Evaluation of [123I] AV151 and SPECT in Subjects w/ AD in Comparison to Healthy Subjects

• Status: Terminated
• Trial end date: 2008-06-01
• Target enrollment: 0
• Participant gender: All

Summary

Purpose:

The main objectives of this proposal are as follows:

To assess the dynamic uptake and washout of 123-I AV151, a potential imaging biomarker for β-amyloid burden in brain, using single photon emission computed tomography (SPECT) in similarly aged healthy controls and Alzheimer's (AD) subjects

To perform blood metabolite characterization of 123-I AV151 in healthy and AD subjects to determine the metabolic fate and nature of metabolites in assessment of 123-I AV151 as a single photon computed tomography (SPECT) brain imaging agent

Evaluate the test/retest reproducibility of 123-I AV151 and SPECT in AD subjects and healthy controls

• Phase: Phase 1
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Institute for Neurodegenerative Disorders

Criteria

INCLUSION CRITERIA: ALZHEIMER DISEASE

• The participant is 50 years or older.

• Written informed consent is obtained.

• Participants have a clinical diagnosis of Alzheimer's disease based on National Institute of Neurological and Communicative Disorders and Stroke/Alzheimer's Disease and Related Disorders Association (NINCDS/ADRDA) criteria.

• Mini-Mental Status Exam score < 25.

• Modified Hachinski Ischemia Scale score of ≤ 4.

• Geriatric Depression Scales (GDS) ≤ 10.

• For females, non-child bearing potential or negative urine or blood pregnancy test on day of 123-I AV151 injection.

EXCLUSION CRITERIA: ALZHEIMER DISEASE

• The subject has signs or symptoms of another neurodegenerative disease including Parkinson's disease, diffuse Lewy body dementia, or history of significant cerebrovascular disease.

• The subject has a clinically significant abnormal laboratory value and/or clinically significant unstable medical or psychiatric illness

• The subject has any disorder that may interfere with drug absorption distribution, metabolism, or excretion (including gastrointestinal surgery).

• The subject has evidence of clinically significant gastrointestinal, cardiovascular, hepatic, renal, hematological, neoplastic, endocrine, neurological, immunodeficiency, pulmonary, or other disorder or disease.

• Pregnancy

Concomitant therapy Patients may remain on a stable dose of anticholinesterase medication during the study. Use of donepezil (Aricept®), rivastigmine (Exelon®), galantamine (Razadyne®), tacrine (Cognex®), and memantine (Namenda®) are permitted during the study. Doses of these compounds must be stable for 2 months prior to the study. At each visit after the screening visit, the investigator will ask the patient whether any medications including OTC medications, were taken since the previous visit.

Use of antipsychotics for agitation and benzodiazepines for insomnia or anxiety is permitted. However, the use of these agents is not permitted within the 8 hours prior to administration of cognitive testing.

INCLUSION CRITERIA: HEALTHY VOLUNTEERS

• The participant is 50 years or older.

• Written informed consent is obtained.

• Negative history of neurological or psychiatric illness based on evaluation by a research physician.

• Mini-Mental Status Exam score ≥28.

• For females, non-child bearing potential or negative urine or blood pregnancy test on day of 123-I AV151 injection.

EXCLUSION CRITERIA: HEALTHY VOLUNEERS

• The subject has a clinically significant abnormal laboratory value and/or clinically significant unstable medical or psychiatric illness.

• The subject has any disorder that may interfere with drug absorption distribution, metabolism, or excretion (including gastrointestinal surgery).

• The subject has evidence of clinically significant gastrointestinal, cardiovascular, hepatic, renal, hematological, neoplastic, endocrine, neurological, immunodeficiency, pulmonary, or other disorder or disease.

• Pregnancy