Status
Conditions
Treatments
Study type
Funder types
Identifiers
About
RATIONALE: Studying samples of blood and breast tissue from healthy women in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to breast cancer risk.
PURPOSE: This research study is looking at breast tissue in women not previously diagnosed with breast cancer who are undergoing fine-needle aspiration.
Full description
OBJECTIVES:
Primary
OUTLINE: This is a multicenter study.
Premenopausal women are stratified by menstrual cycle phase (mid-follicular [day 5-10] vs mid-luteal [day 20-25]), based on an adjusted 28-day cycle.
Patients undergo breast density measurement by digital mammography. Blood samples are obtained and analyzed for estradiol, progesterone, and follicle-stimulating hormone measurements, to define menstrual/menopausal status, and for DNA extraction. Patients also undergo random fine needle aspiration. Biopsy material from aspiration is analyzed for cytomorphology, steroid radioimmunoassay (RIA), steroid nanoassay, and DNA methylation studies (via polymerase chain reaction). The aspiration samples are also analyzed for estradiol and progesterone levels using high-pressure liquid chromatography and RIA.
Enrollment
Sex
Ages
Volunteers
Inclusion and exclusion criteria
DISEASE CHARACTERISTICS:
Women meeting one of the following requirements:
No history of breast cancer diagnosis or prior treatment for breast cancer
Negative breast evaluation within the past 3 months
PATIENT CHARACTERISTICS:
PRIOR CONCURRENT THERAPY:
385 participants in 3 patient groups
Loading...
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal