Pharmacology Flashcards
What are the 2 groups/classifications of cytotoxic therapy?
Cell cycle -specific
Non cell cycle -specific
Cell cycle -specific cytotoxic therapy is relatively tumour specific. The dosage is more important than the duration of exposure. True/False?
False
Duration of exposure is more important than dosage
What are the 2 main cell cycle -specific cytotoxic agents?
Antimetabolites (impair nucleotide synthesis)
Mitotic spindle inhibitors
List some examples of antimetabolite cytotoxic agents
Methotrexate
6-Mercaptopurine
Hydroxyurea
List some examples of mitotic spindle inhibitors
PLANT DERIVATIVES
Vinca alkaloids (Vincristine)
Taxotere
Non cell cycle -specific cytotoxic therapy is not tumour specific. The dosage is more important than the duration of exposure. True/False?
True
What are the 2 main non cell cycle -specific cytotoxic agents?
Alkylating agents
Platinum derivatives
Cytotoxic antibiotics (anthracyclines)
Explain the mechanism of action of non cell cycle -specific cytotoxic agents
Bind to DNA bases
Impair RNA transcription
Break DNA strands by producing free radicals
Give an example of alkylating cytotoxic agents
Chlorambucil
List some examples of platinum derivative cytotoxic agents
Carboplatin
Cisplatin
List some examples of cytotoxic antibiotics
Daunorubicin
Doxorubicin
Idorubicin
List some immediate side effects of cytotoxic therapy
Bone marrow suppression
Gut mucosal damage
Hair loss (alopecia)
Give a long term side effect of anthracyclines
Cardiomyopathy
Give a long term side effect of vinca alkaloids
Neuropathy
Give a long term side effect of cisplatin
Nephrotoxicity
List some long term side effects of alkylating agents
Infertility
Secondary malignancy
Combination chemotherapy is used as therapy in haematological malignancy. What is intensifying chemo limited by?
Myelosuppression
How is myelosuppression overcome in patients on chemotherapy?
Use of growth factors
Using myelosupressive/non-myelosupressive agents
Identifying dose of active agents
List sources of stem cells used for transplantation
Tissue source (blood versus bone marrow) Patient source (autologous, allogenic from relative)
What is involved in progenitor cell transplantation?
Replacement of the bone marrow
What is the first line treatment for haematological malignancy?
Short course chemotherapy
Involved field radiotherapy
What form of adjuvant therapy is good in lymphoma?
Radiotherapy
What is the first line treatment for NHL?
Monoclonal antibody (RCHOP21) Chemotherapy
What is the first line treatment for chronic myeloid leukaemia?
Tyrosine kinase inhibitors
Imatinib