Biopsy-site-marker in Breast Cancer
Inflammation and Biopsy-site-marker in Breast Cancer (MOSAIC)
1 other identifier
observational
140
1 country
1
Brief Summary
The purpose of this study is to explore pro-metastatic changes in breast cancer (BC) associated with the stiffness of biopsy site markers. This study aims to determine whether the stiffness of a biopsy site marker promotes inflammatory changes in breast cancer and to evaluate whether there is a relationship between biopsy site marker stiffness and inflammation.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jul 2026
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 9, 2026
CompletedFirst Submitted
Initial submission to the registry
September 16, 2026
CompletedFirst Posted
Study publicly available on registry
September 22, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 1, 2030
September 22, 2026
September 1, 2026
2 years
September 16, 2026
September 16, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Proportion of Patients With Evaluable Tissue Samples.
To process 100 surgically resected breast tumors that had needle biopsy and biopsy site marker placement outside OKC downtown campus.
1 year
Differences in Stiffness of Tissue Samples Collected During Surgical Biopsy.
We will conduct a spatiotemporal analysis of surgically resected tissues to evaluate whether the stiffness of the chemical materials is associated with an anti-inflammatory microenvironment and a higher prevalence of epithelial-mesenchymal transition (EMT) in cancer cells. To better characterize these differences, we will assess phenotypic changes using multiplex immunofluorescence on resected surgical specimens with the biopsy site marker in place, enabling precise spatial localization and comparison of tissue responses over time.
1 Year
Secondary Outcomes (2)
Differences in Gene Expressions From Surgically Resected Tissue in Comparison To Those Associated With EMT.
1 Year
Number of Different Variations In Gene Expression From Surgically Resected Tissue Samples.
1 Year
Study Arms (1)
Breast Cancer Patients
140 patients will be assigned to this group.
Interventions
Tissue samples will be collected from Breast Cancer patients, stages I-III, who underwent lumpectomy (mastectomy) after biopsy site marker placement during image-guided biopsy.
Eligibility Criteria
Patients who received biopsy-site marker during diagnosis outside the OUBI OKC campus and were referred to OUBI for surgery as the first definitive treatment.
You may qualify if:
- Written informed consent (ICF) signed and dated by the patient prior to the performance of any study-specific procedures, sampling, or analyses.
- Female patients at \> 18 years of age at the time of signature of the ICF.
- Pathologically verified invasive breast cancer cases referred to OU for surgery.
You may not qualify if:
- Patients who had a biopsy at OUBI OKC.
- Patient who will undergo neoadjuvant therapy
- Any evidence of severe or uncontrolled systemic diseases, including uncontrolled hypertension, uncontrolled diabetes mellitus, active bleeding diatheses, or active viral infection, including hepatitis B, hepatitis C, and human immunodeficiency virus. Screening for chronic conditions is not required.
- Currently pregnant or breastfeeding
- Patients not eligible for surgery
- Prisoners
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
OU Health Stephenson Cancer Center
Oklahoma City, Oklahoma, 73117, United States
Biospecimen
Stage I-III resected tissue at the time of definitive treatment.
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Takemi Tanaka, PhD
University of Oklahoma - Stephenson Cancer Center
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 16, 2026
First Posted
September 22, 2026
Study Start
July 9, 2026
Primary Completion (Estimated)
July 1, 2028
Study Completion (Estimated)
July 1, 2030
Last Updated
September 22, 2026
Record last verified: 2026-09