Long Term Follow-up on Menkes Disease Patients

"Menkes disease is a form of inherited copper deficiency associated with neurodevelopmental delays and neurological problems. Copper Histidinate is being evaluated for efficacy and safety in patients with Menkes disease. The purpose of this protocol is to collect long term follow-up data.~During the study, patients and/or parent/legal guardian will be contacted by the investigator by either telephone or an in-person visit to assess long term follow-up."