DEST.L Regulatory News (DEST)

Destiny Pharma plc

("Destiny Pharma" or "the Company")

Landmark data published on successful NTCD-M3

gut colonisation after fidaxomicin administration

Brighton, United Kingdom - 4 April 2023 - Destiny Pharma (AIM: DEST), a clinical stage innovative biotechnology company focused on the development of novel medicines that can prevent life-threatening infections, today announces that data generated from a C. difficile infection (CDI) model study on the ability of M3 (NTCD-M3), a non-toxigenic C. difficile strain, to successfully colonise the gut following administration of fidaxomicin has been peer-reviewed and published in Microbiology Spectrum

 (https://journals.asm.org/doi/10.1128/spectrum.00517-23).

As previously reported, a Phase 2 clinical trial in patients suffering CDI demonstrated that administration of NTCD-M3 shortly after the use of antibiotics to treat the initial infection, successfully reduced recurrence of CDI from 30% in placebo to 5% in treated patients. Patients had received either vancomycin or metronidazole to treat the initial toxic C. difficile infection before receiving NTCD-M3 treatment[1]. Since the end of this trial, fidaxomicin, a new antibiotic, has been added to US clinical guidelines for treating CDI[2]. It is known that fidaxomicin, and especially its active metabolite3, reside within the gut for longer, potentially inhibiting colonisation by bacteria such as NTCD-M3. This landmark publication from research completed by the Microbiology Research Laboratory at the Edward Hines, Jr. VA Hospital in the US, has addressed this question by monitoring the colonisation of NTCD-M3 in an established and highly translatable CDI model following administration of fidaxomicin.

In summary, the paper concludes that NTCD-M3 is able to effectively and fully colonise the gut following fidaxomicin administration, indicating that NTCD-M3 would be effective in patients receiving this antibiotic, as well as older antibiotics, such as vancomycin and metronidazole.

Dr Bill Love, Chief Scientific Officer of Destiny Pharma, said:

"This publication, authored by leading US CDI expert Dr Stuart Johnson, is a landmark for NTCD-M3, as the use of fidaxomicin is growing and it has recently been recommended by guidelines as the first choice for treatment of CDI in the US. This demonstration of successful and complete colonisation of the gut by NTCD-M3 post‑fidaxomicin, confirms that this groundbreaking live biotherapeutics product can be used alongside all currently recommended antibiotics in the treatment of this serious hospital infection."

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For further information, please contact:

Destiny Pharma plc Neil Clark, CEOShaun Claydon, CFO+44 (0)1273 704 440 pressoffice@destinypharma.com

Optimum Strategic Communications Mary Clark / Nick Bastin / Jonathan Edwards / Eleanor Cooper+44 (0) 7931 5000 66 DestinyPharma@optimumcomms.com

finnCap Ltd (Nominated Advisor and Joint Broker) Geoff Nash / George Dollemore, Corporate FinanceAlice Lane / Nigel Birks / Harriet Ward, ECM+44 (0) 207 220 0500

Shore Capital (Joint Broker)

Daniel Bush / James Thomas / Lucy Bowden

+44 (0) 207 408 4090

MC Services AG Anne Hennecke / Andreas Burckhardt+49-211-529252-12

Stern IR - US

Janhavi Mohite

+1-212-362-1200

janhavi.mohite@sternir.com

About Destiny Pharma

Destiny Pharma is a clinical stage, innovative biotechnology company focused on the development of novel medicines that can prevent life-threatening infections. Its pipeline has novel microbiome-based biotherapeutics and XF drug clinical assets including NTCD-M3, a Phase 3 ready treatment for the prevention of C. difficile infection (CDI) recurrence which is the leading cause of hospital acquired infection in the US and XF-73 nasal gel, which has recently completed a positive Phase 2b clinical trial targeting the prevention of post-surgical staphylococcal hospital infections including MRSA. It is also co-developing SPOR-COV, a novel, biotherapeutic product for the prevention of COVID-19 and other viral respiratory infections and has earlier grant funded XF research projects.

For further information, please visit https://www.destinypharma.com

About NTCD-M3

NTCD-M3 is a novel microbiome therapeutic being developed to reduce the recurrence of C. difficile infections in the gut. CDI is the leading cause of hospital-acquired infection in the US and current treatments lead to significant recurrence. In the US, there are approximately 500,000 cases of CDI each year; many of these initial cases then recur leading to 29,000 deaths per year.

NTCD-M3 has the potential to become the leading treatment for CDI prevention, as its Phase 2 data demonstrated a class leading 5% rate of recurrence compared to 30% with placebo.

The benefits of NTCD-M3 include:

• Single bacterial strain: a naturally occurring, single strain of a non-toxigenic bacteria

• Excellent safety profile: well-defined treatment

• Strong clinical data: NTCD-M3 recurrence rate of 5% versus 30% with placebo, which is "class leading"

• Convenient treatment option: complementary to all current standard of care antibiotic treatments, administered as a single capsule once daily for seven days

• Well-established manufacturing: will be manufactured at high volume and low cost with a long shelf life which should enable high uptake and a strong pharmacoeconomic position

Forward looking statements

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