Rylaze (asparaginase erwinia chrysanthemi) is a chemotherapy medication used to treat children and adults aged 1 month and older with acute lymphoblastic leukemia (ALL) or lymphoblastic lymphoma (LBL). The medication is given as an injection into the muscle (intramuscular, IM) and is typically used alongside other chemotherapy medications. Rylaze (asparaginase erwinia chrysanthemi) is an asparaginase product specifically for people who are allergic to other asparaginase medications, such as Oncaspar (pegaspargase) or Asparlas (calaspargase pegol). But since it doesn’t last as long in the body, it needs to be given more frequently. Some side effects include nausea, muscle pain, and pancreatitis.
Rylaze (asparaginase erwinia chrysanthemi) is an asparagine specific enzyme. It works by targeting asparagine, a nutrient that cancer cells need to survive. By breaking down asparagine, Rylaze (asparaginase erwinia chrysanthemi) prevents cancer cells from using it, which helps stop them from growing and spreading.
The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Contact your healthcare provider immediately if you experience any of the following.
Side effects that you should report to your care team as soon as possible:
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
Yes, Rylaze (asparaginase erwinia chrysanthemi) is considered a chemotherapy medication. Because cancer cells grow faster than normal cells, most chemotherapies work by attacking cells that grow quickly. Rylaze (asparaginase erwinia chrysanthemi) breaks down a specific nutrient that cancer cells need to keep growing. Without that nutrient, cancer cells can’t grow as well.
Yes. In studies, about 27% to 30% of people reported febrile neutropenia. Febrile neutropenia is a condition where a person has both a fever and low number of neutrophils, a type of white blood cell that helps fight infections. Let your oncologist know if you have symptoms such as a fever, tiredness, chills, or a sore throat. You might need treatment with antibiotics.
Yes. Rylaze (asparaginase erwinia chrysanthemi) was approved by the FDA in June 2021 to treat ALL and LBL in children and adults who had a previous allergic reaction to a different asparaginase medication.
Rylaze (asparaginase erwinia chrysanthemi) and Erwinaze (asparaginase erwinia chrysanthemi) are both similar medications used to treat ALL for people who had an allergic reaction to other forms of asparaginase. In the past, there was a shortage for Erwinaze (asparaginase erwinia chrysanthemi), so when the FDA approved Rylaze (asparaginase erwinia chrysanthemi) and it became available, it helped people continue their asparaginase treatment during the shortage and beyond. While Erwinaze (asparaginase erwinia chrysanthemi) is no longer available, Rylaze (asparaginase erwinia chrysanthemi) is. Speak with your oncologist if you have questions about these medications.
Based on animal studies, Rylaze (asparaginase erwinia chrysanthemi) might harm an unborn baby when taken during pregnancy. Because of these risks, anyone who can become pregnant should use non-hormonal birth control while taking Rylaze (asparaginase erwinia chrysanthemi) and for 3 months after the last dose. Your oncologist might have you take a pregnancy test before you start treatment to confirm that you aren’t pregnant. If you become pregnant while taking this medication, let your oncologist know right away.
Rylaze (asparaginase erwinia chrysanthemi) can cause some serious health issues. This risk may be even higher for certain groups. If this worries you, talk to your doctor or pharmacist about other options.
Even though this medication is specifically approved for people who have had allergic reactions in the past to other asparaginase products, you can still develop serious allergic reactions to Rylaze (asparaginase erwinia chrysanthemi), although this happened more when it was given as an infusion into the vein. These reactions can include rash, trouble breathing, facial swelling, hives, itching, or low blood pressure. To help prevent these reactions, you’ll take premedications such as acetaminophen (Tylenol), diphenhydramine (Benadryl), and famotidine (Pepcid) 30 to 60 minutes before each dose. If you have a serious reaction, you likely won’t be able to continue taking this medication
Sometimes, people taking Rylaze (asparaginase erwinia chrysanthemi) developed swelling in their pancreas, also called pancreatitis, which can be life-threatening if not treated right away. Contact your oncologist if you develop symptoms such as fever, nausea and vomiting, and severe stomach pain in the upper belly area. You might need to pause taking this medication while your oncologist looks into it. If they determine that you do have pancreatitis, you might need to stop taking Rylaze (asparaginase erwinia chrysanthemi) altogether.
Rarely, people taking Rylaze (asparaginase erwinia chrysanthemi) have developed blood clots, including stroke and pulmonary embolism. If you have swelling, warm skin, or redness in one arm or one leg, trouble breathing, a sudden and severe headache, or weakness on one side of your body, get medical help right away.
Some people taking Rylaze (asparaginase erwinia chrysanthemi) experienced bleeding, such as bruising and nosebleeds. They have also had changes in lab tests related to blood clotting, which means the body might have trouble stopping bleeds. If you experience bleeding that won’t stop or notice more bruising, let your care team know.
Rylaze (asparaginase erwinia chrysanthemi) can cause serious liver problems, some even life-threatening. Your oncologist will monitor your liver health on a regular basis to make sure this medication is still safe for you to take. If your liver labs are too high, you might need to pause or stop treatment. If you experience symptoms of liver problems such as stomach pain, sudden weight gain, yellowing of the skin, or yellowing around the whites of your eyes, call your oncologist right away.
Your oncologist will calculate your dose of Rylaze (asparaginase erwinia chrysanthemi) based on your body surface area (BSA), taking into account your height and weight.
Rylaze (asparaginase erwinia chrysanthemi) can be given two different ways over 2 or 3 weeks:
Contraindications are specific health conditions or situations in which a person should not take a medication due to safety concerns. If you have any of the following conditions or if any of the following apply to you, let your healthcare provider know because Rylaze (asparaginase erwinia chrysanthemi) will not be safe for you to take.