AI Summary
Generated by AI for informational purposes only
This is a targeted therapy drug for treating a specific type of lung cancer. It works by blocking certain proteins that help cancer cells grow. It must not be used during pregnancy and breastfeeding should be avoided while taking it.
Indications
Dacomitinib is indicated for the first-line treatment of patients with metastatic non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) exon 19 deletion or exon 21 L858R substitution mutations as detected by an FDA-approved test.
Pharmacology
Dacomitinib is an irreversible inhibitor of the kinase activity of the human EGFR family (EGFR/HER1, HER2, and HER4) and certain EGFR activating mutations (exon 19 deletion or the exon 21 L858R substitution mutation). In vitro dacomitinib also inhibited the activity of DDR1, EPHA6, LCK, DDR2, and MNK1 at clinically relevant concentrations. Dacomitinib demonstrated dose-dependent inhibition of EGFR and HER2 autophosphorylation and tumor growth in mice bearing subcutaneously implanted human tumor xenografts driven by HER family targets including mutated EGFR. Dacomitinib also exhibited antitumor activity in orally-dosed mice bearing intracranial human tumor xenografts driven by EGFR amplifications.
Dosage & Administration
Important: Do not take any medication without a doctor's prescription. Self-medication can be dangerous.
The recommended dosage of Dacomitinib is 45 mg taken orally once daily, until disease progression or unacceptable toxicity occurs. Dacomitinib can be taken with or without food. Take Dacomitinib the same time each day. If the patient vomits or misses a dose, do not take an additional dose or make up a missed dose but continue with the next scheduled dose. First dose reduction Dose Level-30 mg Dose (Once Daily) Second dose reduction Dose Level-15 mg Dose.
Interaction
Proton Pump Inhibitors (PPIs): Avoid use with DACOMITINIB; use locally-acting antacids or H2-receptor antagonist; administer DACOMITINIB at least 6 hours before or 10 hours after H2-receptor antagonist
CYP2D6 Substrates: Avoid concomitant use with DACOMITINIB where minimal increases in concentration of the CYP2D6 substrate may lead to serious or life-threatening toxicities
Side Effects
Most common adverse reactions (incidence >20%) are diarrhea, rash, paronychia, stomatitis, decreased appetite, dry skin, decreased weight, alopecia, cough, and pruritus.
Pregnancy & Lactation
Dacomitinib can cause fetal harm when administered to a pregnant woman. There is no information regarding the presence of dacomitinib or its metabolites in human milk or their effects on the breastfed infant or on milk production. Because of the potential for serious adverse reactions in breastfed infants from Dacomitinib, advise women not to breastfeed during treatment with Dacomitinib and for at least 17 days after the last dose.
Precautions & Warnings
Interstitial Lung Disease (ILD): Permanently discontinue Dacomitinib if ILD is confirmed Diarrhea: Withhold and reduce the dose of DACOMITINIB based on the severity Dermatologic Adverse Reactions: Withhold and reduce the dose of DACOMITINIB based on the severity Embryo-Fetal Toxicity: Dacomitinib can cause fetal harm. Advise females of reproductive potential to use effective contraception.
Use in Special Populations
Pediatric Use: The safety and effectiveness of Dacomitinib in pediatrics have not been established.
Renal Impairment: No dosage modification is recommended for patients with mild or moderate renal impairment (ClCr 30 to 89 mL/min estimated by Cockcroft-Gault). The recommended dose of Dacomitinib has not been established for patients with severe renal impairment (ClCr<30 mL/min)
Storage Conditions
Do not store above 30⁰C. Keep away from light and out of the reach of children.
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