Asparaginase Erwinia chrysanthemi (Erwinaze)

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General information

Class/mechanism: Depletes plasma asparagine by catalyzing the deamidation of asparagine to aspartic acid and ammonia, selectively killing leukemic cells which are unable to synthesize asparagine due to a lack of asparagine synthetase.[1][2][3]
Route: IM
Extravasation: n/a

For conciseness and simplicity, currently will focus on treatment regimens and not list information such as: renal/hepatic dose adjustments, metabolism (including CYP450), excretion, monitoring parameters (although this will be considered for checklists), or manufacturer. Instead, for the most current information, please refer to your preferred pharmacopeias such as Micromedex, Lexicomp, Medscape, UpToDate (courtesy of Lexicomp), or the prescribing information.[1]

Diseases for which it is used

Patient drug information

History of changes in FDA indication

History of changes in PMDA indication

  • 2016-12-19: Initial approval for the treatment of acute leukemia (including blast crisis of chronic leukemia) and malignant lymphoma (only for patients who experienced hypersensitivity to L-asparaginase preparations).

Also known as

  • Generic names: crisantaspasum, crisantaspase, Erwinia L-asparginase, krisantaspaasi, krisantaspas
  • Brand names: Erwinase, Erwinaze


  1. COG AALL07P2: Salzer WL, Asselin B, Supko JG, Devidas M, Kaiser NA, Plourde P, Winick NJ, Reaman GH, Raetz E, Carroll WL, Hunger SP. Erwinia asparaginase achieves therapeutic activity after pegaspargase allergy: a report from the Children's Oncology Group. Blood. 2013 Jul 25;122(4):507-14. Epub 2013 Jun 5. link to original article link to PMC article PubMed NCT00537030