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183 Cards in this Set
- Front
- Back
Trastuzumab
(mAb) |
immunosuppressive agent
recombinant mAb that binds epidermal growth factor receptor and down regulates it Clinical use: Breast cancer HER-2/neu |
|
Rituximab (mAb)
|
murine mAb that binds CD20 on B-cells and activates complement mediated lysis, ADCC, and apoptosis
|
|
Clinical use of Rituximab (mAb)
|
RX of:
Follicular B-cell lymphoma Non-hodgkins lymphoma |
|
Daclizumab
|
Binds CD25 and functions as IL-2 antagonist and suppresses lymphocytic activation
|
|
Clinical use of Daclizumab
|
Organ transplants in comb with glucocorticoids and cyclosporine
|
|
Basiliximab
|
binds CD25 and functions as an IL-2 antagonist and suppresses lymphocytic activation
has higher affinity than Daclizumab |
|
Palivisumab
|
binds fusion protein of RSV
Prevents infection of the cell |
|
clinical use of Palivisumab
|
rx of neonates at risk for RSV
|
|
Abatacept
|
selective co-stimulation modulator
Binds CD80 and CD86 (on APC) blocking interaction with CD28 (T-cell) and leads to inhibition of autoimmune T-cell activation |
|
Clinical use of Abatacept
|
Rheumatoid arthritis
|
|
Prednisone
|
Glucocorticoid
Interferes with cell cycle activated lymphoid cells, inhibits production of pro-inflammatory mediators and inhibits leukocyte chemotaxis |
|
Clinical use of Prednisone
|
Immunosuppressive agent
|
|
Cyclosporine
|
immunosuppressive fat soluble peptide antibiotic
Binds cyclophilin and inhibits calcineurin and inhibits synthesis of IL- |
|
clinical use of Cyclosporine
|
prevents tissue rejection following transplant
|
|
Tacrolimus
|
immunosuppressive agent
similar to cyclosporine except complexes with FK binding proteins - Use in Organ transplants |
|
Sirolimus
|
immunosuppressive agent
- binds immunophilin-FK-BP - inhibits mTOR > prevents cell cycle progression G1>S - inhibits lymphocyte proliferation Clinical use: organ transplants |
|
Interferons
|
immunosuppressive agents
- inhibits cell proliferation and active NK cells |
|
Clinical use of Interferons
|
Melanoma
renal cell carcinoma CML |
|
alpha-interferon clinical use
|
anti-viral HBV & HCV
|
|
beta-interferon clinical use
|
treat MS
|
|
Azathioprine
|
derivative of mercaptopurine
- anti-metabolite that inhibits de novo protein synthesis Adverse effects: myeloid suppression |
|
Mycophenolate mofetil
|
derivative of mercaptopurine
- Hydrolyzed in GI tract to mycophrnolic acid - reversible inhibition of inosine monophosphatase dehydrogenase - no formation of guanosine phosphate - lymphocyte lack purine salvage pathway |
|
Clinical use of Mycophenolate mofetil
|
replacing azathiroprine due to increased safety and efficacy in prolonging graft survival
|
|
mechanism of action of Alkylating agents
|
transfer alkyl group to various tumor cell targets
replicating cells are most susceptible primarily N7 position on guanine within DNA |
|
Resistance of Alkylating agents in the treatment of neoplasms
|
increased DNA repair
Increased Glutathione production Decreased permeability of drug |
|
Cyclophosphamide
|
alkylating agent
-Bischlorethylamine - converts to active metabolite by P450 system in the liver - Non-enzymatic conversion to additional cytotoxic forms in non-hepatic tissue |
|
Toxicity of cyclophosphamide
|
hemorrhagic cystitis
|
|
Carmustine
|
alkylating agent
- Nitrosurea - non-resistance with other alkylating agents - non-enzymatic conversion to active form - highly lipid soluble > crosses BBB |
|
Procarbazine
|
methylhydrazine derivative
- inhibits DNA, RNA, and protein via alkylation - Azoprocabazine + H2O2 generated during metabolism > DNA strand breaks |
|
Cisplatin
|
inorganic platinum complex
cross links DNA via interaction at N7 guanine toxicity: aggressive IV hydration needed to reduce nephrotoxicity |
|
Carboplatin
|
2nd generation Inorganic platinum complex
cross links DNA via interaction of N7 guanine - less renal toxicity than Cisplatin |
|
Oxaliplatin
|
3rd generation inorganic platinum complex
- cross links DNA via interaction of N7 guanine - cells resistant to Cisplatin and Carboplatin NOT resistant to this drug |
|
Methotrexate
|
folic acid antagonist
inhibitor of DNA synthesis and integrity - binds catalytic site of DHF-reductase - interferes with DNA, RNA, protein synthesis - Polyglutamate of MTX retained within the tumor cells -NON-cell cycle dependent |
|
resistance to MTX occurs because?
|
decreased drug transport
decreased polyglutamate formation increased DHFR-synthesis Decreased affinity of DHFR for MTX |
|
Mercaptopurine (6-MP)
|
purine antagonist
- inhibitor of DNA synthesis and integrity - Metabolized by HGPRT to nucleoside form - inhibits several enzymes in purine metabolism pathways - NON-cell cycle dependent |
|
Toxicity of Mercaptopurine
|
hyperuricemia due to tumor cell lysis
rx with allopurinol to prevent nephrotoxicity and gout requires decreased 6-MP does |
|
drug resistance to Mercaptopurine
|
drug resistance due to decreased HGPRT activity
|
|
Cladribine
|
purine antagonist
inhibitor of DNA synthesis and integrity non-cell cycle dependent |
|
resistance to Cladribine due to?
|
resistance due to adenosine deaminase (high cellular concentration)
|
|
Flurouracil MOA
|
Pyrimidine antagonist
- Fdump: forms complex with thimydilate synthase > NO thymidilate > NO DNA synthesis FUTP: incorporated into RNA and interferes with RNA processing and mRNA translation FdUTP: incorporated into DNA & inhibits synthesis |
|
clinical use of Flurouracil
|
Colorectal cancer
|
|
Capecitabine
|
pyrimidine antagonist
- Fluropyrimidine carbamate prodrug - converted to Flurouracil in the tumor by thymidine phosphorylase |
|
clinical use of Capecitabine
|
metastatic breast cancer
|
|
Cytarabine
|
pyrimidine antagonist
cytosine arabinoside (Ara-C) - metabolized to active triphosphate nucleoside - S PHASE Specific metabolite - Competitively inhibits DNA polymerase > incorporates with DNA/RNA > interfering with chain elongation |
|
Clinical use of Cytarabine
|
Acute Myelogenous leukemia
- highly schedule dependent |
|
Vinblastine
|
plant alkaloid derivative of periwinkle
- depolymerize microtubule by binding tubulin > assembly termination > MITOTIC ARREST |
|
clinical use of Vinblastine
|
Hodgkins lymphoma
Non-hodgkins lymphoma breast cancer |
|
Vinicristine
|
plant alkaloid derivative of periwinkle
depolymerize microtubule by binding tubulin > assembly termination > MITOTIC ARREST |
|
clinical use of vinicristine
|
ALL in children
Hodgkins lymphoma Non-Hodgkins lymphoma Ewing's sarcoma Wilms tumor Breast cancer with Mitomycin |
|
Etoposide
|
plant alkaloid: semi synthetic mayapple root
- blocks cell division in late S2-G phase of cell cycle - inhibits topoisomerase II > DNA strand breakage |
|
Clinical use of Etoposide
|
Germ cell cancer
Lung cancer Hematologic malignancies Gastric cancer |
|
topotecan
|
plant alkaloid campototheca acuminate tree
inhibits topoisomerase I: for cutting and religating single DNA strands |
|
clinical use of topotecan
|
Advanced ovarian cancer when platinum based agents have failed
|
|
Paclitaxel
|
plant alkaloid Taxane from yew tree
- binds microtubules and enhances tubulin polymerization in the absence of key microtubules components > inhibition of mitosis and cell division |
|
clinical use of Paclitaxel
|
solid tumors
|
|
Dactinomycin
|
antibiotic
- binds DNA b/t adjacent guanine-cytosine base pairs > inhibits RNA synthesis |
|
clinical use of Dactinomycin
|
Pediatric tumors
|
|
Mitomycin
|
antibiotic
metabolized to an alkylating agent that cross-links DNA |
|
clinical use of Mitomycin
|
Breast cancer with Vincrinstine
|
|
Bleomycin
|
antibiotic
small peptide with DNA binding region at one end and iron binding domain at the other end - bind DNA and Iron > oxidized leading to chromosomal aberrations - accumulation of cells in the G2 phase |
|
Toxicity of Bleomycin
|
dose reduction necessary in renal insufficiency
- pulmonary fibrosis |
|
Doxorubicin
|
antibiotic
inhibition of topoisomerase II DNA binding and inhibition of DNA synthesis Bind cell membrane and alter fluidity and ion transport Generation of ROS |
|
Clinical use of Doxorubicin
|
Rx of hematologic malignancies and solid tumors
|
|
toxicity of Doxorubicin
|
cardiotoxicity
|
|
Danorubicin
|
antibiotic
inhibition of topoisomerase II DNA binding and inhibition of DNA synthesis Bind cell membrane and alter fluidity and ion transport Generation of ROS |
|
Clinical use of Danorubicin
|
Rx of AML
|
|
Tamoxifen
|
anti-steroid agent
Binds estrogen receptor of estrogen dependent tumors low affinity than estradiol for receptor > endogenous estrogen must be ablated |
|
clinical use of Tamoxifen
|
estrogen receptor positive breast cancer
|
|
Flutamide
|
anti-steroid agent
anti-androgen effects via binding to receptor |
|
clinical use of Flutamide
|
Prostate cancer
|
|
Leuprolide
|
hormone agonist
synthetic peptide analog of GnRH - activates GnRH leading to transient release of FSH/LH > desensitization of receptors > reduced FSH/LH release > decreased testosterone |
|
clinical use of Leuprolide
|
androgen + tumors
prostate cancer |
|
Anastrozole
|
aromatase inhibitor
non-steroid inhibitor of aromatase |
|
Anastrozole clinical use
|
metastatic breast cancer in post-menopausal women
|
|
Exemestane
|
aromatase inhibitor
steroidal hormone that irreversibly inhibits aromatase - no cross resistance between this and non-steroidal aromatase inhibitors |
|
Imatinib
|
anti-cancer mAb
inhibits oncoprotein tyrosine kinase that promotes abnormal proliferation and anti-apoptotic pathways |
|
clinical use of Imatinib
|
Breast cancer
- ABL - Chronic myeloid leukemia - c-Kit (GI stromal tumors) |
|
Asparaginase
|
hydrolyzes circulating L-asparagine > aspartic acid and ammonia
NO protein synthesis |
|
clinical use of Asparaginase
|
ALL in pediatrics
|
|
Sorafenib
|
anti-cancer mAb
multikinase inhibitor of kinases involved in angiogenesis and intracellular signaling > decrease tumor growth |
|
clinical use of Sorafenib
|
renal cell carcinoma
|
|
Nelarabine
|
pro-drug deoxyguanosine analog
metabolized to ara-GTP and disrupts DNA synthesis > induces apoptosis |
|
Clinical use of Nelarabine
|
lymphoblastic leukemia
|
|
Lenalidomide
|
thalidomide analog
anti-angiogenic, anti-inflammaotry actions, & enhances anti-cancer activity of T-cells and NK cells |
|
clinical use of Lenalidomide
|
myelodysplastic syndrome
|
|
Amphotericin B
|
antifungal/polyene antibiotic
MOA: binds ergosterol in fungal membrane > increases membrane permeability > release of cytoplasmic contents |
|
T/F
Amphotericin B has renal toxicity in 80% of patients |
True
|
|
Does amphotericin B penetrate the CNS?
|
poor CNS stimulation
|
|
Nystatine
|
polyene antibiotic/antifungal
- binds ergosterol inf fungal membrane > increases permeability anda release cytoplasmic contents |
|
clinical use of Nystatine
|
only CANDIDIASIS
|
|
Itraconazole
|
azole/antifungal
MOA: inhibits 14-a-demthylase > no conversion of lanosterol > ergosterol > disrupts cell membrane increases 14-a-demethylsteroids > impaired ATPase and enzymes of the electron transport system |
|
clinical use of Itraconazole
|
DOC for blastomycosis (lung)
Onychomycosis (nail) |
|
Is Itraconazole affected by gastric and food activity?
|
YES
- capsule: fed state - solution: fasting state administration |
|
Fluconazole
|
for prevention of Cryptococus meningitis in AIDs & for Candida (esophagus, UTI, vagina)
|
|
Is Fluconazole affected by gastric activity or food?
|
NO
|
|
how is Fluconazole eliminated from the body?
|
renal elimination
|
|
does Fluconazole penetrate the CNS?
|
YES
excellent BBB penetrator |
|
Ketoconazole
|
phased out due to more drug interactions and decreased CNS use and activity
|
|
Voriconazole
|
treatment of Aspergillus and Candidia
|
|
Toxicity associated with Voriconazole
|
photophobia and chromatopsia
- 60X more potent than Fluconazole |
|
Posaconazole
|
prophylaxis in immunocompromised patients
|
|
Clotrimazole
|
topical for Candida (mouth, throat, vagina, vulva)
Dermatophyte (athletes foot, jock itch) |
|
T/F
Clotrimazole is NOT effective against infections of the scalp or nails |
True
|
|
Naftifine
|
allylamines/antifungal
inhibits squalene mono-oxygenase > NO conversion of squalene to lanosterol > decreased ergosterol > disrupts the cell membrane |
|
clinical use of Naftifine
|
topical for superficial dermatophyte infections
|
|
Terbinafine
|
allylamine/antifungal
inhibits squalene mono-oxygenase > NO conversion of squalene to lanosterol > decreased ergosterol > disrupts cell membrane |
|
clinical use of Terbinafine
|
Oral for onchomycosis
- accumulates in the skin, nails, and fat |
|
Caspfungin
|
Echinoccindins/antifungal
- administered IV - inhibition of b-(1,3)-glucan synthase > No formation of b-(1,3)-D-glucans in cell wall |
|
clinical use of Caspfungin
|
Candida for azole resistant infections
|
|
Anidnlafungin
|
Echinoccindins/antifungal
- inhibits b-(1,3)-glucan synthase > no formation of b-(1,3)-D-glucans in cell wall |
|
clinical use of Anidnlafungin
|
intra-abdominal abscesses caused by Candida and esophageal candidiasis
|
|
Flucytosine
|
Fluorinated pyrimidine accumulated by fungal cells
-converts 5-FU by cytosine deaminase > incorporates into fungal RNA and disrupts protein synthesis because 5-Flurodeoxyuridylic acid > inhibits thymidilate synthase > impaired DNA synthesis |
|
T/F
Flycytosine doesn't affect human cells because they do not have cytosiene deaminase |
true
|
|
Griseofulvin
|
antifungal
- accumulates in keratin precursor cells of skin, hair, nails > interacts with polymerized microtubules > disrupts function binding sites of Colchine and vinca alkaloids > prevents Mitosis of Dermatophyte |
|
T/F
the absorption of Griseofulvin is enhanced by taking with a fatty meal |
true
|
|
Does Griseofulvin induce the CYP3A4 system?
|
YES
may cause decreased levels of drugs metabolized by CYP3A4 system |
|
Mechanism of action of Nucleoside analogs that are anti-viral medications
|
prodrug initially phosphorylated by viral thymidine kinase (only affects infected cells)
converted to active metabolites by host kinase competitively inhibits viral DNA polymerase NO synthesis of viral DNA |
|
Acyclovir
|
nucleoside analog
- incorporates into viral DNA and terminates elongation |
|
Clinical use of Acyclovir
|
HSV
VZV Prophylaxis for CMV |
|
how does resistance to Acyclovir occur?
|
thymidine kinase activity is lost
|
|
does acyclovir eliminate the virus?
|
NO
it decreased viral shedding decreases time to heal prevents viral replication |
|
Famciclovir
|
nucleoside analog
- is converted to peniciclovir (topical) after absorption > topical for herpes |
|
clinical use of Famciclovir
|
topical for herpes and shingles
|
|
Ganciclovir
|
nucleoside analog
administered IV or orally |
|
Ganciclovir clinical use
|
effective against CMV (retinitis)
Oral prophylaxis |
|
Toxicity of Ganciclovir
|
leucopenia
thrombocytopenia |
|
T/F
Ganciclovir is 100X more active against CMV than acyclovir |
True
|
|
what makes Cidofovir a significant nucleoside analog that is effective against CMV?
|
activated independent of viral enzymes
|
|
toxicity of Cidofovir?
|
nephrotoxic
neutropenia metabolic acidosis |
|
Can a patient be treated with Cidofovir if they have renal insufficiency?
|
NO
Nephrotoxic |
|
Foscarnet
|
administered via IV
nucleoside analog MOA: no activation by viral or host kinase > blocks phosphate binding site on viral DNA polymerase > NO attaching of nucleoside precursor to DNA |
|
clinical use of Foscarnet
|
HSV, VZV, CMV
- acyclovir resistant |
|
toxicity associated with Foscarnet
|
renal and cardiac arrhythmias
|
|
mechanism of action of NTRI for treatment of HIV
|
converted to active triphosphate metabolite (nucleotide) by host kinase
compete for entry into viral DNA (catalyzed by reverse transcriptase) Causes DNA chain termination |
|
Didanozine
|
NTRI
Purine conger tx: HIV toxicity: pancreatitis & peripheral neuropathy |
|
Lamivudine
|
NTIR
pyramidine conger tx: HIV and orally effective against HBV toxicity: pancreatitis |
|
Stavudine
|
NTRI
Pyramidine conger tx: HIV other info: crosses BBB and renal excretion |
|
Emtricitabine
|
NTRI
Pyramadine conger tx: HIV |
|
Zidovudine
|
NTRI
pyramidine conger tx: HIV toxicity: bone marrow suppression, anemia, neutropenia |
|
Efavirenz
Nevirapine |
NON-NTRI
MOA: do not require metabolic activation, directly inhibits reverse transcriptase tx: HIV MC side effect is RASH |
|
Efavirenz toxicity
|
teratogenic
|
|
Nevirapine toxicity
|
induces P450 system
|
|
Protease inhibitors
|
Atazanavir
Lopinavir Ritonavir |
|
mechanism of action of protease inhibitors
(-ending -navir) |
binds to active site of HIV protease
production of immature non-infectious particles tx: HIV |
|
feature of Ritonavir
|
protease inhibitor that inhibits the metabolism of other protease inhibitors thereby increasing the half-life of other protease inhibitors
|
|
Protease inhibitor combination of choice
|
Lopinavir + Ritonavir
|
|
HIV Fusion inhibitors
|
Enfurvirtide
|
|
Enfurvirtide
|
HIV fusion inhibitor
- inhibits fusion of HIV with host cell by binding gp41 and not allowing viral entry into the cell |
|
administration of Enfurvirtide
|
Subcutaneous injection
|
|
Amantadine
Rimantadine |
drugs for tx of influenza
- prevents uncoating of influenze A particles following cell entry - inhibits viral M2 ion channel |
|
clinical use of Amantadine/Rimantadine
|
reduces duration and severity of influenza A infection when given within the first 48 hours of symptom onset
|
|
What must be done to the dose of Amantadine/Rimantadine if a patient has renal insufficiency?
|
dose reduction
|
|
Is Amantadine/Rimantadine effective against influenza B?
|
NO
|
|
Does amantadine/rimantadine cross the BBB?
|
Amantadine crosses the BBB
|
|
Oseltamivir
Zanamivir |
inhibits neurominidase in influenza A & B
inactivates respiratory mucus tract -osteltamivir can be used for prophylaxis |
|
Ribavarian
|
inhibits synthesis of viral nucleic acid > decreases guanosine triphosphate > inhibits host cell nucleic acid synthesis
-clinical use: Hepatitis and used alone for RSV |
|
INF-alpha
|
produced through DNA recombination > typically produced by host cell in response to viral infections > signals multiple pathways for induction of anti-viral proteins
clinical use: used alone for HBV combination with Ribavarian for HCV |
|
combination of INF-alpha and Ribavarian
|
HCV
|
|
Chloroquine contraindications
|
psoriasis
porphyria retinal abnormalities Myopathy Kaolin, Calcium/Mg antacids reduce absorption |
|
DOC for prophylaxis and treatment of malaria
|
Chloroquine
|
|
side effects of Quinine in the treatment of malaria
|
tinnitus
headache nausea dizziness flushing visual disturbances caution in: cardiac abnormalities contraindicated in Mefloquine |
|
what are requirements of treatment with Quinine for malaria?
|
only for treatment
only for 3 days only with doxycycline |
|
Quinidine
|
used for tx of malaria
shorter half life than quinine due to decreased protein binding |
|
Mefloquine
|
tx of malaria blood schizonticide
administered orally prophylaxis only give weekly for chloroquine resistant P. falciparum |
|
side effects of Mefloquine
|
contraindicated: quinidine, quinine, G6PD deficiency, epilepsy, psych disorders, cardiac conditions
adverse effects: N/V, dizziness, sleep and behavior disturbances |
|
what medication is used for prophylaxis of malaria in pregnancy?
|
Mefloquine
|
|
Primaquine
|
treatment of malaria in Gametocidal or Tissue schizonticide
|
|
contraindications of Primaquine
|
G6PD deficiency
Pregnancy Myelosuppression |
|
Pyrimethamine
|
used in combo with chloroquine for prophylaxis
MOA: inhibits dihydrofolate reductase |
|
Proquanil
|
used in combination with chloroquine for prophylaxis
MOA: inhibits DHFR |
|
what species of malaria can tetracycline, doxycycline, clindamycin, and azithromycin be used to treat?
|
all 4 species of malaria
|
|
Metronidazole clinical use
|
Ameobiasis: E.histolytica (trophozoites but not cyst)
Giardiasis Trichomoniais |
|
Tinidazole
|
ameobiasis
giardiasis trichomoniasis |
|
Iodoquinol
|
Luminal amebicide
-Luminal ameobiasis |
|
Paromomycin sulfate
|
luminal ameobiasis
- OTOTOXIC - less toxic and more effective than diloxanide ruoate |
|
Nitazoxanide
|
Giardiasis
- anti-protozoan - inhibits pyruvate ferredoxin oxidoreductase pathway |
|
Tinidazole
|
Giardiasis
|
|
Suramin
|
EARLY EAST African Trypanosomiasis (rodiensiense)
does NOT cross BBB |
|
Melarsoprol
|
LATE EAST African Trypanosomiasis
-crosses BBB |
|
Pentamindine
|
EARLY WEST African Trypanosomiasis (gambiense)
best known for its use in the tx of pneumocystis jiroveci |
|
Eflornithine
|
LATE WEST AFrican Trypanosomiasis (gambiense)
crosses BBB |
|
Nifurtimox
|
American Trypanosomiasis
- Chaga's disease |
|
Sodium stibogluconate
|
cutaneous leishmaniaisis
- sandflies |