AzTrials
AzTrials

Memory DisordersNCT00355498

Amyloid Plaque and Tangle Imaging in Aging and Dementia

An observational study of Memory Disorders and Alzheimer's Disease, run by University of California, Los Angeles at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

Amyloid senile plaques (SPs) and neurofibrillary tangles (NFTs) are neuropathological hallmarks of Alzheimer's disease (AD) that also accumulate in key brain regions in association with normal aging. Read more about this study

Who is it for?
Ages 30 years and olderHealthy volunteers can take part
Conditions the study is for
Memory Disorders, Alzheimer's Disease
How many people
170 participants
Where
1 siteUnited States
Study dates
Sep 2005to May 2010
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 30 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The study population is selected from UCLA primary care clinics, UCLA memory clinic, residents from the California counties of Orange and Los Angeles who answer ads placed in newspapers in these areas.

Who may be able to join

  • Agreement to participate in a clinical and brain imaging study
  • Age 30 years or older
  • No significant cerebrovascular disease - modified Ischemic Score of ≤ 4
  • For volunteers with MCI or dementia, there must be a family member or potential caregiver available
  • Adequate visual and auditory acuity to allow neuropsychological testing
  • Screening laboratory tests and ECG without significant abnormalities that might interfere with the study.

Who cannot join

  • Evidence of neurologic or other physical illness that could produce cognitive deterioration; in addition to a physical and neurological examination, volunteers will be screened for Parkinson's disease
  • History of myocardial infarction within the previous year or unstable cardiac disease
  • Uncontrolled hypertension (systolic BP>170 or diastolic BP>100), history of significant liver disease, clinically significant pulmonary disease, diabetes, or cancer
  • Major psychiatric disorders, such as bipolar disorder or schizophrenia
  • Because medications can affect cognitive functioning, volunteers needing medicines that could influence psychometric test results will be excluded; use of any of the following drugs will also exclude volunteers: centrally active beta-blockers, narcotics, clonidine, anti-Parkinsonian medications, benzodiazepines, systemic corticosteroids, and medications with significant cholinergic or anticholinergic effects, anti-convulsants, or warfarin
  • Current diagnosis or history of alcoholism or drug dependence
Show all 9Show fewer
  • Evidence of untreated depression as determined by a HAM-D (Hamilton, 1960) score of ≥ 12 (17-item version) or untreated anxiety by a score of ≥ 8 on the Hamilton Anxiety Scale (HAM-A; Hamilton, 1959)
  • Use of any investigational drugs within the previous month or longer, depending on drug half-life
  • Contraindication for MRI scan (e.g., metal in body, claustrophobia)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Jane & Terry Semel Institute for Neuroscience & Human Behavior

    Los Angeles, California, 90024

Other trials in United States

About this study

Amyloid senile plaques (SPs) and neurofibrillary tangles (NFTs) are neuropathological hallmarks of Alzheimer's disease (AD) that also accumulate in key brain regions in association with normal aging. This project will expand an established program in early detection and prevention of AD designed (1) to identify presymptomatic persons most likely to benefit from early intervention and (2) to provide an objective, noninvasive means to monitor therapeutic trials.

Read the detailed description

A total of 165 volunteers will be recruited for this 2-year study. Participants will receive a baseline clinical and imaging evaluation and one follow-up evaluation two years later. These evaluations will include clinical and neuropsychological assessments, structural MRI and/or PET scans. Additional scans and scanning procedures will be performed on a subset of participants and participant visits, including serotonin density levels.

Keywords
functional magnetic resonance imaging, positron emission tomography, beta-amyloid, tau
Medical subject headings
Memory Disorders, Alzheimer Disease, Plaque, Amyloid, Pick Disease of the Brain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00355498
Study groupRoleWhat they receive
1Controls
2Mild Cognitive Impairment
3Alzheimer's disease
4FTD

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Jul 2006 (estimated)
  2. Study startSep 2005
  3. Primary completionMay 2010
  4. Study completionMay 2010

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
170 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00355498
Sponsor's protocol ID
IA0093
Other IDs
P01AG025831-01, P01-AG024831-01
Status last verified
May 2020
First submitted
20 Jul 2006
Last updated
6 May 2020
Results posted
No
Data monitoring committee
Yes

Publications

  • Ercoli L, Siddarth P, Huang SC, Miller K, Bookheimer SY, Wright BC, Phelps ME, Small G. Perceived loss of memory ability and cerebral metabolic decline in persons with the apolipoprotein E-IV genetic risk for Alzheimer disease. Arch Gen Psychiatry. 2006 Apr;63(4):442-8. doi: 10.1001/archpsyc.63.4.442.

    PubMed 16585474
  • Kepe V, Barrio JR, Huang SC, Ercoli L, Siddarth P, Shoghi-Jadid K, Cole GM, Satyamurthy N, Cummings JL, Small GW, Phelps ME. Serotonin 1A receptors in the living brain of Alzheimer's disease patients. Proc Natl Acad Sci U S A. 2006 Jan 17;103(3):702-7. doi: 10.1073/pnas.0510237103. Epub 2006 Jan 9.

    PubMed 16407119
  • Small GW, Silverman DH, Siddarth P, Ercoli LM, Miller KJ, Lavretsky H, Wright BC, Bookheimer SY, Barrio JR, Phelps ME. Effects of a 14-day healthy longevity lifestyle program on cognition and brain function. Am J Geriatr Psychiatry. 2006 Jun;14(6):538-45. doi: 10.1097/01.JGP.0000219279.72210.ca.

    PubMed 16731723
  • Merrill DA, Siddarth P, Raji CA, Emerson ND, Rueda F, Ercoli LM, Miller KJ, Lavretsky H, Harris LM, Burggren AC, Bookheimer SY, Barrio JR, Small GW. Modifiable Risk Factors and Brain Positron Emission Tomography Measures of Amyloid and Tau in Nondemented Adults with Memory Complaints. Am J Geriatr Psychiatry. 2016 Sep;24(9):729-37. doi: 10.1016/j.jagp.2016.05.007. Epub 2016 May 13.

    PubMed 27421618

Questions about this trial

What is this clinical trial studying?

An observational study of Memory Disorders and Alzheimer's Disease, run by University of California, Los Angeles at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 6 May 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00355498, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 6 May 2020.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in