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NCT00048698 · ClinicalTrials.gov registry record · Phase 1
Effects of Direct Current Brain Stimulation on Cognition
A Phase 1 study, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).
- Completed
- Registry status
- Phase 1
- Development phase
- 170
- Enrollment target
NCT00048698: Completed Phase 1 study, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).
NCT00048698 is a Phase 1 study that has completed, run by National Institute of Neurological Disorders and Stroke (NINDS). The registered enrollment target is 170 participants, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (183% higher). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT00048698, a Phase 1 study, has completed, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).
- COMPLETED
- Registry status
- Phase 1
- Development phase
- 170 participants
- Enrollment target
Study Summary
This study will examine the effects of direct current (DC) electrical polarization of the brain on thinking speed, reaction time, mood, and brain waves in healthy individuals. The results will provide information for designing further studies to examine the safety and effectiveness of this technique in treating certain brain diseases involving impaired cognition (thought processing). The study consists of three experiments; participants will take part in either one or two of the experiments. Healthy right-handed volunteers between 18 and 80 years of age with 12 or more years of education may be eligible for this study. Candidates will be screened with a medical and educational history and a brief neurological examination. Participants in experiments 2 and 3 will also be screened with a verbal fluency test in which they will be asked to say as many words beginning with certain letters as they can in 1 minute. Participants will undergo the following procedures for the experiment(s) in which they participate: Experiment 1 While resting quietly, subjects receive 20 minutes of weak electrical current stimulation or sham stimulation with no current. For the stimulation, two gauze pads soaked with a conducting salt solution are placed on the head-one on the left side and one above the right eye. The current is passed between the pads and may cause an itching or tingling sensation under the electrodes. Before and after the stimulation, the participant's reaction time-tested by moving a finger as fast as possible at the sound of a tone-and mood are evaluated. Some participants also have an electroencephalogram, or EEG (brain wave recording) during the experiment. After the stimulation, participants take two brief tests of thinking speed, and the mood and reaction time tests are repeated. Experiment 2 The participant sits in a chair with electrodes attached to the muscles that control movement in a finger on the right hand. Reaction time is tested as described in experi
Interventions
- PROCEDURE EEG
- PROCEDURE TMS
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 170 participants |
| Start Date | 2002-11 |
| Est. Completion | 2005-10 |
| Phase | Phase 1 |
What the finished NCT00048698 record still lists
NCT00048698 is an interventional study that assigns participants to a tested intervention. The registered 170 participants enrollment target is mid-sized for trials with a published cap, above the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (183% higher).
The record links to 0 conditions, and to 2 interventions - of which EEG is the first listed.
NCT00048698 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT00048698 about?
NCT00048698 is a clinical study titled "Effects of Direct Current Brain Stimulation on Cognition". This study will examine the effects of direct current (DC) electrical polarization of the brain on thinking speed, reaction time, mood, and brain waves in healthy individuals. The results will provide information for designing further studies to examine the safety and effectiveness of this technique...
What is the current status of trial NCT00048698?
This trial is currently completed. It is a Phase 1 study. The enrollment target is 170 participants. The study started on 2002-11. Estimated completion is 2005-10.
What interventions are being tested in trial NCT00048698?
The interventions under investigation include: EEG (PROCEDURE), TMS (PROCEDURE).
Who is sponsoring clinical trial NCT00048698?
This trial is sponsored by National Institute of Neurological Disorders and Stroke (NINDS), which has 567 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT00048698's enrollment target sits among peer trials
170 325th of 2000 higher than 1,675 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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