Why is this medication prescribed?
Brigatinib is used to treat a certain type of non-small cell lung cancer (NSCLC) that has spread to other parts of the body in people who have already been treated with crizotinib (Xalkori) and have not improved or worsened. Brigatinib is in a class of medications called kinase inhibitors. It works by blocking the action of an abnormal protein that signals cancer cells to multiply. This helps slow or stop the spread of cancer cells.
How should this medicine be used?
Brigatinib comes as a tablet to take by mouth. It is usually taken with or without food once daily. Take brigatinib at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take brigatinib exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
Swallow the tablets whole; do not chew or crush them.
If you vomit after taking brigatinib, do not take another dose. Continue your regular dosing schedule.
Your doctor may start you on a low dose of brigatinib and increase your dose once after 7 days of treatment.
Your doctor may need to temporarily or permanently stop your treatment or decrease your dose of brigatinib or other medications that you are taking, depending on the side effects that you experience during your treatment. Talk to your doctor about how you are feeling during your treatment. Do not stop taking brigatinib without talking to your doctor.
Ask your pharmacist or doctor for a copy of the manufacturer's information for the patient.
Other uses for this medicine
This medication may be prescribed for other uses; ask your doctor or pharmacist for more information.
What special precautions should I follow?
Before taking brigatinib,
- tell your doctor and pharmacist if you are allergic to brigatinib, any other medications, or any of the ingredients in brigatinib tablets. Ask your pharmacist for a list of the ingredients.
- tell your doctor and pharmacist what other prescription and nonprescription medications, vitamins, nutritional supplements, and herbal products you are taking or plan to take. Be sure to mention any of the following: antifungals such as itraconazole (Onmel, Sporanox), ketoconazole (Nizoral), posaconazole (Noxafil), and voriconazole (Vfend); boceprevir (no longer available in U.S.); carbamazepine (Equetro, Tegretol, Teril); clarithromycin (Biaxin, in Prevpac); cobicistat (Tybost, in Stribild, others); conivaptan; medications for high blood pressure; indinavir (Crixivan); lopinavir (in Kaletra); nelfinavir (Viracept); phenytoin (Dilantin, Phenytek); rifampin (Rifadin, Rimactane, in Rifamate, in Rifater); ritonavir (Norvir); or saquinavir (Fortovase, Invirase). Your doctor may need to change the doses of your medications or monitor you carefully for side effects.
- tell your doctor what herbal products you are taking, especially St. John's wort.
- tell your doctor if you have or have ever had high blood pressure; a slow heartbeat; or diabetes or other blood sugar problems.
- tell your doctor if you are pregnant or plan to become pregnant. Brigatinib may interfere with the action of hormonal contraceptives (birth control pills, patches, rings, implants, or injections), so you should not use these as your only method of birth control during your treatment. You must use a non-hormonal birth control such as a barrier method (device that blocks sperm from entering the uterus such as a condom or a diaphragm). Ask your doctor to help you choose a method of birth control that will work for you. If you are female, you will need to use non-hormonal birth control during your treatment and for 4 months after your final dose. If you are male, you and your female partner should use birth control during your treatment and continue to use birth control for 3 months after your final dose. Brigatinib may harm the fetus.
- tell your doctor if you are breastfeeding. You should not breastfeed during your treatment with brigatinib and for up to 1 week after your final dose.
- you should know that this medication may decrease fertility in men. Talk to your doctor about the risks of taking brigatinib.
What special dietary instructions should I follow?
Avoid eating grapefruit and drinking grapefruit juice while taking brigatinib.
What should I do if I forget a dose?
Skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
If you miss taking brigatinib for 14 days or longer, talk to your doctor before starting to take it again. You will probably have to restart taking it at a lower dose.
What side effects can this medication cause?
Brigatinib may cause side effects. Tell your doctor if any of these symptoms are severe or do not go away:
- numbness, pain, tingling, or burning feeling in the feet or hands
- back or joint pain
- loss of appetite
- difficulty falling asleep or staying asleep
Some side effects can be serious. If you experience any of these symptoms, call your doctor immediately or get emergency medical treatment:
- shortness of breath or difficulty breathing
- chest pain
- cough with or without mucus
- headache, dizziness, lightheadedness, or feeling faint
- blurred or double vision
- seeing flashes of light
- light hurting your eyes
- seeing ''floaters'' or small specks
- extreme thirst, frequent urination, extreme hunger, blurred vision, or weakness
- upper stomach pain that may spread to the back or get worse with eating; weight loss; or nausea
- slow or irregular heartbeat
- muscle pain, spasms, tenderness, or weakness
Brigatinib may cause other side effects. Call your doctor if you have any unusual problems while taking this medication.
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online (http://www.fda.gov/Safety/MedWatch) or by phone (1-800-332-1088).
What should I know about storage and disposal of this medication?
Keep this medication in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom).
Unneeded medications should be disposed of in special ways to ensure that pets, children, and other people cannot consume them. However, you should not flush this medication down the toilet. Instead, the best way to dispose of your medication is through a medicine take-back program. Talk to your pharmacist or contact your local garbage/recycling department to learn about take-back programs in your community. See the FDA's Safe Disposal of Medicines website (http://goo.gl/c4Rm4p) for more information if you do not have access to a take-back program.
In case of emergency/overdose
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
What other information should I know?
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests before and during your treatment to check your body's response to brigatinib.
Do not let anyone else take your medication. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.