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Mild Cognitive ImpairmentIMPACT2NCT02781220

Implications for Management of PET Amyloid Classification Technology in the Imaging Dementia(IDEAS) Trial

An observational study of Mild Cognitive Impairment and Dementia, run by University of Utah at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The main purpose of this study is to build upon the evidence captured in the Imaging Dementia - Evidence for Amyloid Scanning (IDEAS; NCT02420756) trial to include valuable information regarding patient-reported outcomes and physician confidence in diagnosis and management based on the Implications for Management of… Read more about this study

Who is it for?
Ages 65 years and older
How many people
69 participants
Where
1 siteUnited States
Study dates
Jul 2016to 10 Jun 2023
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 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Study population: Participants must be Medicare beneficiaries referred by qualified dementia specialists and must meet AUC for amyloid PET (Johnson et al. 2013).

Who may be able to join

  • 65 and older;
  • Medicare beneficiary;
  • Diagnosis of mild cognitive impairment (MCI) or dementia, according to Diagnostic and Statistical Manual - IV (DSM-IV) and/or National Institutes of Aging-Alzheimer's Association criteria, verified by a dementia specialist within 24 months (American Psychiatric Association. 2000; McKhann et al. 2011; Albert et al. 2011);
  • Meets AUC:
  • Cognitive complaint verified by objectively confirmed cognitive impairment;
  • The etiologic cause of cognitive impairment is uncertain after a comprehensive evaluation by a dementia specialist, including general medical and neurological examination, mental status testing including standard measures of cognitive impairment, laboratory testing, and structural neuroimaging as below;
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  • Alzheimer's disease is a diagnostic consideration;
  • Knowledge of amyloid PET status is expected to alter diagnosis and management.
  • Head MRI and/or CT within 24 months prior to enrollment;
  • Clinical laboratory assessment within the 12 months prior to enrollment: complete blood count (CBC), standard blood chemistry profile, thyroid stimulating hormone (TSH); vitamin B12;
  • Able to tolerate amyloid PET required by protocol, to be performed at a participating PET facility;
  • English or Spanish speaking (for the purposes of informed consent);
  • Willing and able to provide consent. Consent may be by proxy.

Who cannot join

  • Normal cognition or subjective complaints that are not verified by cognitive testing.
  • Knowledge of amyloid status, in the opinion of the referring dementia expert, may cause significant psychological harm or otherwise negatively impact the patient or family.
  • Scan is being ordered solely based on a family history of dementia, presence of apolipoprotein E, or in lieu of genotyping for suspected autosomal mutation carriers.
  • Scan being ordered for nonmedical purposes (e.g., legal, insurance coverage, or employment screening).
  • Cancer requiring active therapy (excluding non-melanoma skin cancer);
  • Hip/pelvic fracture within the 12 months prior to enrollment;
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  • Body weight exceeds PET scanner weight limit;
  • Life expectancy less than 24 months based on medical co-morbidities;
  • Residence in a skilled nursing facility.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Center for Alzheimer's Care, Imaging & Research

    Salt Lake City, Utah, 84108-1225

Other trials in United States

About this study

The main purpose of this study is to build upon the evidence captured in the Imaging Dementia - Evidence for Amyloid Scanning (IDEAS; NCT02420756) trial to include valuable information regarding patient-reported outcomes and physician confidence in diagnosis and management based on the Implications for Management of PET Amyloid Classification Technology (IMPACT; NCT number not yet assigned) trial design.

Read the detailed description

The primary purpose of this prospective, observational study is to examine the benefit of amyloid positron emission tomography and computed tomography (PET/CT) scan in clinical practice for participants at our site that are enrolled in the IDEAS (NCT02420756) trial. To accomplish this, when a clinician has ordered an amyloid PET scan, the investigators will assess the impact of [18F]Flutemetamol PET/CT scans on 1) physician diagnosis and management as it relates to care practices and drug management, and 2) patient reported outcomes in patients evaluated in the Cognitive Disorders Clinic at the University of Utah and meeting Appropriate Use Criteria (AUC) for clinical amyloid PET/CT scans. A secondary purpose is to compare the semi-quantitative assessment of amyloid plaque burden using vendor supplied software and standard visual assessment of amyloid positivity.

The primary hypothesis is that, in diagnostically uncertain cases, knowledge of amyloid status as determined by amyloid PET/CT scans may alter patient diagnosis and management and lead to significant changes in patient and family reported outcomes. A secondary hypothesis is that vendor supplied semi-quantitative assessment of amyloid plaque positivity will be superior to standard visual criteria assessments.

Objectives

AIM 1: to assess the change in diagnosis and management, related to care practices and drug management of adult patients being evaluated for cognitive deficits and meeting Appropriate Use Criteria (AUC)

AIM 2: to assess the change of amyloid PET/ CT scans on patient-reported outcomes involving care partner confidence and satisfaction

AIM 3: to assess confidence increase through use of vendor supplied semi-quantitative software

AIM 4: to assess adherence to identified patient management related to care practices and drug management

Keywords
MCI, Dementia, amyloid PET, physician diagnosis, Alzheimer's disease, AD, PET imaging, Appropriate Use Criteria, patient-reported outcomes, patient adherence
Medical subject headings
Cognitive Dysfunction, Dementia, Alzheimer Disease, Patient Compliance

What participants receive

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

Study groups in NCT02781220
Study groupRoleWhat they receive
Qualifying participantsAll consented IDEAS trial participants will have additional data collected: visual and semi-quantitative software aided amyloid PET scan interpretation, care partner questionnaires and documented provider diagnosis, diagnostic confidence, and management plan following the IMPACT design

What is being measured

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

  1. Percentage of change in care practices after amyloid PET scan

    % of 13 care practices that differ before and after the amyloid PET scan

    Measured: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan

Secondary outcomes (14)
  1. Percentage of change in drug management options after amyloid PET

    % of drug management options that differ before and after the amyloid PET scan

    Measured: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan

  2. Change in % likelihood of Alzheimer's disease (AD) diagnosis after amyloid PET scan

    Difference in % of AD likelihood identified before and after the amyloid PET scan

    Measured: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan

  3. Percentage of change in leading diagnosis after amyloid PET

    % of leading diagnosis that differ before and after amyloid PET scan

    Measured: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan

  4. Change in physician confidence in leading diagnosis

    Difference in 5-point scale of physician confidence in leading diagnosis before and after amyloid PET scan

    Measured: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan

  5. Change in care partner's confidence in diagnosis after amyloid PET

    Difference in 5-point scale of care partner confidence in diagnosis before and after amyloid PET scan

    Measured: Visit 1, 30 days prior to scan, Visit 4, 90 days after scan, Visit 5, 180 days after scan and Visit 6, 270 days after scan

  6. Change in care partner satisfaction with evaluation after amyloid PET

    Difference in 5-point scale of care partner satisfaction before team care and after amyloid PET scan

    Measured: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan

  7. Change in care partner assessment of the quality of evaluation after amyloid PET

    Difference in 5-point scale of care partner quality before team care and after amyloid PET scan

    Measured: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan

  8. Proportion of care partners finding amyloid PET scan worthwhile

    Proportion of care partners indicating they would agree to do an amyloid PET again on a yes/no/don't know scale

    Measured: Visit 4, 90 days after scan

  9. Proportion exhibiting increased behavior disturbance during amyloid scan visit

    % of patients showing a difference in the 44-point Catastrophic Reaction Scale between the median value in all non-scan visits and the value in the amyloid PET scan visit

    Measured: Visit 1, Visit 2, Visit 3, and Visit 4 90 days post scan

  10. Percentage of change exhibiting increased behavior disturbance when the diagnosis is given

    % of patients showing a difference in the 44-point Catastrophic Reaction Scale between Visit 1 and Visit 3 when learning the result of the scan

    Measured: Visit 1, Visit 3, 60 days

  11. Care partner's sustained confidence in diagnosis received after amyloid PET scan

    Care partner confidence in diagnosis received after amyloid PET scan on a 5-point scale

    Measured: Visit 4, Visit 5, and Visit 6, 270 days post scan

  12. Care partner's sustained confidence in ability to adhere to management plan received after amyloid PET scan

    Care partner confidence in ability to follow management plan outlined by physician after amyloid PET scan on a 5-point scale

    Measured: Visit 4, Visit 5, and Visit 6, 270 days post scan

  13. Percentage of recommended care practices adhered to after amyloid PET scan

    % of care practices recommended after amyloid PET scan reported by care partner

    Measured: Visit 4, Visit 5, and Visit 6, 270 days post scan

  14. Percentage of recommended drug management adhered to after amyloid PET scan

    % of drug management options recommended after amyloid PET scan reported by care partner

    Measured: Visit 4, Visit 5, and Visit 6, 270 days post scan

Timeline

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

  1. First posted24 May 2016 (estimated)
  2. Study startJul 2016
  3. Primary completion10 Jun 2023
  4. Study completion10 Jun 2023

Why it stopped: IRB Study Closure - No HRPP Progress Update

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
Case only
Time perspective
Prospective
Enrolment
69 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02781220
Sponsor's protocol ID
90351
Acronym
IMPACT2
Status last verified
Dec 2024
First submitted
18 May 2016
Last updated
9 Dec 2024
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided: only de-identified data will be shared

Publications

  • Naylor MD, Karlawish JH, Arnold SE, Khachaturian AS, Khachaturian ZS, Lee VM, Baumgart M, Banerjee S, Beck C, Blennow K, Brookmeyer R, Brunden KR, Buckwalter KC, Comer M, Covinsky K, Feinberg LF, Frisoni G, Green C, Guimaraes RM, Gwyther LP, Hefti FF, Hutton M, Kawas C, Kent DM, Kuller L, Langa KM, Mahley RW, Maslow K, Masters CL, Meier DE, Neumann PJ, Paul SM, Petersen RC, Sager MA, Sano M, Schenk D, Soares H, Sperling RA, Stahl SM, van Deerlin V, Stern Y, Weir D, Wolk DA, Trojanowski JQ. Advancing Alzheimer's disease diagnosis, treatment, and care: recommendations from the Ware Invitational Summit. Alzheimers Dement. 2012 Sep;8(5):445-52. doi: 10.1016/j.jalz.2012.08.001.

    PubMed 22959699
  • Albert MS, Blacker D. Mild cognitive impairment and dementia. Annu Rev Clin Psychol. 2006;2:379-88. doi: 10.1146/annurev.clinpsy.1.102803.144039.

    PubMed 17716075
  • Mitchell AJ. The clinical significance of subjective memory complaints in the diagnosis of mild cognitive impairment and dementia: a meta-analysis. Int J Geriatr Psychiatry. 2008 Nov;23(11):1191-202. doi: 10.1002/gps.2053.

    PubMed 18500688
  • Matsuda T, Takayama T, Tashiro M, Nakamura Y, Ohashi Y, Shimozuma K. Mild cognitive impairment after adjuvant chemotherapy in breast cancer patients--evaluation of appropriate research design and methodology to measure symptoms. Breast Cancer. 2005;12(4):279-87. doi: 10.2325/jbcs.12.279.

    PubMed 16286908
  • Petersen RC, Smith GE, Waring SC, Ivnik RJ, Tangalos EG, Kokmen E. Mild cognitive impairment: clinical characterization and outcome. Arch Neurol. 1999 Mar;56(3):303-8. doi: 10.1001/archneur.56.3.303.

    PubMed 10190820
  • Braak H, Braak E. Diagnostic criteria for neuropathologic assessment of Alzheimer's disease. Neurobiol Aging. 1997 Jul-Aug;18(4 Suppl):S85-8. doi: 10.1016/s0197-4580(97)00062-6.

    PubMed 9330992
  • Selkoe DJ. Physiological production of the beta-amyloid protein and the mechanism of Alzheimer's disease. Trends Neurosci. 1993 Oct;16(10):403-9. doi: 10.1016/0166-2236(93)90008-a.

    PubMed 7504355
  • Naslund J, Haroutunian V, Mohs R, Davis KL, Davies P, Greengard P, Buxbaum JD. Correlation between elevated levels of amyloid beta-peptide in the brain and cognitive decline. JAMA. 2000 Mar 22-29;283(12):1571-7. doi: 10.1001/jama.283.12.1571.

    PubMed 10735393
  • Arendash GW, Gordon MN, Diamond DM, Austin LA, Hatcher JM, Jantzen P, DiCarlo G, Wilcock D, Morgan D. Behavioral assessment of Alzheimer's transgenic mice following long-term Abeta vaccination: task specificity and correlations between Abeta deposition and spatial memory. DNA Cell Biol. 2001 Nov;20(11):737-44. doi: 10.1089/10445490152717604.

    PubMed 11788052
  • Mosconi L, McHugh PF. FDG- and amyloid-PET in Alzheimer's disease: is the whole greater than the sum of the parts? Q J Nucl Med Mol Imaging. 2011 Jun;55(3):250-64.

    PubMed 21532539
  • Okello A, Koivunen J, Edison P, Archer HA, Turkheimer FE, Nagren K, Bullock R, Walker Z, Kennedy A, Fox NC, Rossor MN, Rinne JO, Brooks DJ. Conversion of amyloid positive and negative MCI to AD over 3 years: an 11C-PIB PET study. Neurology. 2009 Sep 8;73(10):754-60. doi: 10.1212/WNL.0b013e3181b23564. Epub 2009 Jul 8.

    PubMed 19587325
  • Resnick SM, Sojkova J, Zhou Y, An Y, Ye W, Holt DP, Dannals RF, Mathis CA, Klunk WE, Ferrucci L, Kraut MA, Wong DF. Longitudinal cognitive decline is associated with fibrillar amyloid-beta measured by [11C]PiB. Neurology. 2010 Mar 9;74(10):807-15. doi: 10.1212/WNL.0b013e3181d3e3e9. Epub 2010 Feb 10.

    PubMed 20147655
  • Wolk DA, Price JC, Saxton JA, Snitz BE, James JA, Lopez OL, Aizenstein HJ, Cohen AD, Weissfeld LA, Mathis CA, Klunk WE, De-Kosky ST. Amyloid imaging in mild cognitive impairment subtypes. Ann Neurol. 2009 May;65(5):557-68. doi: 10.1002/ana.21598.

    PubMed 19475670
  • Jack CR Jr, Knopman DS, Jagust WJ, Shaw LM, Aisen PS, Weiner MW, Petersen RC, Trojanowski JQ. Hypothetical model of dynamic biomarkers of the Alzheimer's pathological cascade. Lancet Neurol. 2010 Jan;9(1):119-28. doi: 10.1016/S1474-4422(09)70299-6.

    PubMed 20083042
  • Rowe CC, Villemagne VL. Amyloid imaging with PET in early Alzheimer disease diagnosis. Med Clin North Am. 2013 May;97(3):377-98. doi: 10.1016/j.mcna.2012.12.017.

    PubMed 23642577

Questions about this trial

What is this clinical trial studying?

An observational study of Mild Cognitive Impairment and Dementia, run by University of Utah 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 13 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: stopped early, as of the sponsor's last update on 9 Dec 2024. 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 was stopped early (reason given: IRB Study Closure - No HRPP Progress Update). Results are not available in the source record.

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?

Percentage of change in care practices after amyloid PET scan (time frame: Visit 1, 30 days prior to scan and Visit 4, 90 days after scan). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02781220, which also lists 58 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 9 Dec 2024.

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