Phoenix Nest
This study is planned to document, through retrospective and prospective data collection, syndrome progression in children and young adults with MPS IIIC.
This is a multi-center, natural history study of subjects with Sanfilippo syndrome type C or MPS IIIC. This study will combine a retrospective review of medical records and an ongoing collection of clinical data on an observational basis. Real-world data will be collected at home using a recording device. Participants will be asked to attend clinic visits in person on a yearly basis. In clinic visits will include neurocognitive, developmental, behavioral, biochemical, imaging measures as well as retrospective medical record analysis. At 6-month intervals between clinic visits, participants w…
Inclusion Criteria: Confirmed diagnosis of Sanfilippo syndrome type C disease by all of the following: * Deficiency in heparan-alpha-glucosaminide N-acetyltransferase enzyme activity * Has presented with signs/symptoms consistent with Sanfilippo syndrome type C, or, for individuals who have not presented with signs/symptoms of disease (eg, siblings of known patients), the determination of eligibility will be at the discretion of the Sponsor in conjunction with the site Investigator * Genomic DNA analysis demonstrating homozygous or compound heterozygous, pathogenic and/or potentially pathoge…
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