DEVON, PA — Zynerba Pharmaceuticals, Inc. (NASDAQ: ZYNE), the leader in innovative pharmaceutically-produced transdermal cannabinoid therapies for rare and near-rare neuropsychiatric disorders, today announced top line results from the 14-week pivotal CONNECT-FX (Clinical study of Cannabidiol (CBD) in Children and Adolescents with Fragile X) trial. The multi-national, randomized, double-blind, placebo-controlled trial assessed the efficacy and safety of Zygel™ CBD gel as a treatment in for behavioral symptoms of Fragile X syndrome (FXS) in 212 patients.
Zygel did not achieve statistical significance versus placebo in the primary endpoint of improvement in the Social Avoidance subscale of the Aberrant Behavior Checklist – Community FXS (ABC-CFXS). Zygel also did not demonstrate statistical significance versus placebo in the three key secondary endpoints, which were the change from baseline to the end of the treatment period in the Irritability subscale score of the ABC-CFXS, the Socially Unresponsive/Lethargic subscale score of the ABC-CFXS and Improvement in Clinical Global Impression (CGI-I).
A pre-planned ad hoc analysis of the most severely impacted patients in the trial, as defined by patients having at least 90% methylation (“full methylation”) of the impacted FMR1 gene, demonstrated that patients receiving Zygel achieved statistical significance in the primary endpoint of improvement at 12 weeks of treatment in the Social Avoidance subscale of the ABC-CFXS compared to placebo (p=0.020). This group comprised 80% of the patients enrolled in the CONNECT-FX study. The Company believes that full methylation occurs in approximately 60% of the overall FXS patient population. Based on this analysis, Zynerba intends to meet with the FDA regarding a regulatory path forward for Zygel.
“This study identified a key population of patients who appear to benefit from treatment of their behavioral symptoms of FXS with Zygel,” said Randi J. Hagerman, MD, an investigator in the clinical trial and Medical Director and Endowed Chair in Fragile X Research at UC Davis MIND Institute and Distinguished Professor at the Department of Pediatrics at UC Davis School of Medicine. “Zygel has the potential to be an important therapeutic option for the most severely impacted patients with Fragile X.”
“The results from CONNECT-FX identified a significant patient population who responded well to Zygel and may provide us with a pathway towards licensure,” said Armando Anido, Zynerba’s Chairman and Chief Executive Officer. “We intend to discuss the results of the study with the FDA as soon as possible. On behalf of the entire Zynerba team, I want to sincerely thank the patients, families and investigators who participated in this study as well as the National Fragile X Foundation, the FRAXA Research Foundation, and the Fragile X Association of Australia for their assistance in this study.”
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