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Clinical Trial Summary

The purpose of the study is to prospectively assess longitudinal changes in biomarkers (MECP2, potential biomarkers of target engagement and disease activity) in cerebrospinal fluid (CSF) and blood; characterize longitudinal changes in performance on clinical scales (clinician-reported measures of neurodevelopment and functioning) and caregiver-reported outcome assessments (communication, gastrointestinal, social-emotional-adaptive behavioral measures); evaluate longitudinal changes in caregiver-reported health-related quality-of-life measures; and assess the frequency, type, and severity of seizures over time.


Clinical Trial Description

This is a multi-center, non-randomized, non-interventional prospective and retrospective study in up to 40 participants with MECP2 duplication syndrome (MDS) who can undergo general anesthesia or conscious sedation to collect fluid biomarkers (CSF and blood), undergo electrophysiological assessments (electroencephalogram [EEG], evoked potentials [EP], pupillometry), clinical assessments and caregiver reported outcomes measures, to be used in support of the development of therapies for MDS. The study duration for each participant will be approximately 110 weeks. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06014541
Study type Observational
Source Ionis Pharmaceuticals, Inc.
Contact Ionis Pharmaceuticals, Inc.
Phone (844) 662-0293
Email ionisMDSNaturalHistorystudy@clinicaltrialmedia.com
Status Recruiting
Phase
Start date October 3, 2023
Completion date June 2026