WHAT TO EXPECT WITH BIZENGRI®

BIZENGRI is usually given once every 2 weeks

A healthcare provider in a healthcare setting (doctor’s office or infusion clinic) will give you the medicine directly into your vein (intravenously), usually over 4 hours. Your healthcare provider will decide how many treatments you will need.

750 mg IVa

every 2 weeks.

750 mg IVa

every 2 weeks.

You will receive the infusion over a

4-hour period.

You will receive the infusion over a 4-hour period.

You will be watched closely for any signs of a reaction when you receive the medicine and for at least an hour following the first infusion and as needed.

a IV, intravenous.

Before receiving BIZENGRI

Tell your healthcare provider about all your medical conditions, including if you:

  • Have lung or breathing problems other than your lung cancer.
  • Have or have had any heart problems.
  • Are breastfeeding or plan to breastfeed. It is not known if BIZENGRI passes into your breast milk. Do not breastfeed during treatment and for 2 months after your last dose of BIZENGRI.

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

Your healthcare provider will check your heart function before starting treatment with BIZENGRI.

There is a risk for certain infusion-related reactions with BIZENGRI. To help minimize these risks, you will need to take specific medicines before you receive BIZENGRI and as needed during your treatment.

Your healthcare provider will give you the following medicines before you receive BIZENGRI:

Corticosteroid medicine
(ie, dexamethasone)

This medicine is optional after the first dose.

Fever reducer medicine
(ie, acetaminophen)

Allergy medicine
(ie, dexchlorpheniramine)

What are the possible side effects of BIZENGRI?

BIZENGRI can cause serious side effects, including:

Infusion-related, allergic, and anaphylatic reactions

BIZENGRI may cause serious infusion-related and allergic reactions that can be life threatening. Infusion-related reactions are also common during BIZENGRI treatment.

Before each BIZENGRI infusion, your healthcare provider will give you medicines to help reduce your chance of getting infusion-related reactions. Your healthcare provider will monitor you for signs and symptoms during your infusion and for at least 1 hour after your first infusion and as needed.
 

Tell your healthcare provider right away if you develop any of the following signs or symptoms during or after your BIZENGRI infusion:

  • Chills/shaking
  • Nausea, vomiting, or diarrhea
  • Fever
  • Cough
  • Sudden swelling of your face, tongue, throat, or trouble swallowing
  • Throat tightness or discomfort 
  • Itching or rash
  • Shortness of breath or wheezing
  • Chest discomfort
  • Feeling lightheaded
  • Dizziness
  • Back or neck pain
  • Feeling of numbness or tingling

Your healthcare provider may delay your treatment, slow the infusion rate, or completely stop your treatment with BIZENGRI if you develop severe side effects.

Lung problems. BIZENGRI may cause serious lung problems that may be life threatening. If you develop lung problems, your healthcare provider may treat you with corticosteroid medicines. Tell your healthcare provider right away if you develop any new or worsening symptoms of lung problems, including:

  • Trouble breathing
  • Shortness of breath
  • Cough
  • Fever

Heart problems that may affect your heart’s ability to pump blood. BIZENGRI may cause serious and life-threatening heart problems that may lead to death. Your healthcare provider will check your heart function before you start treatment with BIZENGRI and as needed during your treatment. Tell your healthcare provider right away if you develop any new or worsening symptoms of heart problems, including:

  • Shortness of breath
  • Coughing
  • Tiredness
  • Swelling of your feet, ankles, or legs
  • Irregular heartbeat
  • Sudden weight gain
  • Dizziness or feeling light-headed
  • Loss of consciousness

Harm to your unborn baby. Tell your healthcare provider right away if you become pregnant or think you might be pregnant during treatment with BIZENGRI.

Your healthcare provider will check you for these side effects during your treatment with BIZENGRI and may delay your treatment, slow the infusion rate, or completely stop your treatment with BIZENGRI if you develop severe side effects.

The most common side effects of BIZENGRI include:
  • Diarrhea
  • Muscle or bone pain
  • Tiredness
  • Nausea
  • Shortness of breath
  • Rash
  • Constipation
  • Vomiting
  • Stomach-area (abdominal) pain
  • Swelling of your breast, face, ankles, or legs
The most common severe abnormal blood test results with BIZENGRI include:
  • Increased blood levels of liver enzymes and bilirubin
  • Decreased red blood cell counts and platelet counts
  • Decreased blood level of sodium, magnesium, and phosphate
  • Increase in the time that it takes your blood to clot

These are not all of the possible side effects of BIZENGRI.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

Need help getting started with BIZENGRI?

Explore support resources

IMPORTANT SAFETY INFORMATION

What is the most important information I should know about BIZENGRI?

BIZENGRI may cause serious side effects, including:

  • Infusion-related, allergic and anaphylactic reactions. BIZENGRI may cause serious infusion-related and allergic reactions that can be life-threatening. Infusion-related reactions are also common during BIZENGRI treatment. Before each BIZENGRI infusion, your healthcare provider will give you medicines to help reduce your chance of getting infusion-related reactions. Your healthcare provider will monitor you for signs and symptoms during your infusion and for at least 1 hour after your first infusion and as needed. Tell your healthcare provider right away if you develop any of the following symptoms during or after your BIZENGRI infusion:
    • chills or shaking
    • nausea, vomiting, or diarrhea
    • fever
    • cough
    • sudden swelling of your face, tongue, throat, or troubled swallowing
    • throat tightness or discomfort
    • itching or rash
    • shortness of breath or wheezing
    • chest discomfort
    • feeling light-headed
    • dizziness
    • back or neck pain
    • feeling of numbness or tingling
  • Lung problems. BIZENGRI may cause serious lung problems that may be life-threatening. If you develop lung problems, your healthcare provider may treat you with corticosteroid medicines. Tell your healthcare provider right away if you develop any new or worsening symptoms of lung problems, including:
    • trouble breathing
    • shortness of breath
    • cough
    • fever
  • Heart problems that may affect your heart’s ability to pump blood. BIZENGRI may cause serious and life-threatening heart problems that may lead to death. Your healthcare provider will check your heart function before you start treatment with BIZENGRI and as needed during your treatment. Tell your healthcare provider right away if you develop any new or worsening symptoms of heart problems, including:
    • shortness of breath
    • coughing
    • tiredness
    • swelling of your feet, ankles or legs
    • irregular heartbeat
    • sudden weight gain
    • dizziness or feeling light-headed
    • loss of consciousness

Harm to your unborn baby. Tell your healthcare provider right away if you become pregnant or think you might be pregnant during treatment with BIZENGRI.

Before receiving BIZENGRI, tell your healthcare provider about all your medical conditions, including if you:

  • have lung or breathing problems other than your lung cancer.
  • have or have had any heart problems.
  • are breastfeeding or plan to breastfeed. It is not known if BIZENGRI passes into your breast milk. Do not breastfeed during treatment and for 2 months after your last dose of BIZENGRI.

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

What are the possible side effects of BIZENGRI?

BIZENGRI may cause serious side effects, including:

  • See “What is the most important information I should know about BIZENGRI?”

The most common side effects of BIZENGRI include:

  • diarrhea
  • muscle or bone pain
  • tiredness
  • nausea
  • shortness of breath
  • rash
  • constipation
  • vomiting
  • stomach-area (abdominal) pain
  • swelling of your breast, face, ankles or legs

The most common severe abnormal blood test results with BIZENGRI include:

  • increased blood levels of liver enzymes and bilirubin
  • decreased red blood cell counts and platelet counts
  • decreased blood level of sodium, magnesium, and phosphate
  • increase in the time that it takes your blood to clot

These are not all of the possible side effects of BIZENGRI.

Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Please see full Prescribing Information, including BOXED WARNING.

What is BIZENGRI?

BIZENGRI is a prescription medicine used to treat adults who have: 

  • lung cancer called non-small cell lung cancer (NSCLC):
    • that has a neuregulin 1 (NRG1) gene fusion and cannot be removed by surgery or has spread to other parts of the body (advanced unresectable or metastatic), and
    • whose disease has worsened on or after prior cancer treatment.
  • pancreatic cancer called pancreatic adenocarcinoma:
    • that has a neuregulin 1 (NRG1) gene fusion and cannot be removed by surgery or has spread to other parts of the body (advanced unresectable or metastatic), and
    • whose disease has worsened on or after prior cancer treatment.

It is not known if BIZENGRI is safe and effective in children.

Please see full Prescribing Information, including BOXED WARNING.

Contact Us

For BIZENGRI product inquiries:
For BIZENGRI patient support:
  • 9 AM to 5 PM ET, Monday-Friday
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  • BIZENGRI® is a registered trademark of Merus N.V.
  • PARTNER THERAPEUTICS and are registered trademarks of Partner Therapeutics, Inc.
  • © 2025 Partner Therapeutics, Inc. US-BEN-2500011 03/25

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