For participation in this epidemiological study, a single-day visit at the study site is required. Participants will be recruited from Huntington Disease clinics, and they will be asked to answer questions regarding their demographics, including sex, age, race and ethnicity, and their medical and medication history. At the end of the visit, a blood sample will be drawn to allow testing with a sequencing assay that is specifically designed for phasing single nucleotide polymorphisms (SNPs) on the wild-type Huntington (wtHTT) and mutant Huntington (mHTT) alleles.
Study Type
OBSERVATIONAL
Enrollment
574
Frequencies of Selected Single Nucleotide Polymorphism (SNP) Alleles in Phase With the mHTT and wtHTT Alleles
Time frame: Day 1
Number of Participants With Selected SNPs According to Their Medical History
Time frame: Day 1
Number of Participants With Selected SNPs According to Their Medication History
Time frame: Day 1
Number of Participants With Selected SNPs According to Their Demographic Characteristics (Age, Sex, Ethnicity, and Race)
Time frame: Day 1
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