GI Cancer Drugs Flashcards
Bevacizumab MOA
rhuMAb-VEGF
Bevacizumab AE
Bleeding, GI perforation, wound dihescence
Bevacizumab use
colorectal
Capecitabine MOA
Oral pro-drug metabolized to 5-FU
Capecitabine AE
CV, neurologic & hematologic toxicities
Capecitabine CI
Renal dysfunction
Capecitabine PK
Dihydropyrimidine dehydrogenase (DPD) deficiency prevents metabolic activation
Cetuximab MOA
rh/mMAb-EGFR
Cetuximab AE
Cardiac & respiratory arrest, sudden death
Cetuximab use
Colorectal
Cisplatin MOA
Forms DNA intrastrand crosslinks and adducts
Cisplatin AE
BM suppression, platinum reaction; nephrotoxic & ototoxic
Docetaxel MOA
Microtubule stabilizer inhibiting depolymerization
Docetaxel AE
↑ in tx mortality with NSCLC, edema
Docetaxel CI
hepatic disease
Erlotinib MOA
EGFR-TKI
Erlotinib AE
GI, bleeding, ↑LFTs, ocular, interstitial lung
Erlotinib use
pancreas
fluorouracil (5-FU) MOA
Pyrimidine antimetabolite that inhibits thymidylate synthase (TS) & interferes with RNA synthesis & function. Also has some effects on DNA
Fluorouracil (5-FU) AE
DPD deficiency → enhanced neurotoxicity
Gemcitabine MOA
DNA polymerase inhibitor via incorporation of triphosphate form during DNA synthesis
Gemcitabine AE
BM suppression, infection, peripheral neuropathy
Gemcitabine PK
take before meal
IFN-alpha MOA
Enzyme activation following cell surface receptor binding and tyrosine kinase activation
IFN-alpha AE
neuropsychiatric events
IFN-alpha use
GI carcinoid
Imatinib MOA
Oral TKI as adjuvant treatment following complete resection of Kit (CD117) positive GIST
Imatinib AE
GI common, CHF in some
Imatinib use
GIST
Mitomycin MOA
mono or bi functional alkylating agent
Mitomycin AE
BM suppression, thrombocytopenia, HUS
Octreotide MOA
Somatostatin analog; reduces duodenal bicarbonate, amylase, reduces gastric acidity, inhibits gallbladder contractility and bile secretion, inhibits meal-induced increases in superior mesenteric artery and portal venous blood flow
Octreotide AE
monitor blood glucose, dose-dependent diarrhea
Octreotide use
GI carcinoid
Sufitinib MOA
Inhibitor of >80 receptor tyrosine kinases (RTKs)
∙ PDGRF-a/b, VEGF-R1/2/3, KIT, FLT-3
∙ CSFR-1R & RET
Sufitinib AE
thrombocytopenia and bleeding, QT prolongation & GI complications
Sufitinib use
GIST
Trastuzumab MOA
HER-2/neu antibody; HER2 is downregulated, cyclin-dependent kinase inhibitor p27 accumulates, and cell cycle arrest occurs. Also inhibits the constitutive HER2 cleavage/shedding mediated by metalloproteases, which may correlate with the clinical activity
Trastuzumab AE
LVEF dysfunction & cardiomyopathy
Trastuzumab use
gastric