Department of Neurology

Clinical Studies


Enroll-HD study is a new international study that involves North America, Europe, South America and parts of Asia. Data from those of you who have already contributed to COHORT (with your permission) will be added to Enroll-HD.

This study is an active collaboration of HD patients, individuals born at risk for HD (regardless of whether they have been tested genetically), and their families. It requires about a half day visit once a year (transportation reimbursement available). This study is vital to the more rapid development of treatments for HD therapeutics and completion of clinical trials. Visit for more information and updates.


University of Washington Department of Neurology
Dr. Ali Samii, Primary Investigator

Contact Information:
(206) 543-3647