Blinded validation cohort achieves over 95% sensitivity for stage I & II cancers with 95% specificity
Capture-Seq™ Targets $36 Billion TAM in Early Cancer Detection and MRD.

HENDERSON, Nev., March 25, 2026 /PRNewswire/ -- VolitionRx Limited (NYSE:VNRX) ("Volition"), a multi-national epigenetics company, announces compelling proof of concept data from a blinded validation cohort for the detection of cancer, including early stage cancer using its breakthrough Capture-Seq™ technology.

Dr. Jake Micallef, Chief Scientific Officer, Volition, commented:

"As we reported previously, Volition has developed a new liquid biopsy method, Capture-Seq™, which enriches and purifies plasma samples resulting in virtually pure circulating tumor DNA (ctDNA) samples for analysis.

"We are now releasing the data from a blinded validation cohort of 81 subjects (colorectal and lung cancer patients = 59, healthy controls = 22) and are extremely encouraged by the results, particularly in early-stage cancer detection.

Details are summarized in the table below¹:

Cancer Stage	Detection Rate
I	94% (17/18)
II	96% (26/27)
III	100% (2/2)
IV	91% (10/11)
Unknown	0% (0/1)
All Stages	Sensitivity= 93% (55/59)
Controls	Specificity= 95% (21/22)

"Volition is, I believe, the first liquid biopsy company to focus on circulating cell free nucleoproteins and we have filed a number of new patents to protect this technology."

Dr. Andrew Retter, Medical Consultant, Volition, commented:

"From a clinical perspective, the proof of concept and early blinded validation results are extremely encouraging, and the early-stage cancer detection of 95% of stage I and II cancers is particularly noteworthy.

"For patients, the potential significance is huge. If validated in larger cohorts, CTCF Capture-Seq™ could contribute to Multi-Cancer Early Detection (MCED) fulfilling a significant unmet clinical need.

"We also believe Capture-Seq™ has the potential to play a role in cancer management, including but not limited to, Minimal Residual Disease detection and treatment monitoring, either alone or potentially in combination with other technologies too."

Mr. Gael Forterre, Chief Commercial Officer, Volition, added:

"This scientific breakthrough has generated a lot of interest with potential licensing partners, and we are excited to share this early-stage detection data.

"We feel that this technology could, with further development, become very widely used, in both the human and veterinary markets, and fits very well with our Nu.Q® product portfolio.

"We believe this represents a significant commercial opportunity with a Total Addressable Market on an annualized basis of approximately $23 billion² for the human MCED use, and over $13 Billion²for MRD.

"We are in active discussions with several large liquid biopsy and diagnostic companies to accelerate the development and launch of this technology as soon as possible."

About Capture-Seq™

The biggest problem facing liquid biopsy worldwide is that the vast majority of circulating DNA in blood plasma samples comes from healthy cells, not cancer cells. In a world first new technology, Volition has overcome this hurdle and produced >99% pure cancer derived plasma DNA sequence sets for liquid biopsy.

In a recently submitted manuscript we report a new, two-step method for preparing pure circulating tumor DNA data sets for cancer patients:

physical enrichment of the sample and
bioinformatic removal of virtually all remaining non-tumor cfDNA sequences from the DNA sequence data set.

This new method produced >99% pure ctDNA sequencing data sets for blood samples from cancer patients and, whilst we capture a subset of the ctDNA (i.e. not all the ctDNA in a sample), it is virtually pure cancer DNA.

These methodological and technological breakthroughs represent a novel liquid biopsy method for a novel class of potentially thousands of liquid biopsy sequence biomarkers.

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Data on File
Data on File: Volition TAM Model

About Volition

Volition is a multi-national company focused on advancing the science of epigenetics. Volition is dedicated to saving lives and improving outcomes for people and animals with life-altering diseases through earlier detection, as well as disease and treatment monitoring.

Through its subsidiaries, Volition is developing and commercializing simple, easy to use, cost-effective blood tests to help detect and monitor a range of diseases, including some cancers and diseases associated with NETosis, such as sepsis. Early detection and monitoring have the potential not only to prolong the life of patients, but also to improve their quality of life.

Volition's research and development activities are centered in Belgium, with an innovation laboratory and office in the U.S. and an office in London.

The contents found at Volition's website address are not incorporated by reference into this document and should not be considered part of this document. Such website address is included in this document as an inactive textual reference only.

Media Enquiries: Louise Batchelor, Volition, mediarelations@volition.com,+44 (0)7557 774620

Safe Harbor Statement

Statements in this press release or associated video or link may be "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, that concern matters that involve risks and uncertainties that could cause actual results to differ materially from those anticipated or projected in the forward-looking statements. Words such as "expects," "anticipates," "intends," "plans," "aims," "targets," "believes," "seeks," "estimates," "optimizing," "potential," "goal," "suggests," "could," "would," "should," "may," "will" and similar expressions identify forward-looking statements. These forward-looking statements relate to, among other topics, Volition's expectations related to revenue opportunities and growth, the effectiveness and availability of Volition's blood-based diagnostic, prognostic and disease monitoring tests, Volition's ability to develop and successfully commercialize such test platforms for early detection of cancer and other diseases as well as serving as a diagnostic, prognostic or disease monitoring tools for such diseases, Volition's expectations regarding future publications, Volition's success in securing licensing and/or distribution agreements with third parties for its products, and Volition's expectations regarding the terms of such agreements. Volition's actual results may differ materially from those indicated in these forward-looking statements due to numerous risks and uncertainties, including, without limitation, results of studies testing the efficacy of its tests. For instance, if Volition fails to develop and commercialize diagnostic, prognostic or disease monitoring products, it may be unable to execute its plan of operations. Other risks and uncertainties include Volition's failure to obtain necessary regulatory clearances or approvals to distribute and market future products; a failure by the marketplace to accept the products in Volition's development pipeline or any other diagnostic, prognostic or disease monitoring products Volition might develop; Volition's failure to secure adequate intellectual property protection; Volition will face fierce competition and Volition's intended products may become obsolete due to the highly competitive nature of the diagnostics and disease monitoring market and its rapid technological change; downturns in domestic and foreign economies; and other risks, including those identified in Volition's most recent Annual Report on Form 10-K and Quarterly Reports on Form 10-Q, as well as other documents that Volition files with the Securities and Exchange Commission. These statements are based on current expectations, estimates and projections about Volition's business based, in part, on assumptions made by management. These statements are not guarantees of future performance and involve risks, uncertainties and assumptions that are difficult to predict. Forward-looking statements are made as of the date of this release, and, except as required by law, Volition does not undertake an obligation to update its forward-looking statements to reflect future events or circumstances.

Nucleosomics™, Capture-PCR™, Capture-Seq™ and Nu.Q^® 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 or associated video or link are the property of their respective owners. Additionally, unless otherwise specified, all references to "$" refer to the legal currency of the United States of America.

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SOURCE VolitionRx Limited

Volition Announces Detection of Over 95% of Early-Stage Cancers