Summary
- Main use
- Treatment of HER2 positive breast cancer (metastatic and early stage) and reduction of recurrence risk
- Who receives it
- Adults
- Adult administration
- Initial dose of 840 mg should be intravenously infused over 60 minutes, followed by a maintenance dose of 420 mg intravenously infused over 30-60 minutes every 3 weeks. This medication should be administered as an intravenous infusion and must not be administered as a rapid intravenous push or bolus. The first dose should be infused over 60 minutes, and if the patient tolerated the initial infusion well, subsequent doses can be given over 30-60 minutes.
Ingredients
- Importer
- (주)한국로슈
Efficacy & effects
Treatment of HER2 positive breast cancer (metastatic and early stage) and reduction of recurrence risk
- Metastatic breast cancer
- locally recurrent breast cancer
- locally advanced breast cancer
- inflammatory breast cancer
- early-stage breast cancer
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This medication is used for patients with HER2 positive breast cancer. In cases of metastatic breast cancer, it is administered in combination with docetaxel and trastuzumab for those with no prior experience of anti-HER2 treatment or chemotherapy. For early breast cancer patients, trastuzumab and chemotherapy are given together as neoadjuvant therapy to inhibit cancer progression. Additionally, for those at high risk of recurrence, the same combination therapy is implemented post-surgery to prevent recurrence. This prescription is effectively used in the treatment of breast cancer.
How it is given
Adult administration
Initial dose of 840 mg should be intravenously infused over 60 minutes, followed by a maintenance dose of 420 mg intravenously infused over 30-60 minutes every 3 weeks. This medication should be administered as an intravenous infusion and must not be administered as a rapid intravenous push or bolus. The first dose should be infused over 60 minutes, and if the patient tolerated the initial infusion well, subsequent doses can be given over 30-60 minutes.
Precautions
This drug may affect the left ventricular function of the heart, so it is necessary to regularly monitor the left ventricular ejection fraction before and during administration. If there is a significant decline in cardiac function, treatment may be discontinued. When administering this drug for the first time and during maintenance doses, infusion-related reactions may occur, so patients should be closely monitored during the infusion period and for some time afterwards. If severe reactions occur, treatment should be discontinued immediately and appropriate measures taken. This drug can affect the immune system, potentially leading to hematological abnormalities such as febrile neutropenia, so conditions should be monitored periodically through blood tests, etc. Severe allergic reactions such as hypersensitivity or anaphylaxis may occur; therefore, patients should be closely observed during administration and be in a state where emergency treatment is possible. Women who may become pregnant should use effective contraception during and for some time after treatment, and it is safest not to use this drug during pregnancy. Though special dosage adjustments are not necessary for elderly patients or those with impaired kidney or liver function, caution is needed as adequate studies have not been conducted for patients with severe renal or liver impairment. This drug can frequently cause various side effects such as diarrhea, hair loss, nausea, fatigue, and neutropenia, so medical personnel should be consulted if symptoms occur. When administering, the diluted solution must be prepared under sterile conditions, and storage temperature and usage period should be strictly adhered to. Additionally, it should not be mixed with a dextrose solution. Dizziness and other symptoms may occur while driving or operating machinery, so caution is needed. This drug should only be administered under the supervision of qualified healthcare professionals, and any adverse reactions should be reported immediately and appropriate measures taken.
Side effects and when to seek care immediately
Serious side effects
Hives, severe swelling (edema), cold sweat, difficulty breathing, hypersensitivity, anaphylaxis, high fever, severe rash, skin peeling, pain in oral/ocular mucosa, dyspnea, asthma attack, respiratory abnormalities with cough and fever, jaundice (yellowing of skin or eyes), extreme lethargy throughout the body, sudden and very severe headache, thunderclap headache, seizure, confusion of consciousness, visual disturbances, paralysis, significantly reduced urine output, extreme fatigue throughout the body,
Mild side effects
- Diarrhea
- hair loss
- nausea
- fatigue
- neutropenia
- vomiting
- anemia
- leukopenia
- increased tearing
- stomatitis
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- constipation
- dyspepsia
- abdominal pain
- mucosal inflammation
- weakness
- fever
- peripheral edema
- hypersensitivity
- drug hypersensitivity
- nasopharyngitis
- upper respiratory tract infection
- paronychia
- appetite loss
- arthralgia
- myalgia
- limb pain
- dysgeusia
- headache
- peripheral sensory neuropathy
- peripheral neuropathy
- dizziness
- sensory abnormality
- insomnia
- nosebleed
- cough
Not everyone experiences these, and they can vary from person to person.
Storage
This medication should be stored in a tightly sealed container to prevent air or moisture intrusion. In addition, it is important to store it at a refrigerated temperature between 2 and 8 degrees Celsius to maintain its efficacy.
Appearance and packaging
Appearance
A vial injection filled with a colorless or pale brown solution
Package unit
1 vial/box [vial (14mL)]
Questions about this medicine
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For anything that needs medical judgment, consult a doctor or pharmacist.