VolitionRx Demonstrates 75% Accuracy in Detecting Highest-Risk Pre-Cancerous Colorectal Adenomas with NuQ® Blood Test
Company Announces its Best Detection Rates to Date for Colorectal Adenomas
NAMUR, Belgium, Feb. 17, 2016 /PRNewswire/ -- VolitionRx Limited (NYSE MKT: VNRX) today announced results demonstrating that the Company's NuQ® blood test accurately detected 75% of colorectal adenomas, or pre-cancerous polyps, that were most likely to become cancerous. A panel of five of NuQ® biomarker assays also detected 86% of early (stage I) colorectal cancers. The completed clinical trial of 430 patients was conducted with the Hvidovre Hospital and with the University of Copenhagen in Denmark.
The study was specifically designed to assess the effectiveness of VolitionRx's NuQ® blood-based biomarker assays in detecting adenomas before they become cancerous, as well as early stage colorectal cancer. If adenomas are caught early enough and removed, the risk of subsequent cancer is significantly reduced.
The 430 patients, who either presented with symptoms suggesting the presence of colorectal cancer or were high-risk subjects, included 42 subjects with stage I cancer, 46 subjects with stage II cancer and 181 subjects with colorectal adenomas. No later stage cancers were included in the study. The trial was double blinded and age-adjusted; the results were at 78% specificity.
VolitionRx's proprietary NuQ® blood tests are based on biomarker assays that can identify fragments of chromosomes, called nucleosomes, circulating in the blood and analyze them for epigenetic modifications that signal that cancer is present. The final NuQ® test will likely consist of a panel of 4-6 individual biomarker assays that require only a single drop of blood from patients. During this trial, VolitionRx tested a number of new biomarker assays in order to refine the make-up of the panel and produce the highest accuracy detection rates.
Colorectal cancer is one of the most preventable cancers, yet there are still 50,000 deaths and more than 130,000 new cases diagnosed every year in the U.S. alone.1 Colonoscopy examinations provide a high percentage of detection, yet due to their invasive and costly nature, more than one third of adults of screening age in the U.S. are not screened with such a procedure.2 The five-year survival rate for colorectal cancer is 90% when detected at stage I but only 13% if detected at stage IV.
Professor Hans Jorgen Nielsen, Professor of Surgical Oncology at Hvidovre Hospital in Denmark, said, "This study shows extremely good detection of dangerous pre-cancer and early-stage cancer with the non-invasive NuQ® blood test. We are now working with VolitionRx on large retrospective and prospective trials in both screening and symptomatic populations. We expect to release more data from both these studies later this year."
VolitionRx's Chief Scientific Officer, Dr Jake Micallef, said, "Current blood tests and commonly used fecal tests are poor at detecting early stage colorectal cancer or pre-cancer, so we are very excited by these results. NuQ® tests are detecting early stage colorectal cancer and even pre-cancerous polyps that can be removed before cancer can develop. Finding tumors before they spread is a crucial breakthrough that has the potential to significantly improve the outcomes for colorectal cancer patients. In recent months, VolitionRx has identified and manufactured a number of new biomarker assays and now has a greater pool of NuQ® biomarker assay candidates from which to select the panel for the final blood test. These results demonstrate the increased accuracy from this optimization. We are now running these new biomarker assays in all our colorectal cancer trials."
Cameron Reynolds, Chief Executive Officer of VolitionRx, commented, "Not only do these results demonstrate our best detection rates to date for colorectal adenomas, but they further confirm the progress that VolitionRx is making in identifying new NuQ® biomarker assays and optimizing panels to produce the most accurate detection rates of adenomas and colorectal cancers. We are making excellent progress towards an expected launch of a commercial product later this year for clinical use in detecting colorectal cancer. These latest findings, using an increased selection of NuQ® biomarker assays, augur well for VolitionRx's development of blood tests for the detection of other diseases, including lung and pancreatic cancers."
Results from on-going clinical trials assessing the effectiveness of VolitionRx's assays, include:
Colorectal cancer and pre-cancerous colorectal polyps
- Interim results from a 4,800 patient retrospective symptomatic population study (Hvidovre Hospital, University of Copenhagen, Denmark), released September 9 2015: Panel of four NuQ® biomarker assays detected 81% of colorectal cancers and 67% of high-risk adenomas at 78% specificity
- Results from a prospective study of 121 patient referred for colonoscopy (CHU Dinant Godinne - UCL Namur, in Belgium), released December 8 2015: Panel of four NuQ® biomarker assays detected 91% of colorectal cancer cases at 90% specificity
- Results from a 59-patient retrospective study (Lund University, Sweden) published in Clinical Epigenetics online journal (http://www.clinicalepigeneticsjournal.com/content/pdf/s13148-015-0139-4.pdf), October 7 2015: Panel of four NuQ® biomarker assays plus CA 19-9 classical biomarker detected 92% of pancreatic cancers at 100% specificity
- Interim results from a 4,800 patient retrospective symptomatic population study (Hvidovre Hospital, University of Copenhagen, Denmark), released October 22 2015: Panel of two NuQ® assays and the classical cancer marker CEA (carcino-embryonic antigen) distinguished 95% of pancreatic cancer cases from healthy subjects at 84% specificity
- Interim results (73 of 240 patients collected and assessed) from a prospective study (Liege University Hospital, Belgium), released November 19 2015: Panel of four NuQ® biomarker assays detected 93% of lung cancers at 91% specificity
1. National Cancer Institute. "SEER Stat Fact Sheets: Colon and Rectum Cancer." April 2015. Available online at: http://seer.cancer.gov/statfacts/html/colorect.html. Accessed February 16, 2016.
2. American Cancer Society. "Colorectal Cancer Facts & Figures 2014-2016." March 2014. Available online at: http://www.cancer.org/acs/groups/content/documents/document/acspc-042280.pdf. Accessed February 16, 2016.
VolitionRx is a life sciences company focused on developing blood-based diagnostic tests for different types of cancer. The NuQ® tests are based on the science of Nucleosomics® which is the practice of identifying and measuring nucleosomes in the bloodstream – an indication that cancer is present.
VolitionRx's goal is to make the tests as common and simple to use, for both patients and doctors, as existing diabetic and cholesterol blood tests. VolitionRx's research and development activities are currently centered in Belgium as the company focuses on bringing its diagnostic products to market first in Europe, then in the U.S. and ultimately, worldwide.
An animation introducing VolitionRx's Nucleosomics® technology can be found at: https://www.youtube.com/watch?v=38dodCpyXf0.
Anita Heward, VolitionRx
Telephone: +44 (0) 7756 034243
Kirsten Thomas, The Ruth Group
Telephone: +1 (508) 280-6592
Scott Powell, VolitionRx
Telephone: +1 (646) 650-1351
Lee Roth, The Ruth Group
Telephone: +1 (646) 536-7012
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Nucleosomics®, NuQ® and HyperGenomics® and their respective logos are trademarks and/or service marks of VolitionRx Limited and its subsidiaries. All other trademarks, service marks and trade names referred to in this press release are the property of their respective owners.
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SOURCE VolitionRx Ltd