Imaging of Brain Amyloid Plaques in the Aging Population

  • Study type:

    Interventional What is this?

    Describes the nature of a clinical study. Types include:

    • Observational study — observes people and measures outcomes without affecting results.
    • Interventional study (clinical trial) — studies new tests, treatments, drugs, surgical procedures or devices.
    • Medical records research — uses historical information collected from medical records of large groups of people to study how diseases progress and which treatments and surgeries work best.
  • Study phase:

    IV What is this?

    During the early phases (phases 1 and 2), researchers assess safety, side effects, optimal dosages and risks/benefits. In the later phase (phase 3), researchers study whether the treatment works better than the current standard therapy. They also compare the safety of the new treatment with that of current treatments. Phase 3 trials include large numbers of people to make sure that the result is valid. There are also less common very early (phase 0) and later (phase 4) phases. Phase 0 trials are small trials that help researchers decide if a new agent should be tested in a phase 1 trial. Phase 4 trials look at long-term safety and effectiveness, after a new treatment has been approved and is on the market.

Study IDs

  • Site IRB:

    • Rochester, Minnesota: 08-005553
  • NCT ID:

  • Sponsor Protocol Number:


About this study

This is a prospective, open label, non-therapeutic, diagnostic imaging study. The purpose of this study is to utilize Pittsburgh Compound B positron emission imaging (PiB PET) to ascertain the relationship between change in amyloid burden over time, and concurrent change in clinical status.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. If you need assistance understanding the eligibility criteria, please contact the study team.

See eligibility criteria

Inclusion Criteria:

  • Age 40-100
  • Subjects who have completed or are scheduled to undergo the neurological evaluation procedures in the Mayo Clinic Study of Aging, Mayo ADRC, or Mayo neurodegenerative disease clinics.

Exclusion Criteria:

  • Subjects unable to lie down without moving for 10 minutes
  • Women who are pregnant or cannot stop breast feeding for 24 hours
  • Claustrophobic patients unable to tolerate the scans
  • Standard safety exclusionary criteria for MRI such as metallic foreign bodies, pacemaker, etc.

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Val Lowe, M.D.

Closed-enrolling by invitation

Paul Lewis