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Alzheimer's DiseasePhase 1/2MAINNCT00581867

Memory and Insulin in Early Alzheimer's Disease

A Phase 1/2 study testing Insulin Aspart in people with Alzheimer's Disease, run by Jeff Burns, MD 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
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Trial summary

To determine which parts of the brain are involved in insulin-related memory improvement in early Alzheimer's disease and cognitively normal older adults. Read more about this study

Who is it for?
Ages 60 years and olderHealthy volunteers can take part
Conditions the study is for
Alzheimer's Disease
What is being tested?
Insulin Aspart
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
31 participants
Where
1 siteUnited States
Study dates
Oct 2007to May 2012
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Patients with Early Alzheimer's disease

Who cannot join

  • Patients with Late Alzheimer's disease

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Kansas Medical Center, Hoglund Brain Imaging Center

    Kansas City, Kansas, 66160

Other trials in United States

About this study

Official title: Intranasal Insulin and Memory in Early Alzheimer's Disease

To determine which parts of the brain are involved in insulin-related memory improvement in early Alzheimer's disease and cognitively normal older adults.

Read the detailed description

Functional MRI study to characterize the neuroanatomic correlates of acute exogenous insulin-related improvements in cognitive performance in early Alzheimer's disease and cognitively normal older adults. The role of the apoE-e4 allele in modulating brain insulin responses is also addressed.

Being tested
Insulin Aspart, Placebo
Medical subject headings
Alzheimer Disease

What participants receive

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

  • Insulin AspartDrug

    Also called intranasal insulin

    40IU insulin aspart applied intranasally

  • PlaceboDrug

    Also called saline

    Placebo

Study groups in NCT00581867
Study groupRoleWhat they receive
Intranasal Insulin AspartExperimentalParticipants were administered intranasal insulin aspart (40 IU) in a double-blinded fashion approximately 30 minutes prior to functional MRI scanning. After a washout period of 48 hours, participants completed the other arm. The order of saline vs. insulin was counterbalanced.
Receives: Drug: Insulin Aspart
Intranasal Saline (placebo)Active comparatorParticipants were administered intranasal saline (placebo) in a double-blinded fashion approximately 30 minutes prior to functional MRI scanning. After a washout period of 48 hours, participants completed the other arm. The order of saline vs. insulin was counterbalanced.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. fMRI Measure of Hippocampal Activation

    Percentage active voxels of total hippocampal volume of interest

    Measured: 30 minutes After Intervention Administration

Secondary outcomes (1)
  1. Global Cognition

    Results derived from standardized z-score averaging performance across a battery of cognitive tests. The tests used include the Wechsler Memory Scale [WMS]-Revised Logical Memory I and II which measures a person's memory. Also used was the Wechsler Adult Intelligence Scale [WAIS] which measures intelligence in adults. The Trail Making A and B test was used to measure visual attention and task switching. The WAIS Block Design was done to test visuospatial and motor skills. The final test included in this measure is the Mini-Mental State Examination [MMSE]. The MMSE involves 30 questions and screens for cognitive impairment. Scores for each test were standardized to characterized individual global cognitive performance. The z-score reflects the standardized score. A positive z-score reflects a result above the average. A negative z-score reflects a result below the average.

    Measured: 90 mins

Timeline

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

  1. First posted28 Dec 2007 (estimated)
  2. Study startOct 2007
  3. Primary completionMay 2012
  4. Study completionMay 2012

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
31 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00581867
Sponsor's protocol ID
10896
Acronym
MAIN
Status last verified
Jul 2015
First submitted
19 Dec 2007
Last updated
14 Jul 2015
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Insulin Aspart in people with Alzheimer's Disease, run by Jeff Burns, MD 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 1 inclusion and 1 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 14 Jul 2015. 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.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 14 Jul 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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.

What does the primary outcome measure?

fMRI Measure of Hippocampal Activation (time frame: 30 minutes After Intervention Administration). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 14 Jul 2015; AzTrials last refreshed its copy on 7 Nov 2026.

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