XPhyto Provides Update on Covid-19 Rapid Test Commercialization

VANCOUVER, BC / ACCESSWIRE / August 10, 2020 / XPhyto Therapeutics Corp. (CSE:XPHY / OTC PINK:XPHYF / FSE:4XT) ("XPhyto" or the "Company"), a next generation bioscience company, is pleased to announce an update on its rapid COVID-19 (SARS-COV-2) screening test, near-term milestones and the pathway to commercialization.

XPhyto and its exclusive diagnostic partner, 3a-Diagnostics GmbH ("3a"), are developing a rapid, disposable, point-of-care lateral flow screening test to detect COVID-19 viral RNA from patient saliva and nasal and throat swabs (the "Test"). On July 6, 2020, the Company announced successful validation of its working prototype for concurrent and independent detection of both the COVID-19 virus and viruses in the broader coronavirus family. 3a's enhanced RNA probe system has demonstrated a detection limit capable of identifying viral RNA at concentrations found in the saliva of symptomatic, pre-symptomatic, and asymptomatic patients as observed and reported by clinicians and scientists in peer reviewed publications.[1][2][3]

Figure 1. A photograph of the Test prototype with a positive signal for both COVID-19 RNA (genome sequence specific to SARS-COV-2) and universal coronavirus RNA (genome sequence shared across the coronavirus family). From left to right: Signal 1: COVID-19 probe, Signal 2: universal coronavirus probe, and Signal 3: control. The above results were visually confirmed in less than 5 minutes.

Test development and optimization is proceeding on an expedited basis at 3a's research lab in Germany and in collaboration with third party contractors and academic partners. Subject to fast track certification by the German government, XPhyto and 3a are targeting Q1 2021 for European regulatory approval and commercial sales pursuant to the following estimated work schedule:

Development and commercialization milestones

Start Date

Finish Date

Complete

Product design and optimization

04/20

11/20

Preliminary prototype production

05/20

05/20

Yes

Proof of concept (3a enhanced probes/synthetic RNA)

06/20

07/20

Yes

Proof of concept (reference RNA)

07/20

08/20

Advanced prototype production (for usability testing)

10/20

11/20

On site usability testing

11/20

11/20

Product design freeze

11/20

11/20

ISO 13485 audit (ISO certification)

12/20

01/21

CE-IVD certification (CE mark commercial approval)

01/21

02/21

Commercial sales

02/21

-


Three potential risk factors have been identified that could negatively impact the estimated schedule of milestones: 1) general internal and/or third party delays; 2) delays related to adjustments for usability optimization; and 3) delays associated with the ISO 13485 audit. XPhyto and 3a are actively working to mitigate delay risks and accelerate the estimated schedule wherever possible. The Company will provide ongoing milestone updates, including regarding clinical evaluation, in due course and as appropriate.