Alzheimer's DiseaseNCT04426539
New IDEAS: Imaging Dementia-Evidence for Amyloid Scanning Study
An observational study of Alzheimer's Disease and Dementia, run by American College of Radiology at 1 site in United States.
Trial summary
New IDEAS is an observational, open-label, longitudinal cohort study designed to address the requirements of the CED provisions of the NCD on beta-amyloid PET. Building on the initial Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) study, New IDEAS will evaluate the association between amyloid PET and… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Alzheimer's Disease, Dementia, Mild Cognitive Impairment
- How many people
- 6,061 participants
- Where
- 1 siteUnited States
- Study dates
- 17 Dec 2020to 31 Dec 2024
- How long will I take part?
- 12 Months
- 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 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: A total of 7,000 Medicare beneficiaries meeting the study's eligibility criteria will be consented and enrolled over 30 months at sites throughout the United States. To ensure diversity, the study will enroll at least 2,000 Blacks/African Americans, at least 2,000 Latinos/Hispanics, and up to 3,000 additional participants from other racial and ethnic backgrounds. Based on disease stage prior to PET, all participants will be classified as having MCI or dementia as their disease stage. Based on their clinical presentation prior to PET, all participants will be classified as having "typical" (i.e. progressive amnestic) or "atypical" clinical presentations of AD as the potential cause of dementia or MCI.
Who may be able to join
- Medicare beneficiary with Medicare as primary insurance;
- Meets clinical criteria for Mild Cognitive Impairment (MCI) or Dementia as defined by the 2018 National Institute on Aging - Alzheimer's Association Research Framework
- Brain MRI and/or CT within 24 months prior to enrollment;
- Clinical laboratory assessment (complete blood count [CBC], standard blood chemistry profile, thyroid stimulating hormone [TSH], vitamin B12) within the 12 months prior to enrollment;
- 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;
- Neuropsychiatric syndrome can be classified into "clinically typical" or "clinically atypical" categories
Who cannot join
- Normal cognition or subjective complaints that are not verified by cognitive testing or key informant.
- 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.
- Amyloid status already known to patient or referring clinician based on prior amyloid imaging or cerebrospinal fluid analysis.
- Current or previous enrollment in an anti-amyloid therapeutic trial.
- Scan is being ordered solely based on a family history of dementia, presence of apolipoprotein E (ApoE) 4, or in lieu of genotyping for suspected autosomal mutation carriers.
- Scan being ordered for nonmedical purposes (e.g., legal, insurance coverage, or employment screening).
Show all 12Show fewer
- Cancer requiring active therapy (excluding non-melanoma skin cancer).
- Hip/pelvic fracture within the 12 months prior to enrollment.
- Body weight exceeds PET scanner weight limit.
- Currently pregnant or planning to become pregnant within 90 days of registration.
- Life expectancy less than 24 months based on medical co-morbidities.
- Residence in a skilled nursing facility (assisted living facility is not an exclusion criterion).
Trial locations and contacts
1 site in 1 country.
United States1 site
Full list of Active Sites and Imaging Facilities
Philadelphia, Pennsylvania, 19103
About this study
Official title: New IDEAS: Imaging Dementia-Evidence for Amyloid Scanning Study - A Study to Improve Precision in Amyloid PET Coverage and Patient Care
New IDEAS is an observational, open-label, longitudinal cohort study designed to address the requirements of the CED provisions of the NCD on beta-amyloid PET. Building on the initial Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) study, New IDEAS will evaluate the association between amyloid PET and patient-centered outcomes in an expanded and more ethnoracially and clinically diverse group of Medicare participants presenting with cognitive impairment.
Read the detailed description
A total of 7,000 Medicare beneficiaries meeting the study's eligibility criteria will be consented and enrolled over 30 months at sites throughout the United States. To ensure diversity, the study will enroll at least 2,000 Blacks/African Americans, at least 2,000 Latinos/Hispanics, and up to 3,000 additional participants from other racial and ethnic backgrounds. Based on disease stage prior to PET, all participants will be classified as having MCI or dementia as their disease stage. Based on their clinical presentation prior to PET, all participants will be classified as having "typical" (i.e. progressive amnestic) or "atypical" clinical presentations of AD as the potential cause of dementia or MCI.
Dementia specialists will team with PET facilities that have trained radiologists/nuclear medicine physicians and access to perform amyloid PET. All participating physicians and study staff will complete comprehensive training to ensure adherence of data requirements and study timelines. Amyloid PET will be performed and interpreted at each facility with results provided to the ordering dementia specialist for support in further decision making. The dementia specialists will record their diagnosis and intended management plan based on the current clinical and diagnostic information, and assuming no future access to amyloid PET at the "Pre-PET visit." This represents a "thought experiment" documenting the management plan that would be recommended by the specialist if the participant were not enrolling in New IDEAS and thus had no access to amyloid PET. PET results will be disclosed to patients and any consequent changes in management (if any) will be recommended at the "PET disclosure visit." Patients will return 90 ± 30 days following PET for an in person "Post-PET visit." At this final visit, the dementia specialists will record the diagnosis and implemented management plan, incorporating amyloid PET into clinical decision making. Medicare claims data will be collected directly from CMS for 12 months prior to the PET imaging and 12 months after the PET imaging, for each participant.
Aim 1 utilizes Medicare claims data to compare 12-month claims-derived outcomes in amyloid PET-positive versus amyloid PET-negative individuals with MCI and dementia across the entire cohort. Aims 2 and 3 investigate these associations in sub-groups of study participants based on self-identified race and ethnicity (Aim 2) and clinical presentation (Aim 3). Aims 2 and 3 additionally evaluate changes in management between the pre- and post-PET visits in the relevant sub-groups, to test whether benefits in health outcomes are mediated by changes in clinical management. The investigator's over-arching hypothesis, supported by preliminary data from the first IDEAS study, is that amyloid PET results will be associated with changes in clinical management, which in turn will translate into improved health outcomes in patients with amyloid PET-positive scans in comparison with patients with amyloid PET-negative scans. We further hypothesize that these effects will be seen across patients of different ethnoracial backgrounds, clinical presentations and disease stages (MCI and dementia).
Optional components of the study include the collection and archival of participant's amyloid PET images, and blood plasma. These repositories will serve as a resource to the field, enabling the testing and validation of emerging genetic and blood biomarkers. Separate consent will be obtained for participation in these components.
- Conditions
- Alzheimer's Disease, Dementia, Mild Cognitive Impairment
- Medical subject headings
- Alzheimer Disease, Dementia, Cognitive Dysfunction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Amyloid PET-Positive | Those for whom a beta amyloid PET scan is consistent with underlying AD as causing or contributing to cognitive impairment | |
| Amyloid PET-Negative | Those for whom a beta amyloid PET scan has ruled out AD (i.e. not consistent with underlying AD as causing or contributing to cognitive impairment) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Aim 1: Health outcomes in amyloid PET-positive versus amyloid PET-negative
To compare 12-month claims-derived health outcomes in amyloid PET-positive versus amyloid PET-negative individuals presenting with MCI and dementia in the entire study cohort of diverse Medicare beneficiaries.
Measured: 12 Months
Secondary outcomes (1)
Aim 2: Changes in patient management and health outcomes among various ethnoracial groups
To describe the association of amyloid PET findings with changes in patient management and 12-month claims-derived health outcomes among Blacks/African Americans, Latinos/Hispanics and Whites/Caucasians presenting with MCI and dementia.
Measured: 12 Months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted11 Jun 2020
- Study start17 Dec 2020
- Primary completion31 Dec 2024
- Study completion31 Dec 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (72)Papers the sponsor has linked to this study.
- Other trials for Alzheimer's DiseaseStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- 6,061 participants (actual)
- Target duration
- 12 Months
Sponsor and investigators
- Lead sponsor
- American College of Radiology
- Sponsor type
- University, hospital or other
- Collaborators
- Alzheimer's Association
- Responsible party
- Sponsor
- Investigators
- Gil Rabinovici, MD, Study chair, University of California, San Francisco
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04426539
- Sponsor's protocol ID
- New IDEAS
- Status last verified
- Jan 2026
- First submitted
- 8 Jun 2020
- Last updated
- 2 Feb 2026
- Results posted
- No
- Individual data sharing
- Yes: The Study is committed to providing investigators in academia and industry an opportunity to access data collected as part of the study for purposes that are consistent with the goals of New IDEAS. The IDEAS Study archives the clinical and image data obtained as part of its research activity. This archive can be used for secondary research studies, to guide further technology development, and for educational purposes. Access to CMS claims data used in the New IDEAS Study is handled separately and requires permission from CMS. Any individual or entity may submit a request for the clinical data, image data, or images linked to clinical data archived by the New IDEAS Study. The Study will provide requesters the raw data as it is archived in the database. However, requesters can specify subsets of data they desire using the annotated elements from the case report forms. The identity (and identifiable information) of trial participants, sites and Study investigators will not be provided.
Publications
Rabinovici GD, Gatsonis C, Apgar C, Chaudhary K, Gareen I, Hanna L, Hendrix J, Hillner BE, Olson C, Lesman-Segev OH, Romanoff J, Siegel BA, Whitmer RA, Carrillo MC. Association of Amyloid Positron Emission Tomography With Subsequent Change in Clinical Management Among Medicare Beneficiaries With Mild Cognitive Impairment or Dementia. JAMA. 2019 Apr 2;321(13):1286-1294. doi: 10.1001/jama.2019.2000.
PubMed 30938796Hyman BT, Phelps CH, Beach TG, Bigio EH, Cairns NJ, Carrillo MC, Dickson DW, Duyckaerts C, Frosch MP, Masliah E, Mirra SS, Nelson PT, Schneider JA, Thal DR, Thies B, Trojanowski JQ, Vinters HV, Montine TJ. National Institute on Aging-Alzheimer's Association guidelines for the neuropathologic assessment of Alzheimer's disease. Alzheimers Dement. 2012 Jan;8(1):1-13. doi: 10.1016/j.jalz.2011.10.007.
PubMed 22265587Mirra SS, Heyman A, McKeel D, Sumi SM, Crain BJ, Brownlee LM, Vogel FS, Hughes JP, van Belle G, Berg L. The Consortium to Establish a Registry for Alzheimer's Disease (CERAD). Part II. Standardization of the neuropathologic assessment of Alzheimer's disease. Neurology. 1991 Apr;41(4):479-86. doi: 10.1212/wnl.41.4.479.
PubMed 2011243Clark CM, Pontecorvo MJ, Beach TG, Bedell BJ, Coleman RE, Doraiswamy PM, Fleisher AS, Reiman EM, Sabbagh MN, Sadowsky CH, Schneider JA, Arora A, Carpenter AP, Flitter ML, Joshi AD, Krautkramer MJ, Lu M, Mintun MA, Skovronsky DM; AV-45-A16 Study Group. Cerebral PET with florbetapir compared with neuropathology at autopsy for detection of neuritic amyloid-beta plaques: a prospective cohort study. Lancet Neurol. 2012 Aug;11(8):669-78. doi: 10.1016/S1474-4422(12)70142-4. Epub 2012 Jun 28.
PubMed 22749065Curtis C, Gamez JE, Singh U, Sadowsky CH, Villena T, Sabbagh MN, Beach TG, Duara R, Fleisher AS, Frey KA, Walker Z, Hunjan A, Holmes C, Escovar YM, Vera CX, Agronin ME, Ross J, Bozoki A, Akinola M, Shi J, Vandenberghe R, Ikonomovic MD, Sherwin PF, Grachev ID, Farrar G, Smith AP, Buckley CJ, McLain R, Salloway S. Phase 3 trial of flutemetamol labeled with radioactive fluorine 18 imaging and neuritic plaque density. JAMA Neurol. 2015 Mar;72(3):287-94. doi: 10.1001/jamaneurol.2014.4144.
PubMed 25622185Sabri O, Sabbagh MN, Seibyl J, Barthel H, Akatsu H, Ouchi Y, Senda K, Murayama S, Ishii K, Takao M, Beach TG, Rowe CC, Leverenz JB, Ghetti B, Ironside JW, Catafau AM, Stephens AW, Mueller A, Koglin N, Hoffmann A, Roth K, Reininger C, Schulz-Schaeffer WJ; Florbetaben Phase 3 Study Group. Florbetaben PET imaging to detect amyloid beta plaques in Alzheimer's disease: phase 3 study. Alzheimers Dement. 2015 Aug;11(8):964-74. doi: 10.1016/j.jalz.2015.02.004. Epub 2015 Mar 28.
PubMed 25824567La Joie R, Ayakta N, Seeley WW, Borys E, Boxer AL, DeCarli C, Dore V, Grinberg LT, Huang E, Hwang JH, Ikonomovic MD, Jack C Jr, Jagust WJ, Jin LW, Klunk WE, Kofler J, Lesman-Segev OH, Lockhart SN, Lowe VJ, Masters CL, Mathis CA, McLean CL, Miller BL, Mungas D, O'Neil JP, Olichney JM, Parisi JE, Petersen RC, Rosen HJ, Rowe CC, Spina S, Vemuri P, Villemagne VL, Murray ME, Rabinovici GD. Multisite study of the relationships between antemortem [11C]PIB-PET Centiloid values and postmortem measures of Alzheimer's disease neuropathology. Alzheimers Dement. 2019 Feb;15(2):205-216. doi: 10.1016/j.jalz.2018.09.001. Epub 2018 Oct 19.
PubMed 30347188Mayeda ER, Glymour MM, Quesenberry CP, Whitmer RA. Inequalities in dementia incidence between six racial and ethnic groups over 14 years. Alzheimers Dement. 2016 Mar;12(3):216-24. doi: 10.1016/j.jalz.2015.12.007. Epub 2016 Feb 11.
PubMed 26874595Filshtein TJ, Dugger BN, Jin LW, Olichney JM, Farias ST, Carvajal-Carmona L, Lott P, Mungas D, Reed B, Beckett LA, DeCarli C. Neuropathological Diagnoses of Demented Hispanic, Black, and Non-Hispanic White Decedents Seen at an Alzheimer's Disease Center. J Alzheimers Dis. 2019;68(1):145-158. doi: 10.3233/JAD-180992.
PubMed 30775996Greiner KA, Friedman DB, Adams SA, Gwede CK, Cupertino P, Engelman KK, Meade CD, Hebert JR. Effective recruitment strategies and community-based participatory research: community networks program centers' recruitment in cancer prevention studies. Cancer Epidemiol Biomarkers Prev. 2014 Mar;23(3):416-23. doi: 10.1158/1055-9965.EPI-13-0760.
PubMed 24609851De las Nueces D, Hacker K, DiGirolamo A, Hicks LS. A systematic review of community-based participatory research to enhance clinical trials in racial and ethnic minority groups. Health Serv Res. 2012 Jun;47(3 Pt 2):1363-86. doi: 10.1111/j.1475-6773.2012.01386.x. Epub 2012 Feb 21.
PubMed 22353031Beach TG, Monsell SE, Phillips LE, Kukull W. Accuracy of the clinical diagnosis of Alzheimer disease at National Institute on Aging Alzheimer Disease Centers, 2005-2010. J Neuropathol Exp Neurol. 2012 Apr;71(4):266-73. doi: 10.1097/NEN.0b013e31824b211b.
PubMed 22437338Monsell SE, Kukull WA, Roher AE, Maarouf CL, Serrano G, Beach TG, Caselli RJ, Montine TJ, Reiman EM. Characterizing Apolipoprotein E epsilon4 Carriers and Noncarriers With the Clinical Diagnosis of Mild to Moderate Alzheimer Dementia and Minimal beta-Amyloid Peptide Plaques. JAMA Neurol. 2015 Oct;72(10):1124-31. doi: 10.1001/jamaneurol.2015.1721.
PubMed 26302353Liu E, Schmidt ME, Margolin R, Sperling R, Koeppe R, Mason NS, Klunk WE, Mathis CA, Salloway S, Fox NC, Hill DL, Les AS, Collins P, Gregg KM, Di J, Lu Y, Tudor IC, Wyman BT, Booth K, Broome S, Yuen E, Grundman M, Brashear HR; Bapineuzumab 301 and 302 Clinical Trial Investigators. Amyloid-beta 11C-PiB-PET imaging results from 2 randomized bapineuzumab phase 3 AD trials. Neurology. 2015 Aug 25;85(8):692-700. doi: 10.1212/WNL.0000000000001877. Epub 2015 Jul 24.
PubMed 26208959Landau SM, Horng A, Fero A, Jagust WJ; Alzheimer's Disease Neuroimaging Initiative. Amyloid negativity in patients with clinically diagnosed Alzheimer disease and MCI. Neurology. 2016 Apr 12;86(15):1377-1385. doi: 10.1212/WNL.0000000000002576. Epub 2016 Mar 11.
PubMed 26968515
Study at a glance
From the registry record, last updated by the sponsor on 2 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- New IDEAS: Imaging Dementia-Evidence for Amyloid Scanning Study - A Study to Improve Precision in Amyloid PET Coverage and Patient Care
- ClinicalTrials.gov ID
- NCT04426539
- Acronym / sponsor ID
- New IDEAS
- Conditions
- Alzheimer's Disease, Dementia, Mild Cognitive Impairment
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 6,061 participants (actual)
- Lead sponsor
- American College of RadiologyUniversity, hospital or other
- Collaborators
- Alzheimer's Association
- Study start
- 17 Dec 2020 (actual)
- Primary completion
- 31 Dec 2024 (actual)
- Study completion
- 31 Dec 2024 (actual)
- First posted
- 11 Jun 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
New IDEAS is an observational, open-label, longitudinal cohort study designed to address the requirements of the CED provisions of the NCD on beta-amyloid PET. Building on the initial Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) study, New IDEAS will evaluate the association between amyloid PET and patient-centered outcomes in an expanded and more ethnoracially and clinically diverse group of Medicare participants presenting with cognitive impairment.
Detailed description
A total of 7,000 Medicare beneficiaries meeting the study's eligibility criteria will be consented and enrolled over 30 months at sites throughout the United States. To ensure diversity, the study will enroll at least 2,000 Blacks/African Americans, at least 2,000 Latinos/Hispanics, and up to 3,000 additional participants from other racial and ethnic backgrounds. Based on disease stage prior to PET, all participants will be classified as having MCI or dementia as their disease stage. Based on their clinical presentation prior to PET, all participants will be classified as having "typical" (i.e. progressive amnestic) or "atypical" clinical presentations of AD as the potential cause of dementia or MCI.
Dementia specialists will team with PET facilities that have trained radiologists/nuclear medicine physicians and access to perform amyloid PET. All participating physicians and study staff will complete comprehensive training to ensure adherence of data requirements and study timelines. Amyloid PET will be performed and interpreted at each facility with results provided to the ordering dementia specialist for support in further decision making. The dementia specialists will record their diagnosis and intended management plan based on the current clinical and diagnostic information, and assuming no future access to amyloid PET at the "Pre-PET visit." This represents a "thought experiment" documenting the management plan that would be recommended by the specialist if the participant were not enrolling in New IDEAS and thus had no access to amyloid PET. PET results will be disclosed to patients and any consequent changes in management (if any) will be recommended at the "PET disclosure visit." Patients will return 90 ± 30 days following PET for an in person "Post-PET visit." At this final visit, the dementia specialists will record the diagnosis and implemented management plan, incorporating amyloid PET into clinical decision making. Medicare claims data will be collected directly from CMS for 12 months prior to the PET imaging and 12 months after the PET imaging, for each participant.
Aim 1 utilizes Medicare claims data to compare 12-month claims-derived outcomes in amyloid PET-positive versus amyloid PET-negative individuals with MCI and dementia across the entire cohort. Aims 2 and 3 investigate these associations in sub-groups of study participants based on self-identified race and ethnicity (Aim 2) and clinical presentation (Aim 3). Aims 2 and 3 additionally evaluate changes in management between the pre- and post-PET visits in the relevant sub-groups, to test whether benefits in health outcomes are mediated by changes in clinical management. The investigator's over-arching hypothesis, supported by preliminary data from the first IDEAS study, is that amyloid PET results will be associated with changes in clinical management, which in turn will translate into improved health outcomes in patients with amyloid PET-positive scans in comparison with patients with amyloid PET-negative scans. We further hypothesize that these effects will be seen across patients of different ethnoracial backgrounds, clinical presentations and disease stages (MCI and dementia).
Optional components of the study include the collection and archival of participant's amyloid PET images, and blood plasma. These repositories will serve as a resource to the field, enabling the testing and validation of emerging genetic and blood biomarkers. Separate consent will be obtained for participation in these components.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 12 Months
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Amyloid PET-Positive | – | –Those for whom a beta amyloid PET scan is consistent with underlying AD as causing or contributing to cognitive impairment |
| Amyloid PET-Negative | – | –Those for whom a beta amyloid PET scan has ruled out AD (i.e. not consistent with underlying AD as causing or contributing to cognitive impairment) |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- A total of 7,000 Medicare beneficiaries meeting the study's eligibility criteria will be consented and enrolled over 30 months at sites throughout the United States. To ensure diversity, the study will enroll at least 2,000 Blacks/African Americans, at least 2,000 Latinos/Hispanics, and up to 3,000 additional participants from other racial and ethnic backgrounds. Based on disease stage prior to PET, all participants will be classified as having MCI or dementia as their disease stage. Based on their clinical presentation prior to PET, all participants will be classified as having "typical" (i.e. progressive amnestic) or "atypical" clinical presentations of AD as the potential cause of dementia or MCI.
Key inclusion criteria (8 listed)
- Medicare beneficiary with Medicare as primary insurance;
- Meets clinical criteria for Mild Cognitive Impairment (MCI) or Dementia as defined by the 2018 National Institute on Aging - Alzheimer's Association Research Framework
- Brain MRI and/or CT within 24 months prior to enrollment;
- Clinical laboratory assessment (complete blood count [CBC], standard blood chemistry profile, thyroid stimulating hormone [TSH], vitamin B12) within the 12 months prior to enrollment;
- Able to tolerate amyloid PET required by protocol, to be performed at a participating PET facility;
Key exclusion criteria (12 listed)
- Normal cognition or subjective complaints that are not verified by cognitive testing or key informant.
- 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.
- Amyloid status already known to patient or referring clinician based on prior amyloid imaging or cerebrospinal fluid analysis.
- Current or previous enrollment in an anti-amyloid therapeutic trial.
- Scan is being ordered solely based on a family history of dementia, presence of apolipoprotein E (ApoE) 4, or in lieu of genotyping for suspected autosomal mutation carriers.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Aim 1: Health outcomes in amyloid PET-positive versus amyloid PET-negative
Time frame: 12 Months
To compare 12-month claims-derived health outcomes in amyloid PET-positive versus amyloid PET-negative individuals presenting with MCI and dementia in the entire study cohort of diverse Medicare beneficiaries.
1 secondary outcome
Aim 2: Changes in patient management and health outcomes among various ethnoracial groups
Time frame: 12 Months
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Feb 2026.
- Background: PubMed 30938796Rabinovici GD, Gatsonis C, Apgar C, Chaudhary K, Gareen I, Hanna L, Hendrix J, Hillner BE, Olson C, Lesman-Segev OH, Romanoff J, Siegel BA, Whitmer RA, Carrillo MC. Association of Amyloid Positron Emission Tomography With Subsequent Change in Clinical Management Among Medicare Beneficiaries With Mild Cognitive Impairment or Dementia. JAMA. 2019 Apr 2;321(13):1286-1294. doi: 10.1001/jama.2019.2000.
- Background: PubMed 22265587Hyman BT, Phelps CH, Beach TG, Bigio EH, Cairns NJ, Carrillo MC, Dickson DW, Duyckaerts C, Frosch MP, Masliah E, Mirra SS, Nelson PT, Schneider JA, Thal DR, Thies B, Trojanowski JQ, Vinters HV, Montine TJ. National Institute on Aging-Alzheimer's Association guidelines for the neuropathologic assessment of Alzheimer's disease. Alzheimers Dement. 2012 Jan;8(1):1-13. doi: 10.1016/j.jalz.2011.10.007.
- Background: PubMed 2011243Mirra SS, Heyman A, McKeel D, Sumi SM, Crain BJ, Brownlee LM, Vogel FS, Hughes JP, van Belle G, Berg L. The Consortium to Establish a Registry for Alzheimer's Disease (CERAD). Part II. Standardization of the neuropathologic assessment of Alzheimer's disease. Neurology. 1991 Apr;41(4):479-86. doi: 10.1212/wnl.41.4.479.
- Background: PubMed 22749065Clark CM, Pontecorvo MJ, Beach TG, Bedell BJ, Coleman RE, Doraiswamy PM, Fleisher AS, Reiman EM, Sabbagh MN, Sadowsky CH, Schneider JA, Arora A, Carpenter AP, Flitter ML, Joshi AD, Krautkramer MJ, Lu M, Mintun MA, Skovronsky DM; AV-45-A16 Study Group. Cerebral PET with florbetapir compared with neuropathology at autopsy for detection of neuritic amyloid-beta plaques: a prospective cohort study. Lancet Neurol. 2012 Aug;11(8):669-78. doi: 10.1016/S1474-4422(12)70142-4. Epub 2012 Jun 28.
- Background: PubMed 25622185Curtis C, Gamez JE, Singh U, Sadowsky CH, Villena T, Sabbagh MN, Beach TG, Duara R, Fleisher AS, Frey KA, Walker Z, Hunjan A, Holmes C, Escovar YM, Vera CX, Agronin ME, Ross J, Bozoki A, Akinola M, Shi J, Vandenberghe R, Ikonomovic MD, Sherwin PF, Grachev ID, Farrar G, Smith AP, Buckley CJ, McLain R, Salloway S. Phase 3 trial of flutemetamol labeled with radioactive fluorine 18 imaging and neuritic plaque density. JAMA Neurol. 2015 Mar;72(3):287-94. doi: 10.1001/jamaneurol.2014.4144.
- Background: PubMed 25824567Sabri O, Sabbagh MN, Seibyl J, Barthel H, Akatsu H, Ouchi Y, Senda K, Murayama S, Ishii K, Takao M, Beach TG, Rowe CC, Leverenz JB, Ghetti B, Ironside JW, Catafau AM, Stephens AW, Mueller A, Koglin N, Hoffmann A, Roth K, Reininger C, Schulz-Schaeffer WJ; Florbetaben Phase 3 Study Group. Florbetaben PET imaging to detect amyloid beta plaques in Alzheimer's disease: phase 3 study. Alzheimers Dement. 2015 Aug;11(8):964-74. doi: 10.1016/j.jalz.2015.02.004. Epub 2015 Mar 28.
- Background: PubMed 30347188La Joie R, Ayakta N, Seeley WW, Borys E, Boxer AL, DeCarli C, Dore V, Grinberg LT, Huang E, Hwang JH, Ikonomovic MD, Jack C Jr, Jagust WJ, Jin LW, Klunk WE, Kofler J, Lesman-Segev OH, Lockhart SN, Lowe VJ, Masters CL, Mathis CA, McLean CL, Miller BL, Mungas D, O'Neil JP, Olichney JM, Parisi JE, Petersen RC, Rosen HJ, Rowe CC, Spina S, Vemuri P, Villemagne VL, Murray ME, Rabinovici GD. Multisite study of the relationships between antemortem [11C]PIB-PET Centiloid values and postmortem measures of Alzheimer's disease neuropathology. Alzheimers Dement. 2019 Feb;15(2):205-216. doi: 10.1016/j.jalz.2018.09.001. Epub 2018 Oct 19.
- Background: PubMed 26874595Mayeda ER, Glymour MM, Quesenberry CP, Whitmer RA. Inequalities in dementia incidence between six racial and ethnic groups over 14 years. Alzheimers Dement. 2016 Mar;12(3):216-24. doi: 10.1016/j.jalz.2015.12.007. Epub 2016 Feb 11.
- Background: PubMed 30775996Filshtein TJ, Dugger BN, Jin LW, Olichney JM, Farias ST, Carvajal-Carmona L, Lott P, Mungas D, Reed B, Beckett LA, DeCarli C. Neuropathological Diagnoses of Demented Hispanic, Black, and Non-Hispanic White Decedents Seen at an Alzheimer's Disease Center. J Alzheimers Dis. 2019;68(1):145-158. doi: 10.3233/JAD-180992.
- Background: PubMed 24609851Greiner KA, Friedman DB, Adams SA, Gwede CK, Cupertino P, Engelman KK, Meade CD, Hebert JR. Effective recruitment strategies and community-based participatory research: community networks program centers' recruitment in cancer prevention studies. Cancer Epidemiol Biomarkers Prev. 2014 Mar;23(3):416-23. doi: 10.1158/1055-9965.EPI-13-0760.
- Background: PubMed 22353031De las Nueces D, Hacker K, DiGirolamo A, Hicks LS. A systematic review of community-based participatory research to enhance clinical trials in racial and ethnic minority groups. Health Serv Res. 2012 Jun;47(3 Pt 2):1363-86. doi: 10.1111/j.1475-6773.2012.01386.x. Epub 2012 Feb 21.
- Background: PubMed 22437338Beach TG, Monsell SE, Phillips LE, Kukull W. Accuracy of the clinical diagnosis of Alzheimer disease at National Institute on Aging Alzheimer Disease Centers, 2005-2010. J Neuropathol Exp Neurol. 2012 Apr;71(4):266-73. doi: 10.1097/NEN.0b013e31824b211b.
- Main Study WebsiteLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. The Study is committed to providing investigators in academia and industry an opportunity to access data collected as part of the study for purposes that are consistent with the goals of New IDEAS. The IDEAS Study archives the clinical and image data obtained as part of its research activity. This archive can be used for secondary research studies, to guide further technology development, and for educational purposes. Access to CMS claims data used in the New IDEAS Study is handled separately and requires permission from CMS. Any individual or entity may submit a request for the clinical data, image data, or images linked to clinical data archived by the New IDEAS Study. The Study will provide requesters the raw data as it is archived in the database. However, requesters can specify subsets of data they desire using the annotated elements from the case report forms. The identity (and identifiable information) of trial participants, sites and Study investigators will not be provided.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Gil Rabinovici, MD study chair
University of California, San Francisco
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Alzheimer's Disease and Dementia, run by American College of Radiology 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 8 inclusion and 12 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 2 Feb 2026. 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.
What does the primary outcome measure?
Aim 1: Health outcomes in amyloid PET-positive versus amyloid PET-negative (time frame: 12 Months). 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 NCT04426539, which also lists 72 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 2 Feb 2026; AzTrials last refreshed its copy on 2 Nov 2026.