***Study now closed to recruitment***
Recruiting at: Royal Melbourne Hospital and Royal Womens Hospital
Primary Investigator: Professor Geoff Lindeman
Clinical trial register: ACTRN12614000695606
A window study of short-term pre-operative treatment with tamoxifen or letrozole in women with estrogen receptor (ER) positive breast cancer.
Women who are consented for the Breast Biomarker Project with histologically confirmed invasive ductal or lobular carcinoma and estrogen receptor positive disease are likely eligible for enrolment. There must be a clear intention to treat with surgery.