Description
Enfortumab vedotin-ejfv injection is used to treat urothelial cancer (bladder cancer) that has spread or cannot be removed by surgery. This medicine is used in combination with pembrolizumab. It is also used alone in patients who have tried other cancer medicines (eg, immunotherapy medicine, platinum-containing cancer medicine) or in patients who are not able to receive a cancer medicine that contains cisplatin and have received one or more prior treatments.
This medicine is to be given only by or under the supervision of your doctor.
This product is available in the following dosage forms:
- Powder for Solution
Before Using
In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For this medicine, the following should be considered:
Allergies
Tell your doctor if you have ever had any unusual or allergic reaction to this medicine or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.
Pediatric
Appropriate studies have not been performed on the relationship of age to the effects of enfortumab vedotin-ejfv injection in the pediatric population. Safety and efficacy have not been established.
Geriatric
Appropriate studies performed to date have not demonstrated geriatric-specific problems that would limit the usefulness of enfortumab vedotin-ejfv injection in the elderly.
Breastfeeding
There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.
Drug Interactions
Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are receiving this medicine, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.
Using this medicine with any of the following medicines is not recommended. Your doctor may decide not to treat you with this medication or change some of the other medicines you take.
- Bacillus of Calmette and Guerin Vaccine, Live
- Dengue Tetravalent Vaccine, Live
- Measles Virus Vaccine, Live
- Mumps Virus Vaccine, Live
- Rubella Virus Vaccine, Live
- Smallpox Monkeypox Vaccine
- Typhoid Vaccine
- Varicella Virus Vaccine
- Yellow Fever Vaccine
Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.
- Adagrasib
- Adenovirus Vaccine Type 4, Live
- Adenovirus Vaccine Type 7, Live
- Boceprevir
- Cholera Vaccine
- Clarithromycin
- Cobicistat
- Ebola Zaire Vaccine, Live
- Indinavir
- Influenza Virus Vaccine, Live
- Itraconazole
- Ketoconazole
- Lonafarnib
- Mifepristone
- Nefazodone
- Nelfinavir
- Ritonavir
- Rotavirus Vaccine, Live
- Telaprevir
- Telithromycin
- Tucatinib
Other Interactions
Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.
Other Medical Problems
The presence of other medical problems may affect the use of this medicine. Make sure you tell your doctor if you have any other medical problems, especially:
- Diabetes or
- Eye problems (eg, dry eyes, keratitis) or
- Hyperglycemia (high blood sugar) or
- Peripheral neuropathy (nerve problem)—Use with caution. May make these conditions worse.
- Liver disease, moderate or severe—Use with caution. The effects may be increased because of slower removal of the medicine from the body.
Proper Use
Medicines used to treat cancer are very strong and can have many side effects. Before receiving this medicine, make sure you understand all the risks and benefits. It is important for you to work closely with your doctor during your treatment.
A nurse or other trained health professional will give you this medicine in a medical facility. It is given through a needle placed into one of your veins. It must be given slowly, so the needle will have to remain in place for at least 30 minutes. The infusion will be given on Days 1, 8, and 15 of a 28-day cycle.
This medicine comes with a patient information leaflet. Read and follow the instructions carefully. Ask your doctor if you have any questions.
Missed Dose
This medicine needs to be given on a fixed schedule. If you miss a dose or forget to use your medicine, call your doctor or pharmacist for instructions.
Precautions
It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly. Blood tests may be needed to check for unwanted effects.
Receiving this medicine while you are pregnant can harm your unborn baby. If you are a woman who can get pregnant, your doctor may do tests to make sure you are not pregnant before starting treatment. Use an effective form of birth control to keep from getting pregnant during treatment and for at least 2 months after your last dose. Males who are taking this medicine, with female partners who can become pregnant, must use effective birth control during and for at least 4 months after the last dose of this medicine. If you think you have become pregnant while using the medicine, tell your doctor right away.
If you plan to have children, talk with your doctor before using this medicine. Some men using this medicine have become infertile (unable to have children).
Serious skin reactions (eg, Stevens-Johnson syndrome, toxic epidermal necrolysis) can occur with this medicine. Check with your doctor right away if you have blistering, peeling, or loosening of the skin, chills, cough, diarrhea, itching, joint or muscle pain, red irritated eyes, red skin lesions often with a purple center, sore throat, sores, ulcers, or white spots in the mouth or on the lips, or unusual tiredness or weakness.
This medicine may affect blood sugar levels. If you notice a change in the results of your blood or urine sugar tests or if you have any questions, check with your doctor.
This medicine may cause lung or breathing problems (eg, pneumonitis, interstitial lung disease). Check with your doctor right away if you have chest pain, chills, cough, fever, general feeling of discomfort or illness, thickening of bronchial secretions, or trouble breathing.
Check with your doctor right away if you are having burning, numbness, tingling, or painful sensations, weakness in the arms, hands, legs, or feet, or unsteadiness. These could be symptoms of a condition called peripheral neuropathy.
Check with your doctor immediately if blurred vision, difficulty in reading, dry eyes, or any other change in vision occurs during or after treatment. Your doctor may want you to have your eyes checked by an ophthalmologist (eye doctor).
Tell your doctor if you have pain, redness, or swelling at the infusion site after receiving this medicine.
Do not take other medicines unless they have been discussed with your doctor. This includes prescription or nonprescription (over-the-counter [OTC]) medicines and herbal or vitamin supplements.
Side Effects
Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.
Check with your doctor or nurse immediately if any of the following side effects occur:
More common
- Blurred vision
- burning, dry, or itching eyes
- burning, numbness, tingling, or painful sensations
- discharge, excessive tearing
- dry eyes
- dry mouth
- eye redness, irritation, or pain
- flushed, dry skin
- fruit-like breath odor
- increased hunger
- increased thirst
- increased urination
- lack or loss of strength
- nausea
- rash with flat lesions or small raised lesions on the skin
- redness, pain, swelling of the eye, eyelid, or inner lining of the eyelid
- stomach pain
- sweating
- trouble breathing
- unexplained weight loss
- unsteadiness or awkwardness
- unusual tiredness or weakness
- vomiting
- weakness in the arms, hands, legs, or feet
Less common
- Chest pain
- chills
- cough
- fever
- general feeling of discomfort or illness
- thickening of bronchial secretions
Incidence not known
- Blistering, peeling, or loosening of the skin
- diarrhea
- itching
- joint or muscle pain
- red irritated eyes
- red skin lesions, often with a purple center
- redness, tenderness, itching, burning, or peeling of the skin
- sore throat
- sores, ulcers, or white spots in the mouth or on the lips
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
More common
- Change in taste
- cracks in the skin
- decreased appetite
- dry skin
- hair loss or thinning of the hair
- loss of heat from the body
- loss of taste
- nausea
- painful blisters on the trunk of the body
- red, swollen skin redness, swelling, or pain of the skin
- scaling of the skin on the hands and feet
- skin blisters
- tingling of the hands and feet
- ulceration of the skin
- vomiting
Less common
- Pain, redness, or swelling at the injection site
Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.
Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
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