What is BALVERSA™ (erdafitinib)?
BALVERSA™ is a prescription medicine used to treat adults with bladder cancer (urothelial cancer) that has spread or cannot be removed by surgery:
- which has a certain type of abnormal “FGFR” gene, and
- who have tried at least one other chemotherapy medicine that contains platinum, and it did not work or is no longer working.
Your healthcare provider will test your cancer for certain types of abnormal FGFR genes and make sure that BALVERSA™ is right for you.
It is not known if BALVERSA™ is safe and effective in children.
Important Safety Information
Before taking BALVERSA™, tell your healthcare provider about all of your medical conditions, including if you:
- have vision or eye problems.
- are pregnant or plan to become pregnant. BALVERSA™ can harm your unborn baby. You should not become pregnant during treatment with BALVERSA™.
Females who can become pregnant:
Males with female partners who can become pregnant:
- Your healthcare provider may do a pregnancy test before you start treatment with BALVERSA™.
- You should use effective birth control during treatment and for 1 month after the last dose of BALVERSA™. Talk to your healthcare provider about birth control methods that may be right for you.
- Tell your healthcare provider right away if you become pregnant or think you may be pregnant.
- You should use effective birth control when sexually active during treatment with BALVERSA™ and for 1 month after the last dose.
- are breastfeeding or plan to breastfeed. Do not breastfeed during treatment and for 1 month after the last dose of BALVERSA™.
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 BALVERSA™?
BALVERSA™ may cause serious side effects, including:
- Eye problems. Eye problems are common with BALVERSA™ but can also be serious. Eye problems include dry or inflamed eyes, inflamed cornea (front part of the eye), and disorders of the retina, an internal part of the eye. Tell your healthcare provider right away if you develop blurred vision, loss of vision, or other visual changes. You should use artificial tear substitutes, hydrating or lubricating eye gels, or ointments at least every 2 hours during waking hours to help prevent dry eyes. During treatment with BALVERSA™, your healthcare provider will send you to see an eye specialist.
- High phosphate levels in the blood (hyperphosphatemia). Hyperphosphatemia is common with BALVERSA™ but can also be serious. Your healthcare provider will check your blood phosphate level between 14 and 21 days after starting treatment with BALVERSA™, and then monthly, and may change your dose if needed.
The most common side effects of BALVERSA™ include:
- mouth sores
- feeling tired
- change in kidney function
- dry mouth
- nails separate from the bed or poor formation of the nail
- change in liver function
- low salt (sodium) levels
- decreased appetite
- change in sense of taste
- low red blood cells (anemia)
- dry skin
- dry eyes
- hair loss
- redness, swelling, peeling or tenderness, mainly on the hands or feet (‘hand-foot syndrome’)
- stomach (abdominal) pain
- muscle pain
Tell your healthcare provider right away if you develop any nail or skin problems including nails separating from the nail bed, nail pain, nail bleeding, breaking of the nails, color or texture changes in your nails, infected skin around the nail, an itchy skin rash, dry skin, or cracks in the skin.
BALVERSA™ may affect fertility in females who are able to become pregnant. Talk to your healthcare provider if this is a concern for you.
These are not all possible side effects of BALVERSA™. For more information, ask your healthcare provider or pharmacist.
Call your healthcare provider for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.
Keep BALVERSA™ out of the reach of children.
General information about the safe and effective use of BALVERSA™.
Medicines are sometimes prescribed for purposes other than those listed in Patient Information leaflets. Do not use BALVERSA™ for a condition for which it was not prescribed. Do not give BALVERSA™ to other people, even if they have the same symptoms that you have. It may harm them. If you would like more information, talk with your healthcare provider. You can ask your healthcare provider for information about BALVERSA™ that is written for healthcare professionals.
Please click here to see full BALVERSA™ Prescribing Information.