Validated measures capable of demonstrating meaningful interventional change in the CDKL5 deficiency disorder (CDD) are lacking. The study objective was to modify the Rett Syndrome Gross Motor Scale (RSGMS) and evaluate its psychometric properties for individuals with CDD. ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2024
• January 2024

CDKL5 Deficiency Disorder (CDD) is a rare, X-linked dominant condition that causes a developmental and epileptic encephalopathy (DEE). The incidence is between ~ 1:40,000 and 1:60,000 live births. Pathogenic variants in CDKL5 lead to seizures from infancy and severe neurodevelopmental delay. ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2022
• June 2022

Pathogenic variants in the CDKL5 gene result in CDKL5 deficiency disorder (CDD), which is characterized by early-onset epilepsy, severe developmental delay, and often, cortical visual impairment. Validated clinical outcome measures are needed for future clinical trials to be successful. This study aimed to adapt the Rett Syndrome Hand Function Scale for CDKL5 deficiency disorder and evaluate its feasibility, acceptability, content validity, and reliability. ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2022
• May 2022

CDKL5 Deficiency Disorder (CDD) is a severe treatment-resistant form of early-onset epilepsy. Current treatment options are often ineffective and associated with adverse effects, forcing families to seek alternative therapies for their children including products derived from cannabis. Reportsof miraculous cures and a public preferencefor 'natural' therapies have resulted in considerable public interest, and so this study aimed to characterize the use of cannabis in these individuals, as well as compare caregiver perceptions of efficacy and safety to objective evidence of seizure control and number of antiepileptic drugs used. ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2021
• June 2021

CDKL5 Deficiency Disorder (CDD) is a rare genetic disorder caused by a mutation in the cyclin-dependent kinase-like 5 (CDKL5) gene. It is now considered to be a developmental and epileptic encephalopathy because of the early onset of seizures in association with severe global delay. Other features include cortical visual impairment, sleep and gastro-intestinal problems. Progress in clinical understanding, especially regarding the spectrum of functional ability, seizure patterns, and other comorbidities was initially slow but accelerated in 2012 with the establishment of the International CDKL5 Database (ICDD). Our aim was to use this data source to investigate quality of life (QOL) and associated factors in this disorder. ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2021
• January 2021

This study aimed to identify the quality of life domains important for individuals with CDKL5 deficiency disorder ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2019
• February 2019

There were differences in the presentation of clinical features occurring in the CDKL5 disorder and in Rett syndrome. ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2016
• May 2016

CDKL5 deficiency disorder (CDD) is a rare developmental and epileptic encephalopathy. Ganaxolone, a neuroactive steroid, reduces the frequency of major motor seizures in children with CDD. This analysis explored the effect of ganaxolone on non-seizure outcomes.  ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2024
• June 2024

Investigate impacts on maternal health and family quality of life in families with a child with the CDKL5 disorder ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2017
• January 2017

This study investigated the influence of factors at birth and in infancy on the likelihood of achieving major motor milestones in CDKL5 Deficiency Disorder (CDD). Data on 350 individuals with a pathogenic CDKL5 variant was sourced from the International CDKL5 Disorder Database. ...

• 1. Telethon Kids Institute
• Our research
• Reports and Findings
• 2022
• August 2022