Arch Biopartners Announces Toronto General Hospital Ethics Board Approval to Join the Phase II Trial for LSALT Peptide Targeting Cardiac Surgery Associated-Acute Kidney Injury (CS-AKI)

TORONTO, April 22, 2025 (GLOBE NEWSWIRE) -- , (“Arch” or the “Company”) (TSX Venture: ARCH and OTCQB: ACHFF), announced today that the University Health Network (UHN) Research Ethics Board has granted approval for Toronto General Hospital to participate in the Company’s ongoing for the prevention and treatment of cardiac surgery-associated acute kidney injury (CS-AKI).

With this ethics approval in place and all training and preparations complete, the clinical team at Toronto General Hospital (TGH) is now cleared to begin patient recruitment. TGH will be the seventh site to be activated globally and the second site to recruit patients in Canada.



Quote from Mr. Richard Muruve, CEO Arch Biopartners:

“​We are pleased to receive ethics approval from the UHN Research Ethics Board and to initiate patient recruitment at Toronto General Hospital for our CS-AKI Phase II trial. Going forward, we plan to reduce recruitment in Turkey and increase recruitment in Canada to broaden the geographic and demographic data of our trial.”

About the CS-AKI Phase II Trial

The CS-AKI Phase II trial is an international multi-center, randomized, double-blind, placebo-controlled study of LSALT peptide with a recruitment target of 240 patients.

The primary objective of the trial is to evaluate the percentage of subjects with acute kidney injury (AKI) within seven days following on-pump (heart-lung machine) cardiac surgery, defined by the KDIGO (Kidney Disease: Improving Global Outcomes) criteria.

Details of the Phase II trial, entitled “ can be viewed at .

CS-AKI and LSALT peptide

CS-AKI is often caused by ischemia-reperfusion injury (IRI) that reduces blood flow (ischemia) and thus oxygen in the kidney, causing kidney cell damage. Once blood flow is restored to normal (reperfusion), inflammation is triggered and injury to kidney cells is exacerbated. There is no therapeutic treatment available in the market today that prevents acute kidney injury of the type commonly experienced by on-pump cardiac surgery patients. In the worst cases of AKI, the kidneys fail, requiring kidney dialysis or kidney transplant for survival.

 is the Company’s lead drug candidate for preventing and treating inflammation injury in the kidneys, lungs, and liver. The drug targets the dipeptidase-1 (DPEP1) pathway and has been shown by Arch scientists and their collaborators to prevent providing the scientific rationale for Arch to use LSALT peptide in this CS-AKI trial. Details of their findings were published in the journal, , titled  by Lau et. al. and can be found along with the latest about DPEP1 and LSALT peptide at the Company’s website.

Incidence of CS-AKI

Acute kidney injury is a known common complication in patients after coronary artery bypass grafting (CABG) and other cardiac surgeries, including on-pump surgeries, which increase the risk of AKI. The reported prevalence of CS-AKI is up to 30% and is independently associated with an increase in morbidity and mortality.

About Arch Biopartners

Arch Biopartners Inc. is a late-stage clinical trial company focused on preventing acute kidney injury (AKI) and organ damage caused by inflammation and toxins. The Company is advancing a pipeline of drug candidates that includes , a first-in-class inhibitor of the DPEP1 inflammation pathway, and , a repurposed drug with off-target effects that help block toxin uptake into the kidneys – two approaches addressing distinct and urgent causes of AKI.

For more information on Arch Biopartners’ science and drug platform, please visit:

For investor information and other public documents the company has also filed on SEDAR+, please visit

The Company has 65,906,366 common shares outstanding.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of applicable Canadian securities laws regarding expectations of our future performance, liquidity and capital resources, as well as the ongoing clinical development of our drug candidates targeting the dipeptidase-1 (DPEP-1) pathway, including the outcome of our clinical trials relating to LSALT peptide (Metablok) or cilastatin, the successful commercialization and marketing of our drug candidates, whether we will receive, and the timing and costs of obtaining, regulatory approvals in Canada, the United States, Europe and other countries, our ability to raise capital to fund our business plans, the efficacy of our drug candidates compared to the drug candidates developed by our competitors, our ability to retain and attract key management personnel, and the breadth of, and our ability to protect, our intellectual property portfolio. These statements are based on management’s current expectations and beliefs, including certain factors and assumptions, as described in our most recent annual audited financial statements and related management discussion and analysis under the heading “Business Risks and Uncertainties”. As a result of these risks and uncertainties, or other unknown risks and uncertainties, our actual results may differ materially from those contained in any forward-looking statements. The words “believe”, “may”, “plan”, “will”, “estimate”, “continue”, “anticipate”, “intend”, “expect” and similar expressions are intended to identify forward-looking statements, although not all forward-looking statements contain these identifying words. We undertake no obligation to update forward-looking statements, except as required by law. Additional information relating to Arch Biopartners Inc., including our most recent annual audited financial statements, is available by accessing the Canadian Securities Administrators’ System for Electronic Document Analysis and Retrieval (“SEDAR”) website at .

The science and medical contents of this release have been approved by the Company’s Chief Science Officer

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release