Evaluation of [123I] MNI-308 and SPECT as a Marker of Beta-amyloid Protein Deposition in AD Subjects Compared to HC

NCT ID: NCT00544453

Last Updated: 2009-08-21

Basic Information

• Recruitment Status: TERMINATED
• Clinical Phase: PHASE1
• Total Enrollment: 2 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2007-10-31
• Study Completion Date: 2008-07-31

Brief Summary

The main objectives of this proposal are as follows:

To assess the dynamic uptake and washout of 123-I MNI-308, a potential imaging biomarker for β-amyloid burden in brain, using single photon emission computed tomography (SPECT) in similarly aged Alzheimer's (AD) subjects and healthy controls

To perform blood metabolite characterization of 123-I MNI-308 in healthy and AD subjects to determine the metabolic fate and nature of metabolites in assessment of 123-I MNI-308 as a single photon computed tomography (SPECT) brain imaging agent

Evaluate the test/retest reproducibility of 123-I MNI-308 and SPECT in AD subjects and healthy control

Detailed Description

General Design and Methods. The underlying goal of this study is to assess 123-I MNI-308 SPECT imaging as a tool to detect ß-amyloid deposition in the brain of AD research participants and age- and gender-matched healthy subjects. All study procedures will be conducted at the Institute for Neurodegenerative Disorders (IND) and Molecular NeuroImaging (MNI) in New Haven, CT. Approximately 10 patients with Alzheimers disease (AD) and 6 healthy controls (within +/- 2 years) will be recruited to participate in this study. Healthy controls will be examined to ensure that there is no evidence of neurodegenerative changes including cognitive decline.

An interval of at least 14 days will lapse between dosing in the first four AD subjects. This is intended to provide a longer period for AE assessments. Once complete, absent any serious adverse events in these initial AD subjects, dosing may commence with the remainder of the subjects, including healthy controls.

Informed consent will be obtained for all subjects. All subjects will undergo a screening evaluation including baseline clinical laboratory testing, a baseline physical and neurological evaluation and baseline cognitive evaluations. Subjects will be asked to undergo a bolus injection of 123-I MNI-308. Subjects will undergo serial SPECT imaging scans and serial venous plasma sampling for measurement of 123-I MNI-308 in plasma (both protein bound and free) over a period of up to 8 hours. The imaging analyses will be performed by an image-processing specialist who will remain masked to the procedures employed with each imaging acquisition. The primary imaging outcome measure will be the brain regional distribution volumes expressed as a brain tissue to plasma ratio of the radioligand, 123-I MNI-308. Time to the peak uptake and amplitude of the peak uptake will be evaluated for all brain regions and the results for the AD patients and controls will be compared.

Conditions

Alzheimer Disease

Study Design

• Allocation Method: NON_RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: SCREENING
• Blinding Strategy: NONE

Interventions

[123I] MNI-308

Injection of \[123I\] MNI-308 and SPECT scanning

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

• Alzheimer's disease will be recruited for this study. The following criteria will be met for inclusion of AD subjects in this study:

• 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 MNI-308 injection.

Healthy Control Subject Selection. Healthy control subjects who have no neurological disease will be recruited for this study. The following criteria will be met for inclusion of healthy control subjects in this study:

• 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 MNI-308 injection.

Exclusion Criteria

• Alzheimer's subjects will be excluded from participation for the following reasons:

• 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

Healthy control subjects will be excluded from participation for the following reasons:

• 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

• Minimum Eligible Age: 50 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Molecular NeuroImaging

OTHER

Sponsor Role: lead

Responsible Party

Institute for Neurodegenative Disorders

Principal Investigators

Danna L Jennings, MD

Role: PRINCIPAL_INVESTIGATOR

Institute for Neurodegenerative Disorders

Locations

Institute for Neurodegenerative Disorders

New Haven, Connecticut, United States

Countries

United States

Related Links

http://www.indd.org

Related Info

Other Identifiers

MNI-308-01

Identifier Type: -

Identifier Source: org_study_id