Peptide Profiles of Women Undergoing Breast Biopsy

Memorial Sloan Kettering Cancer Center (MSK)

Status: Completed

Conditions: Breast Cancer

Treatments: Other: Blood draw

Study type: Observational

Funder types: Other

Identifiers

NCT00587821

06-003

Details and patient eligibility

About

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.

Full description

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.

Enrollment: 571 patients

Sex: Female

Ages: 18+ years old

Volunteers: No Healthy Volunteers

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

Trial design

571 participants in 2 patient groups

1

Description:

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.

Treatment:

Other: Blood draw

2

Description:

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)

Treatment:

Other: Blood draw