Cognitive Dysfunction in Parkinson's Disease
Cortical Physiology as a Therapeutic Target in Parkinson's Disease Related Dementia and Cognitive Dysfunction
2 other identifiers
interventional
49
1 country
1
Brief Summary
This study plans to learn more about the brain function related to thinking problems in individuals with Parkinson's disease.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jan 2014
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2014
CompletedFirst Submitted
Initial submission to the registry
January 9, 2015
CompletedFirst Posted
Study publicly available on registry
January 27, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2020
CompletedResults Posted
Study results publicly available
December 9, 2020
CompletedFebruary 9, 2021
January 1, 2021
4.9 years
January 9, 2015
April 6, 2020
January 21, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in Magnetoencephalography (MEG) Connectivity Measures
Our MEG outcome will be a change in small-worldness, global efficiency, nodal efficiency and degree distribution pre-TMS to immediately post-TMS treatment.
2 weeks
Secondary Outcomes (1)
Post-TMS Change From Baseline in Cognitive Scores
2 weeks
Study Arms (2)
Real TMS
EXPERIMENTALTMS will be administered using a 70-mm diameter air-cooled figure-of-8 coil and SuperRapid2 Magstim Stimulator. Repetitive pulses will be delivered to the right and left pre-frontal cortex (Brodmann area 46) using a frameless stereotactic navigation system and the subject's magnetic resonance imaging (MRI) in Brainsight software. Stimuli will be delivered at 20 Hz at 90% resting motor threshold (rMT) for 25 trains of 30 pulses per train, inter-train interval of 30 seconds for a total of 750 pulses per hemisphere. This dose and duration of repetitive TMS (rTMS) is based on physiological studies of healthy adults and treatment studies of cognition in PD and Alzheimer's disease.52, 123 Side of first stimulation (left vs right hemisphere) will be counterbalanced across subjects.
Sham TMS
SHAM COMPARATORSham stimulation will be delivered using a sham coil fitted with electrodes to mimic both the auditory and somatic sensation of real TMS.
Interventions
Eligibility Criteria
You may qualify if:
- Diagnosis of probable PD (using United Kingdom Brain Bank criteria)
- Diagnosis of mild cognitive impairment
- No unstable medical condition
You may not qualify if:
- Features suggestive of other causes of Parkinsonism or other neurological disorders
- Prior deep brain stimulation (DBS) or ablation surgery
- Evidence for active depression or Hospital Anxiety and Depression Scale (HADS) score greater than or equal to 11
- Motor symptoms expected to interfere with scanning (e.g. sever tremor)
- Contraindications to TMS, MEG, or MRI such as pregnancy, pacemaker, unstable cardiac disease, skull lesion, claustrophobia, history of epilepsy, or on medications known to lower seizure threshold
- Implanted electronic devices or metal
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
University of Colorado School of Medicine
Aurora, Colorado, 80045, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
Our specialized MEG data analyst working on the Primary outcome has encountered a Covid-related family emergency, which has delayed the analysis process.
Results Point of Contact
- Title
- Isabelle Buard, PhD
- Organization
- University of Colorado Denver - Anschutz Medical Campus
Study Officials
- PRINCIPAL INVESTIGATOR
Benzi M Kluger, MD, MS
University of Colorado School of Medicine
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
January 9, 2015
First Posted
January 27, 2015
Study Start
January 1, 2014
Primary Completion
December 1, 2018
Study Completion
December 1, 2020
Last Updated
February 9, 2021
Results First Posted
December 9, 2020
Record last verified: 2021-01
Data Sharing
- IPD Sharing
- Will share
De-identified data will be made available to the scientific community upon request.