Resources & FAQs

Information to help you better understand UDENYCA and biosimilars

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Learn about administering treatment with the UDENYCA autoinjector

For complete administration instructions, please see the autoinjector Instructions for Use.

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Learn about receiving treatment with UDENYCA ONBODY^™

For complete administration instructions, refer to the UDENYCA on-body injector Instructions for Use.

Un resumen de UDENYCA de nuestro Folleto Para Pacientes en Español

Lea un resumen del Folleto Para Pacientes sobre UDENYCA en Español.

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Información de Prescripción en Español

Lea información importante sobre UDENYCA, incluido qué es, cómo usarlo, y más.

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Get a better understanding of biosimilars

Learn more about biosimilars with this FDA factsheet.

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Frequently asked questions about UDENYCA and biosimilars

What is UDENYCA?

UDENYCA is a prescription medicine used to help reduce the chance of infection due to a low white blood cell count, in people with certain types of cancer (non-myeloid), who receive anti-cancer medicines (chemotherapy) that can cause fever and low blood cell count.

What are biosimilars?

Biosimilars are FDA-approved biologic medications that are as safe and effective as the original biologics (known as the reference product). Biosimilars have no clinically meaningful differences from the reference product. This means that there is no compromise in safety and effectiveness of the biosimilar when compared to the reference product. Biosimilars introduce competition into the marketplace and can lower the cost of treatment.

Why does chemotherapy cause low white blood cell counts?

Chemotherapy works by targeting cancerous cells. It can also affect and lower healthy cell counts, including the white blood cells that fight infections.

Who should not take UDENYCA?

Do not take UDENYCA if you have had a serious allergic reaction to human G-CSFs, such as pegfilgrastim or filgrastim products.

What should I tell my healthcare provider before taking UDENYCA?

Before you receive UDENYCA, tell your healthcare provider about all of your medical conditions, including if you have a sickle cell disorder, have kidney problems, are pregnant or plan to become pregnant (it is not known if UDENYCA will harm your unborn baby), are breastfeeding or plan to breastfeed (it is not known if UDENYCA passes into your breast milk).

Tell your healthcare provider about all of the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.

What are the most common side effects of UDENYCA?

The most common side effects of UDENYCA are pain in the bones, arms, and legs. These are not all the possible side effects of UDENYCA. Talk with your doctor about any other side effects. Be sure to review the Patient Information for more side effect information.

What are the different ways I can take UDENYCA?

UDENYCA provides 3 administration options, so your doctor can prescribe the one that meets your individual needs:

The UDENYCA prefilled autoinjector

Easy to use self-administration from the comfort of your home

Learn more about the prefilled autoinjector

The UDENYCA on-body injector

Automatic on-the-go injection

Learn more about the on-body injector

The UDENYCA prefilled syringe

Administered in-office by your care team

Learn more about the prefilled syringe

Do I return to my doctor’s office the day after chemotherapy?

UDENYCA offers 3 options for administration. Depending on the administration your doctor prescribes, you may need to return to the office or hospital the day after chemotherapy to receive UDENYCA.

The UDENYCA prefilled syringe is typically administered in your doctor's office by your healthcare team

The UDENYCA autoinjector is typically administered in the comfort of your home, but may also be given by your provider in their office

The UDENYCA on-body injector is set up by your healthcare team the day you receive chemo, and automatically delivers treatment approximately 27 hours later

Do not take UDENYCA if you have had a serious allergic reaction to pegfilgrastim or filgrastim products.

What are possible side effects of UDENYCA?

UDENYCA may cause serious side effects, including:

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Spleen rupture: Your spleen may become enlarged and can rupture. A ruptured spleen can cause death. Call your healthcare provider right away if you have pain in the left upper stomach area or your left shoulder.
A serious lung problem called Acute Respiratory Distress Syndrome (ARDS): Call your healthcare provider or get emergency care right away if you have shortness of breath with or without a fever, trouble breathing, or a fast rate of breathing.
Serious allergic reactions: UDENYCA can cause serious allergic reactions. These reactions can cause a rash over your whole body, shortness of breath, wheezing, dizziness, swelling around your mouth or eyes, fast heart rate, and sweating. If you have any of these symptoms, stop using UDENYCA and call your healthcare provider or get emergency medical help right away.
Sickle cell crises: You may have a serious sickle cell crisis if you have a sickle cell disorder and receive UDENYCA. Serious sickle cell crises have happened in people with sickle cell disorders receiving pegfilgrastim that has sometimes led to death. Call your healthcare provider right away if you have symptoms of sickle cell crisis such as pain or difficulty breathing.
Kidney injury (glomerulonephritis): UDENYCA can cause kidney injury. Call your healthcare provider right away if you develop any of the following symptoms:
- Swelling of your face or ankles
- Blood in your urine or dark colored urine
- You urinate less than usual
Increased white blood cell count (leukocytosis): Your healthcare provider will check your blood during treatment with UDENYCA.
Decreased platelet count (thrombocytopenia): Your healthcare provider will check your blood during treatment with UDENYCA. Tell your healthcare provider if you have unusual bleeding or bruising during treatment with UDENYCA. This could be a sign of decreased platelet counts, which may reduce the ability of your blood to clot.
Capillary Leak Syndrome: UDENYCA can cause fluid to leak from blood vessels into your body’s tissues. This condition is called “Capillary Leak Syndrome” (CLS). CLS can quickly cause you to have symptoms that may become life-threatening. Get emergency medical help right away if you develop any of the following symptoms:
- Swelling or puffiness and are urinating less than usual
- Trouble breathing
- Swelling of your stomach-area (abdomen) and feeling of fullness
- Dizziness or feeling faint
- A general feeling of tiredness
Myelodysplastic syndrome and acute myeloid leukemia: If you have breast cancer or lung cancer, when UDENYCA is used with chemotherapy and radiation therapy, or with radiation therapy alone, you may have an increased risk of developing a precancerous blood condition called myelodysplastic syndrome (MDS) or a blood cancer called acute myeloid leukemia (AML). Symptoms of MDS and AML may include tiredness, fever, and easy bruising or bleeding. Call your healthcare provider if you develop these symptoms during treatment with UDENYCA.
Inflammation of the aorta (aortitis): Inflammation of the aorta (the large blood vessel that transports blood from the heart to the body) has been reported in patients who received pegfilgrastim. Symptoms may include fever, abdominal pain, feeling tired, and back pain. Call your healthcare provider if you experience these symptoms.
Bone Imaging (Nuclear Imaging): The formation of certain blood cells may increase and can be associated with short term changes in bone imaging. Your doctor should consider this when interpreting bone imaging results.
Allergies to Acrylics (UDENYCA ONBODY only): The on-body injector (OBI) for UDENYCA uses acrylic adhesive. If you have had reactions to acrylic adhesives, use of this product may result in a significant reaction.

The most common side effects of UDENYCA are pain in the bones, arms, and legs.

These are not all the possible side effects of UDENYCA. Call your healthcare provider for medical advice about side effects. To report SUSPECTED ADVERSE REACTIONS, contact Coherus BioSciences at 1-800-4-UDENYCA (1-800-483-3692) or notify the FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Please read the Patient Information and the Prescribing Information for UDENYCA.

Coherus Solutions, UDENYCA Solutions, and UDENYCA ONBODY are trademarks and UDENYCA is a registered trademark of Coherus Biosciences, Inc.

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