Enrolment of first patient in Phase II trial
testing DNV3837 in Clostridioides difficile infections
DEINOVE (Euronext Growth Paris: ALDEI), a French biotech company that uses a disruptive approach to develop innovative antibiotics and bio-based active ingredients for cosmetics, announced the inclusion of the first patient in the Phase II trial testing DNV3837.
DNV3837 targets the treatment of Clostridioides difficile infections (CDI), a disease classified as a priority by the WHO and one of the global leading causes of healthcare-related infections1.
DNV3837 is an intravenous antibiotic that, when converted to its active form DNV3681, crosses the gastrointestinal barrier and accumulates in the intestinal lumen, allowing it to precisely target the infection site. DNV3837 has demonstrated a promising efficacy profile and acceptable tolerance in Phase I trials (on healthy volunteers). It has also demonstrated its ability to eliminate Clostridioides bacteria without affecting the gut microbiota. It has been granted Fast Track status and QIDP designation2.
The Phase II trial aims to evaluate the efficacy of DNV3837 in pathological conditions (through monitoring of symptoms, stool analysis, etc.), as well as to consolidate the safety and pharmacokinetic data of the antibiotic candidate.
This trial is concentrated in the United States. It will take place in two stages:
The results of this clinical trial should be available by the end of 2020.
"The start of this Phase II clinical trial is a significant step forward for DEINOVE and a great hope for patients. We are very proud to provide a potential solution to this unmet medical need and, to this end, work with the best American specialists in this area. The investigation centers are very committed to conducting this trial which, in the event of positive results, will be an important milestone towards the registration of DNV3837," said Dr Georges Gaudriault, Scientific Director of DEINOVE.
This announcement echoes warnings issued by the WHO about the lack of antibiotics renewal.
Dr Tedros Adhanom Ghebreyesus, Director-General of WHO, declared last January 17 « Never has the threat of antimicrobial resistance been more immediate and the need for solutions more urgent ».
https://www.who.int/news-room/detail/17-01-2020-lack-of-new-antibiotics-threatens-global-efforts-to-contain-drug-resistant-infections
ABOUT CLOSTRIDIOIDES DIFFICILE INFECTIONS
40% of patients suffering a Clostridioides difficile infection (CDI) have severe forms, with mortality rates as high as 50%. Over the past 20 years, CDIs tended to increase significantly in incidence and severity, particularly due to the development of new hypervirulent strains and the high risk of recurrence. The US Center for Disease Control and Prevention (CDC) recently identified CDIs as one of the leading causes of healthcare-associated infections before Staphylococcus aureus (MRSA5) infections. In 2017, in the United States, there were an estimated 223,900 cases in hospitalized patients and 12,800 deaths6. This disease does not affect the United States only, recent studies7 show that the incidence of this type of infection is vastly underestimated in other parts of the world such as Europe and Asia.
To date, there are no therapeutic solutions for patients with severe gastrointestinal infections. Since the oral route is compromised, the available treatments, which are mostly oral treatments, struggle to reach the intestine because of the patient's pathological condition (reduced gastrointestinal motility, intubation, intestinal perforation, etc.), and the few antibiotics that could be administered intravenously (IV), do not cross the gastrointestinal barrier and therefore do not reach the site of infection.
ABOUT THE DNV3837 ANTIBIOTIC CANDIDATE
DNV3837 – a prodrug8 of the DNV3681 molecule (also known as MCB3681) – is a narrow-spectrum, hybrid oxazolidinone-quinolone synthetic antibiotic targeting only Gram-positive bacteria. It is developed as a highly active 1st line treatment targeting Clostridioides difficile.
It has demonstrated significant efficacy and superiority to reference treatments (fidaxomicin in particular) against isolates of C. difficile, regardless of their virulence (including the hyper virulent BI/NAP1/027 strain).
DNV3837 is an intravenous antibiotic that, when converted to its active form DNV3681, crosses the gastrointestinal barrier and accumulates in the intestinal lumen, allowing it to precisely target the infection site. Several Phase I trials (on approx. a hundred healthy volunteers) have shown a high concentration of the antibiotic in stools, a strong marker of its presence in the intestine. It has also demonstrated its ability to eliminate Clostridioides bacteria without affecting the gut microbiota. It has also shown an acceptable tolerance profile.
FDA granted the DNV3837 drug with Qualified Infectious Disease Product (QIDP) designation and Fast Track status.
ABOUT DEINOVE
DEINOVE is a French biotechnology company, a leader in disruptive innovation, which aims to help meet the challenges of antibiotic resistance and the transition to a sustainable production model for the cosmetics and nutrition industries.
DEINOVE has developed a unique and comprehensive expertise in the field of rare bacteria that it can decipher, culture, and optimize to disclose unsuspected possibilities and induce them to produce biobased molecules with activities of interest on an industrial scale. To do so, DEINOVE has been building and documenting since its creation an unparalleled biodiversity bank that it exploits thanks to a unique technological platform in Europe.
DEINOVE is organized around two areas of expertise:
Within the Euromedecine science park located in Montpellier, DEINOVE employs 60 employees, mainly researchers, engineers, and technicians, and has filed more than 350 patent applications internationally. The Company has been listed on EURONEXT GROWTH® since April 2010.
CONTACTS
Investors
Coralie Martin
Communication, Marketing and Investor Relations
Ph.: +33 (0)4 48 19 01 60
coralie.martin@deinove.com
Media
ALIZE RP
Caroline Carmagnol
Ph.: +33 (0)6 64 18 99 59
deinove@alizerp.com
1 Source: CDC (US Centers for Disease Control and Prevention)
2 ‘Fast Track’ status facilitates the development of the molecule through a faster and more flexible regulatory review of the application. The QIDP designation gives the drug exclusive access to the market for an additional five-year period. These designations are granted by the FDA to drugs under development that meet critical and unmet therapeutic needs.
3 DSMB - Data Safety Monitoring Board: a group of independent experts tasked to review the data generated during the trial and make recommendations on patient safety as well as trial relevance and validity.
4 Standard treatments approved in the United States for the treatment of CDIs include vancomycin, fidaxomicin and metronidazole (all three antibiotics). The choice will be at the discretion of the clinicians.
5 MRSA : meticillin-resistant Staphylococcus aureus
6 https://www.cdc.gov/drugresistance/biggest-threats.html#cdiff 7
7 Balsells E, Shi T, Leese C, Lyell I, Burrows J, Wiuff C, Campbell H, Kyaw MH, and Nair H (2019) Global burden of Clostridium difficile infections: a systematic review and meta-analysis. J Glob Health 9:010407
8 Prodrug: substance whose transformation in the body results in an active product
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