Muri Bei Bern

Researchers are conducting Enroll-HD, a large, long-term observational study involving individuals affected by Huntington's Disease (HD), those at risk, and control participants. This study combines data from previous registries in Europe, North America, Australasia, and now includes Latin America. It aims to build a comprehensive database of clinical information and biological samples to support research on disease progression, prognosis, and clinical characteristics, as well as to establish clear endpoints for future interventional studies. Enroll-HD collects detailed clinical and genetic information along with blood samples from participants categorized as carriers of the HD gene mutation, controls without the mutation, and family or community controls. The study enrolls participants from over 150 sites in 23 countries and conducts annual assessments without a set end date. Participant groups include those with manifest HD symptoms, pre-manifest carriers, relatives with unknown genotype, and genotype-negative relatives. Participants undergo yearly evaluations including motor, functional, behavioral, and cognitive assessments using standardized scales such as the Unified Huntington's Disease Rating Scale and the Problem Behaviors Assessment-Short. Researchers track changes over an average of one year or longer through this ongoing registry. Data collected supports multiple research efforts and is accessible to qualified researchers worldwide.