Synonyms: ATS | Atypical LQT8
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version April 2026
Newly diagnosed with
Atypical Timothy syndrome?
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Advocacy Organizations
FamilieSCN2A Foundation
Our MISSION is to accelerate research, build community and advocate to improve the lives of those affected by SCN2A-related disorders around the world.
Heart of a Giant Foundation
The mission of the HGF is to achieve better health outcomes for heart diseases and related chronic health conditions in our communities and enhance the quality of life through health education, care support, and connection to community resources.
Helping Swans Co.
Promoting disability awareness and inclusion through education and support services. They highlight rare and undiagnosed diseases and provide initiatives in schools, hospitals, and other organizations to create a more inclusive world. The organization was founded by a disabled Latina mother of a rare child with autism, with a focus on diversity and underrepresented communities.
Hypertrophic Cardiomyopathy Association
Providing support, advocacy, and education to patients, families, the medical community, and the public about hypertrophic cardiomyopathy and all thick heart muscle disorders, while supporting research and fostering the development of treatments.
KIF1A.ORG
KIF1A.ORG is a global community dedicated to improving the lives of those affected by KIF1A Associated Neurological Disorder (KAND) and accelerating research to find a cure.
MAST Genes Research Foundation
Connecting families and fueling research into microtubule-associated serine/threonine kinase (MAST) genetic mutations to improve the quality of life and develop therapies to support affected patients and families.
RareDNA Foundation
Dedicated to improving outcomes for individuals and families affected by rare DNA heart mutations by advancing awareness, access and action. We increase awareness among medical professionals and the public, provide education and resources on diagnosis and treatment, support scientific research, and advocate for faster diagnostic pathways, giving families the knowledge and care they need.
SCN2A Foundation
The SCN2A Foundation is a global initiative dedicated towards accelerating research and treatment for SCN2A. We plan to achieve this by building collaborative networks among the global research community, organizing resources, and strategically investing in highly focused research directed towards therapeutic development.
Sudden Arrhythmia Death Syndromes (SADS) Foundation
The SADS (Sudden Arrhythmia Death Syndromes) Foundation mission is to save the lives and support the families of children and adults who are genetically predisposed to sudden death due to heart rhythm abnormalities. Learn More
TRND Network
The TRND Network is dedicated to supporting patients and their loved ones by providing advocacy and support, advancing research, and creating collaboration between researchers and patients.
The SHANK2 Foundation
To improve the quality of life for individuals affected by SHANK2 disorders
Timothy Syndrome Alliance
Our mission is to improve the diagnosis, treatment and care of individuals worldwide with CACNA1C related disorders including Timothy Syndrome and LongQT8, and to support the families and carers of those diagnosed.
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Clinical Trials
For a list of clinical trials in this disease area, please click here.