A Study to Collect Blood and/or Cerebrospinal Fluid from Patients with Symptoms of Cognitive Decline


  • Study type

  • Study IDs

  • 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.
  • Site IRB
    • Scottsdale/Phoenix, Arizona: 14-008840
    Sponsor Protocol Number: 14-008840

About this study

The goal of this study is to establish and maintain a neurology disease biospecimen bank containing samples of blood and/or cerebral spinal fluid  from patients with symptoms of cognitive decline as well as patients with symptoms of Parkinson’s disease.

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 at least 18 years
  • Has symptoms of cognitive decline
  • Has symptoms of Parkinson’s disease
  • Willing to provide clinical data and/or blood and/or cerebral spinal fluid sample(s)

Participating Mayo Clinic locations

Study statuses change often. Please contact us for help.

Mayo Clinic Location Status Contact

Scottsdale/Phoenix, Ariz.

Mayo Clinic principal investigator

Richard Caselli, M.D.

Open for enrollment

Contact information:

Shanann Avelar