Life sciences · Observational Study
ClinicalTrials.gov · October 20, 2026
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Observational Study.
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Registry record from ClinicalTrials.gov (NCT00898508). This is a study registration, not published results. Lead sponsor: City of Hope Medical Center. Recruitment status: COMPLETED. Study type: OBSERVATIONAL. Enrollment: 563 participants (ACTUAL). Conditions: Breast Cancer. Interventions: GENETIC: gene expression analysis; GENETIC: mutation analysis; GENETIC: proteomic profiling; GENETIC: reverse transcriptase-polymerase chain reaction; OTHER: fluorescent antibody technique; OTHER: immunohistochemistry staining method; OTHER: laboratory biomarker analysis; OTHER: liquid chromatography; OTHER: mass spectrometry; OTHER: medical chart review; PROCEDURE: quality-of-life assessment. Primary outcome measures: Establishment of a specimen bank , 5 Years of specimen collection; Ability of the quantitative real-time reverse-transcriptase PCR (qRT-PCR) to distinguish between biopsy benign and malignant results , 5 years; Ability of the qRT-PCR to predict treatment response , 5 years; Ability of the qRT-PCR to predict relapse , 5 years; Ability of the qRT-PCR to perform as an independent prognostic factor , 5 years. Brief summary: RATIONALE: Collecting and storing samples of blood and tumor tissue from patients with cancer to test in the laboratory may help the study of cancer in the future. PURPOSE: This clinical trial is studying blood and tumor tissue samples in women with invasive breast cancer, ductal carcinoma in situ, lobular carcinoma in situ, or benign breast disease.