NCT00817726

Brief Summary

  • Purpose - to validate a combination of biological and clinical markers in the rapid-eye-movement (REM) sleep behavior disorder (RBD) population as indicative of the pre-symptomatic stage of Parkinson's disease (PD).
  • Procedures - All subjects (RBD diagnosis and controls) will have 1) a medical and neuro history and physical including videotape of movements, 2) neuropsychological testing, 3) a sleep study, 4) olfactory testing, 5) blood draw for serum testing , 6) functional MRI. All of these procedures are often performed clinically in the diagnosis of PD. Enrollment of subjects with PD is complete. Any testing performed prior to enrollment as part of the clinical evaluation may be used in place of repeating the procedure for the study. Subjects will be followed for 5 years. It is hypothesized that a 5 year follow up may capture a significant number of pre-Parkinson's subjects who will be diagnosed. Subjects may be offered a repeat enrollment after 5 years.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
164

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jan 2009

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

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

January 1, 2009

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

January 5, 2009

Completed
1 day until next milestone

First Posted

Study publicly available on registry

January 6, 2009

Completed
15.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2024

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2025

Completed
Last Updated

November 29, 2023

Status Verified

November 1, 2023

Enrollment Period

15.9 years

First QC Date

January 5, 2009

Last Update Submit

November 28, 2023

Conditions

Keywords

Rapid Eye Movement Sleep Behavior DisorderParkinson's DiseaseParkinsonian SyndromesAtypical Parkinson'sRBDPDfMRIPSPMSA

Outcome Measures

Primary Outcomes (1)

  • Identify the key cognitive and non-motor characteristics for early PD diagnosis

    periodically performed set of clinical and imaging parameters suspected to be linked to PD to see if, as a group, these parameters could identify those at risk for motor symptoms of PD before these symptoms develop.

    5 years

Secondary Outcomes (3)

  • Further characterize the sleep behavior patterns, olfactory function, and neurologic assessments of subjects longitudinally, over 5 years, within each group of patients.

    5 years

  • functional MRI of the brain and eye tracking testing, identification of distinct features in PD

    beginning of study and at 2 years

  • identify key fluid-based PD-associated molecular markers that identify disease state or progression

    5 years

Study Arms (2)

1- RBD

polysomnographically diagnosed RBD patients. RBD is a sleep disorder diagnosed by a sleep lab in which the individual has muscle movements during the phase of deep sleep during which the muscles should be relaxed. Suspicion of RBD by history will be confirmed during screening.

2 - control

control: * must not have any neurological degenerative diagnosis. * must NOT have RBD. * must be able to age and/or gender-match to RBD and PD subjects already enrolled.

Eligibility Criteria

Age35 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with polysomnographically-documented RBD, non-neurodegenerative diagnosis Age and gender matched non-RBD diagnosis, non-neurodegenerative diagnosis idiopathic PD diagnosis atypical PD diagnosis

You may qualify if:

  • year old men \& women
  • (1) Diagnosis of idiopathic RBD (see AASM criteria), 2) Normal control or control with a non-neurodegenerative disorder, age and gender-matched to (1)
  • Gives written informed consent
  • Pregnant women are not excluded, but will be identified by HCG.

You may not qualify if:

  • a A diagnosis of any non-Parkinsonian Neurodegenerative Disease.
  • b. Any unstable or uncontrolled medical or psychiatric condition.
  • c. Parasomnia or RBD not idiopathic, eg., secondary to metabolic derangement or medicine effect.
  • d. Renal (creatinine over 1.6) or hepatic insufficiency (LFT significantly out of range), or a history of significant uncontrolled cardiac disease.
  • e. Significant dementia (MMSE\<25 of 30 or MOCA\<25/30) that would interfere with study procedures or informed consent.
  • f. Any reason which, in the opinion of the PI, would increase the risk or decrease the value of any study procedure.
  • g. fMRI will not be performed for anyone for whom the screening questionnaire indicates is ineligible for MRI imaging.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of texas Health Science Center at Houston

Houston, Texas, 77030, United States

Location

Biospecimen

Retention: SAMPLES WITH DNA

blood (serum)

MeSH Terms

Conditions

REM Sleep Behavior DisorderParkinson DiseaseParkinsonian Disorders

Condition Hierarchy (Ancestors)

REM Sleep ParasomniasParasomniasSleep Wake DisordersNervous System DiseasesMental DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Study Officials

  • Mya C Schiess, MD

    The University fo texas Health Science Center at Houston

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor - Neurology

Study Record Dates

First Submitted

January 5, 2009

First Posted

January 6, 2009

Study Start

January 1, 2009

Primary Completion

December 1, 2024

Study Completion

May 1, 2025

Last Updated

November 29, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations