Aridis Pharmaceuticals Inc (ARDS)

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$ARDS Aridis Pharmaceuticals Announces First Quarter 2021 Results
PUBLISHED

LOS GATOS, Calif., May 11, 2021 /PRNewswire/ -- Aridis Pharmaceuticals, Inc. (Nasdaq: ARDS), a biopharmaceutical company focused on the discovery and development of novel anti-infective therapies to treat life-threatening infections, today reported financial and corporate results for the first quarter ended March 31, 2021.

First Quarter Highlights

*Announced the addition of a second inhaled monoclonal antibody ("mAb") to neutralize newly emerging COVID-19 mutated variant to form a cocktail of two mAbs. The expansion of COVID virus strain coverage, combined with the product's self-administered, at-home treatment modality, further differentiates the company's AR-712 COVID treatment offering. A clinical Phase 1/2 study is expected to be launched in 2H 2021.

*Announced the preclinical development services support of the company's COVID mAb program from NIAID and the Coronavirus Immunotherapy Consortium (CoVIC).

*Licensed the CRISPR gene editing technology from the Broad Institute of MIT and Harvard. CRISPR is a component of the ?PEXTM mAb discovery and production platform technology.

*Entered into a ?PEX out-licensing and product discovery agreement with Kermode Biotechnologies, Inc. on vaccines and mAbs for zoonotic viruses, which are animal viruses that have the ability to infect humans and potentially lead to a viral pandemic.

*Continued enrolling global Phase 3 clinical trial of AR-301 in patients with ventilator associated pneumonia (VAP) including patients who presented with S. aureus VAP as a secondary infection to COVID-19. Interim futility analysis is expected in 2H 2021 and top-line data expected in 1H 2022.

*Executed a registered direct offering with gross proceeds of approximately $8.5 million in the fourth quarter of 2020 and approximately $7.0 million in March 2021.

"As the pandemic has raged on this past year, with the virus evolving into more transmissible and lethal variants, we have been able to adapt our mAb offering to expand strain coverage to all key SARS-COV-2 variants," commented Vu Truong, Ph.D., Chief Executive Officer of Aridis Pharmaceuticals. "We also continued to optimize our versatile ?PEX mAb discovery platform technology and entered into a partnership to develop mAbs and vaccines for viruses with pandemic potential", continued Truong. "We expect to maintain a high pace of execution and to position the company for an outstanding 2021."

COVID-19 Program Update

AR-712: During the quarter, Aridis announced the development of a highly potent fully human mAb against SARS-CoV-2 virus. AR-712 is a cocktail of two mAbs, AR-711 and AR-713, designed to lower the barrier to treatment coverage of non-hospitalized COVID-19 patients by using a convenient, self-administered inhaled dosage presentation. The two mAbs that comprise AR-712 were discovered from convalescent COVID-19 patients and target the receptor-binding domain (RBD) region of the spike protein of the original SARS-CoV2 virus and its newly emerging variants including the currently prevalent strain 'E484K' associated with the South Africa, Brazil, and Japan variants. Our antibody also neutralizes the California strain, which harbors the L452R mutation.

In an animal challenge study with golden Syrian hamsters, inhaled AR-711 successfully eliminated all detectable SARS-CoV-2 virus at substantially lower doses than parenterally administered (injected) COVID-19 mAb. The AR-712 mAbs are engineered to be long-acting in blood for up to six to twelve months and are stabilized using a proprietary formulation designed to protect the mAbs from the physical stresses imparted by commercial nebulizer delivery devices on protein drugs. The potency of AR-712 and its direct delivery to the lungs by inhaled administration may facilitate significant dose sparing not achievable by parenteral administration. A proprietary formulation enables AR-712 to be deliverable using a variety of commercially available nebulizers that can be self-administered on an outpatient basis, thus lowering the barrier to COVID-19 therapeutic treatment. Clinical trials for AR-712 are expected to commence 2H 2021.

AR-701: During the quarter, Aridis continued to characterize this cocktail of fully human mAbs discovered from its in-house ?PEX mAb discovery platform that is directed at multiple envelope proteins of the SARS-CoV-2 virus. AR-701 is intended to treat hospitalized, moderate to severe patients, which complements AR-712's focus on milder, non-hospitalized patients.

Clinical Program Update

AR-301: AR-301 is being evaluated in a Phase 3 clinical study as an adjunctive treatment to standard of care antibiotics in S. aureus infected ventilator associated pneumonia (VAP) patients. Thus far, the pace of the trial has continued to be impacted by the protracted COVID-19 pandemic. The Phase 3 interim futility analysis from the ongoing pivotal trial is now expected to be reported in 2H 2021 and top line data by 1H 2022. It's important to note that COVID-19 patients on prolonged mechanical ventilation in the intensive care unit (ICU) are prone to secondary infections (also called 'superinfections') by opportunistic pathogens such as bacteria. Superinfection is a reported complication in COVID-19 patients, which exacerbates morbidity and the rate of mortality. The AR-301 Phase 3 study allows for the enrollment of patients with baseline characteristics which are inclusive of certain COVID-19 patients. While AR-301 is not an agent to treat SARS-CoV-2 virus itself, it can potentially reduce the morbidity associated with secondary S. aureus pneumonia, which is a coronavirus complication and a contributing cause of death in such patients.

The trial is expected to enroll 240 patients at approximately 160 clinical centers in 22 countries. Participating clinical centers that are activated continue to follow standard stringent clinical protocols and procedures for critically ill VAP patients, as is standard in the U.S. and Europe. The trial represents the first ever Phase 3 superiority clinical study evaluating immunotherapy with a fully human monoclonal antibody to treat acute pneumonia in the intensive care unit setting. Details of the study can be viewed on www.clinicaltrials.gov using identifier NCT03816956.

AR-501: During the quarter, the Company initiated the Phase 2a study to evaluate the safety, pharmacokinetic, and preliminary efficacy evaluation in cystic fibrosis (CF) patients. The Phase 2a is set to enroll 42 cystic fibrosis adult patients and is expected to complete enrollment by the end of 2021.

AR-501 is being developed in collaboration with the CF Foundation and has been granted Orphan Drug Designation (ODD), Fast Track and Qualified Infectious Disease Product (QIDP) designations by the FDA. In addition, the European Medicines Agency (EMA) granted ODD to AR-501. The original Phase 1/2a clinical trial was a randomized, double-blinded, placebo-controlled SAD and MAD trial investigating the safety and PK of inhaled AR-501 in healthy volunteers and cystic fibrosis patients with chronic bacterial lung infections. Details of the original Phase 1/2a clinical trial can be viewed on www.clinicaltrials.gov using identifier NCT03669614.

Corporate Update

A key development was the closing of a $7.0 million financing which occurred in March 2021. The proceeds from this registered direct offering strengthened the Company's balance sheet during the first quarter to support the continued advancement of AR-301's Phase 3 VAP clinical trial, while allocating the requisite resources to AR-501's Phase 2b cystic fibrosis clinical trial and the ongoing development of novel COVID-19 therapies such as AR-712 and AR-401.

Fiscal 2021 First Quarter Results:

Cash: Total cash and cash equivalents as of March 31, 2021 were $10.5 million. The Company completed a registered direct financing in March 2021 and received gross proceeds of approximately $7.0 million.
Revenues: Revenue was zero for the quarters ended March 31, 2021 and 2020.

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SOURCE Aridis Pharmaceuticals, Inc.