Oncaspar, illustration of injection vial form (not a photo of the actual pack)

Illustrative image.

Oncaspar

Pegaspargase

Prescription required

$3205.00

750 U/ML · 1 vial

BrandBranded medicine· By Servier

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About Oncaspar

Overview

Oncaspar contains pegaspargase, an enzyme medicine supplied as an injection in a vial. It is used with other chemotherapy medicines to treat acute lymphoblastic leukemia (ALL) in children and adults, both as first-line treatment and in patients with hypersensitivity to asparaginase. It is thought to work by lowering the amount of asparagine in the blood, depriving leukemia cells of an amino acid they need to survive.

What it treats

- Acute lymphoblastic leukemia (ALL) in children and adults, as part of a multi-drug chemotherapy regimen for initial treatment or for patients with hypersensitivity to asparaginase.

Safety information

Side effects

The label lists the following among the most common severe side effects: low blood albumin, raised liver enzymes or bilirubin, fever with low levels of infection-fighting white blood cells, high blood fats, high blood sugar, inflammation of the pancreas (pancreatitis), abnormal blood-clotting tests, blood clots, allergic reactions, sepsis and other infections. Serious risks include severe allergic reactions, including anaphylaxis; blood clots; pancreatitis; severe or life-threatening bleeding; and liver toxicity, including hepatic veno-occlusive disease (VOD). These require urgent medical attention. Contact a doctor promptly if you develop abdominal pain, as this needs assessment for pancreatitis. Patients must be observed for one hour after administration for allergic reactions. Blood sugar and liver toxicity also need monitoring. Serious reactions may require Oncaspar to be stopped by the treating team.

When to call your doctor

- Seek medical attention immediately for abdominal pain, which may be a sign of inflammation of the pancreas (pancreatitis). - Seek medical attention immediately for severe bleeding.

If symptoms are severe or getting worse quickly, seek emergency care rather than waiting.

Before taking this medicine

Do not use Oncaspar if you have: • A history of a serious allergic reaction, including anaphylaxis, to Oncaspar or any of its ingredients. • A history of serious blood clots or serious bleeding during previous L-asparaginase treatment. • A history of pancreatitis (inflammation of the pancreas), whether or not related to previous L-asparaginase treatment. • Severe liver impairment. Oncaspar can cause serious allergic reactions, blood clots, pancreatitis, raised blood sugar, bleeding and liver toxicity, including blockage of small veins in the liver. Patients must be observed for 1 hour after administration. Blood sugar and liver toxicity require monitoring, with liver monitoring continuing through recovery from the treatment cycle. Abdominal pain needs assessment for pancreatitis. Oncaspar must be stopped if a serious allergic reaction, a serious blood clot, pancreatitis, severe or life-threatening bleeding, or severe liver toxicity occurs. Severe or life-threatening bleeding also requires assessment and treatment. Do not breastfeed during Oncaspar treatment.

Using Oncaspar

Dosing

Dosing is set by your prescriber. Each health care professional may prescribe medication differently according to a patient's medical history and condition, so follow the directions on your prescription label and speak to your doctor or pharmacist before changing anything.

Storage

Store in the original carton below 25°C, protected from light, unless the pack states refrigeration. Do not freeze. Keep all medicines out of the sight and reach of children.

Clinical information on this page is summarised from the US FDA label ONCASPAR (PEGASPARGASE) INJECTION, SOLUTION [SERVIER PHARMACEUTICALS LLC] (DailyMed, retrieved 19 September 2026).

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