VistaGen Therapeutics and EverInsight Therapeutics Enter Strategic Collaboration to Develop and Commercialize PH94B for Anxiety Disorders in Greater China, South Korea and Southeast Asia

Jun  2020

VistaGen Therapeutics, Inc. (NASDAQ: VTGN), a clinical-stage biopharmaceutical company developing new generation medicines for anxiety

VistaGen Therapeutics, Inc. (NASDAQ: VTGN), a clinical-stage biopharmaceutical company developing new generation medicines for anxiety, depression and other central nervous system (CNS) diseases and disorders with high unmet need, and EverInsight Therapeutics Inc., a biopharmaceutical company focused on developing and commercializing transformative pharmaceutical products that address critical unmet medical needs for patients in Greater China and other parts of Asia, today announced they have entered into a strategic licensing and collaboration agreement for the clinical development and commercialization of PH94B, VistaGen's novel, rapid-onset neurosteroid drug  candidate for multiple anxiety-related disorders, in Greater China, South Korea and Southeast Asia. In December 2019,  VistaGen received Fast Track designation from  the U.S. Food  and Drug Administration (FDA) for development of PH94B for treatment of social anxiety disorder (SAD), the FDA's first Fast Track designation for a SAD drug candidate. The goal of the collaboration is to advance and support Phase 3 development and commercialization of PH94B as a potentially groundbreaking anti-anxiety medicine for patients in Greater China and other important Asian markets.


Under the terms of the agreement, EverInsight will be responsible for clinical development, regulatory submissions and commercialization of PH94B neuroactive nasal spray for acute treatment of SAD, and potentially other anxiety-related indications, in markets in Greater China (Mainland China, Hong  Kong, Macau and Taiwan), South Korea and Southeast Asia (Indonesia, Malaysia, Philippines, Thailand and Vietnam) (the Territory). EverInsight will make a non-dilutive upfront payment of $5 million to VistaGen, and VistaGen is eligible to receive additional development and commercial milestone payments of up to $172 million. VistaGen will receive tiered royalties on sales of PH94B in the Territory, if Phase 3 development efforts are successful. VistaGen retains exclusive rights to develop and commercialize PH94B in all markets outside the Territory.

"We are pleased to collaborate with EverInsight, a company that shares our vision and excitement for bringing PH94B, a potentially transformative treatment for multiple anxiety disorders, to millions of individuals with unmet needs around the world. EverInsight is an ideal partner to support Phase 3 clinical development and commercial launch of PH94B in Greater China and other Asian markets, as we continue to focus  on those activities in

the U.S.," stated Shawn Singh, Chief Executive Officer of VistaGen. "Anxiety, including social anxiety disorder, is a common and potentially debilitating illness that can  have  significant emotional, functional and economic effects on those who suffer, as well as their families,friends and colleagues. With the recent onset of mental health stressors associated with the COVID-19 pandemic and social justice unrest, the rising prevalence of anxiety, depression, and suicide is alarming. PH94B has  a fundamentally different mechanism of action than all current treatments for social anxiety disorder and numerous other anxiety disorders, arguably the first new rapid-onset mechanism of action for treatment of anxiety in several decades. Our strategic collaboration today with EverInsight positions PH94B one step closer to becoming a potentially paradigm-shifting new treatment alternative for individuals worldwide."

"We partner with innovative companies that develop novel medicines with large commercial potential in Greater China and other Asian markets. PH94B is an extremely valuable asset that the world desperately needs today to provide potential relief from  the debilitating impact of anxiety on daily life," said  Sean Cao, Managing Director of CBC Group, which is currently funding EverInsight. "We are delighted to partner with VistaGen's team and are highly confident in our  plan to advance PH94B through the necessary clinical development and approval process focused on successful commercialization in our  core markets."

About VistaGen

VistaGen Therapeutics is a multi-asset, clinical-stage biopharmaceutical company developing new generation medicines for anxiety, depression and certain CNS diseases and disorders where current treatments are inadequate, resulting in high unmet need. VistaGen's  pipeline  is focused on three clinical-stage CNS drug candidates, each with a differentiated mechanism of action, an exceptional safety profile, and therapeutic potential in multiple large and growing CNS markets. For more information, please visit  and connect with VistaGen on Twitter ,  LinkedIn  and  Facebook .

About EverInsight Therapeutics EverInsight Therapeutics Inc. is a biopharmaceutical company focused on developing and commercializing transformative pharmaceutical products

that address critical unmet medical needs in CNS and ophthalmology for patients in Greater China and other Asian markets. The management team of EverInsight Therapeutics has  deep expertise and an extensive track  record of high-quality clinical development, regulatory affairs, CMC, business development and operations both in China and with leading global pharmaceutical companies. EverInsight Therapeutics is currently funded by the CBC Group.

About CBC Group

CBC Group (formerly C-Bridge Capital) is one of the largest and most active healthcare-dedicated investment firms  in Asia focused on platform-building and buyout opportunities across three core areas within the healthcare sector: pharmaceutical & biotech, medtech and healthcare services. CBC's operationally intensive approach empowers healthcare sector champions to make transformative changes to enable sustainable long-term growth, fulfill unmet medical needs and continuously improve the standard of living and quality of care in China and the rest of Asia. Founded in 2014,  CBC has  a strong team of investment, healthcare and portfolio management professionals based across Singapore, Shanghai,Beijing, Hong  Kong and New York.

About PH94B

PH94B is a first-in-class, odorless, rapid- onset (within approximately 15 minutes) synthetic neurosteroid nasal spray with therapeutic potential across a broad range of anxiety-related disorders. Easily self-administered in microgram doses, PH94B does not  require systemic uptake and distribution to produce its rapid- onset anti-anxiety effects. VistaGen is initially developing PH94B as a potential fast-acting, non-sedating, non-addictive new generation acute treatment of social anxiety disorder (SAD), as well as for adjustment disorder with anxiety related to the COVID-19 pandemic. With its rapid- onset pharmacology, lack of systemic exposure and excellent safety profile, PH94B also has  potential as a novel treatment for postpartum anxiety, post- traumatic stress disorder, preoperative anxiety, panic disorder and other anxiety- related disorders. VistaGen is preparing for Phase 3 clinical development of

PH94B for SAD and Phase 2A development for AjDA associated with the COVID-19 pandemic. The FDA has  granted Fast Track designation for development of PH94B as a treatment for SAD, the first such designation by the FDA for SAD. View more background information on SAD and a video on PH94B's  mechanism of action.

Forward-Looking Statements Various statements in this release are "forward-looking statements" concerning VistaGen's future expectations, plans and prospects, including: the potential of PH94B to be a paradigm shift in the treatment of SAD and other anxiety- related disorders; the potential for successful development and commercialization of PH94B in the U.S. and the EverInsight markets, including the Territory; and expectations for future milestones and royalties under the collaboration described herein. These forward-looking statements are neither promises nor  guarantees of future performance, and are subject to a variety of risks and uncertainties which could cause actual results to differ materially from  those contemplated in these forward-looking statements, including the risks that:  development and review of PH94B may not  be achieved in any market; regulatory authorities in the U.S. or in the EverInsight markets, including the Territory, may decide that the design or results of the PH94B clinical program are not  sufficient for regulatory approval for acute treatment of SAD or any other indication; development of PH94B may not be successful in any indication; success in nonclinical studies or in earlier stage clinical trials may not  be repeated or observed in ongoing or future studies which may not  support further development or be sufficient to gain regulatory approval to market the product; adverse events may be encountered at any stage of development that negatively impact further development; and even if development efforts are successful there may be events that limit market potential or trigger reductions in milestones or royalties under the collaboration described herein. Other risks and uncertainties include, but  are not  limited to, issues related to: adverse domestic and foreign healthcare reforms and changes of laws and regulations; general industry and market conditions; changes in interest rates and currency exchange rates; manufacturing and marketing risks, which include, but  are not  limited to, inadequate capacity to meet demand and unavailability of raw materials; entry of competitive products; and other technical and other unexpected hurdles in the development, manufacture and commercialization of PH94B, as well as those risks more fully discussed in the section entitled "Risk Factors" in VistaGen's most recent Quarterly Report on Form 10-Q, as well as discussions of potential risks, uncertainties, and other important factors in either company's other filings with the Securities and Exchange Commission. In addition, any forward-looking statements represent the companies' views only as of today,  and should not  be relied upon as representing their views as of any subsequent date.The companies explicitly disclaim any obligation to update any forward-looking statements.

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