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Spots Global Cancer Trial Database for The Ultrasound Study of Tamoxifen

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Trial Identification

Brief Title: The Ultrasound Study of Tamoxifen

Official Title: The Ultrasound Study of Tamoxifen

Study ID: NCT01582074

Interventions

Study Description

Brief Summary: Background: - Studies have shown that changes in breast density (the amount of white area on a woman's mammogram) may be related to changes in breast cancer risk. Currently, there is no ideal way to measure breast density repeatedly over time. Researchers want to test whether ultrasound tomography scans can show changes in breast density. To examine these changes, healthy volunteers with no history of breast cancer and women who are taking tamoxifen will have ultrasound tomography scans. Objectives: - To test whether ultrasound tomography scans can show changes in breast density related to tamoxifen exposure. Eligibility: - Women between 30 and 70 years of age who are (a) taking tamoxifen or (b) healthy volunteers who have never had breast cancer. Design: * All participants will have a screening visit. Healthy volunteers will have one additional study visit; women taking tamoxifen will have three additional study visits. * All participants will be screened with a physical exam and medical history. They will also give blood and saliva samples. This visit will also include an initial ultrasound tomography breast scan. * For the healthy volunteers: * At the study visit (12 months after the screening visit), participants will have a short interview and be weighed. They will also have an ultrasound tomography breast scan and provide a blood sample. * For the women taking tamoxifen: * At the second and third visits (1 to 3 months and 3 to 6 months after starting tamoxifen), participants will have a short interview. They will also be weighed and have an ultrasound tomography breast scan. * At the fourth visit (12 months after starting tamoxifen), participants will have a short interview, weight measurement, and the ultrasound tomography breast scan, and will also provide a blood sample. * All participants may be followed for up to 5 years after their final study visit.

Detailed Description: Elevated breast density is one of the strongest risk factors for non-familial breast cancer \[1\]. Recently, the International Breast Cancer Intervention Study-1 (IBIS-1) trial reported that women whose mammographic density declined by 10% within 12-18 months of initiating tamoxifen chemoprevention also had a marked reduction in cancer risk \[2\]; however, preliminary data suggested that in 30% of patients, tamoxifen failed to lower density and did not reduce cancer risk. Therefore, we hypothesize that breast density represents a biosensor of tamoxifen response, reflecting bioavailability and action of active drug metabolites. Distinguishing tamoxifen responders from non-responders at the earliest time point would have value for making informed treatment decisions, providing a rationale for continued therapy among responders while sparing non-responders exposure to ineffective treatment. We propose to use a novel ultrasound tomography (UST) scanner to repeatedly assess volumetric breast density among 150 women during their first year of tamoxifen use for clinical indications, including a referral from a health professional based on a woman s personal risk of breast cancer or a diagnosis of atypical lobular or ductal hyperplasia (ALH/ADH), ductal carcinoma in situ (DCIS), lobular carcinoma in situ (LCIS), or invasive breast cancer, to assess whether tamoxifen-related declines in mammographic density found at 12 months can be identified earlier with UST. UST is ideally suited for this application because it produces volumetric data and avoids artifacts secondary to breast compression and exposure to potentially harmful ionizing radiation. For comparison, we will perform UST on a group of 150 age-, race-, and menopausal status-matched women without breast cancer in order to assess changes in UST density over time without tamoxifen exposure. The specific goal of this project is to utilize UST to describe the early time course of volumetric breast density change. The broader objective is to assess the concept of breast density as a biosensor of tamoxifen response and UST as a useful tool for making this determination.

Eligibility

Minimum Age: 30 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: FEMALE

Healthy Volunteers: No

Locations

Henry Ford Health Systems, Detroit, Michigan, United States

Contact Details

Name: Gretchen Benson, Ph.D.

Affiliation: National Cancer Institute (NCI)

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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