An Examination of Predictors of Indicators of Response to Letrozole 2.5 mg
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To assess the quantitative real time PCR results of oligonucleotide probes for a number of gene transcription products that may be useful as predictors or indicators of response to letrozole
Condition or disease
Drug: letrozole 2.5 mg
To assess the quantitative real time PCR results of oligonucleotide probes for a number of gene transcription products (PCNA, cyclin-D1, ER alpha, PR, pS2, 450 aromatase, bcl-2, bax, caspase-3, and VEGFR) that may be useful as predictors or indicators of response to letrozole
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Ages Eligible for Study:
18 Years and older (Adult, Senior)
Sexes Eligible for Study:
Accepts Healthy Volunteers:
evidence of hyperplasia with/without atypia upon random periareolar fine needle aspiration of breast
on hormone replacement therapy
increased risk of developing breast cancer based on personal or family history
never have taken aromatase inhibitors or selective estrogen receptor modulators in last six months
women who have a high risk of breast cancer
older than 18 years
no marked breast tenderness
not pregnant or within twelve months of breast feeding/childbirth