BRAFTOVI (encorafenib) and MEKTOVI (binimetinib) may cause serious side effects, including:
Risk of new skin cancers. BRAFTOVI, when used alone or with MEKTOVI, may cause skin cancers called cutaneous squamous cell carcinoma or basal cell carcinoma. Talk to your healthcare provider about your risk for these cancers.
Check your skin and tell your healthcare provider right away about any skin changes, including a:
Your healthcare provider should check your skin before and every 2 months during treatment, and for up to 6 months after you stop treatment to look for any new skin cancers.
Your healthcare provider should also check for cancers that may not occur on the skin. Tell your healthcare provider about any new symptoms that develop during treatment.
Heart problems, including heart failure. Your healthcare provider should check your heart function before and during treatment with MEKTOVI. Call your healthcare provider right away if you have any of the following signs and symptoms of a heart problem:
Blood clots. MEKTOVI can cause blood clots in your arms or legs, which can travel to your lungs and can lead to death. Get medical help right away if you have the following symptoms:
Bleeding problems. BRAFTOVI, when taken with MEKTOVI, can cause serious bleeding problems, including in your stomach or brain, that can lead to death. Call your healthcare provider and get medical help right away if you have any signs of bleeding, including:
Eye problems. MEKTOVI can cause serious eye problems that might lead to blindness. Call your healthcare provider right away if you develop any of these symptoms of eye problems:
Lung or breathing problems. MEKTOVI can cause lung or breathing problems. Tell your healthcare provider if you have any new or worsening symptoms of lung or breathing problems, including:
Liver problems. Your healthcare provider should perform blood tests to check your liver function before and during treatment with MEKTOVI. Tell your healthcare provider if you have any of the following signs and symptoms of a liver problem:
Muscle problems (rhabdomyolysis). MEKTOVI can cause muscle problems that can be severe. MEKTOVI may increase the level of an enzyme in your blood called creatine phosphokinase (CPK) and can be a sign of muscle damage. Your healthcare provider should perform a blood test to check your CPK levels before and during treatment. Tell your healthcare provider right away if you develop any of these symptoms:
Changes in the electrical activity of your heart called QT prolongation. QT prolongation can cause irregular heartbeats that can be life-threatening. Your healthcare provider should do tests before you start taking BRAFTOVI with MEKTOVI and during your treatment to check your body salts (electrolytes). Tell your healthcare provider right away if you feel faint, light-headed, dizzy, or if you feel your heart beating irregularly or fast while taking BRAFTOVI with MEKTOVI. These symptoms may be related to QT prolongation.
Tell your healthcare team if you are pregnant or plan to become pregnant. BRAFTOVI and MEKTOVI can harm your unborn baby. Females who are able to become pregnant should use effective non-hormonal birth control (contraception) during and for at least:
Talk to your healthcare team if you are breastfeeding or plan to breastfeed. It is not known if either treatment passes into your breast milk. Do not breastfeed during treatment with BRAFTOVI and MEKTOVI and for:
BRAFTOVI may cause fertility problems in males. Talk to your healthcare provider if this is a concern for you.
The most common side effects of BRAFTOVI when taken with MEKTOVI, include: fatigue, nausea, diarrhea, vomiting, abdominal pain, and pain or swelling of your joints.
Before taking BRAFTOVI + MEKTOVI, tell your healthcare provider about all of your medical conditions, including if you:
are breastfeeding or plan to breastfeed
Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. BRAFTOVI and certain other medicines can affect each other, causing side effects or affecting how BRAFTOVI or other medicines work. You should also avoid grapefruit products during treatment with BRAFTOVI.
These are not all the possible side effects of BRAFTOVI and MEKTOVI. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088. You may also report side effects to Pfizer Inc. at 1-800-438-1985.
BRAFTOVI and MEKTOVI are prescription medicines used together to treat people with a type of skin cancer called melanoma:
that has a certain type of abnormal “BRAF” gene
BRAFTOVI should not be used to treat people with wild-type BRAF melanoma. Your healthcare provider will perform a test to make sure that BRAFTOVI + MEKTOVI is right for you.
It is not known if BRAFTOVI or MEKTOVI is safe and effective in children.