Gad A. Marshall, MD

Gad Marshall is board certified in Neurology. He is currently the Medical Director of Clinical Trials at the Center for Alzheimer Research and Treatment at Brigham and Women’s Hospital; Associate Neurologist at Brigham and Women’s Hospital; Assistant in Neurology at Massachusetts General Hospital; and Associate Professor of Neurology at Harvard Medical School.

Dr. Marshall has been site principal investigator for multiple clinical trials of amyloid-modifying drugs in Alzheimer’s disease and is currently the site principal investigator for the Alzheimer’s Disease Neuroimaging Initiative (ADNI) 3, DoD-ADNI, and the Anti-Amyloid Treatment in Asymptomatic Alzheimer’s Disease (A4) trial.

His research has focused on clinical correlates of instrumental activities of daily living and neuropsychiatric symptoms with multiple imaging markers and cerebrospinal fluid biomarkers across the early Alzheimer’s disease spectrum, as well as developing novel, sensitive, and ecologically-valid assessments for early functional changes in Alzheimer’s disease.