Clinical trial Recruiting at 1 site Observational Ages 18 and up

Using a new imaging agent to study Alzheimer's disease

Official title: Beta Amyloid PET Imaging for Alzheimer Disease: [18F]-Fluselenamyl (Alternative Vehicle) Comparison With [11C]-PIB (FSA-PIB AD)

Run by Washington University School of Medicine · NCT06439992 · Data updated 2026-11-12

This study is testing a new imaging agent to see how well it can help visualize Alzheimer's disease and its effects on the brain in both healthy people and those with mild cognitive impairment.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment60 (estimated)
SponsorWashington University School of Medicine
Academic / other
Drugs / interventionsradiation
Locations1 site (St Louis, Missouri)
StatusRecruiting
StartedNovember 7, 2023
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedJune 9, 2026
Trial IDNCT06439992 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include healthy adults and individuals diagnosed with Alzheimer's disease aged 18 and older.

Probably not a fit

Patients with hypersensitivity to the imaging agents or those unable to undergo PET scans or MRIs may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This research aims to assess the safety of the radiotracer 18F-Fluselenamyl through positron emission tomography (PET) imaging. Initially, whole-body PET dosimetry studies will be conducted in healthy volunteers to determine the radiation dose for human subjects. Following this, brain and neck imaging will be performed on both healthy participants and those with mild cognitive impairment to evaluate the uptake of 18F-Fluselenamyl and its binding to beta-amyloid plaques. The study will also compare the imaging results between normal controls and Alzheimer's disease patients.

Why it matters

Potential benefit: If successful, this study could enhance the understanding of Alzheimer's disease and improve diagnostic imaging techniques.

How similar studies have gone: Previous studies using similar PET imaging approaches have shown promise in characterizing amyloid plaque deposition in Alzheimer's disease.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or Female, any race
* Age ≥ 18 years
* Healthy volunteers or volunteers with Alzheimer's disease

Exclusion Criteria:

* Has hypersensitivity to 18F-Fluselenamyl or any of its excipients ;
* Has hypersensitivity to 11C-PIB or any of its excipients ;
* Incapable of providing written informed consent or lacking a legally authorized representative (LAR) to provide informed consent ;
* Unwilling or unable to undergo PET scans tracer injections ;
* Unwilling or unable to undergo MRI (Aim 2 and Aim 3)
* Any condition that, in the Investigator's opinion, could increase the risk to the participant, limit the participant's ability to tolerate the research procedures, or interfere with the collection/analysis of the data (e.g., renal or liver failure, advanced cancer);
* Women who are currently pregnant or breast-feeding;
* Current or recent (within 12 months prior to screening) participation in research studies involving radioactive agents such that the total research-related radiation dose to the participant in any given year would exceed the limits set forth in the U.S. Code of Federal Regulations (CFR) Title 21 Section 361.1.

Where it's running

  • Washington University School of Medicine
    St Louis, Missouri, United States
    Recruiting

Study contacts

  • Principal investigator: Tammie Benzinger, MD., PhD — Washington University School of Medicine
  • Study coordinator: Jayashree Rajamanickam
  • Email: jayashree.r@wustl.edu
  • Phone: 314 273 6140

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.