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Observational Study of Cognitive Outcomes for Subjects Who Have Had Prior PET Amyloid Imaging With Florpiramine F 18 (18F-AV-45)
This study is currently recruiting participants.
Verified by Avid Radiopharmaceuticals, March 2009
First Received: March 5, 2009   Last Updated: March 17, 2009   History of Changes
Sponsor: Avid Radiopharmaceuticals
Information provided by: Avid Radiopharmaceuticals
ClinicalTrials.gov Identifier: NCT00857506
  Purpose

The primary objective of this protocol is to determine if brain amyloid imaged on florpiramine F 18 (18F-AV-45) PET scans is predictive of progressive cognitive impairment during the subsequent 18 months for groups of: normal controls, mild cognitive impairment and Alzheimer's disease.

Hypothesis 1: The probability a subject will experience progressive cognitive impairment within 18 months of imaging will be greater in subjects whose 18F-AV-45 PET scan was rated amyloid positive compared to subjects whose PET scan was rated amyloid negative.

The secondary objective is to determine the stability, over 18 months of a clinical diagnosis, of AD in patients with an amyloid positive 18F-AV-45 PET.

Hypothesis 2: The diagnosis of AD will remain unchanged in patients whose PET scan were rated as amyloid positive.


Condition Intervention Phase
Alzheimer's Disease
Mild Cognitive Impairment
Other: Cognitive and psychometric evaluations
Phase II

Study Type: Observational
Study Design: Cohort, Prospective
Official Title: Observational Study of Long-Term (18 Month) Cognitive Outcomes in Healthy Volunteers, Patients With Mild Cognitive Impairment (MCI) and Patients With Alzheimer's Disease (AD) Who Have Previously Had PET Imaging With Florpiramine F (18F-AV-45) Injection.

Resource links provided by NLM:


Further study details as provided by Avid Radiopharmaceuticals:

Primary Outcome Measures:
  • Cognitive/functional status [ Time Frame: 6, 12 and 18 months ] [ Designated as safety issue: No ]
  • Primary analysis will test if the probability of meeting NINCDS-ADRDA criteria for a diagnosis of Alzheimer's disease within 18 months of PET scan is greater in subjects with scans rated as amyloid positive than subjects with scans rated amyloid negative [ Time Frame: 6, 12 and 18 months ] [ Designated as safety issue: No ]

Biospecimen Retention:   None Retained

Biospecimen Description:

Estimated Enrollment: 100
Study Start Date: January 2009
Estimated Study Completion Date: July 2010
Estimated Primary Completion Date: July 2010 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Cognitive performance
Cognitive performance of all subjects having received 18F-AV-45 PET scan in prior trial
Other: Cognitive and psychometric evaluations
CDR, DSRS, MMSE, Alzheimer's Disease Assessment Scale (ADAS), Wechsler Logical Memory I & II, story A, Digit-Symbol Substitution, Category Verbal Fluency, Geriatric Depression Scale (GDS) and the Alzheimer's Disease Clinical Studies Consortium Activities of Daily Living (ADCS ADL)

Detailed Description:

Study AV-45-A11 is designed to determine if brain amyloid aggregation imaged on 18F-AV-45 PET scans is predictive of progression of cognitive impairment during the subsequent 18 months. Approximately 180 subjects enrolled in a prior clinical study (AV-45-A05) will be offered an opportunity to be studied under this protocol. The initial visit will occur as soon as possible following the AV-45-A05 imaging day. Subjects who qualify for the study and their caregiver/partners will be contacted approximately 6, 12 and 18 months after PET imaging in study AV-45-A05, and will undergo a standardized functional and psychometric evaluation.

NOTE: This study is a clinical follow-up of subjects previously enrolled in trial 18F-AV-45-A05. No new patients are being enrolled in this trial.

  Eligibility

Ages Eligible for Study:   50 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Subjects with normal cognitive function

Subjects with mild cognitive impairment

Subjects with Alzheimer's disease

Criteria

Inclusion Criteria:

  • All subjects who enrolled in study AV-45-A05, received 18F-AV-45, and completed a PET scan will be eligible to enroll in this trial.

Exclusion Criteria:

-

  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00857506

Contacts
Contact: Michael J Pontecorvo, Ph.D 215-966-6221 pontecorvo@avidrp.com
Contact: Alan P Carpenter, Ph.D. 215-966-7173 carpenter@avidrp.com

Locations
United States, Arizona
Scottsdale Medical Imaging Recruiting
Scottsdale, Arizona, United States, 85258
Principal Investigator: Ronald L Korn, MD, PhD            
Northwest NeuroSpecialists Recruiting
Tucson, Arizona, United States, 85741
Principal Investigator: Jeannette K Wendt, MD            
United States, California
ATP Clinical Research Recruiting
Costa Mesa, California, United States, 92626
Principal Investigator: Gustavo Alva, MD            
United States, Florida
Meridien Research Recruiting
Brooksville, Florida, United States, 34613
Principal Investigator: Mildred V Farmer, MD            
Premiere Research Institute Recruiting
West Palm Beach, Florida, United States, 33407
Principal Investigator: Carl H Sadowsky, MD            
MD Clinical Recruiting
Hallandale Beach, Florida, United States, 33009
Principal Investigator: Beth E Safirstein, MD            
United States, New York
Neurological Associates of Albany, P.C. Recruiting
Albany, New York, United States, 12208
Contact: Nicole Barcomb     518-449-2662     neurorfh@aol.com    
Principal Investigator: Richard F Holub, M.D.            
United States, North Carolina
Duke University Health System Recruiting
Durham, North Carolina, United States, 27710
Principal Investigator: P. Murali Doraiswamy, MD            
Sponsors and Collaborators
Avid Radiopharmaceuticals
  More Information

No publications provided

Responsible Party: Avid Radiopharmaceuticals, Inc. ( Michael J. Pontecorvo, Ph.D., Vice President, Clinical Development )
Study ID Numbers: 18F-AV-45-A11
Study First Received: March 5, 2009
Last Updated: March 17, 2009
ClinicalTrials.gov Identifier: NCT00857506     History of Changes
Health Authority: United States: Food and Drug Administration

Keywords provided by Avid Radiopharmaceuticals:
Cognitive outcome
18F-AV-45 PET scan
Amyloid PET scan
Florpiramine amyloid PET scan
Normal cognition
Change in cognitive status in relation to brain amyloid on PET

Additional relevant MeSH terms:
Delirium, Dementia, Amnestic, Cognitive Disorders
Mental Disorders
Nervous System Diseases
Alzheimer Disease
Central Nervous System Diseases
Neurodegenerative Diseases
Tauopathies
Brain Diseases
Dementia
Cognition Disorders

ClinicalTrials.gov processed this record on February 09, 2010