TIDMAGL
Angle PLC
13 September 2022
For immediate release 13 September 2022
ANGLE plc ("the Company")
ANGLE PRESENTS NEW POSTER AT AMERICAN SOCIETY FOR CLINICAL
PATHOLOGY MEETING
Poster describes novel use of Pap stain procedure to analyse
morphology of CTCs harvested using the Parsortix system
Approach could be easily implemented in standard pathology
laboratory workflows
ANGLE plc (AIM:AGL OTCQX:ANPCY), a world-leading liquid biopsy
company, is delighted to announce that its United States clinical
laboratory team presented a new poster at the 100(th) American
Society for Clinical Pathology (ASCP) meeting in Chicago, Illinois,
USA between 7-9 September 2022. The poster, which describes the
novel use of Papanicolaou (Pap) staining procedures with cells
harvested from blood samples using the Parsortix(R) system, was
selected as a finalist for a prestigious Blue Ribbon award for
laboratory practice by ASCP judges.
Pap staining is a polychromatic cytopathological staining
technique used to differentiate cells in a sample and is most
commonly used as a screening method for cervical cancer. In the
experiments described in the poster, the ANGLE team used the
technique to look at the morphology of metastatic malignant cells
harvested by the Parsortix system, as a way of identifying CTCs.
The team concluded that patient sample CTC analysis can be
performed by combining the use of the Parsortix system with
standard cytology staining and optimised analysis by qualified
cytologists.
Pap staining is a reliable and inexpensive technique used in
pathology laboratories world-wide and ANGLE believes that when used
with a Parsortix harvest, it could enable cytologists to quickly,
and reliably, identify cells of interest. For example, circulating
tumour cells (CTCs) identified in blood samples from cancer
patients in remission could alert clinicians to the need for
further investigation and testing.
The poster is available online at
https://angleplc.com/library/publications/ .
ANGLE Founder and Chief Executive, Andrew Newland,
commented:
"As we look to build adoption of the Parsortix system in
clinical laboratories for its intended use, the ability to place
the system in standardised, low-cost laboratory workflows is a
significant advantage. I am delighted that the clinical laboratory
team has achieved this recognition and look forward to seeing a
positive impact on the commercial roll-out of the Parsortix
system".
For further information:
ANGLE plc +44 (0) 1483 343434
Andrew Newland, Chief Executive
Ian Griffiths, Finance Director
Andrew Holder, Head of Investor Relations
Berenberg (NOMAD and Joint Broker)
Toby Flaux, Ciaran Walsh, Milo Bonser +44 (0) 20 3207 7800
Jefferies (Joint Broker)
Max Jones, Thomas Bective +44 (0) 20 7029 8000
FTI Consulting
Simon Conway, Ciara Martin +44 (0) 203 727 1000
Matthew Ventimiglia (US) +1 (212) 850 5624
For Frequently Used Terms, please see the Company's website on
https://angleplc.com/investor-relations/glossary/
Notes for editors
About ANGLE plc www.angleplc.com
ANGLE is a world leading liquid biopsy company with
sample-to-answer solutions. ANGLE's proven patent protected
platforms include a circulating tumor cell (CTC) harvesting
technology known as the Parsortix(R) system and a downstream
analysis system for cost effective, highly multiplexed analysis of
nucleic acids and proteins.
ANGLE's Parsortix(R) system is FDA cleared for its intended use
in metastatic breast cancer and is currently the first and only FDA
cleared medical device to harvest intact circulating cancer cells
from blood.
Intended use
The Parsortix(R) PC1 system is an in vitro diagnostic device
intended to enrich circulating tumor cells (CTCs) from peripheral
blood collected in K(2) EDTA tubes from patients diagnosed with
metastatic breast cancer. The system employs a microfluidic chamber
(a Parsortix cell separation cassette) to capture cells of a
certain size and deformability from the population of cells present
in blood. The cells retained in the cassette are harvested by the
Parsortix PC1 system for use in subsequent downstream assays. The
end user is responsible for the validation of any downstream assay.
The standalone device, as indicated, does not identify, enumerate
or characterize CTCs and cannot be used to make any
diagnostic/prognostic claims for CTCs, including monitoring
indications or as an aid in any disease management and/or treatment
decisions.
The Parsortix system enables a liquid biopsy (a simple blood
test) to be used to provide the circulating metastatic breast
cancer cells to the user in a format suitable for multiple types of
downstream analyses. The system is based on a microfluidic device
that captures cells based on a combination of their size and
compressibility. The system is epitope independent and can capture
all phenotypes of CTCs (epithelial, mesenchymal and EMTing CTCs) as
well as CTC clusters in a viable form (alive). CTCs harvested from
the system enable a complete picture of a cancer to be seen; as
being an intact cell they allow DNA, RNA and protein analysis as
well as cytological and morphological examination and may provide
comparable analysis to a tissue biopsy in metastatic breast cancer.
Because CTC analysis is a non-invasive process, unlike tissue
biopsy, it can be repeated as often as needed. This is important
because cancer develops and changes over time and there is a clear
medical need for up-to-date information on the status of a
patient's tumor. In addition, the live CTCs harvested by the
Parsortix system can be cultured, which offers the potential for
testing tumor response to drugs outside the patient.
The Parsortix technology is the subject of 26 granted patents in
Europe, the United States, China, Australia, Canada, India, Japan
and Mexico with three extensive families of patents are being
progressed worldwide.
In the United States, the Parsortix(R) PC1 system has received a
Class II Classification from FDA for use with metastatic breast
cancer patients. FDA clearance is seen as the global gold standard.
ANGLE's Parsortix system is the first ever FDA cleared system for
harvesting CTCs for subsequent analysis. ANGLE has applied the IVD
CE Mark to the same system for the same intended use in Europe.
ANGLE has also completed two separate 200 subject clinical
studies under a program designed to develop an ovarian cancer
pelvic mass triage test, with the results showing best in class
accuracy (AUC-ROC) of 95.1%. The pelvic mass triage assay has
undergone further refinement and optimisation and a 200 patient
clinical verification study has now completed enrolment.
ANGLE's technology for the multiplex evaluation of proteins and
nucleic acids of all types is called the HyCEAD(TM) platform and is
based on a patented flow through array technology. It provides for
low cost, highly multiplexed, rapid and sensitive capture of
targets from a wide variety of sample types. A proprietary
chemistry approach (the HyCEAD method) allows for the capture and
amplification of over 100 biomarkers simultaneously in a single
reaction. The HyCEAD system is extremely sensitive and is ideal for
measuring gene expression and other markers directly from Parsortix
harvests and was used in the ovarian cancer pelvic mass triage test
to achieve best in class accuracy (AUC-ROC) of 95.1%.
ANGLE's proprietary technologies can be combined to provide
automated, sample-to-answer results in both centralised laboratory
and point-of-use cartridge formats.
ANGLE has established formal collaborations with world-class
cancer centres and major corporates such as Abbott, Philips and
QIAGEN, and works closely with leading CTC translational research
customers. These Key Opinion Leaders (KOLs) are working to identify
applications with medical utility (clear benefit to patients), and
to secure clinical data that demonstrates that utility in patient
studies. The body of evidence as to the benefits of the Parsortix
system is growing rapidly from our own clinical studies in
metastatic breast cancer and ovarian cancer and also from KOLs with
68 peer-reviewed publications and numerous publicly available
posters from 31 independent cancer centres, available on our
website.
ANGLE has established clinical services laboratories in the UK
and the United States to accelerate commercialisation of the
Parsortix system and act as demonstrators to support product
development. The laboratories offer services globally to
pharmaceutical and biotech customers for use of Parsortix in cancer
drug trials and, once the laboratories are accredited and tests
validated, will provide Laboratory Developed Tests (LDTs) for
patient management.
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