Studying Biomarkers in Nipple Fluid, Urine, and Blood Samples From Women With Newly Diagnosed Ductal Carcinoma In Situ or Stage I or Stage II Breast Cancer and in Women at Risk of Developing Breast Cancer
|ClinicalTrials.gov Identifier: NCT00897208|
Recruitment Status : Active, not recruiting
First Posted : May 12, 2009
Last Update Posted : February 6, 2018
RATIONALE: Studying samples of nipple fluid, urine, and blood in the laboratory from patients with cancer and from patients at risk of developing cancer may help doctors identify and learn more about biomarkers related to cancer. It may also help doctors learn more about breast cancer and identify patients at risk of developing breast cancer.
PURPOSE: This laboratory study is looking at biomarkers in nipple fluid, urine, and blood samples from women with newly diagnosed ductal carcinoma in situ or stage I or stage II breast cancer and in women at risk of developing breast cancer.
|Condition or disease||Intervention/treatment|
|Breast Cancer||Other: high performance liquid chromatography Other: laboratory biomarker analysis Other: mass spectrometry Other: medical chart review Procedure: evaluation of cancer risk factors|
- To determine the levels of catechol estrogens (CE), CE metabolites, CE-DNA adducts, and CE conjugates in nipple aspirate fluid samples obtained from women with newly diagnosed ductal carcinoma in situ or stage I or II breast cancer and from women at high risk of developing breast cancer.
OUTLINE: Patients with newly diagnosed breast cancer or at high risk of developing breast cancer undergo nipple aspiration. The nipple aspirate fluid is obtained from the unaffected breast and is analyzed for 31 estrogen metabolites, conjugates, and depurinating DNA adducts by high-performance liquid chromatography (LC) with electrochemical and mass spectrometric detectors. All patients undergo urine and serum sample collection. The urine samples are analyzed by ultraperformance LC monitored by tandem mass spectrometry for estrogen metabolites, conjugates, and depurinating DNA adducts.
Patients' charts are reviewed to obtain information about age, race, general health, any endocrine disorders, history of cancer, estrogen and progesterone receptor status, and HER2/neu status (for patients with newly diagnosed breast cancer), menopausal status, reproductive history, history of breast disease, medication use, smoking history, and history of alcohol consumption.
|Study Type :||Observational|
|Estimated Enrollment :||300 participants|
|Official Title:||Estrogen-DNA Adducts in Breast, Urine and Serum as Biomarkers of Breast Cancer Risk|
|Actual Study Start Date :||May 2005|
|Estimated Primary Completion Date :||September 2018|
|Estimated Study Completion Date :||September 2018|
- Comparison of the levels of estrogens, catechol estrogen (CE) metabolites, CE-glutathione conjugates, and CE-DNA adducts (N3Ade and N7Gua) among healthy women, high-risk women, and women with breast cancer
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00897208
|United States, Minnesota|
|Mayo Clinic Cancer Center|
|Rochester, Minnesota, United States, 55905|
|Principal Investigator:||Sandhya Pruthi, MD||Mayo Clinic|