Systemic Synuclein Sampling Study (S4)

The Systemic Synuclein Sampling Study (S4) is an observational clinical study to better understand the progression of Parkinson’s disease (PD) by identifying the best biofluids and tissues for measuring the protein alpha-synuclein outside of the brain as a potential biomarker in people with PD.

S4 will enroll individuals with Parkinson’s disease and control volunteers across six clinical sites in the United States and Canada.

Canadian site: Toronto Western Hospital

Site Study Manager: Dr. Naomi Visanji

Site Lead: Dr. Connie Marras