Transcranial Direct Current Stimulation for Cognitive Improvement in Parkinson's Patients
tDCS
1 other identifier
interventional
40
1 country
1
Brief Summary
The investigators hypothesize that multi-session anodal tDCS (atDCS) of the left dorsolateral prefrontal cortex (LDLPFC) will induce long-lasting effects in improving cognitive function and reducing cognitive fatigue and fatigability in PD patients.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable parkinson-disease
Started Oct 2015
Longer than P75 for not_applicable parkinson-disease
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
October 19, 2015
CompletedFirst Submitted
Initial submission to the registry
April 28, 2017
CompletedFirst Posted
Study publicly available on registry
June 19, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 7, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
August 31, 2025
CompletedMarch 4, 2025
February 1, 2025
9.8 years
April 28, 2017
February 27, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change in Reaction Time (RT) on contextual cueing computer task
A visual search task will be given in which the participant looks for a T among L's. The contextual cuing task will consist of a practice block and forty test blocks. Eight of the trials in a block will consist of search configurations that repeat from block to block (repeat configurations); the other eight trials in a block will be randomly-generated configurations (new configurations). After the final trial, a recognition task will be presented to determine whether participants realized that repeat configurations were presented (not expected; cueing effects appear to result from implicit learning). Reaction time for each block will be recorded, with cognitive fatigue measured as deterioration of RT over the 40 blocks. This measure of change in RT will be compared across the 4 visits (pre-test, 6th visit, 7th visit, and 8th visit). Improved cognition fatigue based on tDCS treatment would predict reduced change in RT in the later visits compared to the pre-test.
90 minutes; pre-test during the second research visit, post-test on 6th research visit after 5 consecutive days of tDCS, a follow up test on the 7th research visit, 7 days after last tDCS session and 8th visit 14 days after last tDCS session
Secondary Outcomes (6)
Change in Error Rate on contextual cueing computer task
90 minutes; pre-test during the second research visit, post-test on 6th research visit after 5 consecutive days of tDCS, a follow up test on the 7th research visit, 7 days after last tDCS session and 8th visit 14 days after last tDCS session
Multidimensional Fatigue Inventory (MFI)
5 minutes; pre-test during the second research visit, post-test on 6th research visit after 5 consecutive days of tDCS, a follow up test on the 7th research visit, 7 days after last tDCS session and 8th visit 14 days after last tDCS session
Center for Epidemiological Studies Depression Scale (CES-D)
5 minutes; pre-test during the second research visit, post-test on 6th research visit after 5 consecutive days of tDCS, a follow up test on the 7th research visit, 7 days after last tDCS session and 8th visit 14 days after last tDCS session
McGill Quality of Life (QOL) Scale
1 minute; pre-test during the second research visit, post-test on 6th research visit after 5 consecutive days of tDCS, a follow up test on the 7th research visit, 7 days after last tDCS session and 8th visit 14 days after last tDCS session
Neuropsychological battery (Stroop and Digit Span)
10 minutes; pre-test during the second research visit, post-test on 6th research visit after 5 consecutive days of tDCS, a follow up test on the 7th research visit, 7 days after last tDCS session and 8th visit 14 days after last tDCS session
- +1 more secondary outcomes
Study Arms (2)
Experimental group
EXPERIMENTALThe experimental group will receive 2 milliamps of anodal transcranial direct current stimulation for 20 minutes daily for 5 days.
Sham group
SHAM COMPARATORThe sham group will be connected to the anodal transcranial direct current stimulation device daily for 5 days. During the 20 minute sessions, the participant will only receive stimulation for a 30-second ramp up period, at which point the stimulation will be discontinued for the remainder of the time.
Interventions
2milliamps will be administered for 5 consecutive days for a duration of 20 minutes with electrode placement at the left dorsolateral prefrontal cortex.
For 30 seconds the patient will experience a ramp up of the stimulation, after which point no stimulation will be transmitted for the remainder of the session. This will be administered for 5 consecutive days for a duration of 20 minutes with electrode placement at the left dorsolateral prefrontal cortex.
Eligibility Criteria
You may qualify if:
- Clinical diagnosis of PD with at least two of the four diagnostic criteria for PD (tremor, rigidity, bradykinesia, and postural instability)
- Meets criteria for MCI (21 ≤ MOCA scores ≤ 26)
- Must be able to consent
You may not qualify if:
- Patients with dementia (MOCA \< 21)
- PD treatment using deep brain stimulation (DBS)
- Diagnosis of psychosis
- Diagnosis of multiple sclerosis
- Diagnosis of stroke
- Diagnosis of epilepsy
- Diagnosis of chronic obstructive pulmonary disease
- Diagnosis of congestive heart failure
- Diagnosis of renal failure
- Participants not fluent in English
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sanford Healthlead
Study Sites (1)
Sanford Brain & Spine Center
Fargo, North Dakota, 58103, United States
Related Publications (5)
Boggio PS, Ferrucci R, Rigonatti SP, Covre P, Nitsche M, Pascual-Leone A, Fregni F. Effects of transcranial direct current stimulation on working memory in patients with Parkinson's disease. J Neurol Sci. 2006 Nov 1;249(1):31-8. doi: 10.1016/j.jns.2006.05.062. Epub 2006 Jul 14.
PMID: 16843494BACKGROUNDBrunoni AR, Nitsche MA, Bolognini N, Bikson M, Wagner T, Merabet L, Edwards DJ, Valero-Cabre A, Rotenberg A, Pascual-Leone A, Ferrucci R, Priori A, Boggio PS, Fregni F. Clinical research with transcranial direct current stimulation (tDCS): challenges and future directions. Brain Stimul. 2012 Jul;5(3):175-195. doi: 10.1016/j.brs.2011.03.002. Epub 2011 Apr 1.
PMID: 22037126BACKGROUNDLou JS, Kearns G, Oken B, Sexton G, Nutt J. Exacerbated physical fatigue and mental fatigue in Parkinson's disease. Mov Disord. 2001 Mar;16(2):190-6. doi: 10.1002/mds.1042.
PMID: 11295769BACKGROUNDMeinzer M, Jahnigen S, Copland DA, Darkow R, Grittner U, Avirame K, Rodriguez AD, Lindenberg R, Floel A. Transcranial direct current stimulation over multiple days improves learning and maintenance of a novel vocabulary. Cortex. 2014 Jan;50:137-47. doi: 10.1016/j.cortex.2013.07.013. Epub 2013 Aug 6.
PMID: 23988131BACKGROUNDNitsche MA, Paulus W. Excitability changes induced in the human motor cortex by weak transcranial direct current stimulation. J Physiol. 2000 Sep 15;527 Pt 3(Pt 3):633-9. doi: 10.1111/j.1469-7793.2000.t01-1-00633.x.
PMID: 10990547BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jau-Shin Lou, MD
Sanford Health
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, CARE PROVIDER
- Masking Details
- The participant and their care provider will be blinded as to which intervention is being used.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 28, 2017
First Posted
June 19, 2017
Study Start
October 19, 2015
Primary Completion
August 7, 2025
Study Completion
August 31, 2025
Last Updated
March 4, 2025
Record last verified: 2025-02
Data Sharing
- IPD Sharing
- Will not share