After being informed about the study and potential risks, all patients giving written informed consent will be asked to complete a small questionnaire regarding family history and have a blood sample withdrawn. Blood samples, questionnaires, clinical information and signed consent is send to Department of Medical Genetics, Telemark Hospital Trust were the genetic analysis is performed successively throughout the recruitment period. Patients can choose to have their genetic results returned in a diagnostic setting.
The purpose of this study is to explore the genetic causes relevant for ALS development in Norway.