Development of an International Database for a Rare Genetic Disorder: The MECP2 Duplication Database (MDBase)

Area of Science:

• Neuroscience
• Genetics
• Clinical Research Methodology

Background:

• MECP2 duplication syndrome (MDS) is a rare X-linked neurodevelopmental disorder with limited natural history data.
• Understanding disease progression and identifying therapeutic endpoints for MDS is hindered by a lack of comprehensive clinical information.
• Existing research lacks systematic data collection from caregivers for MDS patients.

Purpose of the Study:

• To document the development, launch, and management of the international MECP2 Duplication Database (MDBase).
• To establish a systematic method for collecting critical clinical data from caregivers of individuals with MDS.
• To create a foundation for understanding MDS progression and facilitating clinical trial development.

Main Methods:

• Development of an extensive family questionnaire to gather detailed medical, developmental, and quality of life information.
• Establishment and management of the international MECP2 Duplication Database (MDBase) starting in 2020.
• Systematic data collation from caregivers of individuals diagnosed with MDS.

Main Results:

• The MDBase successfully collected clinical data from 154 individuals across 26 countries within its first two years.
• This represents the largest sample size of individuals with MDS documented to date.
• The methodology proved effective in establishing and managing a rare disease database.

Conclusions:

• The MDBase provides a valuable resource for understanding the natural history of MECP2 duplication syndrome.
• The successful implementation of the MDBase offers a model for developing similar databases for other rare neurodevelopmental disorders.
• This data collection effort is crucial for advancing therapeutic development and improving patient outcomes in MDS.