• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor, pharmacist or nurse.
• This medicine has been prescribed for you only. Do not pass it on to others. It may harm them, even if their signs of illness are the same as yours.
• If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. See section 4.

1. What Cotellic is and what it is used for
2. What you need to know before you take Cotellic
3. How to take Cotellic
4. Possible side effects
5. How to store Cotellic
6. Contents of the pack and other information

Cotellic is an anti-cancer medicine that contains the active substance cobimetinib.

Cotellic is used to treat adult patients with a type of skin cancer called melanoma, that has spread to other parts of the body or cannot be removed by surgery.

• It is used in combination with another anti-cancer medicine called vemurafenib.
• It can only be used in patients whose cancer has a change (mutation) in a protein called “BRAF”. Before starting treatment, your doctor will test for this mutation. This change may have led to the development of melanoma.

Cotellic targets a protein called “MEK” that is important in controlling cancer cell growth. When Cotellic is used in combination with vemurafenib (which targets the changed “BRAF” protein), it further slows down or stops the growth of your cancer.

• if you are allergic to cobimetinib or any of the other ingredients of this medicine (listed in section 6).

If you are not sure, talk to your doctor, pharmacist or nurse before taking Cotellic.

Talk to your doctor, pharmacist or nurse before taking Cotellic if you have:

• Bleeding

Cotellic can cause severe bleeding, especially in your brain or stomach (see also “Severe bleeding” in Section 4). Tell your doctor straight away if you have any unusual bleeding or any of these symptoms: headaches, dizziness, feeling weak, blood in the stools or black stools and vomiting blood.

• Eye problems

Cotellic can cause eye problems (see also “Eye (vision) problems” in Section 4). Tell your doctor straight away if you get the following symptoms: blurred vision, distorted vision, partly missing vision, or any other changes to your sight during treatment. Your doctor should examine your eyes if you have any new or worsening problems with your sight while you are taking Cotellic.

• Heart problems

Cotellic can lower the amount of blood pumped by your heart (see also “Heart problems” in Section 4). Your doctor should do tests before and during your treatment with Cotellic to check how well your heart can pump blood. Tell your doctor straight away if it feels like your heart is pounding, racing or beating unevenly, or if you experience dizziness, lightheadedness, shortness of breath, tiredness, or swelling in the legs.

• Liver problems

Cotellic can increase the amount of some liver enzymes in your blood during treatment. Your doctor will do blood tests to check these amounts and monitor how well your liver is working.

• Muscle problems

Cotellic can cause increased levels of creatine phosphokinase, an enzyme that is found mainly in the muscle, heart, and brain. This can be a sign of muscle damage (rhabdomyolysis) (see also “Muscle problems” in Section 4). Your doctor will do blood tests to monitor for this. Tell your doctor straight away if you get any of these symptoms: muscle aches, muscle spasms, weakness, or dark- or red-coloured urine.

• Diarrhoea

Tell your doctor straight away if you get diarrhoea. Severe diarrhoea can cause loss of body fluid (dehydration). Follow your doctor’s instructions for what to do to help prevent or treat diarrhoea.

Cotellic is not recommended for children and adolescents. The safety and efficacy of Cotellic in people younger than 18 years old have not been established.

Tell your doctor or pharmacist if you are taking, have recently taken or might take any other medicines. This is because Cotellic can affect the way some other medicines work. Also, some other medicines can affect the way Cotellic works.

Talk to your doctor before taking Cotellic if you are taking:

Medicine Purpose of the medicine

itraconazole, clarithromycin, erythromycin, telithromycin, voriconazole, rifampicin, posaconazole, fluconazole, miconazole for some fungal and bacterial infections

ritonavir, cobicistat, lopinavir, delavirdine, amprenavir, fosamprenavir for HIV infection

telaprevir for hepatitis C

nefadozone for depression

amiodarone for an uneven heartbeat

diltiazem, verapamil for high blood pressure

imatinib for cancer

carbamazepine, phenytoin for fits (seizures)

St John’s Wort a herbal medicine, used to treat depression. This is available without prescription.

Avoid taking Cotellic with grapefruit juice. This is because it could increase the amount of Cotellic in your blood.

If you are pregnant or breast-feeding, think you might be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine.

• Cotellic is not recommended during pregnancy - although the effects of Cotellic have not been studied in pregnant women, it may cause permanent harm or birth defects to an unborn baby.
• If you become pregnant during treatment with Cotellic or in the 3 months after your last dose, tell your doctor straight away.
• It is not known if Cotellic passes into breast milk. Your doctor will discuss with you the benefits and risks of taking Cotellic, if you are breast-feeding.

Women of childbearing potential should use two effective methods of contraception, such as a condom or other barrier method (with spermicide, if available) during treatment and for at least 3 months after treatment has finished. Ask your doctor about the best contraception for you.

Cotellic can affect your ability to drive or use machines. Avoid driving or using machines if you have problems with your vision or other problems that might affect your ability e.g. if you feel dizzy or tired. Talk to your doctor if you are not sure.

The tablets contain lactose (a type of sugar). If you have been told by your doctor that you have an intolerance to some sugars, talk to your doctor before taking this medicine.

This medicine contains less than 1 mmol sodium (23 mg) per tablet, that is to say essentially ‘sodium-free’.

The recommended dose is 3 tablets (a total of 60 mg) once a day.

• Take the tablets every day for 21 days (called a “treatment period”).
• After the 21 days, do not take any Cotellic tablets for 7 days. During this 7 day break in Cotellic treatment, you should keep taking vemurafenib as told by your doctor.
• Start your next Cotellic 21 day treatment period after the 7 day break.
• If you get side effects, your doctor may decide to lower your dose, stop treatment temporarily or permanently. Always take Cotellic exactly as your doctor or pharmacist has told you.

• Swallow the tablets whole with water.
• Cotellic can be taken with or without food.

If you are sick (vomit) after taking Cotellic, do not take an extra dose of Cotellic on that day. Continue to take Cotellic as normal, the next day.

If you take more Cotellic than you should, talk to a doctor straight away. Take the medicine package and this leaflet with you.

• If it is more than 12 hours before your next dose, take the missed dose as soon as you remember.
• If it is less than 12 hours before your next dose, skip the missed dose. Then take the next dose at the usual time.
• Do not take a double dose to make up for a missed dose.

It is important to keep taking Cotellic for as long as your doctor prescribes it.

Tell your doctor straight away if you notice any of the side effects listed below or if these get worse during treatment.

Severe bleeding (common: may affect up to 1 in 10 people)

Cotellic can cause severe bleeding, especially in your brain or stomach. Depending on the area of the bleeding, symptoms may include:

• headaches, dizziness, or weakness
• vomiting blood
• abdominal pain
• red or black coloured stools.

Eye (vision) problems (very common: may affect more than 1 in 10 people)

Cotellic can cause eye problems. Some of these eye problems may be a result of “serous retinopathy” (a build-up of fluid under the retina in the eye). Symptoms of serous retinopathy include:

• blurred vision
• distorted vision
• partly missing vision
• any other changes to your sight.

Heart problems (common: may affect up to 1 in 10 people)

Cotellic can lower the amount of blood pumped by your heart. Symptoms may include:

• feeling dizzy
• feeling light-headed
• feeling short of breath
• feeling tired
• feeling like your heart is pounding, racing or beating unevenly
• swelling in the legs.

Muscle problems (uncommon: may affect up to 1 in 100 people)

Cotellic can result in the breakdown of muscle (rhabdomyolysis), symptoms may include:

• muscle aches
• muscle spasms and weakness
• dark- or red-coloured urine.

Diarrhoea (very common: may affect more than 1 in 10 people)

Tell your doctor straight away if you get diarrhoea and follow your doctor’s instructions for what to do to help prevent or treat diarrhoea.

Tell your doctor, pharmacist or nurse if you notice any of the following side effects:

Very common (may affect more than 1 in 10 people)

• increased skin sensitivity to sunlight
• skin rash
• feeling sick (nausea)
• fever
• chills
• increased liver enzymes (shown in blood tests)
• abnormal blood test results related to creatine phosphokinase, an enzyme found mainly in heart, brain and skeletal muscle
• vomiting
• skin rash with a flat discoloured area or raised bump like acne
• high blood pressure
• anaemia (a low level of red blood cells)
• bleeding
• abnormal thickening of the skin
• swelling usually in the legs (oedema peripheral)
• itchy or dry skin
• Sore mouth or mouth ulcers, inflammation of mucous membranes (stomatitis)

Common (may affect up to 1 in 10 people)

• some types of skin cancer such as basal cell carcinoma, cutaneous squamous cell carcinoma and keratoacanthoma
• dehydration, when your body does not have enough fluid
• decreased levels of phosphate or sodium (shown in blood tests)
• increased sugar level (shown in blood tests)
• increased liver pigment (called “bilirubin”) in the blood. Signs include yellowing of the skin or eyes
• inflammation of the lungs that may cause difficulty breathing, and can be life-threatening (called “pneumonitis”).

If you get any side effects, talk to your doctor, pharmacist or nurse. This includes any possible side effects not listed in this leaflet. You can also report side effects directly (see details below). By reporting side effects you can help provide more information on the safety of this medicine.

United Kingdom

or search for MHRA Yellow Card in the Google Play or Apple App Store

• The active substance is cobimetinib. Each film-coated tablet contains cobimetinib hemifumarate equivalent to 20 mg cobimetinib.
• The other ingredients are (see Section 2 “Cotellic contains lactose and sodium”):
  • lactose monohydrate, microcrystalline cellulose, croscarmellose sodium, and magnesium stearate in the tablet core; and
  • polyvinyl alcohol, titanium dioxide, macrogol and talc in the film-coating.

Cotellic film-coated tablets are white, round with “COB” debossed on one side. One pack size is available: 63 tablets (3 blisters of 21 tablets).