MEF2C

Phase 0 non-interventional longitudinal study of children and adults with Developmental and Epileptic Encephalopathy (DEE) due to a genetic cause. There are six arms of the study. Arms 1, 2, and 3 are devoted to one example DEE, MEF2C Haploinsufficiency Syndrome (MCHS). Arms 4, 5, and 6 are open to all DEE. Arm 1 (in-person) will enroll children 0 to 15, who will make in-person visits to Weill Cornell Medicine four times over two years. Arm 2 (virtual) will enroll people of all ages and older who will make virtual visits over Weill Cornell Zoom to Weill Cornell Medicine over two years (2 if 16 and older; 4 if 0 to 15). Arm 3 (registry) will enroll people of all ages in an online-only survey. Arms 4 - 6 mirror this structure but they are open to all children with DEE. Arm 4 (in-person) will enroll children of any age, who will make in-person visits every 6 months for 10 years. Arm 5 (virtual) will enroll children of any age for virtual visits, twice a year of 0 to 15, once a year if 16 or older. Arm 6 (registry) will enroll people of all ages in an online only survey.

Simons Searchlight is an observational, online, international research program for families with rare genetic variants that cause neurodevelopmental disorders and may be associated with autism. Simons Searchlight collects medical, behavioral, learning, and developmental information from people who have these rare genetic changes. The goal of this study is to improve the clinical care and treatment for these people. Simons Searchlight partners with families to collect data and distribute it to qualified researchers.