What is Asparlas (calaspargase pegol - mknl), and how does it work?
Generic drug: calaspargase pegol - mknl
Brand name: Asparlas
Asparlas (calaspargase pegol - mknl) is an asparagine specific enzyme indicated as a component of a multi-agent chemotherapeutic regimen for the treatment of acute lymphoblastic leukemia in pediatric and young adult patients age 1 month to 21 years.
What are the side effects of Asparlas?
Common side effects of Asparlas include:
- elevated transaminase,
- bilirubin increased,
- pancreatitis,
- abnormal clotting studies,
- diarrhea,
- hypersensitivity,
- shortness of breath,
- bleeding,
- pneumonia, and
- abnormal heart rate
What is the dosage for Asparlas?
Recommended Dosage
The recommended dose of Asparlas is 2,500 units/m2 given intravenously no more frequently than every 21 days.
Dose Modifications
Monitor patients at least weekly, with bilirubin, transaminases, glucose and clinical examinations until recovery from the cycle of therapy. If an adverse reaction should occur, modify treatment according to Table 1.
Table 1. Dose Modifications
Adverse Reaction | Severity* | Action |
Infusion Reaction or Hypersensitivity Reaction | Grade 1 |
|
Grade 2 |
|
|
Grade 3 to 4 |
|
|
Hemorrhage | Grade 3 to 4 |
|
Pancreatitis | Grades 3 to 4 |
|
Thromboembolism | Uncomplicated deep vein thrombosis |
|
Severe or life-threatening thrombosis |
|
|
Hepatotoxicity | Total bilirubin more than 3 times to no more than 10 times the upper limit of normal |
|
Total bilirubin more than 10 times the upper limit of normal |
|
|
*Grade 1 is mild, grade 2 is moderate, grade 3 is severe, and grade 4 is life-threatening |
Preparation And Administration
Asparlas is a clear and colorless solution. Visually inspect parenteral drug products for particulate matter, cloudiness, or discoloration prior to administration. If any of these are present, discard the vial. Do not administer if Asparlas has been shaken or vigorously agitated, frozen, or stored at room temperature for more than 48 hours.
- Dilute Asparlas in 100 mL of 0.9% Sodium Chloride Injection, USP or 5% Dextrose Injection, USP using sterile/aseptic technique. Discard any unused portion left in a vial.
- After dilution, administer immediately into a running infusion of either 0.9% sodium chloride or 5% dextrose, respectively.
- Administer the dose over a period of 1 hour.
- Do not infuse other drugs through the same intravenous line during administration of Asparlas.
- The diluted solution may be stored for up to 4 hours at room temperature (15°C to 25°C [59°F to 77°F]) or refrigerated at 2°C to 8°C (36°F to 46°F) for up to 24 hours.
- Protect from light. Do not shake or freeze.
Is Asparlas safe to use while pregnant or breastfeeding?
- There are no available data on Asparlas use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage, or adverse maternal or fetal outcomes.
- There are no data on the presence of calaspargase pegol-mknl in human milk, the effects on the breastfed child, or the effects on milk production.
- Because many drugs are excreted in human milk and because of the potential for adverse reactions in a breastfed child, advise lactating women not to breastfeed while receiving Asparlas and for 3 months after the last dose.

QUESTION
What is leukemia? See AnswerSummary
Asparlas (calaspargase pegol - mknl) is an asparagine specific enzyme indicated as a component of a multi-agent chemotherapeutic regimen for the treatment of acute lymphoblastic leukemia in pediatric and young adult patients age 1 month to 21 years. Common side effects of Asparlas include elevated transaminase, bilirubin increased, pancreatitis, abnormal clotting studies, diarrhea, hypersensitivity, shortness of breath, bleeding, pneumonia, and abnormal heart rate.
Multimedia: Slideshows, Images & Quizzes
-
Cancer: Guide to Leukemia
Learn about the common types and stages of leukemia, who gets it, symptoms, tests, treatments, and more. People with blood cancer...
-
Blood Cancer Types: Leukemia, Lymphomas, Myelomas, and More
Types of blood cancers include leukemia, lymphomas, multiple myelomas, and others discussed in this slideshow. Symptoms may...
-
Leukemia Quiz
What do you know about leukemia? Did you know there are different types? What are the symptoms? Take the Leukemia Quiz and test...
Related Disease Conditions
-
Leukemia
Leukemia is a type of cancer of the blood cells in which the growth and development of the blood cells are abnormal. Strictly speaking, leukemia should refer only to cancer of the white blood cells (the leukocytes) but in practice, it can apply to malignancy of any cellular element in the blood or bone marrow, as in red cell leukemia (erythroleukemia).
-
What Is the Life Expectancy of a Person With Leukemia?
Leukemia is a group of cancers of the blood affecting the white blood cells. White blood cells are the infection-fighting cells of the body. In adults, leukemia is most common in people older than 55 years, with the average age of diagnosis being 66 years. It is also one of the most common cancers in children and adults younger than 20 years. The survival rate is higher for younger people.
-
How Does Leukemia Kill?
Leukemia is a cancer of the white blood cells of the bone marrow. Patients with leukemia have an over-production of a particular blood cell type in the body, the white blood cells (cells that fight infection, and provide immunity).
-
Survival Rate for Acute Lymphoblastic Leukemia
The prognosis depends on the type of leukemia, the extent of the disease, age of the patient, and the general condition of the patient. Some patients can go into complete remission. The average five-year survival rate of leukemia is 60-65%.
-
Leukemia: Signs, Symptoms, And Complications
Leukemia results when the genetic material (DNA) of a single cell in the bone marrow transforms, this is called a mutation. A mutated cell does not perform body function, but it eats away the nutrition meant for the normal cells.
-
What Are the Stages of Chronic Lymphocytic Leukemia?
Chronic lymphocytic leukemia is a cancer of the blood and bone marrow. With this type of cancer, the marrow creates too many abnormal lymphocytes. There are five stages of chronic lymphocytic leukemia.
Treatment & Diagnosis
- Leukemia FAQs
- Evolution of Treatment for a Rare Type of Leukemia
- Gleevec and Chronic Myeloid Leukemia
- How Familes Cope with a Leukemia Diagnosis
- Coping with a Bad Disease - Community Counts
- A Family's Leukemia Diary - Coping
- Is Multiple Myeloma the Same as Leukemia?
- Does Folic Acid Prevent Leukemia?
- Can Folic Acid Prevent Leukemia?
- Chronic Myelogenous Leukemia (CML)
Medications & Supplements
Health News
- Attachment Theory: What It Is, Stages & the Different Attachment Styles
- Gentle Parenting: What It Is, Techniques & Discipline
- U.S. Nursing Homes Fail to Report Many Serious Falls, Bedsores: Study
- The Younger You Get Diabetes, the Higher Your Risk for Dementia Later
- FDA Grants Full Approval to Paxlovid to Treat COVID-19
More Health News »
Health Solutions From Our Sponsors

Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.