ELSPAR
Rylaze is an asparagine-specific enzyme indicated for use as a component of a multi-agent chemotherapeutic regimen. It is approved for the treatment of adult and pediatric patients, aged one month and older, with acute lymphoblastic leukemia (ALL) or lymphoblastic lymphoma (LBL). This medication serves as a therapeutic option for patients who have developed hypersensitivity to E. coli-derived asparaginase.
How ELSPAR Works
This drug is a recombinant enzyme that catalyzes the conversion of the amino acid L-asparagine into aspartic acid and ammonia. This action results in the depletion of plasma asparagine, which leukemic cells require for survival. Because these malignant cells have low expression of asparagine synthetase, they lack the ability to synthesize their own asparagine and die when the exogenous supply is removed.
Details
- Status
- Prescription
- First Approved
- 1978-01-10
- Routes
- N/A
- Dosage Forms
- VIAL
ELSPAR Approval History
What ELSPAR Treats
3 indicationsELSPAR is approved for 3 conditions since its original approval in 1978. These indications span multiple therapeutic areas including oncology, immunology, and more.
- Acute Lymphoblastic Leukemia
- Lymphoblastic Lymphoma
- Hypersensitivity
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Active Pipeline
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Key Completed Trials
Completed studies with published results, ranked by significance
Trial Timeline
Full development history with FDA approval milestones
Understanding FDA Approval Types
| Count | Type | What it means |
|---|---|---|
| - | ORIG | Original approval - drug first enters market |
| - | SUPPL - Efficacy | New indication (new disease/condition approved) |
| - | SUPPL - Labeling | Label text changes (warnings, dosing updates) |
| - | SUPPL - Manufacturing | Production changes (new facility) |
| - | SUPPL - Chemistry | Formulation changes (new dosage strength) |
Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.
ELSPAR FDA Label Details
ProIndications & Usage
FDA Label (PDF)RYLAZE is indicated as a component of a multi-agent chemotherapeutic regimen for the treatment of acute lymphoblastic leukemia (ALL) and lymphoblastic lymphoma (LBL) in adult and pediatric patients 1 month or older who have developed hypersensitivity to E. coli -derived asparaginase. RYLAZE is an asparagine specific enzyme indicated as a component of a multi-agent chemotherapeutic regimen for the treatment of acute lymphoblastic leukemia (ALL) and lymphoblastic lymphoma (LBL) in adult and pediatric patients 1 month or older who have developed hypersensitivity to E. coli -derived asparaginase.
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Data Sources
Data sourced from official FDA and NIH databases. Click links to verify on original sources.