Oncology & Psych/Neurological Flashcards
what is carcinoma?
cancer that starts in skin or in the tissues that line or cover internal organs
What is Luekemia?
cancer of the leukocytes (WBCs): leukemia is referred to as blood cancer
What is Lymphoma?
cancer of the lymphatic system
What is Multiple myeloma?
a type of bone marrow cancer
What is sarcoma?
cancer in connective tissue (tissue that connects, supports, binds or separates other tissues), including fat, muscle, blood vessels and bone. Osteosarcoma is a type of bone cancer
Skin cancers: Basel cell/squamous cell & melanoma
BC/SC: common, unlinkey to metastasize, simple to remove surgically or with topical tx
M: skin cancer that forms in the melanocytes (the skin cells that produce the pigment (melanin) that colors skin] the least prevalent type of skin cancer (2%) but the most deadly
Staging of cancer: 0-4, TNM staging
-used to describes the cancer, how large the tumor is and if it has metastasized
TNM:
–T = tumor size and extent
– N=spread of the cancer to lymph nodes
–M = whether the cancer has metastasized
7 Signs of cancer: CAUTION
C: change in bowel or bladder
A: a sore that does not heal
U: unusual bleeding or discharge
T: thickening or lump in breast/elsewhere
I: indigestion or difficulty swallowing
O: obvious change in wart or mole
N: nagging cough or hoarseness
How can low dose aspirin help in cancer prevention/protection?
-rec for prevention of coloractal cancer in those who are 50-59 y/o, have ACSVD risk > 10%, have > 10 yr life expectancy and are at low risk of bleeding
Consideration for highly toxic drugs: Bleomycin
-lifetime cumulative dose of 400 units
–> causes pulmonary toxicity
Consideration for highly toxic drugs: Doxorubicin
-lifetime cumulative dose: 450-550 mg/m2
–> causes cardiotoxicity
-anthracycline durg GIVE DEXRAZOXANE PROPH
Consideration for highly toxic drugs: Cisplatin
-dose per cycle not to exceed 100 mg/m2
–> nephrotoxicity
*give Amifostine (Ethyol) for prohp to reduce risk
-ensure hydration
Consideration for highly toxic drugs: Vincristine
-single dose “capped” at 2 mg
–> neuropathy
Cancer tx drugs that commonly cause hepatotoxicity
-antiandrogens [ bicalutamide, flutamide, nilutamide –> used mainly for prostate cancer]
-metothrexate
What 2 cancer tx drugs cause hemorrhagic cystitis?
-ifosafamide (all doses)
-Cyclophosphamide (higher doses > 1 gram/m2)
** give mesna (mesnex) w/ Ifosafamide (and sometimes cyclo) to reduce risk & ensure hydration–> push fluids with mannitol to cause osmotic diuresis
What cancer medications cause neuropathy?
-vinca alkaloids (vincristine, vinblastine, vinorelbine)
–> limite dose of vincristine to 2 mg /dose
-platinums (cisplatin, oxaplatin)
–> oxa: avoid cold temps and cold drinks
What cancer meds cause thromboembolic risk?
-aromatase inhibitors ( anastrozole, letrozole)
-SERMs (tamoxifen, raloxifene) – breast cancer drugs
Chemo man toxicity: Methotrexate
-mouth sores (mucrositis), 5 FU can also cause
–> give leucivorin to help reduce toxicity
Chemo man toxicity: CNS toxicity
-caused by nitrosureas: carmustine and lomuestine
Chemo man toxicity: nephrotoxicity and ototoxicity
-Cisplatin (dose < 100 mg/m2 per cycle!!)
-Carboplatin
–> give fluids and mannitol!
–> MUST DISPENSE AMIFOSTINE with both meds for protection
Chemo man toxicity: pulmonary fibrosis
-bleomycin (life time cap of 400 units!)
-busulfan
Chemo man toxicity: cardiotoxicity
-Doxorubicin: lifetime dose capped at 450-550 mg/m2
-Daunorubicin
–> MUST GIVE DEXRAZOXAME!
Chemo man toxicity: hemorrhagic cystitis (“I Pee”)
Ifosfamide: more toxic
Cyclophosphamide
–> give fluids (NS and mannitol) and MESNA TO PROTECT THE BLADDER!
Chemo man toxicity: Peripheral neuropathy
-both hands and feet (VT)
-Vinca alkaloids: vincistine (max single dose 2 mg), vinloblastine, vinorelbine)
-Taxanes: pacitaxel, docetaxel
Chemo man toxicity: Bone marrow suppression
ALL EXCEPT:**
-vincristine (bad nausea, neuropathy, capped at 2 mg/dose)
-bleomycin (pulm fibrosis, capped at lifetime 400 un
-monoclonal abs
-TKIs
**give colonoy stimulating growth factors (filgrastim)*
Chemo man toxicity: acute diarrhea
-irinotecan –> “ I ran to the can”
–> stop this with adding atropine to IV bag (stops acute cholinergic crisis)
-sent pts home with loperamide
chemo adjunctant medications: Doxxorubicin
-dexrazoxane (Zinecard)
-dexrazone (totect) –> antidote
chemo adjunctant medications: Fluorouracil
-leucovorin or levoleucovorin –> give with to enhance efficacy
chemo adjunctant medications: Fluorouracil or capecitabine
-give uridine triacetate as an antidote
chemo adjunctant medications: Methotrexate
-leucovorin or levoleucovorin: give proph to protect cells from toxicity
-glucarpidase: used as an antidote it acute renal failure to increase med clearance
difference stages of neutropenia
–> the lower the WBC count, the higher risk of infection
-neutropenia: < 1000
-severe neutropenia: < 500
-profound neutropenia: < 100
ANC= [WBC * (% neutrophils + % bands) / 100] *
CSF: Filgrastim (Neupogen), Pegfilgrastin (Neulasta)
-F: given daily
-P: given weekly with chemo (should give at least 14 days before next doc chemo cycle)
SE: fever, bone pain, arthalgias, myalgias, rash
–> store in fridge
Febrile neutropenia temp requirements
-oral temp > 38.3 (101) x 1 reading
-oral temp > 30.0 (100.4) sustained for > 1 hr
–> ANC < 500 or ANC < 1000 and is expected to dec to < 500 during the next 48 hrs
Febrile neutropenia tx: low risk
-expected ANC < 100 for < 7 days, no comorbidities
–> oral anti-pseudomonal abx: cipro, levofloxacin PLUS amox/clauv (for gram + coverage) or clindamycin (if allergic to penicillin)
Febrile neutropenia: high risk
-expected ANC < 100 for > 7 days, presence of comoborbities, evidence of renal or hepatic impairement
–> IV anti-pseudomonal beta-lactams: cefepime, ceftazidime, meropenem, imipenem/cilastatin or pip/tazo
Anemia tx in cancer pts
-ESA agents can shorten survival and inc tumor progression = NOT rec in pts for curative care, only pallitive
–> initiate when Hgb < 20**
-use the lowest dose needed to avoid RBC transfusion
-need to make sure serum ferritin, TSAT and TIBC are normal or ESA wont work
Risk factors for chemo-induced nausea and vomiting
- female gender
-< 50 y/o
-dehydration
-hx of motion sickness and N/V
–> admin. antiemetics 30 mins before chemo
drugs used for low emetic risk
-1 drug (any except NK1-RA)
5ht3-RA (dolasetron, granisetron, ondansetron)
dexamethasone
prochlorperazine
metoclopramide
drugs used for moderate emetic risk
-2-3 drugs
NK-1RA + 5HT3-RA + dexamethasone [netupitant/palonosertron or fosnetupitant/palonosertron + dexamethasone]
5HT-RA + dexamethasone
Palonosteron + olanzapine + dexamethasone
drugs for high emetic risk
-3-4 drugs
*olanzapine + netupitant/palonosertron or fosnetupitant/palonosertron + dexamethasone
-palonosteron + olanzapine + dexamethasone
-netupitant/palonosetrone or fosnetupitant/palonosertron + dexamethasone
NK-1 RA: aprepitant (Emend), Fosaprepitant,
-inhibit substance P, augmenting the antiemetic activity of 5HT-3 receptor antagonists
5HT-3 receptor antagonists: odansertron (zofran), granisetron (Sancuso), Palonosteron
CI: do not use with apomorphine
Warnings: inc in QT interval, serotonin syndrome
SE: headache, constipation
Dexamethasone (for chemo N/V)
CI: systemic fungal infections
SE: inc appetite, fluid retention, insomnia
–> higher doses inc BP and blood glucose
Dopamine Receptor Antagonists (Prochloperazine, promethazine, metoclopramide, olanzapine, haloperidol)
BBWs:
-prochlorperazine: inc mortalilty in elderly
-promethazine: do not use in children < 2 y/o, do not give via intra-arterial or SC
-metoclopramide: tardive dyskinesia, dec dose with renal impairment
-haldol: QT prolongation
Warnings: symptoms of parkinsons disease can be exacerbated
SE: sedation, lethargy, EPS, seizures
Chemo induced diarrhea (meds)
-Irinotecan: causes cholinergic excess, including diarrhea with abdominal cramping
-Atropine –> can be given to PREVENT acute diarrhea
-Pilocarpine: causes salivation, used for xerostomia (dry mouth) caused by some cancer drugs- also used for lacrimation (tears) and is used for dry eyes
Hand-foot syndrome management
-occurs with tx with capectabine, flourouracil- due to small amounts of chemo dripping into the capillaries of the hands and feet
-limit daily activity to reduce friction and heat exposure to hands and feet
-emollients (aquaphor, udder cream and bag blam) are used to retain moisture, topical steroids and pain medications can also be used
-cooling hands and feet with cold compress may provide temp. relief of pain and tenderness
Treatment of tumor lysis syndrome
S&S: acute hyperkalemia, hypocalcemia, and hyperuricemia = AKI
-allopurinol 400-800 mg/day
-if get a skin rash from allo, can use febuxostat
-Rasburicase is used for initial tx in pts with high risk (WBC > 100,000)
-both should be given IV w/ normal saline
Hypercalcemia of malignancy
-1st line: IV bisphosponate (pamidrone, zoledroonic acid)
–> severe cases: calcitonin can be added (for up to 48 hrs)
-can also use denosumab (Xgeva)
HER2 overexpression & TX
-HER2/neu oncogene promotes breast tumor growth: overexpression amplifies cancer cell growth and survival
* Trastuzumab (Herceptin): binds to the HER2 receptor, preventing dimerization –> Mbas can trigger severe reaction- premedicate with (dexameth (steroid), diphenhydramine (antihistamine) & acetaminophen)
SERMS: Tamoxifen (soltamox), raloxifene (Evistal)
-used for premenopausal ER+ breast cancer
BBW: inc risk of uterine or endometrial cancer, thromboembolic events
CI: do not use with warfarin, hx of DVT/PE (use venlafaxine to treat hot flashes if needed)
SE: hot falshes, vaginal bleeding, dec bone density
–> TERATOGENIC,
Raloxifene (IM): used in women for breast cancer prevention and osteoporosis prevention/tx
**contin for at least 5 yrs
Aromatase inhibitor: Anastrozole (Arimdex), Letrozole (femara)
-blocks conversion of androgens to estrogen –> used in post menopausal women
-higher risk of osteoporosis and. CVD
Ci: pregnancy
SE: hot flashes, myalgias (painful muscles)
**contin for at least 5 yrs
common drugs used to treat metastatic breast cancer
-capecitabine
-carboplatin
-cyclophhosphamide
-docetaxel
-paclitaxel
-doxorubicin
-methotrexate
GnRH agonists (Leuprolide (Lupron), goserelin (Zoladex)
-LHRH hormones agonsits; reduce testosterone through a negative feedback mechanism, causing an initial surge in testosterone, followed by gradual reduction
–> dec bone density; supp w/ calcium/vit D
–> cause tumor flare: prevent w/ concurrent use of an antiandrogen (bicalutamide) for several weeks
SE: hot flashes, impotence, gynecomastia, bone pain, QT prolongation
Antiandrogen, first generation: Bicalutamide (Casodex)
-competitively inhibit testosterone from binding to prostate cancer cells–> used in combination with a GnRH agonist
CI: do not use in females
SE: hot flaashes, gynecomastia
What chemo drugs are cell cycle INDEPENDENT (AAP: all awesome pharmacists)?
–> tumor killing not dependent on the phase of the cell cycle
-Alkylating agents (cyclophosphamide, Ifosfamide)
-Anthracyclines (doxorubicin, Mitoxantrone)
-Plantinum Compounds: Cisplantin, Caroplatin)
What chemo drugs are S-phase (DNA replication) dependent? (AT)
-Antimetabolites (methotrexate, pemetrexed, Fluorouracil, Capecitabine)
-Topoisomerase I Inhibitors (Irinotecan, Topotecan)
BSA formula (Mosteller Equation)
BSA = st[(ht cm * wt kg) / 3600]
in –> cm = in * 2.54
lb –> kg = lb/2.2
Male norm = 1.9
Female norm = 1.6
Alkylating Agents (cell cycle independent)
-work by cross-linking DNA strands + inhibiting proteins and DNA synthesis
–> can cause DNA mutations that lead to “secondary malignancies”
-cyclophosphamide + ifosfamide: produce a metabolite (acrolein) that concentrates in the bladder & can cause hemorrhagic cystitis
***must always dispense ifosfamide with mensa!
Alkylating Agents drugs
-cyclophosphamide –> SE: SAID
-ifosfamide (Ifex)
-Carmustine –> use non-PVC bag and tubing
-Busulfan –> SE= pulmonary toxicity
BBW: hemorrhagic cystitis
Platinum-based compounds facts
-cross-link DNA and interfere w/ DNA synthesis and cell replication
–> have toxicities similar to heavy metal poisoning = peripheral sensory neuropathy, ototoxicity & nephrotoxicity
Platinum-based compounds: Cisplatin
-nephrotoxicity, ototoxicity
*amifostine (Ethyol) is give to prevent nephrotoxicity
**HIGHLY emetogenic (give 3 N/V drugs)
**Limit dose to 100 mg/m2/cycle
SE: myelosuppression
Platinum-based compounds: Carboplatin
-myelosuppression is dose related
**dosed based on calvert formula: (Target AUC) (eGFR + 25)
AUC= 2-8, GFR capped at 125, may use crcl
Anthracycline Facts
-associated with cardiotoxicity (HR and cardiomyopathy)
-strong vesicants –> dexrazoxane is used as an antidote for accidental doxorubicin (Totect) extravasation
-protect from light during administration
How to reduce Doxorubicin Cardiotoxicity
-keep track of lifetime cumulative Doxorubicin dose = 450-550 mg/m2 [dose in mg/m2/cycle * total # of cycles]
-Dexrazoxane may be considered when the doxorubicin cum dose > 300 mg/m2
Anthracycline drugs: Doxorubicin (Adriamycin)
-potent vesicant
BBW: myocardial toxicity, vesicant, myelosuppression
–> color is RED (causes discoloration of urine, tears, sweat & saliva)
**do NOT exceed more than lifetime dose of 450-550 mg/m2
–> Dexrazoxane (Totect, Zinecard) for extravasation and cardioprotection)
SE: N/V
Anthracycline Drugs: Mitoxantrone
BBW: myocardial toxicity
–> drug is BLUE: causes blue urine, sclera and other body fluids
Vinca Alkaloids facts
-cause peripheral sensory and autonomic neuropathies (constipation)
*for IV use only, fatal if given by other routes (Vincristine –> also has CNS toxicity, CAPPED AT 2 MG/DOSE)
-vinblastine and vinorelbine associated with bone marrow suppression
-potent vesicants = antidote –> hyaluronidase and warm compress
Topoisomerase I inhibitor: Irinotecan (Camptosar)
-block th coiling and uncoiling of the double-stranded DNA helix during the S phase
“I ran to the can”–> acute anticholinergic symptoms (add atropine to the bag)
-delayed diarrhea (treat with loperamide)
BBW: myelosuppression, diarrhea
Topoisomerase II inhibitor: Bleomycin & Etoposide
-block the coiling and uncoiling of the double stranded DNA helic during the G2 phase
**max lifetime dose of 400 units d/t pulmonary toxicity risk & NOT mylosupressive :)
SE: hypersensitivity risk
-E capsules: need to be refrigerated
-infusion rate-relates hypotension: infuse for at least 30-60 mins
Taxanes drug facts
-inhibit the function of microtubules during the M phase
-peripheral sensory neuropathies + infusion-related hypersensitivity reactions & fatal anaphylaxis can occur w/ all (except abraxane- albumin bound)
SE: alopecia
**give taxanes before platinum-based compounds
Taxanes Drugs : PDC
-Paclitaxel: premedicate w/ diphenhydramine, steroids, H2RA
-Paclitaxel (albumin bound): no need to premedicate
-Docetaxel: premedicare with steroids for 3 days–> causes severe fluid retention
-Cabazitaxel: premed with diphenhydramine, steroid, H2RS (famatodine)
Pyrimidine Analog antimetabolites: Fluorouracil, 5-FU
-give w/ Leucovorin to inc efficacy (helps fu to bind more tightly to its target enzyme)
BBW: sin inc in INR
SE: hand-foot syndrome, diarrhea, muscositis
–> uridine triacetate (vistogard) can be given as antidote for overdose or toxicity due to DPD deficiency
Pyrimidine Analog antimetabolites: Capesitabine (Xeloda)
-oral prodrug of fluorouracil: 2 divided doses 12 hrs apart, given w/ water within 30 mins of a meal take for food
–> dihydropyrimidine dehydrogenase (DPD) deficiency inc risk of severe toxicity
SE: hand-foot syndrome, diarrhea, muscositis
–> uridine triacetate (vistogard) can be given as antidote for overdose or toxicity due to DPD deficiency
Folate antimetabolites facts
-block purine and pyrimidine biosynthesis during S phase
-folic acid +/- vitamin b12 may be required to reduce toxicity (myelosuppression, mucositis, diarrhea)
**w/ high doses of methotrexate –> give leucovorin/levoleucovorin “rescue” must be given
Folate antimetabolite: Methotrexate (Trexall)
-high dose (500 mg) requirs leucovorin
-hydration with IV sodium bicarb given to: alkalinize the urine & decrease nephrotoxicity
*Glucarpidase (voraxaze) given as antidote that rapidly lowers drug levels
DDI: NSAIDs, salicylates, PPIs
BBW: myelosuppression, renal damage, hepatotoxicity, tetratogencity
SE: nephrotoxicity, nausea, mucositis
Misc cancer drugs: Tretinoin
-do not use in pregnancy
-1st line for retonoic acid-acute promyelocytic leukemia syndrome
Misc cancer drugs: Arsenic trioxide
-worst/most QT prolonging drug
Misc cancer drug: Everolimus
-mTOR inhibitor: inhibits downstream regulation of vascular endotheilail growth factor (VEGF) reducing cell growth, metabolism, proliferation and angiogenesis
-SE: mouth ulcers, stomatitis, rash
Misc cancer drugs: Immunomodulators
-lenalidomide, pomalidomide, thalidomide
*cause the WORST birth defects = REMS drugs–> baby missing long bones in arms and legs
VEGF inhibitor: Bevacizumab (Avastin)
-impairs wound healing: do NOT administer for 28 days before or after surgery
BBW: severe/fatal bleeding , GI perforation
HER2 Inhibitors: Trastuzumab (Herceptin)
-only used for over expression of HER2 genes (HER2/NEU)
-cardiotoxicity