Posters Highlight New Insights into Social Anxiety Disorder

Vistagen (Nasdaq: VTGN), a clinical-stage biopharmaceutical company pioneering neuroscience with nose-to-brain neurocircuitry to develop and commercialize a new class of intranasal product candidates called pherines, today announced it will present at the Anxiety and Depression Association of America (ADAA) Conference in Las Vegas, Nevada from April 3 to 5, 2025. The Company’s poster presentations will explore the age of onset of social anxiety disorder (SAD) from participants in fasedienol clinical trials, and new data on the characteristics of young adults with and without SAD.

Poster Presentations:

Date: Friday, April 4, 2025, 5:00 p.m. Eastern Time

Title: Age of Onset of Social Anxiety Disorder (SAD) in Trials of Fasedienol (PH94B) Nasal Spray

Authors: Ester Salmán, MPH; Ross A. Baker, PhD; Stephen D. Coffey, BA; Rita Hanover, PhD; Michael R. Liebowitz, MD, and Louis Monti, MD, PhD

Poster Number: F40

Date: Saturday, April 5, 2025, 5:00 p.m. Eastern Time

Title: Social Anxiety Disorder among Young Adults (18 – 22 years): A Cross-Sectional Study Using Data from the US National Health and Wellness Survey

Authors: Ross A. Baker, PhD; Josh Prince; Nikoletta Sternbach; Soohyun Hwang, PhD, MPH

Poster Number: S109

These posters will be available on the Publications page of Vistagen’s website on Monday, April 7, 2025.

About Vistagen

Headquartered in South San Francisco, CA, Vistagen (Nasdaq: VTGN) is a clinical-stage biopharmaceutical company leveraging a deep understanding of nose-to-brain neurocircuitry to develop and commercialize a broad and diverse pipeline of clinical-stage product candidates from a new class of intranasal therapies called pherines.

Pherines specifically and selectively bind to peripheral receptors in human nasal chemosensory neurons, rapidly activating olfactory bulb-to-brain neurocircuits which regulate brain areas involved in behavior and autonomic nervous system activity. They achieve therapeutic benefits without requiring systemic absorption or uptake into the brain, giving them a differentiated safety profile vs. other pharmacological options. Vistagen’s neuroscience pipeline also includes an oral prodrug with potential to impact certain neurological conditions involving the NMDA receptor. Vistagen is passionate about developing transformative treatment options to improve the lives of individuals underserved by the current standard of care for multiple highly prevalent indications, including social anxiety disorder, major depressive disorder, and vasomotor symptoms (hot flashes) associated with menopause. Connect at www.Vistagen.com.

Forward-looking Statements

This press release contains certain forward-looking statements within the meaning of the federal securities laws. These forward-looking statements involve known and unknown risks that are difficult to predict and include all matters that are not historical facts. In some cases, you can identify forward-looking statements by the use of words such as “may,” “could,” “expect,” “project,” “outlook,” “strategy,” “intend,” “plan,” “seek,” “anticipate,” “believe,” “estimate,” “predict,” “potential,” “strive,” “goal,” “continue,” “likely,” “will,” “would” and variations of these terms and similar expressions, or the negative of these terms or similar expressions. Such forward-looking statements are necessarily based upon estimates and assumptions that, while considered reasonable by Vistagen and its management, are inherently uncertain. As with all pharmaceutical products, there are substantial risks and uncertainties in the process of development and commercialization and actual results or developments may differ materially from those projected or implied in these forward-looking statements. Among other things, there can be no guarantee that fasedienol or any of Vistagen’s other product candidates will successfully complete ongoing or future clinical trials, receive regulatory approval or be commercially successful. These risks and others are more fully discussed in the section entitled “Risk Factors” in Vistagen’s Annual Report on Form 10-K for the fiscal year ended March 31, 2024, and Quarterly Report on Form 10-Q for the period ended December 31, 2024, as well as discussions of potential risks, uncertainties, and other important factors in our other filings with the U.S. Securities and Exchange Commission (SEC). Vistagen’s SEC filings are available on the SEC’s website at www.sec.gov. You should not place undue reliance on these forward-looking statements, which apply only as of the date of this press release and should not be relied upon as representing Vistagen’s views as of any subsequent date. Vistagen explicitly disclaims any obligation to update any forward-looking statements other than as may be required by law. If Vistagen does update one or more forward-looking statements, no inference should be made that Vistagen will make additional updates with respect to those or other forward-looking statements.

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