Generic name: trastuzumab (tras TOO zoo mab)
Brand name: Herceptin, Herzuma, Kanjinti, Ogivri, Ontruzant, Trazimera
What is Kanjinti?
Kanjinti is sometimes used when the cancer has spread to other parts of the body (metastatic).
Kanjinti may also be used for purposes not listed in this medication guide.
Do not use if you are pregnant. Use effective birth control, and tell your doctor if you become pregnant during treatment.
Kanjinti can cause heart failure, especially if you have heart disease or if you are also receiving certain other cancer medicines.
Some side effects may occur during the injection. Tell your caregivers if you feel dizzy, nauseated, light-headed, weak, short of breath, or if you have a headache, fever, or chills.
Before taking this medicine
Tell your doctor if you have ever had:
Kanjinti can cause heart failure, especially if you have heart disease or if you are also receiving certain other cancer medicines (such as daunorubicin, doxorubicin, epirubicin, or idarubicin).
You may need to have a negative pregnancy test before starting this treatment.
Do not use Kanjinti if you are pregnant. Kanjinti can cause injury or death to the unborn baby. Use effective birth control to prevent pregnancy while you are using this medicine and for at least 7 months after your last dose. Tell your doctor if you become pregnant.
If you become pregnant while using Kanjinti or within 7 months after you stop, your name may be listed on a pregnancy registry to track the effects of trastuzumab on the baby.
It may not be safe to breastfeed while using this medicine and for up to 7 months after your last dose. Ask your doctor about any risk.
How is Kanjinti given?
Your doctor will perform a medical test to make sure Kanjinti is the right medicine to treat your cancer.
Kanjinti is given as an infusion into a vein. A healthcare provider will give you this injection.
Kanjinti is usually given once every week or every 1 to 3 weeks. Follow your doctor's dosing instructions very carefully.
This medicine must be given slowly, and the infusion can take up to 90 minutes to complete.
You may need frequent medical tests to be sure this medicine is not causing harmful effects. Your cancer treatments may be delayed based on the results.
Your heart function may need to be checked before and during treatment with Kanjinti. You may also need heart function testing every 6 months for 2 years after your last dose of this medicine.
Kanjinti is usually given for 52 weeks, or until your body no longer responds to the medication.
What happens if I miss a dose?
Call your doctor for instructions if you miss an appointment for your Kanjinti.
What happens if I overdose?
Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.
What should I avoid while receiving Kanjinti?
Follow your doctor's instructions about any restrictions on food, beverages, or activity.
Kanjinti side effects
Get emergency medical help if you have signs of an allergic reaction: hives; difficult breathing; swelling of your face, lips, tongue, or throat.
Some side effects may occur during the injection, or in the days afterward. Tell your caregiver right away if you feel dizzy, nauseated, itchy, light-headed, weak, short of breath, or if you have a headache, fever, chills, or chest pain.
Call your doctor at once if you have:
new or worsening cough;
a light-headed feeling, like you might pass out;
severe headache, blurred vision, pounding in your neck or ears;
blisters or ulcers in your mouth, red or swollen gums, trouble swallowing;
heart problems--pounding heartbeats, dizziness, swelling in your lower legs, rapid weight gain, feeling short of breath;
low blood cell counts--fever, chills, tiredness, skin sores, easy bruising, unusual bleeding, pale skin, cold hands and feet, feeling light-headed; or
Your cancer treatments may be delayed or permanently discontinued if you have certain side effects.
Common side effects may include:
nausea, diarrhea, weight loss;
trouble sleeping, feeling tired;
low blood cell counts;
fever, chills, cough, or other signs of infection;
altered sense of taste; or
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What other drugs will affect Kanjinti?
Other drugs may affect Kanjinti, including prescription and over-the-counter medicines, vitamins, and herbal products. Tell your doctor about all your current medicines and any medicine you start or stop using.
Kanjinti can have long lasting effects on your heart, especially if you receive other cancer medicines. For at least 7 months after your last dose of trastuzumab, tell any doctor who treats you that you have used Kanjinti.
Frequently asked questions
- How many biosimilars have been approved in the United States?
- How long can you stay on Herceptin and Perjeta?
- How long does Herceptin stay in your body?
- What is Herceptin? Is Herceptin a chemo drug? How does it work?
- What happens after Herceptin treatment?
- How do Herceptin (trastuzumab) and Perjeta (pertuzumab) work together?
- How effective is Herceptin for Breast & Gastric Cancer?
More about Kanjinti (trastuzumab)
- Side Effects
- During Pregnancy or Breastfeeding
- Dosage Information
- Drug Interactions
- Pricing & Coupons
- En Español
- FDA Approval History
Related treatment guides
Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
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