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Spots Global Cancer Trial Database for Pre-analytical Factors Affecting ctDNA Analysis in Early and Locally Advanced Breast Cancer

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Trial Identification

Brief Title: Pre-analytical Factors Affecting ctDNA Analysis in Early and Locally Advanced Breast Cancer

Official Title: Pre-Analytical Factors Affecting ctDNA Analysis in Early and Locally Advanced Breast Cancer

Study ID: NCT05945290

Study Description

Brief Summary: This study evaluates pre-analytical factors affecting circulating tumor deoxyribonucleic acid (ctDNA) analysis in breast cancer that not spread beyond the breast and or lymph nodes (early and locally advanced). ctDNA refers to freely circulating tumor DNA fragments found in the blood plasma. Pre-analytical factors such as blood collection tubes, delays in separation of plasma, centrifugation speeds, storage conditions, shipping and DNA extraction methods can all affect ctDNA measurements. Inappropriate processing can cause breaking down of the membrane (lysis) of peripheral blood cells that release background wild-type DNA and may also cause degradation of circulating tumor-specific DNA fragments. Both mechanisms will dilute levels of ctDNA in plasma and make it more difficult to detect. Evaluating the pre-analytical factors of the collection of blood and left over tissue samples for the research of cancer may help researchers to evaluate the impact of the blood collection/processing and long-term storage from patients with locally advanced breast cancer.

Detailed Description: PRIMARY OBJECTIVES: I. To evaluate the impact of blood collection/processing. II. To evaluate the impact of long-term storage of plasma and extracted DNA. OUTLINE: This is an observational study. Patients undergo blood sample collection throughout the study. Patients also undergo collection of leftover tissue samples from standard of care (SOC) procedures and have medical records reviewed.

Keywords

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: FEMALE

Healthy Volunteers: No

Locations

Mayo Clinic in Arizona, Scottsdale, Arizona, United States

Contact Details

Name: Barbara A. Pockaj, M.D.

Affiliation: Mayo Clinic

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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