PET Imaging of Cyclooxygenases in Neurodegenerative Brain Disease
Trial Parameters
Brief Summary
Background: About 5 million adults in the U.S. have Alzheimer s disease or another adult-onset neurodegenerative disorder. Many studies have found that inflammation in the brain contributes to these diseases. Researchers want to find a better way to measure this inflammation. Objective: To learn whether COX-1 and/or COX-2 is elevated in the brains of individuals with neurodegenerative brain disease compared to healthy volunteers. Eligibility: Adults age 18 years and older in good general health who have an adult-onset neurodegenerative dementia, such as AD, FTD, corticobasal syndrome, Huntington s disease, or MCI, ALS and healthy adult volunteers enrolled in protocols 01-M-0254 or 17-M-0181. Design: Participants will be screened with medical history, physical exam with vital signs, and lab tests. They will have a neuropsychological testing. Their heart function will be measured. Participants will have a magnetic resonance imaging (MRI) scan. The MRI scanner is a metal tube surrounded by a strong magnetic field. Participants will lie on a table that slides in and out of the tube. The machine makes noise. Participants will get earplugs. Participants will have 2 PET scans. They will be injected with the study drugs through an intravenous catheter placed in an arm vein. The PET scanner is shaped like a doughnut. Participants will lie on a bed that slides in and out of the scanner. A plastic mask will be molded to their head to keep them from moving. A thin plastic tube will be put into an artery at the wrist or elbow crease area. This will be used to draw blood during the scan. Participants will have 2-5 study visits. Participation lasts 1 week to 4 months, depending on scheduling.
Eligibility Criteria
* INCLUSION CRITERIA: Patients: In order to be eligible to participate in this study, patients must meet all of the following criteria: 1. Aged 18 or older. 2. Be able (or have their Legally Authorized Representative (LAR) be able) to understand the study and be willing to sign a written informed consent document. 3. Have been diagnosed by a neurologist or psychiatrist with MCI, ALS, PD, or an adult onset neurodegenerative dementia, such as AD (including amyloid negative subjects), FTD, corticobasal syndrome, or Huntington s disease. 4. Be in good general health as evidenced by medical history and physical examination. 5. Have their radial artery pulse checked for the presence of adequate ulnar collateral flow and the absence of any metal or foreign objects in both wrists. 6. Agree to adhere to the lifestyle considerations. Healthy volunteers: In order to be eligible to participate in this study, healthy volunteer subjects must meet all of the following criteria: 1. Aged 18 or older. 2