This observational study, NCT01000883, is collecting samples of tumor tissue and blood from people with breast cancer. Researchers want to understand how breast cancer behaves and how it responds to treatment by studying these samples in the lab. They will be looking for changes in DNA and identifying markers (biomarkers) that might be related to cancer. The study is open to adults aged 18 and older who have suspected or known breast cancer that can be safely biopsied. The main goal is to create a collection (biorepository) of these samples for current and future research. The study's current status is unclear, and it aims to enroll about 500 participants.

Study design

This is an observational study aiming to enroll about 500 participants. It is not testing a specific treatment but rather collecting information and samples.

What's involved

You would undergo a core biopsy (a procedure to take a small tissue sample) and have blood drawn at diagnosis, between chemotherapy treatments, and before definitive surgery.

Compensation

Not stated in the trial record.

Follow-up

The study aims to collect clinical data including long-term follow-up, but a specific duration is not provided.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.