Pertuzumab

Pertuzumab is a targeted prescription medicine used to treat specific types of breast cancer, particularly those that are HER2-positive. It is designed to slow down or stop the growth of cancer cells by targeting specific proteins on their surface. This treatment is always used together with other anti-cancer medicines rather than on its own. Depending on your stage of breast cancer, it is commonly given with trastuzumab and chemotherapy such as docetaxel, or with trastuzumab and other chemotherapy medicines chosen by your oncologist to provide the best possible results.

This medicine is injected as an intravenous infusion by a healthcare professional, typically in a hospital or clinic setting. It is given on a consistent, scheduled cycle to maintain its effectiveness in your body. Adopting a nutritious diet, drinking plenty of fluids, and managing stress can help support your overall well-being during this treatment.

While this treatment is highly targeted, some patients may experience common side effects such as diarrhoea, fatigue, or temporary hair loss. It is crucial to monitor how you feel and contact your healthcare provider immediately if you experience serious symptoms like shortness of breath, swelling in your legs, or signs of an infection.

Do not take this if you have had a severe allergic reaction to this medicine or any of its ingredients in the past. Before starting, talk to your doctor if you have a history of heart conditions, liver damage, or if you have previously received radiation therapy to your chest area.

This medicine can interact with other treatments that affect your heart, so it is vital to share a complete list of your medications with your doctor. If you are pregnant, planning to become pregnant, or breastfeeding, you should not use this medicine due to the risk of severe harm to the baby. Older adults should also discuss their specific health risks with their doctor before starting.

When used as directed as part of your treatment plan, this medicine may provide the following benefits:

• Targeted Cancer Cell Destruction: Unlike traditional chemotherapy, which affects all rapidly dividing cells, this medicine specifically targets HER2-positive cancer cells. This helps spare healthy cells from unnecessary damage.
• Enhanced Treatment Effectiveness: When used in combination with other anti-HER2 therapies, it provides a dual-blockade effect. This stops cancer cells from growing more effectively than using a single therapy alone.
• Improved Long-Term Outcomes: Clinical studies show that adding this medicine to standard treatment plans helps keep patients cancer-free for longer and improves overall survival rates in advanced cases.

• Follow your doctor’s instructions on the dosage and timing of this medication.
• Pertuzumab will be administered by a nurse or doctor.
• Do not self-administer.

Common Side Effects (Usually mild):

• Diarrhoea or loose stools
• Feeling unusually tired or weak (fatigue)
• Hair thinning or hair loss
• Nausea or vomiting
• Rashes or dry, itchy skin
• Numbness or tingling in the hands or feet
   

Serious Side Effects (Consult your doctor right away):

• Signs of heart problems, including shortness of breath, a persistent cough, swelling in the legs, ankles, or feet, or an irregular heartbeat
• Signs of an allergic or infusion reaction, such as fever, chills, dizziness, hives, or swelling of the face and throat
• Severe or watery diarrhoea that does not stop, which can lead to severe dehydration
• Signs of infection, including a high fever, chills, sore throat, or body aches
• Contact your doctor or seek emergency medical care immediately if you develop severe shortness of breath, chest pain, swelling of the face or throat, a high fever, signs of infection, persistent severe diarrhoea, or swelling in your legs or ankles.