Exploratory Evaluation of Flortaucipir Injection in Healthy Volunteers and Cognitively Impaired Subjects

Inclusion Criteria

• Healthy volunteers had an Mini-Mental State Examination (MMSE) score of ≥ 29;
• MCI due to Alzheimer's disease (AD) consistent with National Institute on Aging (NIA)-Alzheimer's Association working group's on diagnostic guidelines for AD (Alzheimer's Dementia 7:270-9, 2011)
• Possible or probable AD: Met clinical criteria for possible or probable AD based on the NIA-Alzheimer's Association working group's on diagnostic guidelines for AD (Alzheimer's Dementia 7:263-9, 2011)

Exclusion Criteria

• Current clinically significant psychiatric disease.
• Evidence of structural abnormalities such as major stroke or mass on MRI that would have made a diagnosis of impairment due to AD unlikely or was likely to interfere with interpretation of a PET scan on MRI.
• Claustrophobic or otherwise unable to tolerate the imaging procedure.
• Current clinically significant cardiovascular disease or clinically significant abnormalities on screening electrocardiogram (including, but not limited to, corrected QT interval >450 msec).
• Current clinically significant infectious disease, endocrine or metabolic disease, pulmonary, renal or hepatic impairment, or cancer
• History of alcohol abuse or substance abuse or dependence
• Female subjects of childbearing potential who were not surgically sterile, not refraining from sexual activity or not using reliable methods of contraception.
• Required medications with a narrow therapeutic window
• Received a non-study related radiopharmaceutical imaging or treatment procedure within 7 days prior to imaging session
• Receiving any investigational medications or had participated in a trial with investigational medications within the last 30 days