LOS GATOS, Calif., Dec. 20, 2024 (GLOBE NEWSWIRE) -- Aridis Pharmaceuticals, Inc. (OTC:ARDS) ("Aridis" or the "Company"), a biopharmaceutical company, today announced a corporate update on recent developments.

Company update:

The Company continues to diligently explore multiple paths to monetize its assets amidst a protracted challenging capital market and limited internal resources. During the second half of this year it has been in discussions with other pharmaceutical companies and investment firms on possible partnerships and investments in the clinical product candidates AR-301, AR-320, AR-501, and the APEX platform technology.

The Company has substantially reduced its operational cash burn by delaying the expenses associated with SEC filings in favor of business development discussions with potential partners and investors. As a result of voluntary non-compliance, the Company was transitioned to and expects to continue to be listed on the OTC Expert Market until a positive outcome(s) from the business development effort on one or more of its programs.

Importantly, two promising developments have been achieved involving the lead assets AR-301 and AR-501 that, if realized, are expected to generate near term revenues and shareholder value:

Phase 2 product candidate AR-501

The Company recently executed an Asset Acquisition Terms Agreement with an undisclosed pharmaceutical company (Partner) to assign exclusive ownership of AR-501 upon receiving the Partner's payments totaling $6,500,000. Two payments of $3,250,000 each are expected to be received in the first and second quarter of 2025, respectively. The Partner is further obligated to make annual royalty payments to Aridis of 12% to 15% of the net sales revenue for up to 10 years following the first commercial sale.

Development status: AR-501 is being developed as a therapeutic treatment for chronic bacterial lung infections in cystic fibrosis (CF) patients. A Phase 1 trial in healthy adults and a Phase 2a trial in cystic fibrosis patients have been completed. The primary endpoint of safety was achieved in both studies, showing that AR-501 was well tolerated when administered as an inhaled dosage form over several weekly treatments. The pharmacokinetic data showed effective delivery of AR-501 into the lungs of CF patients and a fast clearance rate. The positive clinical trial data also facilitated the filing for non-dilutive grant funding support from governmental sources and non-governmental organizations (NGOs), which we intend to explore.

Lead product candidate AR-301

The discussions with potential partners and investors to continue the development of AR-301 resulted in an investment proposal from a globally recognized private investment firm in an amount that the Company believes is sufficient to complete the second and final Phase 3 study and product approval. The Company is working closely with the investment firm to satisfy specific requirements for the closing of investment. Details of the investment proposal and the progress toward investment closing are expected to be disclosed in 1Q25.

Development status: AR-301 is being evaluated for the adjunctive therapeutic treatment of Ventilator Associated Pneumonia (VAP). The first of two planned Phase 3 clinical trials saw significant reduction in patient enrollment that was brought about by the COVID-19 pandemic, resulting in an under-powered study. However, despite a small sample size, a positive efficacy trend in favor of AR-301 in VAP patients was observed (p=0.242 at day 21). Remarkably, in a prespecified subpopulation of adults 65 years and older, the efficacy signal was increased by approximately 300%, reaching statistical significance level (p=0.056 at day 21 and p=0.025 at day 28 post-treatment). Furthermore, AR-301 treated patients had a median reduction of length of stay in the intensive care unit (ICU) and hospital by 7 days and by 9 days in the over 65 subpopulation. The clinical data and the proposed design for the second and final Phase 3 study were presented to the FDA and the European Medicines Agency (EMA). Concurrence has been achieved with the regulators on a single, globally harmonized Phase 3 study for licensure. Moving the final Phase 3 study forward is predicated on finalizing the above proposed investment.

Phase 3 product candidate AR-320

Following a lengthy effort to resolve the product licensing dispute with MedImmune Limited ("MedImmune", a subsidiary of AstraZeneca), a mutually satisfactory resolution has not been reached. The Company is currently exploring its legal options for loss recovery.

Development status: AR-320 is being developed for the prevention of Ventilator Associated Pneumonia (VAP) in a pivotal Phase 3 clinical trial. The AR-320-003 Phase 3 clinical study was initiated in 2022, with 24 patients enrolled. The study was placed on voluntary hold at the time that the product license dispute with MedImmune arose, and is now expected to be discontinued.

Company operations and financials

The Company's primary focus in the past year has been on business development discussions related to its clinical product candidates, on laboratory activities to support two NIH active grant awards and on one funded external collaboration related to the APEX platform technology. Operating expenses, including clinical trial and clinical supplies manufacturing have been substantially lowered while all clinical trials have either been completed or terminated. The Company has been working with its lead lender Streeterville Capital, LLC to service the loan. The Company's near-term goals will be to successfully complete the business objectives described above and to become current on its SEC filings in the first half of 2025.

About Aridis Pharmaceuticals, Inc.

Aridis Pharmaceuticals, Inc. discovers and develops anti-infectives to be used as add-on treatments to standard-of-care antibiotics. The Company is advancing multiple clinical stage monoclonal antibodies (mAbs) targeting bacteria that cause life-threatening infections such as ventilator associated pneumonia (VAP) and hospital acquired pneumonia (HAP), in addition to preclinical stage antiviral mAbs. The use of mAbs as anti-infective treatments represents an innovative therapeutic approach that harnesses the human immune system to fight infections and is designed to overcome the deficiencies associated with current standard-of-care broad spectrum antibiotics. Such deficiencies include, but are not limited to, increasing drug resistance, short duration of efficacy, disruption of the normal flora of the human microbiome and lack of differentiation among current treatments. The Company's mAb portfolio is complemented by a novel non-antibiotic small molecule anti-infective candidate mechanism being developed to treat lung infections in cystic fibrosis patients. The Company's pipeline is highlighted below:

Aridis' Pipeline

AR-301 (VAP). AR-301 is a fully human IgG1 mAb targeting gram-positive Staphylococcus aureus (S. aureus) alpha-toxin that has recently completed the first of two planned Phase 3 superiority clinical studies as an adjunctive treatment of S. aureus ventilator associated pneumonia (VAP).

AR-320 (VAP). AR-320 is a fully human IgG1 mAb targeting S. aureus alpha-toxin that is being evaluated in a Phase 3 clinical study as a preventative treatment of S. aureus colonized mechanically ventilated patients who do not yet have VAP.

AR-501 (cystic fibrosis). AR-501 is an inhaled formulation of gallium citrate with broad-spectrum anti-infective activity being developed to treat chronic lung infections in cystic fibrosis (CF) patients. This program has successfully completed Phase 2a clinical development in CF patients.

AR-701 (COVID-19). AR-701 is a cocktail of fully human mAbs discovered from convalescent COVID-19 patients that are directed at multiple protein epitopes on the SARS-CoV-2 virus. It is formulated for delivery via intramuscular injection or inhalation using a nebulizer.

AR-401 (blood stream infections). AR-401 is a fully human mAb preclinical program aimed at treating infections caused by gram-negative Acinetobacter baumannii.

AR-101 (HAP). AR-101 is a fully human immunoglobulin M, or IgM, mAb in Phase 2 clinical development targeting Pseudomonas aeruginosa (P. aeruginosa) liposaccharides serotype O11, which accounts for approximately 22% of all P. aeruginosa hospital acquired pneumonia (HAP) cases worldwide.

AR-201 (RSV infection). AR-201 is a fully human IgG1 mAb out-licensed preclinical program aimed at neutralizing diverse clinical isolates of respiratory syncytial virus (RSV).

For additional information on Aridis Pharmaceuticals, please visit https://aridispharma.com/. [I haven't reviewed the website, but you'll want to be sure there are no inconsistencies with this release]

Forward-Looking Statements

Certain statements in this press release are forward-looking statements that involve a number of risks and uncertainties. These statements may be identified by the use of words such as "anticipate," "believe," "forecast," "estimated" and "intend" or other similar terms or expressions that concern Aridis' expectations, strategy, plans or intentions. These forward-looking statements are based on Aridis' current expectations and actual results could differ materially. There are a number of factors that could cause actual events to differ materially from those indicated by such forward-looking statements. These factors include, but are not limited to, the need for additional financing, the timing of regulatory submissions, Aridis' ability to obtain and maintain regulatory approval of its existing product candidates and any other product candidates it may develop, approvals for clinical trials may be delayed or withheld by regulatory agencies, risks relating to the timing and costs of clinical trials, risks associated with obtaining funding from third parties, management and employee operations and execution risks, loss of key personnel, competition, risks related to market acceptance of products, intellectual property risks, risks related to business interruptions, including the outbreak of COVID-19 coronavirus, which could seriously harm our financial condition and increase our costs and expenses, risks associated with the uncertainty of future financial results, Aridis' ability to attract collaborators and partners and risks associated with Aridis' reliance on third party organizations. While the list of factors presented here is considered representative, no such list should be considered to be a complete statement of all potential risks and uncertainties. Unlisted factors may present significant additional obstacles to the realization of forward-looking statements. Actual results could differ materially from those described or implied by such forward-looking statements as a result of various important factors, including, without limitation, market conditions and the factors described under the caption "Risk Factors" in Aridis' 10-K for the year ended December 31, 2022 and Aridis' other filings made with the Securities and Exchange Commission. Forward-looking statements included herein are made as of the date hereof, and Aridis does not undertake any obligation to update publicly such statements to reflect subsequent events or circumstances.

Contact:

Rebecca Edwards

Administrator

Aridis Pharmaceuticals, Inc.

info@aridispharma.com

408-385-1742

SOURCE Aridis Pharmaceuticals, Inc.