Peptide Profiles of Women Undergoing Breast Biopsy

Study Overview
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Brief Summary
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This study is being done to learn about blood proteins. We want to see if the blood proteins in women whose biopsies show breast cancer are different from the blood proteins in women whose biopsies do not show breast cancer. The goal of this study is to develop a blood test than can help detect breast cancers when they are very small and easy to cure.

Detailed Description
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Despite currently available screening techniques, only 63% of breast cancer cases are diagnosed at a localized stage, for which the 5-year survival rate exceeds 95% (1). Advances in breast imaging are occurring, but further efforts to detect breast cancer at an early stage would be beneficial. Recently, new technologies which use mass spectrometric analysis to characterize the overall pattern of peptide expression in the serum or plasma have been developed. Preliminary studies have suggested that peptide profiles can be used to differentiate cancer patients from those without cancer for a variety of malignancies including breast cancer. If mass spectrometric analysis is able to detect differences in peptide profiles between early stage breast cancers and normal controls, this technique could be developed as a screening modality. The objective of the present study which is entitled Peptide Profiles of Women Undergoing Breast Biopsy is to determine whether the diagnosis of malignancy on breast biopsy is associated with a specific serum or plasma peptide profile which can be distinguished from the peptide profile associated with benign diagnoses on breast biopsy. To accomplish this, blood samples will be collected from 500 women undergoing breast biopsy and 100 women with metastatic disease. Samples will be obtained prior to the biopsies and analyzed by mass spectrometry. Residual material will be shared with investigators of the National Cancer Institute Clinical Proteomics Technology Assessment Consortium.

Official Title
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Peptide Profiles of Women Undergoing Breast Biopsy

Conditions
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Breast Cancer

Intervention / Treatment
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* Other: Blood draw


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Female Age ≥ or = to 18 Cohort A: Biopsy Cohort: Referred by a healthcare provider for breast biopsy No prior history of invasive breast cancer OR of ductal carcinoma in situ No prior history of other malignancies within 5 years except cervical dysplasia, squamous cell carcinoma of the skin or basal cell carcinoma of the skin Cohort B: Metastatic Disease Cohort - Diagnosis of stage IV breast cancer Exclusion Criteria: Male Age < 18

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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Female

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| 1<br>The first 250 samples will be used as a training set and results of these breast biopsies (benign or malignant) will be used to determine the peptide profile characteristic of a diagnosis of breast cancer on biopsy. | Other: Blood draw<br>* Peptide profiles from blood samples of all subjects will be determined by mass spectrometric analysis.<br>|
| 2<br>The predictive capacity of this profile will then be prospectively assessed using the next 250 samples, which will serve as a validation set. Subjects who are candidates for enrollment on cohort B of this study (metastatic disease) | Other: Blood draw<br>* Peptide profiles from blood samples of all subjects will be determined by mass spectrometric analysis.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| To identify the peptide profile associated with a diagnosis of malignancy on breast biopsy. |  | 2 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Breast Cancer, Breast biopsy