Study Stopped
Funding stopped
Transcranial Direct Current Stimulation Therapy for Sleepiness Related to Shift Work Disorder (tDCS-SWORD)
tDCS-SWORD
1 other identifier
interventional
30
1 country
1
Brief Summary
- 1.To determine the effects of tDCS on subjective measures of sleepiness in night-shift workers with shift work disorder.
- 2.To determine the effects of transcranial direct current stimulation (tDCS) on vigilance in night-shift workers with shift work disorder.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable
Started Mar 2019
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
First Submitted
Initial submission to the registry
March 12, 2019
CompletedFirst Posted
Study publicly available on registry
March 18, 2019
CompletedStudy Start
First participant enrolled
March 20, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 20, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
June 20, 2020
CompletedResults Posted
Study results publicly available
October 25, 2021
CompletedOctober 25, 2021
October 1, 2021
1.3 years
March 12, 2019
July 28, 2021
October 22, 2021
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Psychomotor Vigilance Test
Objective measure of sleepiness. Scale ranges between each individual, with the reciprocal of the reaction time being reported.
3 minutes
Karolinska Sleepiness Scale
Subjective measure of sleepiness. Scale ranges from 1-9, with total score being reported.
5 minutes
Secondary Outcomes (1)
Epworth Sleepiness Scale
5 minutes
Study Arms (1)
Transcranial Direct Current Stimulation
EXPERIMENTALActive tDCS for 30 minutes before their scheduled work hours at least 3x/week for two consecutive weeks.
Interventions
tDCS is a form of noninvasive, painless, brain stimulation that uses a mild direct electrical current passed between electrodes on the scalp to modify neuronal membrane resting potential in a polarity dependent manner, elevating or lowering neuron excitability in a region.
Eligibility Criteria
You may qualify if:
- age 18-65 years
- works 5 or more night shifts per month (each shift lasting at least 10 hours, with ≥6 hours worked between 10 pm and 8 am) with plans to maintain this schedule for the duration of the 3-week trial
- meets the criteria for Shift Work Disorder according to the International Classification of Sleep Disorders24 and evaluation of a sleep medicine provider (physician or nurse practitioner) during a screening evaluation:
- affirmative answers to Do you experience excessive sleepiness? (yes/no); "Do you experience difficulties with falling asleep during opportunities for sleep? (yes/no); "Is the sleep or sleepiness problem related to a work schedule where you have to work when you would normally sleep? (yes/no)"; and "Has this sleep or sleepiness problem related to your work schedule persisted for at least three months? (yes/no)
- based on the evaluation of the sleep medicine provider, the sleep and/or wake disturbance are not better explained by another current sleep disorder, medical or neurologic disorder, mental disorder, medication use, poor sleep hygiene, or substance abuse disorder.
- Stable medication dosage over previous 4 weeks.
- Able to understand English and give a written informed consent document.
You may not qualify if:
- Currently taking stimulant medications such as Modafinil, Armodafinil, Methylphenidate, or Dextroamphetamine.
- History of automobile accident due to falling asleep while driving
- Inability to understand or read English
- Self-reported Substance abuse (current)
- Excessive alcohol consumption defined as:
- More than 3 glasses of wine a day
- More than 3 beers a day
- More than 60 mL of hard liquor a day
- Presence of cardiac pacemaker or automatic implantable cardioverter-defibrillator (AICD).
- Pregnancy, lactation (will be screened with urine pregnancy test)
- Non-removable metal or tattoos around head
- Use of implantable birth control device such as Implanon
- History of frequent severe headaches
- Unstable coronary artery disease
- Uncontrolled Seizure disorder
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The Ohio State University
Columbus, Ohio, 43210, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
Outcome measurements and adverse events were not analyzed and reported as the study was terminated due to funding stopped
Results Point of Contact
- Title
- Dr. Ulysses Magalang
- Organization
- The Ohio State University Wexner Medical Center
Study Officials
- PRINCIPAL INVESTIGATOR
Ulysses Magalang, MD
Ohio State University
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor of Medicine and Neuroscience Director, Sleep Medicine Program
Study Record Dates
First Submitted
March 12, 2019
First Posted
March 18, 2019
Study Start
March 20, 2019
Primary Completion
June 20, 2020
Study Completion
June 20, 2020
Last Updated
October 25, 2021
Results First Posted
October 25, 2021
Record last verified: 2021-10
Data Sharing
- IPD Sharing
- Will not share