism of action of Erwinaze thought to be based on the inability of leukemic cells to synthesize asparagine due to lack of asparagine synthetase activity, resulting in cytotoxicity specific for leukemic cells that depend on an exogenous source of the amino acid asparagine for their protein metabolism and survival.

    Literature References

    Pieters R, Hunger SP, Boos J, Rizzari C, Silverman L, Baruchel A, Goekbuget N, Schrappe M, Pui CH L-asparaginase treatment in acute lymphoblastic leukemia: a focus on Erwinia asparaginase. Cancer 2011 Jan 15;117(2):238-49

    Raetz EA, Salzer WL Tolerability and efficacy of L-asparaginase therapy in pediatric patients with acute lymphoblastic leukemia. Journal of Pediatric Hematology/Oncology 2010 Oct;32(7):554-63

    Additional Information

    For additional information regarding Erwinaze or acute lymphoblastic leukemia, please visit the Erwinaze web page.

    Company Name: Eusa Pharma
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