Clinical Trials Logo

Clinical Trial Summary

This is a multicenter, double-blind, parallel-group, placebo controlled, 2-part study to evaluate the efficacy and safety of ZX008 when used as adjunctive therapy for the treatment of uncontrolled seizures in children and adults with cyclin-dependent kinase like-5 (CDKL5) deficiency disorder (CDD).


Clinical Trial Description

This is a 2-part multicenter trial. Part 1 is a 20-week randomized, double-blind, placebo-controlled, fixed-dose, parallel-group study to examine the efficacy and safety of ZX008 as an adjunctive therapy (to existing concomitant treatment with antiepileptic treatments [AETs]) in children and adults with a CDD diagnosis and uncontrolled seizures. Part 1 of the study is 20 weeks in duration and will consist of the following stages: Baseline Period (ie, Baseline [BL]; 4 weeks including the Screening Visit and baseline observation), Titration Period (ie, Titration; 2 weeks), Maintenance Period (ie, Maintenance; 12 weeks), and a 2-week Transition Period (ie, Transition; 2 weeks) to the open-label starting dose. Part 2 is a 54-week, open-label, flexible-dose, long-term extension for subjects who complete Part 1. Part 2 includes an Open-Label Extension (OLE) Treatment Period (52 weeks) with a Taper Period (ie, Taper; 2 weeks). The primary study analysis to evaluate the efficacy and safety of ZX008 in children and adults with CDD will be based on Part 1 data in all randomized subjects. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05064878
Study type Interventional
Source Zogenix, Inc.
Contact ZX008 Clinical Trials Information Desk
Phone 510-920-9700
Email [email protected]
Status Recruiting
Phase Phase 3
Start date October 2021
Completion date May 2024

See also
  Status Clinical Trial Phase
Active, not recruiting NCT03572933 - Study of Adjunctive Ganaxolone Treatment in Children and Young Adults With CDKL5 Deficiency Disorder Phase 3