Provista Diagnostics' Study First to Show that Age Should Be Considered When Developing Diagnostic Assays

Tools

Provista Diagnostics' Study First to Show that Age Should Be Considered When Developing Diagnostic Assays

Breast cancer blood test results are first to demonstrate age-related differences in Tumor-Associated Antibodies (TAAbs); data presented at Miami Breast Cancer Conference

NEW YORK, March 11, 2016 /PRNewswire/ -- Provista Diagnostics, Inc., a company developing and commercializing proteomic-based diagnostic, prognostic and monitoring tests for cancers affecting women, today presented results of a study showing that age should be considered when developing diagnostic assays. The poster, presented at the Miami Breast Cancer Conference in Miami Beach, is the first to demonstrate age-related differences in Tumor-Associated Antibodies (TAAbs).

The study examined the TAAbs and Serum Protein Bio-markers (SPBs) of 492 women between the ages of 25-75 who received a BI-RADS 3 (probably benign) or BI-RADS 4 (suspicious) assessment from diagnostic imaging.  Age-related differences were found in the majority of individual protein biomarkers even when accounting for breast density and cancer prevalence.

The data further suggests that age 50 serves as a strong guide to when changes may occur in TAAb expression as hormone level changes associated with menopause may be a factor.   

"While there have been studies showing age being a factor in (SPB) expression, we believe this is the first study to examine whether there were age-related differences in the expression of TAAbs " said lead investigator Kasey Benson Ph.D. of Provista.  "These results show that there are differences in TAAb expression and this knowledge is extremely valuable as we continue to develop Videssa Breast® – a blood-test that detects the presence or absence of breast cancer – for women of all ages."

Videssa Breast® is able to analyze a patient's SPBs and TAAbs and can improve detection of early breast cancer , irrespective of breast density. With the results of their studies, Provista will now be able to produce two variations of Videssa Breast to account for changes in TAAbs due to aging.

"The data allows us to produce blood-based tests to provide accurate results regardless of age," said Susan Gross, M.D., Chief Medical Officer. "We have now evaluated Videssa Breast in more than 843 women to date and it has consistently shown a high degree of accuracy, when combined with imaging, in detecting the presence or absence of early breast cancers. Videssa Breast not only provides an important additional tool in the early detection of breast cancer but  can also reduce  false positives."

About Videssa Breast®

Videssa Breast® is the first blood test of its kind to provide early and accurate detection of breast cancer.   Videssa Breast® uses Provista's patented ProteoMark® technology that examines multiple Serum Protein Biomarkers (SPBs) and Tumor-Associated Autoantibodies (TAAbs) to detect, with high sensitivity and specificity, the presence or absence of breast cancer.

Videssa Breast® is a proteomic test that analyzes specific types of proteins in the blood. All cancer tumors emit protein biomarkers. When SPBs are detected in the blood, they provide a high degree of certainty that cancer is present, but they do not provide the evidence needed to determine cancer type. To provide specificity, Videssa Breast® also measures the presence of TAAbs, which are developed by the body to mount an attack against the specific cancer cells. The unique signature of breast cancer TAAbs provides the certainty on cancer type.

The combination of imaging (anatomical evidence) with a proteomic approach (biochemical evidence) offers a powerful detection model, and reduces the rate of both false negatives and false positives. Videssa Breast transforms the breast cancer detection paradigm and applies proteomic testing to bring clarity to imaging results.

About Provista

Provista Diagnostics is a privately held molecular diagnostics company focused on developing and commercializing a new generation of proprietary blood-based diagnostic, prognostic and monitoring tests designed to address the unmet needs in women's cancer, such as breast and gynecologic cancers. Provista Diagnostics' state-of-the-art, high-complexity clinical laboratory is accredited by the College of American Pathologists (CAP) and certified by the Centers for Medicare and Medicaid Services (CMS) to be compliant with the Clinical Laboratory Improvement Amendments (CLIA).

Additional information about Provista Diagnostics is available at ProvistaDx.com

Information about Provista Diagnostics' clinical trials is available at ClinicalTrials.gov

Safe Harbor Statement

Statements contained in this communication not relating to historical facts are forward-looking statements that are intended to fall within the safe harbor rule for such statements under the Private Securities Litigation Reform Act of 1995. The information contained in the forward-looking statements is inherently uncertain, and Provista's actual results may differ materially due to a number of factors, many of which are beyond Provista's ability to predict or control, including among others, viability and effectiveness of our sales approach and overall marketing strategies, the outcome of development or regulatory review of our products, commercial success or acceptance by the medical community, competitive responses, our ability to raise additional capital, and the ability to successfully file a registration statement with the SEC. These forward-looking statements are subject to known and unknown risks and uncertainties that could cause actual events to differ from the forward-looking statements. Provista operates in a highly competitive and rapidly changing business and regulatory environment, thus new or unforeseen risks may arise. Accordingly, investors should not place any reliance on forward-looking statements as a prediction of actual results. Except as is expressly required by the federal securities laws, Provista undertakes no obligation to update or revise any forward-looking statements, whether as a result of new information, changed circumstances or future events or for any other reason.

Media Contact:

Susan LaMacchia

212-202-3174

Email

SOURCE Provista Diagnostics