Alzheimer's DiseaseIDEASNCT02420756
Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) Study
An observational study of Alzheimer's Disease and Dementia, run by American College of Radiology at 2 sites in United States.
Trial summary
The Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) Study will establish an open-label, longitudinal cohort study to assess the impact of amyloid PET on patient outcomes. The study will be performed in accordance with the Center for Medicare \& Medicaid Services (CMS) policy of Coverage with Evidence… Read more about this study
- Who is it for?
- Ages 65 years and older
- Conditions the study is for
- Alzheimer's Disease, Dementia, Mild Cognitive Impairment
- What is being tested?
- PET Scan
- Type of treatment
- Medical device
- How many people
- 18,488 participants
- Where
- 2 sitesUnited States
- Study dates
- Feb 2016to Dec 2017
- 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 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 MCI or dementia, according to 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 (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.
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
2 sites in 1 country.
United States2 sites
American College of Radiology Imaging Network
Philadelphia, Pennsylvania, 19103
Https://Www.Ideas-Study.Org/Site-Locator/
Philadelphia, Pennsylvania
About this study
Official title: Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) Study: A Coverage With Evidence Development Longitudinal Cohort Study
The Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) Study will establish an open-label, longitudinal cohort study to assess the impact of amyloid PET on patient outcomes. The study will be performed in accordance with the Center for Medicare \& Medicaid Services (CMS) policy of Coverage with Evidence Development (CED) in Medicare beneficiaries who meet the Appropriate Use Criteria (AUC) for amyloid PET (Johnson et al. 2013). Our hypothesis is that amyloid PET will decrease uncertainty and increase confidence in the underlying cause of cognitive impairment, that this will translate into earlier counseling and interventions in these domains, and that these interventions will lead to improved outcomes.
Read the detailed description
The IDEAS Study is an observational, open-label, longitudinal cohort study designed to assess the impact of amyloid PET on patient-oriented outcomes in Medicare beneficiaries with mild cognitive impairment (MCI) or dementia of uncertain etiology. The study falls under the Centers for Medicare \& Medicaid Services (CMS) Coverage with Evidence Development (CED) policy. A total of 18,488 Medicare beneficiaries meeting Appropriate Use Criteria (AUC) for amyloid PET will be enrolled over 24 months at sites throughout the United States. Dementia specialists will team with PET facilities able to perform amyloid PET and with trained radiologists/nuclear medicine physicians, all of whom will consent to completing the data requirements and timelines for the study. Amyloid PET will be performed and interpreted at each facility with results provided to the ordering physician for support in further clinical decision making, which will be captured for the study.
Our over-arching hypothesis is that, in diagnostically uncertain cases, knowledge of amyloid status as determined by amyloid PET will lead to significant changes in patient management, and that this will translate into improved long-term outcomes. We will pursue two specific aims:
Aim 1 investigates the impact of amyloid PET on short-term patient management, by comparing pre-PET intended management (ascertained in a case report form [CRF] prior to PET) to post-PET actual management 90-days post-PET). The primary objective will be to test whether amyloid PET leads to a ≥ 30% change between intended and actual patient management within 90 days in a cumulative endpoint consisting of: Alzheimer's disease (AD) drug therapy, other drug therapy, and counseling about safety and future planning. Secondary objectives will assess the impact of amyloid PET results on clinical diagnosis and prevention of unnecessary diagnostic procedures and treatments.
Aim 2 utilizes Medicare claims data to compare medical outcomes at 12 months for patients enrolled in the longitudinal cohort (amyloid PET-known) with those for a matched control cohort of patients who have never undergone amyloid PET imaging (amyloid PET-naïve). The primary objective will be to determine if amyloid PET in the amyloid PET-known cohort of patients is associated with a ≥ 10% reduction in hospitalizations and emergency room visits in comparison to the matched amyloid PET-naïve patients. Secondary objectives will examine whether knowledge of amyloid PET status reduces hospitalizations related to ambulatory-sensitive conditions, whether the association between amyloid PET knowledge and health outcomes varies by baseline cognitive status (MCI versus dementia) and amyloid status (amyloid positive versus negative). The amyloid PET-naïve cohort will be identified via a matching algorithm where each individual in the amyloid PET-known cohort will be matched to one individual with similar dementia diagnosis, pre-scan dementia-related resource utilization, age, race, gender, ethnicity, geographic location, and comorbid chronic conditions likely to impact cognition or the outcomes of interest seen at the same time as the amyloid PET-known patient (concurrent control).
In pursuing these Aims, we will generate valuable observational data on clinical utility that will inform future use of this technology in diagnostic algorithms, and develop a cohort of patients who undergo amyloid PET and can serve as a foundation to address future research questions.
- Conditions
- Alzheimer's Disease, Dementia, Mild Cognitive Impairment
- Being tested
- PET Scan
- 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.
PET ScanDevice
Also called Collection of institutional practice PET imaging data
What is being measured
The primary outcome is the main question the study is designed to answer.
To assess the impact of amyloid PET on the management of patients meeting Appropriate Use Criteria (AUC)
Test whether amyloid PET imaging will lead to a ≥ 30% change between intended and actual patient management within 90 days in a composite measure of at least one of the following:
- AD drug therapy;
- Other drug therapy; and
- Counseling about safety and future planning.
Measured: 90 days
To assess the impact of amyloid PET on hospital admissions and emergency room visits in patients enrolled in the cohort (amyloid PET-known) compared to matched patients not in the cohort (amyloid PET-naïve) over 12 months
Determine if amyloid PET is associated with a ≥ 10% relative reduction in amyloid PET-known patients in comparison to matched amyloid PET-naïve patients in the following:
- Inpatient hospital admissions over 12 months.
- Emergency room visits over 12 months.
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 posted20 Apr 2015 (estimated)
- Study startFeb 2016
- Primary completionDec 2017
- Study completionDec 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (39)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
- 18,488 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, American College of Radiology Imaging Network
- Responsible party
- Sponsor
- Investigators
- Gil D Rabinovici, MD, Study chair, University of California, San Francisco
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02420756
- Sponsor's protocol ID
- IDEAS Study
- Acronym
- IDEAS
- Status last verified
- Jul 2021
- First submitted
- 15 Apr 2015
- Last updated
- 23 Jul 2021
- Results posted
- No
- Data monitoring committee
- No
Publications
Johnson KA, Minoshima S, Bohnen NI, Donohoe KJ, Foster NL, Herscovitch P, Karlawish JH, Rowe CC, Hedrick S, Pappas V, Carrillo MC, Hartley DM. Update on appropriate use criteria for amyloid PET imaging: dementia experts, mild cognitive impairment, and education. J Nucl Med. 2013 Jul;54(7):1011-3. doi: 10.2967/jnumed.113.127068. Epub 2013 Jun 10.
PubMed 23753186Thies W and Bleiler L. (2013).
Naylor MD, Karlawish JH, Arnold SE, et al. (2012).
Phelan EA, Borson S, Grothaus L, Balch S, Larson EB. Association of incident dementia with hospitalizations. JAMA. 2012 Jan 11;307(2):165-72. doi: 10.1001/jama.2011.1964.
PubMed 22235087Feng Z, Coots LA, Kaganova Y, Wiener JM. Hospital and ED use among Medicare beneficiaries with dementia varies by setting and proximity to death. Health Aff (Millwood). 2014 Apr;33(4):683-90. doi: 10.1377/hlthaff.2013.1179.
PubMed 24711331Fisher GG, Franks MM, Plassman BL, Brown SL, Potter GG, Llewellyn D, Rogers MA, Langa KM. Caring for individuals with dementia and cognitive impairment, not dementia: findings from the aging, demographics, and memory study. J Am Geriatr Soc. 2011 Mar;59(3):488-94. doi: 10.1111/j.1532-5415.2010.03304.x.
PubMed 21391939Clark DO, Stump TE, Tu W, Miller DK, Langa KM, Unverzagt FW, Callahan CM. Hospital and nursing home use from 2002 to 2008 among U.S. older adults with cognitive impairment, not dementia in 2002. Alzheimer Dis Assoc Disord. 2013 Oct-Dec;27(4):372-8. doi: 10.1097/WAD.0b013e318276994e.
PubMed 23151595Schaller S, Mauskopf J, Kriza C, Wahlster P, Kolominsky-Rabas PL. The main cost drivers in dementia: a systematic review. Int J Geriatr Psychiatry. 2015 Feb;30(2):111-29. doi: 10.1002/gps.4198. Epub 2014 Oct 16.
PubMed 25320002Hurd MD, Martorell P, Delavande A, Mullen KJ, Langa KM. Monetary costs of dementia in the United States. N Engl J Med. 2013 Apr 4;368(14):1326-34. doi: 10.1056/NEJMsa1204629.
PubMed 23550670Connell CM, Gallant MP. Spouse caregivers' attitudes toward obtaining a diagnosis of a dementing illness. J Am Geriatr Soc. 1996 Aug;44(8):1003-9. doi: 10.1111/j.1532-5415.1996.tb01881.x.
PubMed 8708288Klein E and Karlawish J. (2013).
Elson P. Do older adults presenting with memory complaints wish to be told if later diagnosed with Alzheimer's disease? Int J Geriatr Psychiatry. 2006 May;21(5):419-25. doi: 10.1002/gps.1485.
PubMed 16676286Carpenter BD, Xiong C, Porensky EK, Lee MM, Brown PJ, Coats M, Johnson D, Morris JC. Reaction to a dementia diagnosis in individuals with Alzheimer's disease and mild cognitive impairment. J Am Geriatr Soc. 2008 Mar;56(3):405-12. doi: 10.1111/j.1532-5415.2007.01600.x. Epub 2008 Jan 5.
PubMed 18194228Knopman DS, DeKosky ST, Cummings JL, Chui H, Corey-Bloom J, Relkin N, Small GW, Miller B, Stevens JC. Practice parameter: diagnosis of dementia (an evidence-based review). Report of the Quality Standards Subcommittee of the American Academy of Neurology. Neurology. 2001 May 8;56(9):1143-53. doi: 10.1212/wnl.56.9.1143.
PubMed 11342678American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision (DSM-IV-TR). 2000.
Study at a glance
From the registry record, last updated by the sponsor on 23 Jul 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) Study: A Coverage With Evidence Development Longitudinal Cohort Study
- ClinicalTrials.gov ID
- NCT02420756
- Acronym / sponsor ID
- IDEAS / IDEAS Study
- Conditions
- Alzheimer's Disease, Dementia, Mild Cognitive Impairment
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 18,488 participants (actual)
- Lead sponsor
- American College of RadiologyUniversity, hospital or other
- Collaborators
- Alzheimer's Association, American College of Radiology Imaging Network
- Study start
- Feb 2016
- Primary completion
- Dec 2017 (actual)
- Study completion
- Dec 2017 (actual)
- First posted
- 20 Apr 2015 (estimated)
- 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.
The Imaging Dementia-Evidence for Amyloid Scanning (IDEAS) Study will establish an open-label, longitudinal cohort study to assess the impact of amyloid PET on patient outcomes. The study will be performed in accordance with the Center for Medicare \& Medicaid Services (CMS) policy of Coverage with Evidence Development (CED) in Medicare beneficiaries who meet the Appropriate Use Criteria (AUC) for amyloid PET (Johnson et al. 2013). Our hypothesis is that amyloid PET will decrease uncertainty and increase confidence in the underlying cause of cognitive impairment, that this will translate into earlier counseling and interventions in these domains, and that these interventions will lead to improved outcomes.
Detailed description
The IDEAS Study is an observational, open-label, longitudinal cohort study designed to assess the impact of amyloid PET on patient-oriented outcomes in Medicare beneficiaries with mild cognitive impairment (MCI) or dementia of uncertain etiology. The study falls under the Centers for Medicare \& Medicaid Services (CMS) Coverage with Evidence Development (CED) policy. A total of 18,488 Medicare beneficiaries meeting Appropriate Use Criteria (AUC) for amyloid PET will be enrolled over 24 months at sites throughout the United States. Dementia specialists will team with PET facilities able to perform amyloid PET and with trained radiologists/nuclear medicine physicians, all of whom will consent to completing the data requirements and timelines for the study. Amyloid PET will be performed and interpreted at each facility with results provided to the ordering physician for support in further clinical decision making, which will be captured for the study.
Our over-arching hypothesis is that, in diagnostically uncertain cases, knowledge of amyloid status as determined by amyloid PET will lead to significant changes in patient management, and that this will translate into improved long-term outcomes. We will pursue two specific aims:
Aim 1 investigates the impact of amyloid PET on short-term patient management, by comparing pre-PET intended management (ascertained in a case report form [CRF] prior to PET) to post-PET actual management 90-days post-PET). The primary objective will be to test whether amyloid PET leads to a ≥ 30% change between intended and actual patient management within 90 days in a cumulative endpoint consisting of: Alzheimer's disease (AD) drug therapy, other drug therapy, and counseling about safety and future planning. Secondary objectives will assess the impact of amyloid PET results on clinical diagnosis and prevention of unnecessary diagnostic procedures and treatments.
Aim 2 utilizes Medicare claims data to compare medical outcomes at 12 months for patients enrolled in the longitudinal cohort (amyloid PET-known) with those for a matched control cohort of patients who have never undergone amyloid PET imaging (amyloid PET-naïve). The primary objective will be to determine if amyloid PET in the amyloid PET-known cohort of patients is associated with a ≥ 10% reduction in hospitalizations and emergency room visits in comparison to the matched amyloid PET-naïve patients. Secondary objectives will examine whether knowledge of amyloid PET status reduces hospitalizations related to ambulatory-sensitive conditions, whether the association between amyloid PET knowledge and health outcomes varies by baseline cognitive status (MCI versus dementia) and amyloid status (amyloid positive versus negative). The amyloid PET-naïve cohort will be identified via a matching algorithm where each individual in the amyloid PET-known cohort will be matched to one individual with similar dementia diagnosis, pre-scan dementia-related resource utilization, age, race, gender, ethnicity, geographic location, and comorbid chronic conditions likely to impact cognition or the outcomes of interest seen at the same time as the amyloid PET-known patient (concurrent control).
In pursuing these Aims, we will generate valuable observational data on clinical utility that will inform future use of this technology in diagnostic algorithms, and develop a cohort of patients who undergo amyloid PET and can serve as a foundation to address future research questions.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 12 Months
Who may qualify
- Ages
- 65 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- 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).
Key inclusion criteria (13 listed)
- 65 and older;
- Medicare beneficiary;
- Diagnosis of MCI or dementia, according to 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;
Key exclusion criteria (9 listed)
- 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);
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| PET ScanAlso: Collection of institutional practice PET imaging data | Device | – |
Primary outcome
To assess the impact of amyloid PET on the management of patients meeting Appropriate Use Criteria (AUC)
Time frame: 90 days
Test whether amyloid PET imaging will lead to a ≥ 30% change between intended and actual patient management within 90 days in a composite measure of at least one of the following: 1. AD drug therapy; 2. Other drug therapy; and 3. Counseling about safety and future planning.
To assess the impact of amyloid PET on hospital admissions and emergency room visits in patients enrolled in the cohort (amyloid PET-known) compared to matched patients not in the cohort (amyloid PET-naïve) over 12 months
Time frame: 12 months
Determine if amyloid PET is associated with a ≥ 10% relative reduction in amyloid PET-known patients in comparison to matched amyloid PET-naïve patients in the following: 1. Inpatient hospital admissions over 12 months. 2. Emergency room visits over 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 23 Jul 2021.
- Background: PubMed 23753186Johnson KA, Minoshima S, Bohnen NI, Donohoe KJ, Foster NL, Herscovitch P, Karlawish JH, Rowe CC, Hedrick S, Pappas V, Carrillo MC, Hartley DM. Update on appropriate use criteria for amyloid PET imaging: dementia experts, mild cognitive impairment, and education. J Nucl Med. 2013 Jul;54(7):1011-3. doi: 10.2967/jnumed.113.127068. Epub 2013 Jun 10.
- BackgroundThies W and Bleiler L. (2013).
- BackgroundNaylor MD, Karlawish JH, Arnold SE, et al. (2012).
- Background: PubMed 22235087Phelan EA, Borson S, Grothaus L, Balch S, Larson EB. Association of incident dementia with hospitalizations. JAMA. 2012 Jan 11;307(2):165-72. doi: 10.1001/jama.2011.1964.
- Background: PubMed 24711331Feng Z, Coots LA, Kaganova Y, Wiener JM. Hospital and ED use among Medicare beneficiaries with dementia varies by setting and proximity to death. Health Aff (Millwood). 2014 Apr;33(4):683-90. doi: 10.1377/hlthaff.2013.1179.
- Background: PubMed 21391939Fisher GG, Franks MM, Plassman BL, Brown SL, Potter GG, Llewellyn D, Rogers MA, Langa KM. Caring for individuals with dementia and cognitive impairment, not dementia: findings from the aging, demographics, and memory study. J Am Geriatr Soc. 2011 Mar;59(3):488-94. doi: 10.1111/j.1532-5415.2010.03304.x.
- Background: PubMed 23151595Clark DO, Stump TE, Tu W, Miller DK, Langa KM, Unverzagt FW, Callahan CM. Hospital and nursing home use from 2002 to 2008 among U.S. older adults with cognitive impairment, not dementia in 2002. Alzheimer Dis Assoc Disord. 2013 Oct-Dec;27(4):372-8. doi: 10.1097/WAD.0b013e318276994e.
- Background: PubMed 25320002Schaller S, Mauskopf J, Kriza C, Wahlster P, Kolominsky-Rabas PL. The main cost drivers in dementia: a systematic review. Int J Geriatr Psychiatry. 2015 Feb;30(2):111-29. doi: 10.1002/gps.4198. Epub 2014 Oct 16.
- Background: PubMed 23550670Hurd MD, Martorell P, Delavande A, Mullen KJ, Langa KM. Monetary costs of dementia in the United States. N Engl J Med. 2013 Apr 4;368(14):1326-34. doi: 10.1056/NEJMsa1204629.
- Background: PubMed 8708288Connell CM, Gallant MP. Spouse caregivers' attitudes toward obtaining a diagnosis of a dementing illness. J Am Geriatr Soc. 1996 Aug;44(8):1003-9. doi: 10.1111/j.1532-5415.1996.tb01881.x.
- BackgroundKlein E and Karlawish J. (2013).
- Background: PubMed 16676286Elson P. Do older adults presenting with memory complaints wish to be told if later diagnosed with Alzheimer's disease? Int J Geriatr Psychiatry. 2006 May;21(5):419-25. doi: 10.1002/gps.1485.
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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 D Rabinovici, MD study chair
University of California, San Francisco
2 sites 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 2 sites 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: finished, as of the sponsor's last update on 23 Jul 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites 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?
To assess the impact of amyloid PET on the management of patients meeting Appropriate Use Criteria (AUC) (time frame: 90 days). The study lists 2 primary outcomes in all. 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 NCT02420756, which also lists 39 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 23 Jul 2021.