NCT01565473

Brief Summary

This research plan is focused on neurochemical positron emission tomography (PET) studies of Parkinson disease (PD). PD is the most common neurodegenerative movement disorder, and considerable progress has been made in understanding and treating the "typical" movement abnormalities of resting tremor, bradykinesia and rigidity. These cardinal PD features are all initially responsive to dopamine replacement therapy, and have been investigated intensively with respect to their relationships to degeneration of the nigrostriatal dopamine projection. More recently, increased attention has focused on the "non-motor" clinical aspects of PD, including cognitive, mood, chronobiological and peripheral autonomic defects. These clinical features are less reliably affected by dopaminergic therapy, and are likely to be associated with other, non-dopaminergic neural degenerations. Indeed, detailed postmortem assessments of PD brain reveal substantial neuronal losses in a variety of chemically-defined neurons, including brainstem serotonin and norepinephrine neurons and basal forebrain cholinergic neurons. Projects in the proposal will focus on dementia, depression, sleep-apnea and dysautonomia in PD patients, employing PET measures of presynaptic dopaminergic, serotoninergic and cholinergic CNS neurons and of peripheral sympathetic neurons. Results of the investigations may identify associations of non-motor PD signs and symptoms with the non-dopaminergic neuronal losses. These findings will establish additional therapeutic targets for symptomatic, but also for potential neuroprotective PD therapies. In addition, a majority of patients will be characterized with all 3 CNS PET measures. The availability of multiple markers of distinct neuronal populations involved in PD neurodegeneration will permit exploratory analyses to assess whether the degenerations are correlated (possibly manifestations of a common pathophysiology) or apparently independent (possibly a manifestation of multiple PD subtypes or pathophysiologies). Ultimately, better understanding of these non-motor features will be essential to developing future treatments that address the entire PD patient.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
242

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Sep 2008

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 1, 2008

Completed
3.6 years until next milestone

First Submitted

Initial submission to the registry

March 26, 2012

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 28, 2012

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2014

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2014

Completed
Last Updated

December 2, 2014

Status Verified

December 1, 2014

Enrollment Period

5.8 years

First QC Date

March 26, 2012

Last Update Submit

December 1, 2014

Conditions

Keywords

non-motor symptoms

Outcome Measures

Primary Outcomes (1)

  • To asses the non-motor aspects of PD

    The non-motor aspects that were studied included, sleep disorders, depression, memory, and autonomic system symptom.

    at initial visit and at 2 years for memory (PIB) and autonomic system symptoms (DTBZ and HED)

Study Arms (2)

Parkinson disease patients

Healthy normal controls

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Movement Disorders Clinic, Hospital, Primary Care, Community

You may qualify if:

  • age 50 and above (40 for Normal Control population)
  • diagnosed with PD
  • Hoehn \& Yahr 1-4,

You may not qualify if:

  • other disorders which may resemble PD
  • unstable medical conditions
  • significant neurological or psychiatric disorders
  • taking certain medications such as acetylcholinesterase inhibitors, neuroleptics, psychostimulants, tricyclic antidepressants,
  • contraindication to MRI (pacemakers, metal in eye, etc)
  • recent exposure to significant amount of ionizing radiation
  • pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Michigan Health System

Ann Arbor, Michigan, 48109, United States

Location

Related Publications (1)

  • Zhou Z, Muller MLTM, Kanel P, Chua J, Kotagal V, Kaufer DI, Albin RL, Frey KA, Bohnen NI. Apathy rating scores and beta-amyloidopathy in patients with Parkinson disease at risk for cognitive decline. Neurology. 2020 Jan 28;94(4):e376-e383. doi: 10.1212/WNL.0000000000008683. Epub 2019 Nov 15.

Biospecimen

Retention: SAMPLES WITH DNA

Whole blood Saliva

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • Nicolaas Bohnen, M.D., Ph.D.

    University of Michigan

    STUDY DIRECTOR
  • Kirk Frey, M.D., Ph.D.

    University of Michigan

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
M.D., Ph.D.

Study Record Dates

First Submitted

March 26, 2012

First Posted

March 28, 2012

Study Start

September 1, 2008

Primary Completion

July 1, 2014

Study Completion

July 1, 2014

Last Updated

December 2, 2014

Record last verified: 2014-12

Locations