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