Sunovion Discontinues Dasotraline Program

Sunovion Pharmaceuticals Inc. (Sunovion) today announced that it has withdrawn the New Drug Applications (NDAs) for dasotraline, a novel dopamine and norepinephrine reuptake inhibitor (DNRI), for the treatment of moderate-to-severe binge eating disorder (BED) and attention deficit hyperactivity disorder (ADHD).

While Sunovion considers dasotraline to be a promising, novel treatment for BED and ADHD, we believe that further clinical studies would be needed to support a regulatory approval for dasotraline in these indications.

Sunovion consistently evaluates and prioritizes its pipeline of potential medicines. At this time, the Company has decided not to pursue any further development of dasotraline.

Sunovion remains committed to discovering, developing and commercializing innovative medicines for people living with serious neuropsychiatric conditions.

About Sunovion Pharmaceuticals Inc. (Sunovion)

Sunovion is a global biopharmaceutical company focused on the innovative application of science and medicine to help people with serious medical conditions. Sunovion’s vision is to lead the way to a healthier world. The company’s spirit of innovation is driven by the conviction that scientific excellence paired with meaningful advocacy and relevant education can improve lives. With patients at the center of everything it does, Sunovion has charted new paths to life-transforming treatments that reflect ongoing investments in research and development and an unwavering commitment to support people with psychiatric, neurological and respiratory conditions.

Headquartered in Marlborough, Mass., Sunovion is an indirect, wholly-owned subsidiary of Sumitomo Dainippon Pharma Co., Ltd. Sunovion Pharmaceuticals Europe Ltd., based in London, England, and Sunovion Pharmaceuticals Canada Inc., based in Mississauga, Ontario, are wholly-owned direct subsidiaries of Sunovion Pharmaceuticals Inc. Additional information can be found on the company’s websites: www.sunovion.com, www.sunovion.eu and www.sunovion.ca. Connect with Sunovion on Twitter, LinkedIn, Facebook and YouTube.

About Sumitomo Dainippon Pharma Co., Ltd.

Sumitomo Dainippon Pharma is among the top-ten listed pharmaceutical companies in Japan, operating globally in major pharmaceutical markets, including Japan, the U.S., China and the European Union. Sumitomo Dainippon Pharma aims to create innovative pharmaceutical products in the Psychiatry & Neurology area, the Oncology area and Regenerative medicine/Cell therapy field, which have been designated as the focus therapeutic areas. Sumitomo Dainippon Pharma is based on the merger in 2005 between Dainippon Pharmaceutical Co., Ltd., and Sumitomo Pharmaceuticals Co., Ltd. Today, Sumitomo Dainippon Pharma has more than 6,000 employees worldwide. Additional information about Sumitomo Dainippon Pharma is available through its corporate website at https://www.ds-pharma.com.

Sunovion Pharmaceuticals Inc. is a U.S. subsidiary of Sumitomo Dainippon Pharma Co., Ltd.

© 2020 Sunovion Pharmaceuticals Inc. All rights reserved.

For a copy of this release, visit Sunovion’s web site at www.sunovion.com

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