Eric A. Macklin, PhD, is a biostatistician at Massachusetts General Hospital and Assistant Professor of Neurology at Harvard Medical School. Dr. Macklin’s research investigates neurodegenerative and neurodevelopmental diseases with a focus on clinical trial design for treatments and prevention of Parkinson disease (PD) and amyotrophic lateral sclerosis. He served as the lead statistician for the SURE-PD and SURE-PD3 trials of serum urate elevation, the AT-HOME extension study, the SYNAPSE trial of PD dementia, and the ENLITE-PD trial of light therapy for sleep dysfunction and served or is serving on steering committees for trials of exercise for both manifest PD and individuals at-risk for PD and of immunological and small molecule interventions targeting alpha-synuclein. He has served since 2012 as the Biostatistics Director of the Executive Committee for the Parkinson Study Group.