Sona Announces Ethics Committee Approval For Melanoma Clinical Trial

Halifax, Nova Scotia--(Newsfile Corp. - June 27, 2025) - Sona Nanotech Inc. (CSE: SONA) (OTCQB: SNANF) (the "Company", "Sona"), an oncology-focused life sciences company developing innovative therapies based on its uniquely biocompatible gold nanorod technology, announces that it has received ethics committee approval to proceed with its previously announced early feasibility study of its Targeted Hyperthermia Therapy ("THT") cancer treatment.

Sona CEO David Regan commented, "This ethics committee approval gives us the green light we've been waiting for to begin enrolling patients suffering from late-stage melanoma, for whom no other therapy has worked, to participate in our first-in-human clinical trial. Our clinical trial partner will now begin enrolling patients, and we will advise when a first dosing of our THT treatment has occurred. Sona's CMO, Dr. Carman Giacomantonio, will provide clinical training and will observe the application of THT in the first patients enrolled."

The study is designed to assess safety, tolerability, and preliminary efficacy and will include two treatments of Sona's THT, one week apart, for patients with advanced melanoma who are on, but have failed to respond to, a standard of care immunotherapy protocol. The study is anticipated to be conducted this summer with an initial read-out of final results expected by September, subject to enrollment rates.

About Sona Nanotech Inc.
Sona Nanotech is developing Targeted Hyperthermia™, a photothermal cancer therapy, which uses therapeutic heat to treat solid cancer tumors. The heat is delivered to tumors by infrared light that is absorbed by Sona's gold nanorods in the tumor and re-emitted as heat. Therapeutic heat (42-48°C) stimulates the immune system, shrinks tumors, inactivates cancer stem cells, and increases tumor perfusion – thus enabling drugs to reach all tumor compartments more effectively. Targeted Hyperthermia promises to be safe, effective, minimally invasive, competitive in cost, and a valuable adjunct to drug therapy and other cancer treatments.

Sona has developed multiple proprietary methods for the manufacture of gold nanoparticles which it uses for the development of both cancer therapies and diagnostic testing platforms. Sona Nanotech's gold nanorod particles are cetyltrimethylammonium ("CTAB") free, eliminating the toxicity risks associated with the use of other gold nanorod technologies in medical applications.

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION: This press release includes certain "forward-looking statements" under applicable Canadian securities legislation, including statements regarding the anticipated applications and potential opportunities of Targeted Hyperthermia Therapy, and Sona's preclinical and clinical study plans. Forward-looking statements are necessarily based upon a number of assumptions or estimates that, while considered reasonable, are subject to known and unknown risks, uncertainties, and other factors which may cause the actual results and future events to differ materially from those expressed or implied by such forward-looking statements, including the risk that Sona may not be able to successfully obtain sufficient clinical and other data to submit regulatory submissions, raise sufficient additional capital, secure patents or develop the envisioned therapy, and the risk that THT may not prove to have the benefits currently anticipated. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. Sona disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.

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