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heme/onc
heme/onc
34
Accounting
Pre-School
03/13/2013

Additional Accounting Flashcards

 


 

Cards

Term
Rituximab
Definition
MOA: mab CD20, which is found on most B-Cell neoplasms

Use: Non-Hodkins Lymphoma, Rheumatoid arthritis (with methotrexate.
Term
Imatinib (Gleevec)
Definition
MOA: Inhibits Philadelphia chromosome (bcr-abl) tyrosine kinase

USE: CML, GI stromal tumos

Toxicity: Fluid retention
Term
Trastuzumab (Herceptin)
Definition
MOA: mab against breast cancers that express HER2 (erb-B2). (possible through antibody depenendent cytotoxicity)

Use: Metastatic Breast cancer (does not cross BBB)

Toxicity: Cardiotoxicity
Term
Tamoxifen, Raloxifene
Definition
MOA: SERMs- receptor antagonists in breast and agonists in bone. (blocks estrogen from binding to its recepter)

Use: 1) breast cancer 2) prevent osteoporosis

Toxicity: Tamoxifen- inc risk of endometrial carcinoma via partial agonist effect "hot flashes". (raloxifene is an endometrial antagonist and therefore does not have this effect)
Term
Prednisone
Definition
MOA: May trigger apoptosis. May even work on dividing cells Use: Most commonly used glucocorticoid in cancer chemotherapy. CLL, Hodgkins lymphoma (part of MOPP regimen) Tox: Cushing like symptoms, immunosuppression, cataracts, acne, osteoporosis, hypertension, peptic ulcers, hyperglycemia, psychosis.
Term
Hydroxyurea
Definition
MOA: inhibits Ribonucleotide Reductase-->dec DNA Synthesis (s-phase)

Use: Melanoma, CML, sickle cell (inc HbF)

Tox: bone marrow suppression, GI upst
Term
Cisplatin, Carboplatin
Definition
MOA: Cross link DNA

Use: Testicular, bladder, ovary, and lung carcinomas

Toxicity: nephrotoxicity, acoustic nerve damage

**admin with AMIFOSTINE(a free radical scavenger), and aggressive hydration to prevent negative SE**
Term
Vincristine, Vinblastine
Definition
Class: Microtubule inhibitors

MOA: bind tubulin in M-phase to block polymerization

Use: Hodgkins, Wilms tumor, Chorio carcinoma

Tox: Vincristine-NEUROTOXICITY (areflexia, peripheral neuritis), paralytic ileus

VinBLASTine-BLASTS Bone Marrow (suppression)
Term
Paclitaxel
Definition
Class: Microtubule inhibitors

MOA: prevents breakdown of mitotic spindle

Use: Ovarian and breast carcinoma

Tox: myelosuppression and hypersensitivity
Term
4 Primary anti tumor antibiotics

*BEDD*
Definition
Bleomycin
Etoposide (VP-16)
Dactinomycin
Doxorubicin
Term
Dactinomycin
Definition
Class: Antitumor antibiotic
MOA: Intercalates DNA

Use: Wilms, Ewing Sarcoma, Rhadbdomyosarcoma (used for childhood tumors)

Tox: Myelosuppression
Term
Doxorubicin (adriamycin), daunorubicin
Definition
Class: Antitumor Antibiotics
MOA: Generates free radicals. (noncovalently intercalates in DNA->breaks DNA->dec replication)

USE: Hodgkins, myeloma's,, sarcomas, and solid tumors (breast, ovary, lung)

Tox: CARDIOTOXICITY, myelosuppression, alopecia
Term
Bleomycin
Definition
Class: Antitumor antibiotics
MOA: induces free radicals that break DNA strands

use: TESTICULAR CANCER, Hodgkins.

Toxicity: PULMONARY FIBROSIS, skin changes, minimal myelosuppression
Term
Etoposide (VP-16), teniposide
Definition
Class: Antitumor antibodies
MOA: Inhibits TOPOisomerase II-->inc DNA degradation

Use: SMALL CELL CARCINOMA (lung & prostate), testicular carcinoma.

Tox: Myelosuppression, GI irritation, alopecia
Term
Cyclophosphamide, ifosfamide
Definition
Class: Alkylating Agents
MOA: Covalently cross links DNA at GUANINE N-7. (these drugs req bioactivation in liver)

Use: Non-Hodgkins lymp, breas and ovarian carcinomas, IMMUNOSUPPRESANT

Toxicity: Myelosuppression, HEMORRHAGIC CYSTITIS (acrolein is toxic metabolite-treat with MESNA)
Term
Nitrosoureas (carmustine, lomustine, semustine, streptozocin) mustard gas derivitives?
Definition
Class: Aklylating agents
MOA: requires bioactivation. Crosses the Blood BRAIN BARRIER!!

Use: BRAIN-tumors (inc. glioblastoma multiforme)

Tox; BRAIN:CNS toxicity-dizziness, ataxia
Term
Busulfan
Definition
Class: Alkylating Agents
MOA: Alklyates DNA

USE: CML. (also used to destroy pt's bone marrow before transplant)

Tox: pulmonary fibrosis, hyperpigmentation
Term
5 antimetabolites? what cell cycle phase do they target?
Definition
MTX, 5-FU, 6-MP, 6-TG, ara-C

all are S-Phase specific
Term
Methotrexate (MTX)
Definition
C: Antimetabolites
MOA: Folic acid analog that inhibits DIHYDROFOLATE reductase-> dec dTMP-->dec DNA & protein synthesis

Use: Leukemia, lymphomas, Choriocarcionoma, sarcomas. (also Abortion, ectopic pregnancy, RA, psoriasis)

Tox 1) myelosuppression (folic rescue w/ LEUCOVORIN) 2) macrovesicular fatty liver 3) mucositis. 4) TERATOGENIC
Term
Drug used to reverse Methotrexate toxicity
Definition
LEUCOVORIN (Folinic acid) rescue
Term
5-Fluorouracil (5-FU)
Definition
Class: Antimetabolite
MOA: PYRIMIDINE ANALOG. (5F-dUMP) that inhibits Thymidilate Synthase (dec dTMP which leads to dec DNA & Protein synthesis)

Use: Colon cancer, basal cell carcinoma (topical) solid tumors. (synergy with MTX)

1) myelosuppression which require THYMIDINE (not leucovorin) 2) Photosensitivity
Term
6 Mearcaptopurine (6MP)
Definition
Purine (thiol) analog--> dec de novo purine synthesis
*activated by HGORTase*

USE: Leukemia, lymphomas (not CLL or hodgkins)

Tox: Bone marrow, GI, liver. METABOLIZED by xanthine oxidase thus inc toxicity with allopurinol administration***
Term
6 thiogunanine (6-TG)
Definition
C: antimetabolite
MOA: same as 6MP
Use: ALL
Tox Mone marrow depression. CAN BE GIVEN WITH ALLOPURINOL
Term
Cytarabine (ara-C)
Definition
MOA: Pyrimdine antagonist--> inhibits DNA polymerase.

USE: AML, ALL, High Grad HODGKINS*

Tox: leukopenia, thrombocytopenia, megaloblastic anemia.
Term
Abciximab
Definition

MOA: binds glycoprotein receptor IIb/IIIa on activated platelets, prevents aggregation

 

Use: acute coronary syndromes, percutaneous transluminal coronary angioplasty

 

Tox: bleeding, thrombocytopenia

Term
Clopidogrel, ticlopidine
Definition

MOA: inhbit platelet aggregation by irreversibly blocking ADP recepters.  Inhibit fibrinogen bind by preventing glycoprotein IIb/IIIa expression

 

Use: Acute coronary syndrome, coronary stenting, dec recurrence of thrombotic stroke

 

Tox: Neutropenia (ticlopidine)

Term
Aspirin
Definition

MOA: acetylates and irreversibly inhibits COX 1&2, to prevent TXA2 formation.  INCREASE BLEEDING Time, but no effect on PT, PTT

 

Use: Antipyretic, analgesic, anti-inflammatory antiplatelet drug

 

Tox: gastric ulceration, hyperventilation, Reye's syndrome, tinnitus (CN VIII)

Term

Thrombolytics:

Streptokinase, tPA (alteplase) APSAC (anistreplase)

Definition

MOA: converts plasminogen to plasmin, whiche cleaves thrombing and fibrinn clots. increases PT, PTT, with no change in platelete count.

 

use: Early MI, early ischemic stroke

 

Tox: Bleeding. 

 

contraindicated in pt's with  active bleeding, history of intracranial bleeding, recent surgery, known bleeding diathesis, or sever hypertension.

 

Term
Drug used to treat toxicity of thrombolytics?
Definition
aminocaprocic acid
Term
Warfarin (coumadin)
Definition

MOA: interferes with the gamma carobylation of Vitamin K dependent clotting factos II, VII, IX, X, protein C and S.  Metabolized by cyp-450. Inc PT.

Long half life.

 

Use:  chronic anticoagulatant.  Not used in pregant women.  Follow PT/INR values

 

Tox: Bleeding, tetratogenic, skin/tissue necrosis, drug drug interaction. 

Term
Lepirudin, bivalrudin
Definition
Hirudin derivatives directly inhibit thrombin.  Used as an alaternative to heparin for anticoagulating pt's with HIT.
Term
Heparin
Definition

MOA: cofactor for the inactivation of antithrombin (dec thrombin and Xa) has a short half life

 

Use: immediate anticoagulation in PE, stroke, MI, DVT.  *used during pregnancy* follow PTT

 

Tox: bleeding, HIT, osteoporosis, d

For reversal of heparin tox use Protamine sulfate

 

Dosing: low molecular weight heparings (enoxaparin) act more on Xa, have better bioavailability and don't require monitoring.

Term
Heparin Induced Thrombocytopenia (HIT)
Definition

Mech:  heparing binds to platelet factor IV, causing antibody production that binds to and activates platelets leading to their clearance and thus resulting in thrombocytopenic hypercoagulable state

 

Treat: Protamine sulfate (positively charged molecule that binds to negatively charged heparin)

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