Pertuzumab is a recombinant humanised monoclonal antibody that binds to the extracellular domain (subdomain II) of the human epidermal growth factor receptor 2 protein (HER2). This binding inhibits HER2 dimerisation and subsequently blocks HER2 intracellular signaling, thereby suppressing tumor cell growth.
HER2-positive early stage breast cancer (in combination with trastuzumab and chemotherapy)HER2-positive metastatic or locally recurrent unresectable breast cancer (in combination with trastuzumab and docetaxel)breast cancer (HER2 amplification; HER2 overexpression)gastric cancer (HER2 amplification; HER2 overexpression)HER2-positive metastatic breast cancer (in combination with trastuzumab and docetaxel)HER2-positive locally advanced, inflammatory, or early-stage breast cancer (in combination with trastuzumab and docetaxel)Approved for use in early-stage breast cancerFor HER2-positive tumors: neoadjuvant therapy (with or without trastuzumab for 4–5 months), followed by further pertuzumab to complete a year if pCR achievedFor smaller tumors (clinically node-negative, <3cm) with HER2-positive status, regimen of single-agent weekly paclitaxel for 12 weeks in conjunction with a year of trastuzumab (with or without pertuzumab)Adjuvant pertuzumab added to trastuzumab provides modest benefit
- Adult
- Adult: (consult product literature or local protocols) BY INTRAVENOUS INFUSION
Half-life
18 days (median)
- Conditions that could impair left ventricular function
- History of congestive heart failure
- Impaired left ventricular function
- Prior anthracycline exposure
- Radiotherapy to the chest area
- Recent myocardial infarction
- Serious cardiac arrhythmia
- Uncontrolled hypertension
Common
AlopeciaAnaemiaAppetite decreasedArthralgiaAstheniaChillsConstipationCoughCytokine release syndromeDiarrhoeaDizzinessDyspepsiaDyspnoeaExcessive tearingFeverHeadacheHypersensitivityIncreased risk of infectionInfusion related reactionInsomniaLeucopeniaMucositisMyalgiaNail disorderNauseaNeutropeniaOedemaPainPeripheral neuropathyRespiratory disordersSkin reactionsStomatitisTaste alteredVomitingFatigueLoose stools or diarrhea (manageable with loperamide)
Serious
- Cardiotoxicity with reduced left ventricular function (leading to congestive heart failure)
- Infusion related reaction
- Hypersensitivity
- Cytokine release syndrome
- Myelosuppression (e.g., neutropenia, leucopenia, anaemia)
- Increased risk of infection
- cardiotoxicity (similar to trastuzumab)
- embryofetal harm
AnthracyclinesContraindicated
Textbook
Increased cardiotoxicity.
Combinations with cardiotoxic anthracyclines are not indicated.
Source: G&G 14e · p1419
TrastuzumabModerate
Database
Intended dual HER2 blockade — additive diarrhoea/cardiac
Standard combination monitoring
Source: Kimi deep-research + Cla
1 additional low-confidence interaction hidden — those rows lack a documented mechanism or management plan in our sources.