Vermillion Announces Positive Top-Line Results From the OVA500 Multi-Center Study Led by University of California, Irvine
Published: Jul 30, 2012
OVA1 is a blood test for pre-surgical assessment of ovarian tumors for malignancy using a unique multi-biomarker approach. As the first protein-based, in vitro diagnostic multivariate index assay cleared by the U.S. Food and Drug Administration, OVA1 represents a new class of software-based diagnostics.
The OVA500 study confirms and extends the pioneering work of Dr. Fred Ueland published last year. It was a prospective, multi-institutional, blinded study with a new cohort of 494 patients representing the intended use population for OVA1: female patients who were scheduled to undergo surgery for an adnexal mass, enrolled from non gynecologic oncology practices via 27 study coordination centers.
All adnexal tumor types were included in the statistical analysis of test performance. The primary objective was to assess the performance of OVA1 in the intended use population with a focus on two particularly challenging subgroups: women with early-stage ovarian cancer, where approximately half of patients have a normal CA125 level, and pre-menopausal women, where the incidence of ovarian cancer is low and incidence of benign cysts is high.
Top-line data from the study are as follows:
Overall Performance of OVA1
- Negative predictive value was reported at 98%
- Sensitivity was reported at 96%
- Specificity was reported at 51%
Performance in the Pre-menopausal Population
- Sensitivity was reported at 94%
Performance for Early-Stage Ovarian Cancer (I and II)
- Sensitivity was reported at 91%
OVA1 as a Risk Stratification Test (OVA1 score versus cutoff, independent of physician assessment)
- Sensitivity was reported at 92% overall:
- 91% for early-stage disease
- 94% for pre-menopausal patients
- 91% for stage I and II in pre-menopausal women with a specificity of 61%
"The data are a significant validation of the clinical trial from 2009, and these exciting new results, along with previous clinical data, support the continued efforts to expand our ovarian cancer franchise and create a new approach to treating this deadly disease," said Gail S. Page, CEO of Vermillion. "Ovarian cancer is an area of medicine where there continues to be a significant need for novel approaches. A key goal of the study was to investigate the challenging pre-menopausal setting, where benign cysts have a high incidence and early-stage cancer often goes undetected. OVA1 showed outstanding performance in this population, which clearly addresses an unmet need for physicians and patients alike."
"OVA1 sensitivity and negative predictive value in the OVA500 study met or exceeded the levels reported in the pivotal trial, and confirmed the ability of OVA1 to detect a broad range of ovarian cancer subtypes," said Page. "Detection of a broad range of cancer subtypes is essential in triage, since it directly increases overall sensitivity and decreases the likelihood of finding a malignancy in patients with a low-risk assessment."
Further details from the study have been submitted for peer-reviewed publication and presentation. Vermillion plans to utilize important findings like these as a tool to continue driving adoption and reimbursement of OVA1.
This latest work brings the total number of prospectively enrolled patients in OVA1 clinical studies to more than 1,000, with a total of 259 malignancies. Combined, the studies included 84 early-stage ovarian malignancies of which OVA1 correctly identified 78, for a combined risk stratification (stand-alone) sensitivity of approximately 93%. This key statistic confirms the unrivaled sensitivity of OVA1 for early-stage adnexal malignancies in the critical population of pre-menopausal women, which may aid in pre-surgical detection, referral and prevention of second surgeries.
"These new results point to the possibility of a standardized triage protocol using OVA1, with high sensitivity for all ovarian malignancies including the most curable early-stage cases and a broad range of subtypes," noted Dr. Bristow. "We are especially excited that the sensitive detection of ovarian cancer was paired with the classification of most benign masses as low-risk, and greater than 95% confidence that a negative test will result in a benign pathology finding. Thanks to diagnostic advances like OVA1, there is real hope that the majority of women with ovarian cancer will undergo surgery by a qualified gynecologic oncologist, which is one of the most powerful determinants of survival."
Dr. Bristow is an internationally recognized expert in the surgical management of advanced gynecologic cancer including ovarian, fallopian tube, primary peritoneal, and endometrial cancers. He is the author of four books on ovarian cancer and has published extensively in the field of ovarian cancer research. He is also an experienced minimally invasive surgeon with special expertise in robotic hysterectomy and surgical staging for endometrial cancer and cervical cancer, and was recently named as one the Best Doctors in America for gynecologic cancers by Best Doctors, Inc.
For additional information about Vermillion, contact Liolios Group at 949-574-3860 or email firstname.lastname@example.org.
Vermillion, Inc. (NASDAQ: VRML) is dedicated to the discovery, development and commercialization of novel high-value diagnostic tests that help physicians diagnose, treat and improve outcomes for patients. Vermillion, along with its prestigious scientific collaborators, has diagnostic programs in oncology, cardiology and women's health. Additional information about Vermillion can be found at www.vermillion.com.
Certain matters discussed in this press release contain forward-looking statements that involve significant risks and uncertainties, including statements regarding Vermillion's plans, objectives, expectations and intentions. These forward-looking statements are based on Vermillion's current expectations. The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for such forward-looking statements. In order to comply with the terms of the safe harbor, Vermillion notes that a variety of factors could cause actual results and experience to differ materially from the anticipated results or other expectations expressed in such forward-looking statements. Factors that could cause actual results to materially differ include but are not limited to: (1) uncertainty as to Vermillion's ability to protect and promote its proprietary technology; (2) Vermillion's lack of a lengthy track record successfully developing and commercializing diagnostic products; (3) uncertainty as to whether Vermillion will be able to obtain any required regulatory approval of its future diagnostic products; (4) uncertainty of the size of market for its existing diagnostic tests or future diagnostic products, including the risk that its products will not be competitive with products offered by other companies, or that users will not be entitled to receive adequate reimbursement for its products from third party payors such as private insurance companies and government insurance plans; (5) uncertainty that Vermillion has sufficient cash resources to fully commercialize its tests and continue as a going concern; (6) uncertainty whether the trading in Vermillion's stock will become significantly less liquid; and (7) other factors that might be described from time to time in Vermillion's filings with the U.S. Securities and Exchange Commission (SEC). All information in this press release is as of the date of this report, and Vermillion expressly disclaims any obligation or undertaking to release publicly any updates or revisions to any such statements to reflect any change in Vermillion's expectations or any change in events, conditions or circumstances on which any such statement is based, unless required by law.
This release should be read in conjunction with the consolidated financial statements and notes thereto included in our most recent reports on Form 10-K and Form 10-Q. Copies are available through the SEC's Electronic Data Gathering Analysis and Retrieval system (EDGAR) at www.sec.gov.
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