Synonyms: Heparan sulfamidase deficiency | MPS3A | MPSIIIA | Mucopolysaccharidosis type 3A | Mucopolysaccharidosis type IIIA
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 February 2026
Newly diagnosed with
Sanfilippo syndrome type A?
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Advocacy Organizations
Aislinn’s Wish Foundation
Aislinn’s Wish Foundation is a non-profit organization created to improve the lives of children diagnosed with the rare, genetic, terminal disorder known as Sanfilippo Syndrome. The Foundation strives to promote awareness and contribute to scientific research, with the goal of finding a cure for Sanfilippo Syndrome.
Canadian Society for Mucopolysaccharide & Related Diseases Inc.
The Canadian MPS Society is a charitable organization dedicated to supporting individuals and families affected by mucopolysaccharidoses (MPS) and related lysosomal storage disorders. We are helping families live their best lives.
Child And Youth Care
To ensure every rare disease patient has access to quality and affordable care, treatment services in order to reduce morbidity and mortality.
Childhood Dementia Initiative
Our vision is for sustainable global health solutions for childhood dementia. This will be achieved through the following outcomes: - Treatments and cures available for children with dementia - Access to equitable and quality care for children with dementia and their families - Childhood dementia is a global health policy priority.
Cure Sanfilippo Foundation
To advocate for and fund research directed towards treatment options for patients diagnosed with Sanfilippo Syndrome.
Emory Lysosomal Storage Disease Center
The Emory Lysosomal and Peroxisomal Storage Disease Center is devoted to remaining on the cutting edge of research and treatment providing comprehensive and compassionate care for all of our patients affected by lysosomal storage diseases.
Genetic Epilepsy Team Australia
Collaboration of research and care
Genetic Support Network of Victoria
The Genetic Support Network of Victoria is an organisation that supports people living with genetic, undiagnosed and rare conditions and those who support them including community and families, patient support organisations, health professionals and industry. Our vision is our community flourishing and living their best lives.
Louisiana Metabolic Disorders Coalition
We support, educate, and advocate for patients & families affected by metabolic disorders.
Lysosomal Storage Disorders Society – Pakistan
LSD Society Pakistan is a registered Non-Profit organization set up by a group of parents dedicated and committed to improve the lives of Lysosomal Storage Disease patients in Pakistan by advocating for patients’ rights and creating awareness in general public. The objective of LSD Society is to advocate with the government and other stakeholders to establish a sustainable healthcare system
Lysosomal Storage Disorders Support Society
LSDSS endeavors to transform the life of children affected by rare Lysosomal Storage Disorders. Our mission is to increase awareness about the prevention of such disorders in future offspring as well as counsel the affected patients and families on how to cope with existing conditions, ensuring no patient or family living with an LSD ever feels alone.
MPS Society
The MPS Society supports families through difficult times and helps people living with rare diseases to live their lives to the full. Founded in 1982 and led by people directly affected by these diseases, we are the only registered charity in the UK which focusses on MPS (Mucopolysaccharide), Fabry and related conditions, a group of 27 rare, life-limiting genetic diseases.
Mississippi Metabolics Foundation
Our mission at Mississippi Metabolics Foundation (MMF) is to advocate, educate, and support families in MS affected by genetic metabolic disorders/inborn errors of metabolism (IEM's). MMF promotes initiatives and further advancements in legislation, education, research, clinical trials, studies, therapies, targeted treatments, and eventual cures for IEM’s and all rare diseases.
Orphan Disease Center
The Orphan Disease Center will develop transformative therapies using platform technologies that can be deployed across multiple rare diseases. We will emphasize disorders with substantial unmet need independent of their incidence and will strive to assure access to patients of all populations.
Pompe Alliance
To provide supportive services, education and information to patients, caregivers, medical professionals and community stakeholders.
Project Alive
Project Alive exists to find and fund a cure for Hunter Syndrome (also known as Mucopolysaccharidosis or MPS II) through research and advocacy. Project Alive is a powerful voice for children and adults with Hunter Syndrome, bringing together families and advocates with researchers, industry, and regulators. The organization funds promising curative research, assists researchers and industry with designing research studies for our community, and advocates for the most effective and efficient system of clinical research, evaluation, and approval. Through its innovative campaigns and grassroots efforts, Project Alive has made significant advances in public awareness about Hunter Syndrome and its symptoms, the need for early diagnosis, and available treatments and clinical trials.
Rare Epilepsy Network (REN)
Improving outcomes of people with rare epilepsies through an innovative collaborative infrastructure that drives urgent, patient-centered research, educaiton and advocacy.
Wave of Support, Inc
Empowering those affected by bleeding disorders and other rare disease through advocacy, resources, education, and support
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Clinical Trials
For a list of clinical trials in this disease area, please click here.