Chemotherapy Drugs Flashcards
S phase dependent drugs?
5-FU, 6-MP, Cytarabine, Anthracyclines (doxorubicin), Methotrexate, Procarbazine (5,6-CAMP), hydroxyurea
G2-phase dependent drugs?
Bleomycin, etoposide (late S-G2)
M phase dependent drugs?
Vincas, taxanes
Decreases thymidine synthesis?
5-FU, MTX
Antimetabolites?
Folic acid, pyrimidine, and purine analogs
Pyrimidine analogs?
5-FU, cytarabine
Teratogenic (can cause abortion)?
MTX
What is 5-FU bioactivated to?
5F-dUMP–inhibits thymidylate synthase decreasing dTMP
Treatment for overdose of 5-FU?
Thymidine rescue
What activates 6-MP?
HGPRT
Drugs that intercalate DNA?
Dactinomycin and doxorubicin
Drugs that cross-link DNA?
Alkylating agents, cisplatin
Wilm’s tumor tx?
Dactinomycin
Generates free radicals causing breaks in DNA?
1) Doxorubicin
2) Bleomycin
Cardiomyopathy type caused by doxorubicin?
Dilated
Ewing’s sarcoma tx?
Dactinomycin
Fe chelating agent used to prevent cardiotoxicity caused by doxorubicin?
Dexrazoxane
1st line for testicular tumor?
Bleomycin
Testicular tumor tx?
Etoposide, bleomycin, cisplatin
Hodgkin’s tx?
Adriamycin (doxorubicin), bleomycin, vinblastine, dacarbazene
MOA of cyclophosphamide?
Covalently crosslink (intrastrand) DNA at guanine N-7
What drug requires bioactivation by the liver?
Cyclophosphamide
Tx for hemorrhagic cystitis?
Mesna
Tx for brain tumors?
Nitrosureas (-mustine)
Drug causes HSRs?
Taxanes
Nephrotoxic?
Cisplatin/carboplatin
Acoustic nerve damage?
Cisplatin/carboplatin
Peripheral neuropathy?
Vincristine
How do you prevent nephrotoxicity caused by cisplatin?
Amifostine (free radical scavenger)
Most commonly used glucocorticoid in cancer therapy?
Prednisone, prednisolone
MOA of tamoxifen and raloxifene?
SERMS-receptor blocker in breast and agonist in bone (blocks binding of estrogen to estrogen receptor-positive cells)
Use for tamoxifen and raloxifene?
Breast cancer tx and prevention, osteoporosis
Drug that is partial agonist in endometrium increasing risk of endometrial cancer and hot flashes?
Tamoxifen (not in raloxifene bc it is an endometrial antagonist)
MOA of trastuzumab?
Monoclonal Ab against HER-2 (c-erbB2)
Ph Chr bcr-abl tyrosine kinase inhibitor?
Imatinib–used for CML
Monoclonal Ab against CD20?
Rituximab–for B-cell neoplasms (non-Hodgkin’s)
Inhibitor of B-Raf kinase in pt with V600E mutation?
Vemurafenib–for mets melanoma tx
Monoclonal Ab against VEGF?
Bevacizumab
What metabolizes 6-MP?
Xanthine oxidase
AEs of MTX?
Myelosuppression, macrovesicular fatty change in liver, mucositis, megaloblastic anemia
Used to tx colon cancer?
5-FU
Used to tx ALL and AML?
6-MP
Causes skin hyperpigmentation but NOT myelosuppression?
Bleomycin
Causes skin hyperpigmentation AND myelosuppression 100% of time?
Busulfan
Use for busulfan?
CML
Used for ovarian and breast cancers?
Taxanes
Causes alopecia?
Etoposide
Alkylating agents?
1) Cyclophosphamide
2) Nitrosureas (-mustine)
3) Busulfan