RNS Number : 8874X

Abingdon Health PLC

10 January 2022

Abingdon Health plc

("Abingdon" or "the Company")

Update on AffiDX(R) SARS-CoV-2 antigen lateral flow test

Technical transfer completed mid-December as planned

Sales of AffiDX(R) paused by Avacta following Omicron sensitivity analysis

York, U.K. 10 January 2022: Abingdon Health plc (AIM: ABDX), a leading international developer and manufacturer of high quality and effective rapid tests, provides the following update on Avacta Group plc's ("Avacta") AffiDX(R) SARS-CoV-2 antigen lateral flow test:

Completion of Technical Transfer

Abingdon confirms that it completed the technical transfer of the AffiDX(R) SARS-CoV-2 antigen lateral flow test assay product as planned. Technical transfer is the process of taking a developed product and optimising all processes and elements for mass manufacture. The final technical transfer batches were shipped to Avacta in mid-December 2021 with the products adhering to defined specifications and passing all quality control procedures.

Sensitivity of AffiDX(R) SARS-CoV-2 antigen lateral flow test

Abingdon also notes the announcement from Avacta this morning in relation to their AffiDX(R) SARS-CoV-2 antigen lateral flow test, which highlights that the sensitivity of the test is reduced at lower viral loads when identifying the Omicron variant, compared to the test's sensitivity with previous variants. The Company understands this is a characteristic reported for other lateral flow tests already on the market.

The Company notes that Avacta's Affimer(R) reagent in the AffiDX(R) test detects the Omicron variant with the same sensitivity as the Delta variant, and that it is the performance of the antibody, which pairs with the Affimer(R) in the test, that has been affected by the additional Omicron mutations. The Company also notes that Avacta has independently taken the decision to pause sales of the AffiDX(R) antigen test whilst it replaces the antibody in the product to ensure that its performance with the Omicron variant matches the high performance with previous mutations.

Abingdon scientists will work with Avacta to accelerate the process of replacing the antibody in the current assay format, and complete the process of technology transfer with this new specification.

COVID-19 Antigen Testing Products

The Company has two projects in COVID-19 antigen testing. These two projects involve the scale-up and technical transfer to manufacture for the AffiDX(R) SARS-CoV-2 antigen lateral flow test and for the Vatic KnowNow(TM) rapid antigen test developed by Vatic Health Limited which uses a saliva sample. The process of technical transfer for the Vatic KnowNow(TM) rapid antigen test remains on track with completion anticipated during calendar Q1 2022. According to Vatic the KnowNow test mimics the means through which the virus interacts with the surface of a human cell in order to detect it. As a result, they expect that it will continue to identify the SARS-CoV-2 virus even in the face of further potential mutations in the future.

Abingdon also has a pipeline of other non-COVID-19 contract service opportunities that it will seek to bring through technical transfer and into manufacture in due course.


 Abingdon Health plc                                   www.abingdonhealth.com/investors/ 
 Chris Yates, Chief Executive Officer                                    Via Walbrook PR 
 Melanie Ross , Chief Financial Officer 
 Christopher Hand, Non-Executive Chairman 
 Singer Capital Markets (Sole Broker and                        Tel: +44 (0)20 7496 3000 
  Nominated Adviser) 
 Shaun Dobson, Peter Steel, Alex Bond (Corporate 
 Tom Salvesen (Corporate Broking) 
 Walbrook PR Limited                 Tel: +44 (0)20 7933 8780 or abingdon@walbrookpr.com 
 Paul McManus / Phillip                       Mob: +44 (0)7980 541 893 / +44 (0)7867 984 
  Marriage                                                                           082 
 Alice Woodings                                                 Mob: +44 (0)7407 804 654 

This announcement contains inside information for the purposes of Article 7 of the Market Abuse Regulation (EU) 596/2014 as it forms part of UK domestic law by virtue of the European Union (Withdrawal) Act 2018. Upon the publication of this announcement via the Regulatory Information Service, this inside information is now considered to be in the public domain.

About Abingdon Health

Abingdon Health is a world leading developer and manufacturer of high-quality rapid tests across all industry sectors, including healthcare and COVID-19. Abingdon is the partner of choice for a growing global customer base and takes projects from initial concept through to routine and large-scale manufacturing and has also developed and marketed its own labelled tests.

The Company offers product development, regulatory support, technology transfer and manufacturing services for customers looking to develop new assays or transfer existing laboratory-based assays to a lateral flow format. Abingdon Health aims to support the increase in need for rapid results across many industries and locations and produces lateral flow tests in areas such as infectious disease, clinical testing including companion diagnostics, animal health and environmental testing. Faster access to results allows for rapid decision making, targeted intervention and can support better outcomes. This ability has a significant role to play in improving life across the world. To support this aim Abingdon Health has also developed AppDx(R) , a customisable image capturing technology that transforms a smartphone into a self-sufficient, standalone lateral-flow reader.

Founded in 2008, Abingdon Health is headquartered in York, England.

For more information visit: www.abingdonhealth.com

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