NCT00790634

Brief Summary

The purpose of this study is to characterize and compare irregularities in dopaminergic function in fronto-subcortical circuits, between Parkinson's Disease patients (ON and OFF medication) and patients with obsessive-compulsive disorder, by examining performance on cognitive tasks involving cognitive flexibility, decision-making, and attentional bias.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
100

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Dec 2008

Typical duration for all trials

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

First Submitted

Initial submission to the registry

November 12, 2008

Completed
1 day until next milestone

First Posted

Study publicly available on registry

November 13, 2008

Completed
18 days until next milestone

Study Start

First participant enrolled

December 1, 2008

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2011

Completed
Last Updated

November 13, 2008

Status Verified

November 1, 2008

Enrollment Period

3 years

First QC Date

November 12, 2008

Last Update Submit

November 12, 2008

Conditions

Study Arms (4)

Parkinson's Disease

Patients with idiopathic Parkinson's disease

Obsessive-compulsive disorder

Individuals with a diagnosis of obsessive-compulsive disorder

OCD controls

Healthy controls, matched in age and number to obsessive-compulsive group

PD controls

Healthy controls, matched in age and number to Parkinson's disease group

Eligibility Criteria

Age16 Years - 85 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

private and hospital-based clinics, healthy volunteers

You may qualify if:

  • idiopathic PD or
  • OCD
  • for control group - age-matched to study groups

You may not qualify if:

  • psychotic symptoms (past or present)
  • head injury with loss of consciousness
  • other neurological conditions (excepting PD in PD group)
  • for OCD group - use of dopaminergic medications

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Parkinson DiseaseObsessive-Compulsive Disorder

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative DiseasesAnxiety DisordersMental Disorders

Central Study Contacts

Sharon Hassin, MD

CONTACT

Sari Meril, M.Sc

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER GOV

Study Record Dates

First Submitted

November 12, 2008

First Posted

November 13, 2008

Study Start

December 1, 2008

Primary Completion

December 1, 2011

Study Completion

December 1, 2011

Last Updated

November 13, 2008

Record last verified: 2008-11