
Crizonix contains the cancer drug Crizotinib, a kinase inhibitor indicated in the treatment of locally advanced or metastatic non-small cell lung cancer (NSCLC) that is anaplastic lymphoma kinase (ALK)-positive or ROS 1 positive
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1. Name of the medicinal product
XALKORI® (Crizotinib) hard capsules, 200 mg and 250 mg
2. Qualitative and quantitative composition
Each capsule contains 200 mg or 250 mg of crizotinib
3. Pharmaceutical form
Hard capsule, for oral use
4. Clinical particulars
Therapeutic indications
Treatment of adults with advanced non-small cell lung cancer (NSCLC) that is ALK-positive or ROS1-positive
Treatment of paediatric patients (≥6 years) and adolescents with relapsed/refractory ALK-positive anaplastic large cell lymphoma (ALCL)
Treatment of paediatric patients and adolescents with relapsed/refractory ALK-positive inflammatory myofibroblastic tumour (IMT). keytruda-infusion
Posology and method of administration
Adults: 250 mg twice daily orally, with or without food
Children: dose based on body surface area (BSA), according to paediatric dosing guidelines
Dose modifications may be required for toxicity, hepatic or renal impairment
Contraindications
Hypersensitivity to crizotinib or any excipient
Special warnings and precautions
Hepatotoxicity (monitor liver function tests)
Interstitial lung disease/pneumonitis
QT interval prolongation and bradycardia
Visual disturbances
Risk of embryo-foetal toxicity; contraception required
5. Pharmacological properties
Mechanism of action
Crizotinib is a selective, ATP-competitive small-molecule inhibitor of the receptor tyrosine kinases ALK, ROS1, and MET
In ALK- or ROS1-positive tumours, inhibition leads to decreased proliferation and survival of cancer cells
Pharmacokinetics
Oral bioavailability: ~43%
Protein binding: ~90%
Metabolism: primarily CYP3A4/5
Half-life: ~42 hours
Elimination: mainly via faeces (63%), urine (22%)
6. Undesirable effects
Very common: visual disorders, nausea, vomiting, diarrhoea, constipation, oedema, elevated transaminases, fatigue, decreased appetite
Common: neutropenia, anaemia, dizziness, neuropathy, interstitial lung disease
7. Drug interactions
CYP3A inhibitors increase crizotinib exposure
CYP3A inducers decrease crizotinib levels
Caution with CYP3A substrates with narrow therapeutic range
This is the official-style SmPC description in English, summarised from the EMA/UK MHRA documents.tramadol-uk