November 22, 2022


Nearly 80% of LADDER participants have had a seizure.

Make sure your data is included and complete the available surveys on your LADDER dashboard. This survey aims to understand more about seizures for those with Dup15q and Angelman Syndrome.]


If you are the parent or caregiver of an individual with dup15q syndrome, you can enroll in LADDER by visiting

LADDER shares de-identified information (which means it cannot be traced back to you or your family) from the LADDER database with approved researchers. When research projects using LADDER data result in publications, we share summaries of the research that are written for families to understand.