Breast Cancer Flashcards
3 SERM
tamoxifen
toremifene
raloxifene
Steroidal estrogen receptor down regulator (antagonist?)
fulvestrant (Faslodex)
aromatase inhibitors 3
anastrozole
exemestane
letroxole
Tamoxifen is typically given ..
post surgery or chemo
tamoxifen 4 uses
prevention in high risk women
ductal carcinoma in situ - lower risk of invasive cancer
metastatic breast cancer therapy
add on therapy for breast cancer
6 tamoxifen warnings
- hypercalcemia
- uterine malignancies
- endometrial hyperplasia/polyps
- DVT or PE
- liver abnormallites
- ocular distrubances
tamoxifen uses what p450 enzymes
3A4/5, and 2D6
how is tamoxifen excreted?
via the stool
why do about 1/3 not respond to tamoxifen?
variations in 2D6
possible interaction between tamoxifen and what type of meds?
antidepressants
tamoxifen can increase endometrial cancer risk by
2 to 3 times
tamoxifen drug interactions 5
- warfarin
- anastrozole/letrozole (aromatase inhibitors)
- rifampin
- Paroxetine, fluoxetine (antidepressants)
- bupriopion (antidepressant and smoking cessation)
raloxifene is approved for
breast cancer prevention in high risk post menopausal women
raloxifene
fewer cases of clotting, cataracts, and uterine cancer than tamoxifen
ospemifene is a ___
SERM: selectie estrogen receptor modulator ..sometimes agonist or antagonist in differet tissues
ospemifene indication
dyspareunia from volvovaginal due to menopause
CI for ospemifene
DVT, PE or history, CVA, MI or history, pregnancy, neoplasia, undx genital bleeding
__ is a derivative of tamoxifen
toremifene
tomremifene indication
for mestastatic breast cancer post menopausal women
ADR toremifene
hot flashes, cataracts, LFT high, clots, sweat/edema/N
hypercalcemia, QT prologation dose dep, endometrial hyperplasia
toremifene is effective as
tomoxifene
bazodexifene/CE indicated for
moderate to severe vasomotor sx
prvt post menopausal osteoporosis
black box warning bazodeifene
women with a uterus - endometrial cancer
higher risk CVA or DVT
yet prvts EVD or dementia
breast cells have high concentration of ___
aromatase
2 nonsteroidal aromatase inhibitors
anastrozole and letrozole
steroidal aramoatase inhibitor
exemestane (Aromasin)
first line for adjuvant breast cancer tx in post menopausal women
exemestane
___ is a suicide inhibitor of aromatase
exemestane
risks of exemestane
higer risk osteoporosis , fracture
cardiovascular issues
___ class of breast cancer med can lead to increase bone groths in short boys and increase testosterone levels in adult men?
aromatase inhbitors
____ is best hormonal therapy to start for breast cancer when it is early stage and hormone receptor positie
aromatase inhibitors have more benefits and fewer serious side effects
SERD
selective estrogen receptor down regulator
fulvestrant
pure antiestrogen
SERD
inhibits and degrades estrogen receptors
fulvestrant use
indicated post menopause with breast cancer that progressed while on tamoxifen
fulvestrant ADR
no p450 interactions
N, asthenia, hot flashes, headache
give injections slowly to decrease a reaction