Cancer Drug Hardy Flashcards
Platinum complexes
DNA alkylating agents-cross links base pair and bends DNA
Cisplatin
Carboplatin
Oxaliplatin
Nitrogen mustards
DNA alkylating agent
Mechlorethamine
Cyclophosphamide
Alkyl sulfonate
DNA alkylating agent
Bushel fan
DNA alkylating agent mechanism
Cross links DNA-interferes with unwinding ability
Mechlorethamine
Most reactive nitrogen mustard
Toxicity of cyclophosphamide
Cardio toxicity, hemorrhagic cystitis, hematuria
MESNA
Added to cyclophosphamide to prevent toxicities
Cisplatin toxicity
Renal damage (reduced hydration), ototoxicity with hearing loss, peripheral sensory neuropathy
Busulfan toxicity
Bone marrow depression (stem cells)
Antimetabolites
Methotrexate Fluorouracil Capecitabine Cytarabine Mercaptopurine Asparaginase
Methotrexate mechanism
Analog of folic acid
Competitive inhibitor of dihydrofolate reductase
Blocks dTMP synthesis which is required for DNA synthesis
Inhibits folate dependent enzymes
Methotrexate toxicity
Hepatic necrosis
Bone marrow depression
Fluorouracil mechanism
Makes fraudulent dUMP
Inhibits thymidylate synthase
Flurouracil toxicity
Sever ulceration of oral and GI mucosa
Diarrhea
Cytarabine toxicity
Bone marrow depression
6 mercaptopurine
Metabolized in liver (xanthine oxidase and TPMT)
Toxicity=bone marrow depression
Xanthine oxidase inhibitors= reduce drug 75%
Don’t give pts with TPMT and HGPRT
Asparginase Erwinia chrysanthemi (erwinaze)
Mechanism: hydrolyze asparagine to aspartic acid and ammonia
Toxicity =risk of anaphylaxis
Microtubule inhibitors
Paclitaxel
Docetaxel
Mechanism= metaphase arrest leads to apoptosis
Toxicity= bone marrow, peripheral sensory neuropathy
Topoisomerase inhibitors
Doxorubicin
Irinotecan
Mechanism= no way to fix nicked DNA
Anthracycline antibiotics
Inhibits topoisomerase II
Toxicity= acute and chronic cardiac toxicity
Doxorubicin toxicity
ECG changes, ventricular arrhythmia, cardiotoxicity, bone marrow depression
Does this by free radical damage
Dexrazoxane
Used to protect from cardiotoxicity and extravasation from IV doxorubicin
Irinotecan
Severe GI toxicity
UGT1A1 28 polymorphism
Used for colon cancer
Bleomycin
Free radical generator, DNA fragmentation
NO bone marrow toxicity
Pulmonary fibrosis