On December 1, 2017 OncoCyte Corporation (NYSE American:OCX), a developer of novel, non-invasive liquid biopsy tests for the early detection of cancer, reported that it will present data from its most recent breast cancer diagnostic study during a poster session at the 2017 San Antonio Breast Cancer Symposium (SABCS) on December 7, 2017 (Press release, BioTime, DEC 1, 2017, View Source;p=RssLanding&cat=news&id=2319585 [SID1234522329]). The SABCS will take place at the Henry B. Gonzalez Convention Center in San Antonio, Texas, from December 5-9, 2017.
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The data to be presented are from the Company’s NICE-BC (Non-Invasive Confirmatory dEtection (of) Breast Cancer follow-on study. The data confirm the findings from OncoCyte’s previous breast cancer study, which were presented at the San Antonio Breast Cancer Symposium (SABCS) in December 2016. In the earlier study, the 15-marker model resulted in an area under the curve (AUC) of 0.92 with a sensitivity of 90% and specificity of 76%. Given this level of accuracy, and subject to successful completion of further R&D and clinical studies, OncoCyte’s novel panel of serum protein biomarkers may become the foundation of a highly accurate, non-invasive breast cancer diagnostic test.
The AUC of a test is a measure that combines sensitivity and specificity to express its total accuracy, with 1.0 being perfect accuracy and 0.50 being a random result. Sensitivity and specificity are statistical measures of test performance, with sensitivity measuring the percentage of malignant lumps or masses that are identified correctly by the test and specificity measuring the percentage of benign lumps or masses correctly identified.
"We look forward to reporting data from our breast cancer diagnostic development program at this prestigious conference," said William Annett, President and Chief Executive Officer. "The data from our breast cancer studies are compelling and we look forward to continuing to advance the development program in 2018. We believe our test would address a significant unmet need by reducing the number of unnecessary invasive breast biopsies and lowering the financial burden to the healthcare system."
The data from the NICE-BC study will be presented at SABCS 2017 by Philip McQuary, Ph.D., Director, Product Development, at OncoCyte.
Abstract Title: Assessment of an immune response panel of serum protein biomarkers for the non-invasive detection of breast cancer
Poster Session: 2 (P2-02-03)
Session Title: Detection/Diagnosis: Circulating Markers
Session Date: December 7, 2017
Session Time: 7:00 am CT – 9:00 am CT
The current standard of care for breast cancer diagnosis – annual or biannual mammogram screenings – does not meet the needs of large populations of women for whom mammography alone is not sufficient. These populations include women with dense breast tissue, genetic mutations (BRCA), a family history of breast cancer, or those who have suspicious mammogram screening results (BIRADs 3 or 4). The Company’s non-invasive liquid biopsy breast cancer diagnostic is intended to be a confirmatory, post-mammogram test that would address the needs of some of these populations, thereby reducing the number of patients subjected to invasive procedures.
According to published reports, there are about 39 million mammograms performed annually in the U.S., resulting in 1.6 million breast biopsies per year. Of these, only 260,000 (16%) result in a cancer diagnosis. The large number of suspicious findings in diagnostic mammograms leads to a significant amount of unnecessary invasive follow-up procedures. The financial burden to the healthcare system imposed by the follow-up testing of false-positive mammograms and breast cancer over-diagnosis is estimated to be $4 billion a year.
About Breast Cancer
Breast cancer is the second most common cancer among US women. Current screening guidelines set forth by the American Cancer Society recommend screening mammography for the early detection of breast cancer in women at average risk. Specifically, guidelines call for annual mammography for asymptomatic women age 45 to 54 and once every two years for women age 55 and older. Suspicious screening mammograms are generally followed up with a diagnostic mammogram and sometimes by an MRI (Magnetic Resonance Image) or an ultrasound. Ultimately, suspicious findings unresolved by imaging typically result in the recommendation of a breast biopsy.