VistaGen CEO Issues Update Letter to Stockholders

SOUTH SAN FRANCISCO, CA--(Marketwire -05/14/12)- VistaGen Therapeutics, Inc. (OTC.BB: VSTA) (VSTA.OB), a biotechnology company applying stem cell technology for drug rescue, today issued the following letter to its stockholders and the investment community from its CEO, Shawn Singh.

To our valued Stockholders:

Since becoming a public company one year ago, we have progressed to perhaps the most exciting time in our company's 14-year history. To arrive at this point, more than $45 million, obtained through various strategic collaborations, investments and grant awards, has been carefully employed. We believe our pluripotent stem cell technology platform, Human Clinical Trials in a Test Tube, combined with the network of strategic relationships we have announced, will allow us to secure additional capital and the large market drug rescue opportunities that can deliver value to our stockholders.

Since the beginning of the year, our team has carefully reviewed our Top 10 drug rescue opportunities and narrowed our focus to our Top 5 candidates. Now we intend to launch our initial drug rescue program and secure strategic capital necessary to support it, as well as launch our second drug rescue program by year-end. We also are working on validation of LiverSafe 3D, our bioassay system for drug rescue involving liver toxicity and drug metabolism issues, for launch during the first half of next year.

The pharmaceutical industry continues to face extremely high barriers in bringing new medicine to market. The number of drugs approved by the FDA over the past decade has dropped precipitously, by over 50%, in spite of staggering increases in resources devoted to R&D by pharmaceutical companies. Based on the progress we have made with CardioSafe 3D and our efforts to build our strategic drug rescue ecosystem of collaborators, we believe our core business model -- to use our stem cell technology and strategic relationships to develop less toxic variants of drugs that have already been proven in vitro to be effective -- is now more commercially promising than at any other point in our history. We believe we will be able to help major pharmaceutical companies avoid the loss of years of time and millions of dollars spent in developing new therapies that have positive efficacy data, but must be discontinued due to later discovery of unsafe toxicity levels for human heart and liver tissue.

Over the past year, we have secured additional intellectual property protection and entered into strategic relationships with leading biotech firms and academic researchers to support development of our stem technology and our drug rescue-based commercialization initiatives:

Over the next 12 months, we have an ambitious agenda to work closely with our advisors and collaborators to secure capital and achieve these transformative milestones:

Our goals are reachable, with strategic financing. We believe we have the right technology, intellectual property, development teams and specialized focus to deliver on our founding mission -- "putting humans first" -- bringing clinically relevant human biology to the front end of the drug development process, long before standard animal and human testing, and using better cells to make better medicine.

We would like to thank our partners, advisors, employees and each of you, our loyal stockholders, for helping support us in our efforts to deliver long-term value for you.

Sincerely,

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VistaGen CEO Issues Update Letter to Stockholders