lapatinib

E902877

Lapatinib is an oral small-molecule tyrosine kinase inhibitor used primarily to treat HER2-positive breast cancer.

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Statements (50)

Predicate Object
instanceOf EGFR inhibitor
HER2 inhibitor
antineoplastic agent
oral anticancer agent
protein kinase inhibitor
small-molecule drug
tyrosine kinase inhibitor
bindsTo ATP-binding site of EGFR
ATP-binding site of HER2
developedBy GlaxoSmithKline NERFINISHED
hasApprovalBy European Medicines Agency NERFINISHED
U.S. Food and Drug Administration NERFINISHED
hasATCCode L01EB07
hasBioavailability low to moderate oral bioavailability
hasBoxedWarningFor hepatotoxicity
hasCASNumber 231277-92-2
hasChemicalFormula C29H26ClFN4O4S
hasCommonAdverseEffect diarrhea
fatigue
nausea
rash
hasEliminationHalfLife approximately 24 hours
hasMolecularWeight 581.06 g/mol
hasRouteOfAdministration oral
hasSeriousAdverseEffect cardiac dysfunction
hepatotoxicity
hasTradeName Tykerb NERFINISHED
Tyverb NERFINISHED
inhibits autophosphorylation of EGFR
autophosphorylation of HER2
isAdministeredAs lapatinib ditosylate NERFINISHED
isHighlyProteinBound true
isMetabolizedBy CYP2C19 NERFINISHED
CYP2C8 NERFINISHED
CYP3A4 NERFINISHED
CYP3A5 NERFINISHED
isPregnancyCategory D (US, historical classification)
isSubstrateOf P-glycoprotein NERFINISHED
mechanismOfAction reversible inhibition of HER2 and EGFR tyrosine kinases
oftenUsedWith capecitabine NERFINISHED
letrozole
reduces downstream MAPK signaling
downstream PI3K/AKT signaling
targets EGFR NERFINISHED
ERBB1 NERFINISHED
ERBB2 NERFINISHED
HER2 NERFINISHED
usedFor HER2-positive breast cancer
advanced breast cancer
metastatic breast cancer

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

HER2 receptor targetOfDrug lapatinib
ERBB2 therapeuticTargetOf lapatinib