Intestine Bacteria and Breast Cancer Risk

Completed

Conditions studied: Breast Neoplasms

In brief

Background: \- Some bacteria found in the large and small intestines help keep people healthy and aid digestion. They may also affect a person s risk of developing cancer. Researchers want to study the relationship between intestinal bacteria and breast cancer risk factors. They can do this by looking at stool and urine samples from postmenopausal women. Objectives: \- To study intestinal bacteria and its relationship to urine-based markers of breast cancer risk in women. Eligibility: \- Women between 55 and 69 years of age with a recent mammogram that showed no signs of cancer. Design: * Participants will be screened with a medical history and basic health questionnaire. * At home, participants will complete questionnaires about cancer risk factors and food consumption. * Participants will also collect urine and stool samples. They will send the samples to the designated labs for study. * No treatment will be provided as part of this protocol.

Key facts

Study ID

NCT01461070

Run by

National Cancer Institute (NCI)

People needed

175

Starts

2011-08-10

Expected to finish

2020-05-22

Last updated by the study team

2020-05-27

Who can join

Age: 50 and older, up to 69. Sex: female. Healthy volunteers: not accepted.

You may not qualify if…

• History of cancer, except non-melanoma skin cancer
• History of inflammatory bowel disease or diverticulitis
• History of gastric banding or by-pass surgery
• History of other gastric or intestinal surgery within the previous 6 months
• Hormone prescription within the previous 12 months
• Antibiotic prescription within the previous 6 months.

Where it is running

• Kaiser Permanente Colorado — Denver, Colorado, United States

Full record on ClinicalTrials.gov

Trial information comes from ClinicalTrials.gov and is refreshed daily. TrialsForMe does not provide medical care and does not run the studies it lists.