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Data updated: Mar 10, 2026

ONCASPAR

PEGASPARGASE
Oncology Approved 1994-02-01

ONCASPAR (pegaspargase) is an asparagine-specific enzyme indicated for use as a component of a multi-agent chemotherapeutic regimen. It is approved for the treatment of both pediatric and adult patients with acute lymphoblastic leukemia (ALL). The medication is utilized as a first-line therapy or for patients who have developed a hypersensitivity to native forms of L-asparaginase.

Source: FDA Label • SIGMA TAU • Asparagine-specific Enzyme

How ONCASPAR Works

ONCASPAR is an enzyme that catalyzes the conversion of the amino acid L-asparagine into aspartic acid and ammonia. This action results in the depletion of asparagine levels within the plasma. Leukemic cells with low expression of asparagine synthetase are unable to synthesize their own asparagine and must rely on exogenous sources for survival. By depleting these external sources, the drug facilitates the killing of leukemic cells.

Source: FDA Label
3
Indications
--
Phase 3 Trials
32
Years on Market

Details

Status
Prescription
First Approved
1994-02-01
Routes
N/A
Dosage Forms
VIAL

Companies

Active Ingredient: PEGASPARGASE

ONCASPAR Approval History

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What ONCASPAR Treats

2 indications

ONCASPAR is approved for 2 conditions since its original approval in 1994. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Acute Lymphoblastic Leukemia
  • Hypersensitivity
Source: FDA Label

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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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.

ONCASPAR FDA Label Details

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Indications & Usage

FDA Label (PDF)

ONCASPAR is an asparagine specific enzyme indicated as a component of a multi-agent chemotherapeutic regimen for treatment of pediatric and adult patients with: First-line acute lymphoblastic leukemia Acute lymphoblastic leukemia and hypersensitivity to asparaginase 1.1 First Line Acute Lymphoblastic Leukemia (ALL) ONCASPAR ® is indicated as a component of a multi-agent chemotherapeutic regimen for the first-line treatment of pediatric and adult patients with ALL. 1.2 Acute Lymphoblastic Leukemia and Hypersensitivity to Asparaginase ONCASPAR is indicated as a component of a multi-agent chemoth...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.