Generic Name: cetuximab (se TUX i mab)
Brand Name: Erbitux
What is cetuximab?
Cetuximab is a cancer medicine that interferes with the growth and spread of cancer cells in the body.
Cetuximab is used to treat cancers of the colon and rectum. It is also used to treat head and neck cancer.
Cetuximab is often used in combination with other cancer medicines or radiation treatment.
Cetuximab may also be used for purposes not listed in this medication guide.
What is the most important information I should know about cetuximab?
Some people receiving a cetuximab injection have had a reaction to the infusion (when the medicine is injected into the vein). Tell your caregiver right away if you feel dizzy, feverish, itchy, or short of breath during the injection.
Cetuximab has caused life-threatening side effects in a small number of patients. Your caregivers will watch you closely after you receive each dose of this medicine.
Cetuximab can have long lasting effects on your body. You may need frequent medical tests for a short time after you stop using this medicine.
What should I discuss with my healthcare provider before I receive cetuximab?
You should not use this medicine if you are allergic to cetuximab or to mouse protein.
To make sure cetuximab is safe for you, tell your doctor if you have:
heart rhythm problems;
lung disease or a breathing disorder;
congestive heart failure;
coronary artery disease (clogged arteries); or
an electrolyte imbalance (such as low levels of potassium or magnesium in your blood).
It is not known whether this medicine will harm an unborn baby. Tell your doctor if you are pregnant or plan to become pregnant.
Whether you are a man or a woman, use effective birth control to prevent pregnancy while you are receiving cetuximab, and for at least 6 months after your treatment ends.
You should not breast-feed a baby while you are receiving cetuximab and for at least 60 days after your treatment ends. If you use a breast pump during this time, throw out any milk you collect. Do not feed it to your baby.
How is cetuximab given?
Cetuximab is injected into a vein through an IV. You will receive this injection in a clinic or hospital setting. Cetuximab must be given slowly, and the IV infusion can take up to 2 hours to complete. You may be given other medications to prevent certain side effects while you are receiving cetuximab.
Cetuximab is usually given once every week for 6 to 7 weeks or until your body no longer responds to the medication. Follow your doctor's dosing instructions very carefully.
Cetuximab is often used in combination with other cancer medications and/or radiation treatments. You may receive another cancer medicine 1 hour after your cetuximab injection.
If you are also being treated with radiation, you will receive your first cetuximab injection 1 week before your radiation treatment. Later doses are usually given 1 hour before radiation treatments.
Cetuximab has caused life-threatening side effects in a small number of patients. After each cetuximab infusion, your caregivers will watch you closely to make sure you do not have any serious side effects.
To make sure this medication is helping your condition and not causing harmful effects, your blood will need to be tested often. Your cancer treatments may be delayed based on the results of these tests.
Cetuximab can have long lasting effects on your body. You may need to have blood tests for several weeks after your cetuximab treatment has ended. Do not miss any follow-up visits to your doctor.
What happens if I miss a dose?
Call your doctor for instructions if you miss an appointment for your cetuximab infusion.
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 cetuximab?
Avoid exposure to sunlight or tanning beds while you are receiving cetuximab and for at least 2 months after your treatment ends. Cetuximab can make you sunburn more easily. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.
Cetuximab 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 people receiving a cetuximab injection have had a reaction to the infusion (when the medicine is injected into the vein). Tell your caregiver right away if you feel short of breath, weak or dizzy, nauseated, itchy, or have wheezing, noisy breathing, or a hoarse voice during the injection.
Call your doctor at once if you have:
an acne-like skin rash or any severe skin rash;
redness, swelling, or puffiness under your skin;
eye pain or redness, puffy eyelids, drainage or crusting in your eyes, vision problems, or increased sensitivity to light;
sudden chest pain or discomfort, wheezing, dry cough, feeling short of breath, coughing up blood;
chest pain spreading to your jaw or shoulder;
a light-headed feeling, like you might pass out, slow heart rate, weak pulse, slow breathing;
symptoms of infection--fever, flu symptoms, mouth and throat ulcers, rapid heart rate, rapid and shallow breathing, fainting;
symptoms of an electrolyte imbalance--leg cramps, constipation, irregular heartbeats, fluttering in your chest, extreme thirst, numbness or tingling, vision problems, muscle pain or weakness;
kidney problems--little or no urinating; painful or difficult urination; swelling in your feet or ankles; or
severe skin reaction--fever, sore throat, swelling in your face or tongue, burning in your eyes, skin pain followed by a red or purple skin rash that spreads (especially in the face or upper body) and causes blistering and peeling.
Common side effects may include:
mild itching or rash;
changes in your fingernails or toenails;
dry, cracked, or swollen skin;
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.
See also: Side effects (in more detail)
Cetuximab dosing information
Usual Adult Dose for Colorectal Cancer:
Initial Dose: 400 mg/m2 administered as a 2 hour intravenous infusion (maximum infusion rate 5 mL/min)
Maintenance Dose: 250 mg/m2 infused over 1 hour (maximum infusion rate 5 mL/min) once a week
If given in combination with FOLFIRI, the cetuximab infusion should be completed one hour prior to FOLFIRI.
Usual Adult Dose for Squamous Cell Carcinoma:
Note: In combination with radiation therapy, cetuximab is approved by the FDA for the initial treatment of locally or regionally advanced squamous cell carcinoma of the head and neck. In combination with platinum based therapy with 5-FU, cetuximab is indicated for the first-line treatment of patients with recurrent locoregional disease or metastatic squamous cell carcinoma of the head and neck. As a single agent, cetuximab is indicated for the treatment of patients with recurrent or metastatic squamous cell carcinoma of the head and neck for whom prior platinum based therapy has failed.
As a Part of Combination Therapy:
Initial Loading Dose: 400 mg/m2 as a 120 minute intravenous infusion (maximum infusion rate 5 mL/min) one week prior to initiation of a course of radiation therapy or on the day of initiation of platinum based therapy with 5-FU.
Weekly Maintenance Dose: 250 mg/m2 infused over 60 minutes (maximum infusion rate 5 mL/min) weekly for the duration of radiation therapy (6 to 7 weeks) or until disease progression or unacceptable toxicity when administered in combination with platinum based therapy with 5-FU. Complete cetuximab administration 1 hour prior to radiation therapy or platinum based therapy with 5-FU.
Single Agent Therapy:
Initial Dose: 400 mg/m2 as a 120 minute intravenous infusion.
Weekly Maintenance Dose: 250 mg/m2, as a 60 minute intravenous infusion, weekly until disease progression or unacceptable toxicity occurs.
What other drugs will affect cetuximab?
There may be other drugs that can interact with cetuximab. Tell your doctor about all medications you use. This includes prescription, over-the-counter, vitamin, and herbal products. Do not start a new medication without telling your doctor.
More about cetuximab
- Other brands: Erbitux
Related treatment guides
Where can I get more information?
- Your doctor or pharmacist can provide more information about cetuximab.
- 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.
- Disclaimer: Every effort has been made to ensure that the information provided by Cerner Multum, Inc. ('Multum') is accurate, up-to-date, and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. Multum information has been compiled for use by healthcare practitioners and consumers in the United States and therefore Multum does not warrant that uses outside of the United States are appropriate, unless specifically indicated otherwise. Multum's drug information does not endorse drugs, diagnose patients or recommend therapy. Multum's drug information is an informational resource designed to assist licensed healthcare practitioners in caring for their patients and/or to serve consumers viewing this service as a supplement to, and not a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug or drug combination is safe, effective or appropriate for any given patient. Multum does not assume any responsibility for any aspect of healthcare administered with the aid of information Multum provides. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse or pharmacist.
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