NCT05495997

Brief Summary

The purpose of this research study is to determine whether cognitive training will improve cognitive and brain functions in people with Parkinson's Disease (PD) during activities of daily living using cognitive evaluations and magnetic resonance imaging (MRI).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
30

participants targeted

Target at P25-P50 for not_applicable parkinson-disease

Timeline
Completed

Started Jan 2023

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

First Submitted

Initial submission to the registry

August 8, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

August 10, 2022

Completed
5 months until next milestone

Study Start

First participant enrolled

January 13, 2023

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 18, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 18, 2024

Completed
10 months until next milestone

Results Posted

Study results publicly available

July 17, 2025

Completed
Last Updated

August 11, 2025

Status Verified

July 1, 2025

Enrollment Period

1.7 years

First QC Date

August 8, 2022

Results QC Date

June 5, 2025

Last Update Submit

July 23, 2025

Conditions

Outcome Measures

Primary Outcomes (2)

  • Change in Quality of Life in Neurological Disorders Cognitive Function Version 2 (Neuro-QoL CF v2) T-scores at 6 Weeks

    Neuro-QoL CF v2 measures self-reported levels of cognitive functioning. Raw scores are converted to standardized T-scores (mean of 50 with a standard deviation of 10). Increase in T-scores from baseline indicates improvement in everyday cognitive functioning.

    Baseline and 6 weeks

  • Change in Neuro-QoL CF v2 T-scores at 18 Weeks

    Neuro-QoL CF v2 measures self-reported levels of cognitive functioning. Raw scores are converted to standardized T-scores (mean of 50 with a standard deviation of 10). Increase in T-scores from baseline indicates improvement in everyday cognitive functioning.

    18 weeks

Secondary Outcomes (2)

  • Change in Composite Executive Function T-scores at 6 Weeks

    6 weeks

  • Change in Composite Executive Function T-scores at 18 Weeks

    18 weeks

Study Arms (2)

Mental Imagery

EXPERIMENTAL
Behavioral: Mental Imagery Training

Psychoeducation

ACTIVE COMPARATOR
Behavioral: Psychoeducation

Interventions

Participants will practice mental imagery of everyday tasks daily for 6 weeks.

Mental Imagery
PsychoeducationBEHAVIORAL

Participants will receive psychoeducation on cognition and brain health.

Psychoeducation

Eligibility Criteria

Age40 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of idiopathic PD
  • Age ≥ 40 years
  • Expected to be on a stable dopaminergic medication regimen throughout the study period

You may not qualify if:

  • Non-English speaking
  • Pregnancy
  • Breastfeeding
  • Excessive alcohol consumption (\> 7 drinks per week for women, \> 14 drinks per week for men) or illicit substance use
  • History of a neurological disorder such as a brain tumor, stroke, central nervous system infection, multiple sclerosis, movement disorder (other than PD), or seizures
  • History of schizophrenia, bipolar disorder, attention deficit disorder, or obsessive-compulsive disorder
  • History of head injury with loss of consciousness longer than a few minutes
  • Metallic surgical implants or traumatically implanted metallic foreign bodies
  • Inability to lie flat for about an hour in the MRI scanner
  • Discomfort being in small, enclosed spaces
  • Dementia at screening (Montreal Cognitive Assessment score \< 21/30)
  • Cognitive problems in activities of daily living suggestive of more than mild cognitive impairment (PD Cognitive Functional Rating Scale \> 4)
  • Mild cognitive impairment according to the Movement Disorders Society (MDS) Level II comprehensive assessment criteria (\> 1.5 standard deviations below the norm in two tests in a single cognitive domain or in one test in two separate cognitive domains, with the exception that the executive domain scores can be up to 2 standard deviations below the norm)
  • Hoehn \& Yahr stage \> 3 (i.e., able to stand and walk, but not fully independent)
  • Focal neurological findings on exam that suggest cerebral pathology other than that associated with parkinsonism
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Yale School of Medicine

New Haven, Connecticut, 06510, United States

Location

Related Publications (2)

  • Cherry J, Nelson AM, Robinson LA, Goldstein J, Vives-Rodriguez A, Sharp E, Tinaz S. Feasibility and potential effects of mental imagery training on subjective cognitive function and brain connectivity in people with Parkinson's disease: A randomized pilot trial. Neuropsychol Rehabil. 2026 Jan 3:1-28. doi: 10.1080/09602011.2025.2608220. Online ahead of print.

  • Cherry J, Nelson AM, Robinson LA, Goldstein J, Vives-Rodriguez A, Sharp E, Tinaz S. Effects of mental imagery training on cognitive function and brain connectivity in people with Parkinson's disease: A randomized pilot trial. medRxiv [Preprint]. 2025 Mar 15:2025.03.14.25324001. doi: 10.1101/2025.03.14.25324001.

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

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

Results Point of Contact

Title
Sule Tinaz
Organization
Yale School of Medicine

Study Officials

  • Sule Tinaz, MD, PhD

    Yale University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 8, 2022

First Posted

August 10, 2022

Study Start

January 13, 2023

Primary Completion

September 18, 2024

Study Completion

September 18, 2024

Last Updated

August 11, 2025

Results First Posted

July 17, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will share

This study will produce unique clinical, cognitive, behavioral, and imaging datasets obtained from subjects with mild-to-moderate Parkinson's disease at baseline and at two time points - immediate and delayed - post-intervention. The de-identified datasets will be made available for research purposes to qualified individuals within the scientific community upon request.

Shared Documents
STUDY PROTOCOL, SAP, CSR, ANALYTIC CODE
Time Frame
Beginning 9 months and ending 36 months following article publication.

Locations