Chemo Drugs Flashcards
Which medications are folate antagonists?
MTX
Pemetrexed
What do we give with HD MTX?
Leucovorin
What do we give with pemetrexed?
Folic acid
B12
What is the MOA of folate antagonists?
Inhibits dihydrofolate reductase which results in blockage of thymidylate and purine synthesis
Pemetrexed is a multi-targeted antifolate
What are the AEs of folate antagonists?
Myelosuppression
Mucositis
Renal tubular necrosis with HD MTX
With which drug should supplemental steroid eye drops be given?
HD Cytarabine
What are the pyrimidine antagonists?
Fluorouracil
Capecitabine
Cytarabine
Gemcitabine
What is the MOA of pyrimidine antagonists?
Structural analogues of pyrimidines
Fluorouracil inhibits thymidylate synthase, which inhibits formation of thymidine (affects DNA and RNA)
Capecitabine is a fluorouracil prodrug
What are the AEs of pyrimidine antagonists?
Myelosuppression Mucositis, stomatitis Diarrhea "Hand-foot syndrome" Neurologic Cytarabine: rash and conjunctivitis
What AE is more common with capecitabine use?
Hand-foot syndrome
What neurologic AE does cytarabine cause?
Cerebellar toxicity
What are the purine antagonists?
Fludarabine
Thioguanine (6-TG)
Mercaptopurine (6-MP)
What is the MOA of purine antagonists?
Analogues of purines which get incorportated into DNA to prevent functional DNA synthesis
What are the AEs of purine antagonists?
Myelosuppression Liver toxicity (6-TG, 6-MP)
Which purine do we give prophylactic abx and antivirals with?
Fludarabine
What classes are the antimetaolites?
Folate antagonists
Pyrimidine antagonists
Purine antagonists
What classes are the alkylating agents?
Nitrogen mustard derivatives
Platinum analogs
Alkylsulfonates
Which drugs are the nitrogen mustard derivatives?
Cyclophosphamide
Ifosfamide
Bendamustine
Mechlorethamine
What is the MOA of nitrogen mustard derivatives?
Form DNA cross-links, resulting in inhibition of DNA synthesis and function
What are the AEs of nitrogen mustard derivatives?
Myelosuppression N/V Alopecia Sterility/Infertility Hemorrhagic cystitis Infections (bendamustine)
Which drugs cause hemorrhagic cystitis?
Ifosfomide
Cyclophosphamide
What medication is used to prevent hemorrhagic cystitis?
Mesna
Which drugs are platinum analogs?
Cisplatin
Carboplatin
Oxaliplatin
What is the MOA of the platinum analogs?
From intrastrand and interstrand DNA cross-links
Binds to nuclear and cytoplasmic proteins
What are the AEs of cisplatin?
Nephrotoxicity Severe N/V Ototoxicity Neuropathy Electrolyte depletion (Mg, K)
What are the AEs of carboplatin?
Myelosuppression
Moderate-severe N/V
Hypersensitivity
What are the AEs of oxaliplatin?
Neuropathy
Moderate-severe N/V
Myelosuppression
Hypersensitivity
What drug additional therapy is given with cisplatin?
Fluids before and after for nephrotoxicity
What are the alkylsulfonates?
Busulfan
When is Busulfan used?
Bone marrow/stem cell transplant
What is the MOA of Alkylsulfonates?
Cleavage of alkyl oxygen bond and formation of a butyl compound that forms crosslinks with DNA
What are the AEs of alkylsulfonates?
Myelosuppression
Pulmonary toxicity
Skin pigmentation
What are miscellaneous alkylating agents?
Bleomycin
Dacarbazine
What is the MOA of Bleomycin?
Mixture of peptides from fungal streptomyces species
Binds to DNA and produces single and double stranded DNA breaks following free radical formation
What are bleomycin AEs?
Pulmonary toxicity
Hyperpigmentation
Febrile reaction
What are the dacarbazine AEs?
Myelosuppression
N/V
What are the classes of enzyme inhibitors?
Anthracyclines
Epipodophyllotoxins
Captothecans
What drugs are anthracyclines?
Daunorubicin
Doxorubicin
Idarubicin
Epirubicin
What is the MOA of anthracyclines?
Topoisomerase II inhibition
Intercalation of DNA
Formation of free radicals
What are the AEs of anthracyclines?
Myelosuppression Cardiomyopathy Moderate-severe N/V Extravasation Red urine
What do we monitor in anthracyclines?
CBC
LFTs
EF
What drugs are epipodophyllotoxins?
Etoposide
Tenoposide
What is the MOA of epipodophyllotoxins?
Topoisomerase II inhibition
What are the AEs of epipodophyllotoxins?
Myelosuppression
Hypotension (IV etoposide)
Alopecia
What are the camptothecans?
Irinotecan
Topotecan
What is the MOA of camptothecans?
Topoisomerase I inhibition
What are the AEs of camptothecans?
Myelosuppression
Alopecia
Diarrhea (dose-limiting for irinotecan)
If a patient on a camptothecan experiences diarrhea, how do we treat it?
w/in 24 hours = atropine
after = loperamide
What classes are microtubule-targeting drugs?
Taxanes
Vinca alkaloids
Which medications are taxanes?
Paclitaxel
Docetaxel
Albumin-bound paclitaxel
Cabazitaxel
What is the MOA of taxanes?
Bind tubulin and stabilize microtubules Prevent depolymerization (freeze cell in anaphase/telophase)
What are the AEs of Taxanes?
Hypersensitivity**
Peripheral neuropathy**
Myelosuppression
Alopecia
What medications do we administer with docetaxel and why?
Dexamethason to lower risk of fluid retention
What medications do we adminsiter with Paclitaxel?
Steroid, H1RA (benadryl) and H2RA (ranitidine)
What are vinca alkaloids?
Vinblastine
Vincristine
Vinorelbine
What is the MOA of vinca alkaloids?
Bind tubulin and interfere with microtubule assembly (depolymerize microtubule) preventing spindle formation
What are the AEs of Vinca alkaloids?
Myelosuppression (vinblastine/vinorelbine)
Neurologic toxicity (vincristine)
Constipation
Extravasation
Which vinca alakloid do we not administer intrathecally?
Vincristine
ISMP recommends against syringe use
What is the MOA of target agents-ABs?
Block cell surface receptor function and/or recruit immune cells and complement for tumor cell apoptosis
May be linked to chemotherapy agents or radioactive particles
What are the 4 ways that target agents-AB work?
Binding of ab to surface protein
Stimulation of ADCC (Antibody-dependent cellular toxicity)
Stimulation of CDC (complement-dependent cytotoxicity)
Angiogenesis
What are AEs of target agents-ABs?
Hypersensitivity/infusion related reactions (get better with subsequent treatment)
How do we premedicate for target agent-ABs?
Antihistamines
AND
APAP/dexamethasone
What medications target antibodies?
Trastuzumab Pertuzumab Rituxumab Ofatumumab Obinutuzumab Alemtuzumab Cetuximab Panitumumab Blinatumomab Bevacizumab
What AB does trastuzumab target?
HER-2
What is the AE for trastuzumab?
Cardiomyopathy
What is the target for Pertuzumab?
HER-2 extracellular domain
Works complementary with trastuzumab
What are the AEs for pertuzumab?
Cytopenias
Fetal toxicity
LV dysfunction
What are the AEs of Rituximab?
HepB/Tb reactivation
Severe SJS
What does ofatumumab/ obinutuzumab/ rituximab target?
CD20 surface antigen on B-lymphocyte
What are the AEs of ofatumumab/obinutuzumab?
HepB/Tb reactivation
Cytopenias
Progressive multifocal leukoencephalopathy (PML)
What does alemtuzumab target?
CD52 antigen on leukemic lymphocytes
What are the AEs for alemtuzumab?
Cytopenias
Infections
What is the target of cetuximab/ panitumumab?
Cell surface EGFR-2
When are cetuximab/ panitumumab not effective?
KRAS mutations
What are the AEs of Cetuximab/ panitumumab?
Acniform rash
Hypomagnesemia (monitor Mg, K, Ca)
What does blinatumomab a target?
Bispecific T-cell egager (BiTE): helps connect T cell to cancer cell
What are the AEs of blinatumomab?
Cytopenias
Infections
Cytokine release syndrome
What de we premedicate blinatumomab with?
Dexamethasone
What does bevacizumab target?
VEGF ligand to prevent angiogenesis
Which targeted agents-AB cannot be administered within 28 days of surgery?
Bevacizumab
What are AEs for Bevacizumab?
GI perforation
Hemorrhage/thrombotic nephrotic syndrome
HTN
What agents target Tyrosine Kinase inhibitors?
Imatinib Nilotinib Dasatinib Erlotinib Afatinib Alectinib Dabrafenib Vemurafenib Trametinib Cobimetinib
What drugs do tyrosine kinase inhibitors interact with?
3A4
Azoles (inhibitors)
Rifampin/phenytoin (inducers)
What is the MOA of imatinib?
Inhibits BCR-ABL tyrosine kinase caused by Philadelphia chromosome translocation
What is the DDI for imatinib?
3A4 substrate
What are the AEs for imatinib?
Myelosuppression
Fluid retention
Myalgias
CHF
What is the MOA of nilotinib?
Inhibits BCR-ABL tyrosine kinases, including those resistant to imatinib Multiple receptor (mrTKI)
What are the DDIs of nilotinib?
3A4, 2C8, 2C9, 2D6 inhibitor
Inducer of other enzymes
What are the AEs of nilotinib?
QT prolongation**
Rash
Myelosuppression
Hepatotoxicity
What is the MOA of dasatinib?
Inhibits BCR-ABL tyrosine kinases, including those resistant to imatinib
mrTKI
What are the DDIs of dasatinib?
3A4 substrate
What are the AEs of dasatinib?
Myelosuppression Fluid retention Pleural effusion QT prolongation Pulmonary arterial HTN
What is the MOA of erlotinib?
EGFR tyrosine kinase inhibitor
What are the DDIs of erlotinib?
3A4 substrate
What are the AEs of erlotinib?
Diarrhea
Rash
Hepatotoxicity
Interstitial lung disease
What is the MOA of afatinib?
EGFR tyrosine kinase inhibitor
May have some HER-2 activity
What are the DDIs of afatinib?
P-gp substrate and inhibitor
What are the AEs of afatinib?
Severe diarrhea
Skin disorders
Hepatotoxicity
What is the MOA alectinib?
Inhibits multiple tyrosine kinases including anaplastic lymphoma kinase (ALK)
What are the DDIs of alectinib?
3A4 substrate
No clinically relevant drug interactions
What are the AEs of alectinib?
Constipation
Fatigue
Peripheral edema
Bradycardia
What are the MOAs of dabrafenib/ vemurafenib?
BRAF serine-threonine kinase inhibitor
Indicated for metastatic melanoma with BRAF V600E mutation (not indicated for wild type)
What does BRAF stand for?
b-Rapidly Accelerated Fibrosarcoma
What are the DDIs of dabrafenib/ vemurafenib?
3A4 substrate
Avoid strong 3A4 inducers and inhibitors
What are the AEs of dabrafenib/ vemurafenib?
New malignancies
QT prolongation
What is the MOA of trametinib/ cobimetinib?
Kinase inhibitor
Indicated for metastatic melanoma with BRAF V600E or V600K mutations
NOT indicated for patients who have received prior BRAF-inhibitor therapy
What are the DDIs for cobimetinib?
3A4 substrate
What are the AEs for trametinib/ cobimetinib?
Cardiomyopathy Retinal pigment Epithelial detachment Rash Diarrhea Lymphedema
What drug targets b-cell receptor agents?
Ibrutinib
What is the MOA for ibrutinib?
Selective and irreversible inhibitor of Bruton’s tyrosine kinase (BtK)
What are the DDIs for ibrutinib?
3A4 substrate
What are the AEs for ibrutinib?
Diarrhea
Rash
Bruising/bleeding
Neutropenia
What drugs block the immune systems checkpoints?
Ipilimumab
Pembrolizumab
Nivolumab
What does ipilimumab target?
Cytotoxic T-lymphocyte antigen (CTLA-4) with effect of increasing T-cell activation and proliferation
What is a CTLA-4?
Negative regulator of T-cell activation
What does pembrolizumab/ nivolumab target?
Programmed death-1 receptor
- Bind to the PD-1 receptor, and block interaction between PD-1 and PD-L1
- Blocking this inhibitory activity can reactivate the T-cell tumor response
What are the AEs of ipilimumab?
Infusion reactions
Diarrhea
Pruritis
Rash
What are the AEs for pembrolizumab/ nivolumab?
Rash Pneumonitis Colitis Hepatitis Nephritis Renal dysfunction Hypo/hyperthyroidism
What is the MOA of interferon alpha-2b?
Activities include:
- Inhibition of cell proliferation
- Enhanced phagocytic activity of macrophages
- Increased cytotoxicity of NKCs
What are the AEs of interferon alpha-2b?
Flu-like syndrome (fever, HA, myalgia, weakness) Bone marrow suppression CNS & neurological effects Thyroid changes Hepatotoxicity
What is the BBW of interferon alpha-2b?
May cause or exacerbate fatal or life-threatening neuropsychiatric, autoimmune, ischemic, or infectious disorders
How do we pretreat interferon alpha-2b?
NSAIDs or APAP
What are the AEs for interleukin-2?
Flu-like syndrome Capillary leak syndrome (flu-like symptoms, low BP) N/V/D Impaired neutrophil function CNS effects
What is the BBW for interleukin-2?
Patients should have normal cardiac and pulmonary function
What drugs classes work on the endocrine system?
Antiestrogens
Aromatase inhibitors
GnRH Agonists/LHRH agonists
Antiandrogens
What are the antiestrogens?
Tamoxifen
Toremifene
Raloxifene
What are the aromatase inhibitors?
Anastrozole
Letrozole
Exemestane
What are the GnRH/LHRH agonists?
Leuprolide
Gosereline
Triptorelen
What are the antiandrogens?
Flutamide
Nilutamide
Bicalutamide
Enzalutamide
What is the MOA of antiestrogens?
Blocks estrogen receptor
Blocking estrogen stimulation of hormone sensitive tumors
Raloxifene with some proestrogenic effects
What are the AEs of antiestrogens?
Hot flashes
N/V
Thromboembolic events
What is the MOA of aromatase inhibitors?
Inhibits enzyme that converts androgen to estrogens
What are the AEs of aromatase inhibitors?
Hot flashes
Fatigue
Bone/joint pain
Decreased bone density
What is the MOA of GnRH/LHRH agonists?
Feed back to pituitary to decrease release of FSH and LH
What are the AEs of GnRH/LHRH agonists?
Tumor flare (initially) Hot flashes Gynecomastia Decreased bone density Injection site pain Decreased libido
What is the MOA of antiandrogens?
Testosterone receptor blocker
What are the AEs of antiandrogens?
Hot flashes
Gynecomastia
Increased LFTs
Blurred vision (nilutamide)
What is the MOA of hydroxyurea?
Ribonucleoside diphosphate reductase inhibitor
What is the MOA of L-Asparaginase pegasparaginase?
Inhibits protein synthesis by hydrolyzing asparagine to aspartic acid and ammonia
What is the MOA of arsenic trioxide?
Damages/degrades the PML-RAR alpha fusion protein
What is PML-RAR?
Promyelocytic leukemia-retinoin acid receptor
What is the MOA of tretinoin (ATRA)
Induces differentiation of acute promyelocytic leukemia cells
What are the AEs of hydroxyurea?
Myelosuppression
Mucositis
Hepatotoxicity
Renal toxicity
What are the AEs of L-asparaginase pegasparaginase?
Hypersensitivity
Hyperglycemia
Pancreatitis
What are the AEs of arsenic trioxide?
QT prolongation Peripheral neuropathy Hyperglycemia Musculoskeletal pain "Retinoic acid syndrome"
What are the AEs of tretinoin (ATRA)?
Peripheral edema Edema Skin dryness RAsh Leukocytosis "Retinoic acid syndrome"
How is hydroxyurea used in sickle cell anemia?
Reduces painful crises
How is hydroxyurea used in leukemias?
Reduces malignant cell counts
What baseline labs should be taken prior to start of arsenic trioxide?
EKG
Electrolytes
What vitamin is tretinoin an analogue of?
Vitamin A