Rett REVOLUTION Trial: An Exploratory Evaluation of the Safety and Efficacy of Vorinostat in Rett Syndrome

The RETT REVOLUTION trial is a placebo-controlled, single-blinded, exploratory study with patients serving as their own control ("N of 1" trial design) where the safety and efficacy of vorinostat in the treatment of Rett syndrome will be evaluated. Each patient will be self-controlled in an adapted N-of-1 study design methodology by using a 4-week placebo baseline. Vorinostat dose escalation will occur every 8 weeks of daily dosing: placebo, 80mg/m2/day, 160mg/m2/day. Key study objectives will include: * To confirm the safety and tolerability of oral vorinostat 80mg/m2/day and 160mg/ m2/day dose levels when administered to typical Rett patients * To identify the nature and magnitude of treatment response to vorinostat, as measured by changes in clinical and laboratory parameters indicative of trend towards benefit, as well as changes in mRNA expression (transcriptome response) * Provide a data-driven justification for future study design and statistical analysis plan for subsequent clinical studies assessing safety and efficacy of vorinostat in Rett syndrome