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PSPAND1NCT04680130

Clinico-Pathologic-Genetic-Imaging Study of Neurodegenerative and Related Disorders

An observational study of PSP and CBD, run by Mayo Clinic at 1 site in United States.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The investigators aim to learn more about symptoms suggestive of a neurodegenerative process. Read more about this study

Who is it for?
Ages 21 years and older
Conditions the study is for
PSP, CBD, PCA
What is being tested?
C-11 PiB, AV1451 Tau and C-11 ER176
How many people
500 participants
Where
1 siteUnited States
Study dates
1 Nov 2020to Nov 2050
Phase
Observational
Are there results?
Not yet: the study is under way

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 21 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Symptoms of neurodegenerative disease

Who may be able to join

  • All participants will be over the age of 21
  • Have symptoms suggestive of a neurodegenerative and/or related disorder

Who cannot join

  • Participants will be excluded if they have any concurrent illnesses that could account for all of their symptoms, such as traumatic brain injury, encephalitis, strokes or developmental syndromes
  • Women that are pregnant or post-partum and breast-feeding will be excluded
  • Participants will be excluded if they have any of the following genetic conditions which can increase the chance of cancer: Cowden disease, Lynch syndrome, Hypogammaglobulinemia, Wiskott-Aldrich syndrome and Down's syndrome
  • Participants will be excluded if MRI is contraindicated (metal in head, cardiac pace maker, etc), if there is severe claustrophobia, if there are conditions that may confound brain imaging studies (e.g. structural abnormalities, including subdural hematoma, intracranial neoplasm or large cortical infarcts)
  • Participants will be excluded if they are medically unstable or are on medications that might affect brain structure or metabolism (e.g. chemotherapy)

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United States1 site
  • Mayo Clinic

    Rochester, Minnesota, 55905

Other trials in United States

About this study

The investigators aim to learn more about symptoms suggestive of a neurodegenerative process.

Read the detailed description

The investigators will recruit participants with symptoms suggestive of a neurodegenerative and/or related disease. Participants could be evaluated on a yearly basis, undergoing a baseline visit and possible follow-up evaluations with an interval of one year. At each visit, participants could undergo any combination of the following based on their symptoms and complaints: a neurological assessment, a speech/language assessment, a neuropsychometric assessment, an MRI, an FDG PET/CT scan, a PiB PET/CT scan, a Tau PET/CT scan and/or a C-11 ER176 PET/CT scan. All participants will be asked to provide a blood sample to allow for future genetic studies.

Being tested
C-11 PiB, AV1451 Tau, C-11 ER176
Medical subject headings
Frontotemporal Dementia, Aphasia, Pick Disease of the Brain, Apraxias, Shy-Drager Syndrome, Parkinson Disease

What participants receive

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

  • C-11 PiBDrug

    Completing PET scan looking for amyloid protein

  • AV1451 TauDrug

    Completing PET scan looking for tau protein

  • C-11 ER176Drug

    Completing PET scan looking for neuroinflammation

Study groups in NCT04680130
Study groupRoleWhat they receive
Neurodegenerative symptomsNot described
Receives: Drug: C-11 PiB; Drug: AV1451 Tau; Drug: C-11 ER176

What is being measured

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

  1. Imaging analysis

    Longitudinal images and correlates will be measured and tracked to determine direct correlations in the brain with disease progression on a yearly basis

    Measured: 1 year

Timeline

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

  1. First posted22 Dec 2020
  2. Study start1 Nov 2020
  3. Primary completionNov 2050 (estimated)
  4. Study completionNov 2050 (estimated)

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
500 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04680130
Sponsor's protocol ID
19-009999
Acronym
AND1
Status last verified
Nov 2025
First submitted
3 Nov 2020
Last updated
21 Nov 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of PSP and CBD, run by Mayo Clinic 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 2 inclusion and 5 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: enrolling by invitation, as of the sponsor's last update on 21 Nov 2025. 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?

This study is still under way. Results are not available in the source record yet.

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?

Imaging analysis (time frame: 1 year). 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 21 Nov 2025; AzTrials last refreshed its copy on 26 Oct 2026.

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