At this year’s American Academy of Child and Adolescent Psychiatry (AACAP) Annual Meeting in Seattle, Washington, October 22-27, Ovid Therapeutics announced additional efficacy data from the company’s Phase 2 STARS trial that further support the potential of OV101, a novel selective extrasynaptic GABAA receptor agonist that is being investigated to treat Angelman syndrome.

Angelman syndrome is a life-long genetic disorder that is characterized by a variety of signs and symptoms, and for which there are no FDA-approved medicines or an established treatment paradigm.

The additional efficacy data and analyses are being presented in a poster by Alex Kolevzon, M.D., professor of psychiatry and pediatrics at the Icahn School of Medicine at Mount Sinai. The additional data and analyses revealed changes in certain sleep parameters and motor domains in both adults and adolescents in the OV101 15 mg once-daily dose group as further described in the detailed STARS data summary below. Ovid believes these observed changes may have contributed to the statistically significant improvement observed in the clinician-rated clinical global impressions of improvement (CGI-I) symptoms overall in the 15 mg once-daily OV101 dose group compared to placebo after 12 weeks of treatment, as reported in the topline data from the STARS trial on August 6, 2018. CGI-I is a global measure commonly used in clinical trials that allows the clinician to capture improvement in a constellation of clinical symptoms.

“Angelman syndrome is an extremely complex disorder in which any given patient may present with a variety of symptoms with different degrees of severity,” said Dr. Kolevzon. “These additional data from the STARS trial are encouraging, particularly the efficacy signals observed across the domains of sleep and motor, which appear to have driven the overall improvements seen in CGI-I. There are no established tools or endpoints to measure a drug’s effect on signs and symptoms of Angelman syndrome, and the information gained from the Phase 2 STARS trial establishes the potential of OV101 to offer a clinically meaningful benefit specific to people living with Angelman syndrome.”

“STARS was informed by extensive collaboration with the Angelman community,” said Jeremy Levin, DPhil, MB, BChir, chairman and chief executive officer of Ovid Therapeutics. “The data presented today contribute to a greater understanding and appreciation of the outcomes observed after administration of OV101 on key clinical aspects of Angelman syndrome. These results, together with those reported in August 2018, will help inform our discussions with the FDA when we meet with them later this year.”