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NCT03263000 · ClinicalTrials.gov registry record
Photic Blink Reflex in People With Blepharospasm and Increased Blinking
A clinical trial, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).
- Terminated
- Registry status
- 17
- Enrollment target
NCT03263000 is a clinical trial that was terminated before completion, run by National Institute of Neurological Disorders and Stroke (NINDS). The registered enrollment target is 17 participants.
The verdict
NCT03263000 was terminated before completion, sponsored by National Institute of Neurological Disorders and Stroke (NINDS).
- TERMINATED
- Registry status
- 17 participants
- Enrollment target
Study Summary
Background: Some people who have increased blinking may later develop blepharospasm. Blepharospasm is a neurological disorder that causes involuntary closing of the eyes. Researchers want to learn more about how eyes close in response to different stimuli. They want to study this in healthy people, people with increased blinking, and people with blepharospasm. Objective: To learn how light exposure affects people with blepharospasm. Eligibility: People ages 18 and older with blepharospasm or increased blinking, and healthy volunteers Design: Participants will be screened with: Medical history Physical exam Neurological exam Participants will have up to 5 visits. The number of visits will depend on the number of tests they opt to have. They can opt to have up to 4 tests. Visits last 60-90 minutes. They cannot drink alcohol or caffeinated drinks for at least 12 hours before visits. Visits could include the following tests: Evaluation of eyelid movements. This will be video recorded. Electromyography: Small sticky electrodes are placed on the lower eyelid skin. These are attached to wires. Muscle activity is recorded during blink reflex procedures. Electrical stimulation: An electrode is placed close to the eyebrow. It will deliver small electrical shocks. The strength of the shocks will be enough to provoke a blink. Photic stimulation: A lamp is placed in front of the face. It will deliver single or paired flashes. The flashes will be at various intervals and intensities. Participants will wear a patch over one eye during this test. Combination of electrical and photic stimulation ...
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 17 participants |
| Start Date | 2017-10-30 |
| Est. Completion | 2019-04-24 |
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Full Details on ClinicalTrials.gov ↗What the Registry Record Tells You About NCT03263000
The ClinicalTrials.gov registry entry for NCT03263000 describes a study currently listed as terminated, categorized as an unspecified phase. The registered enrollment target is 17 participants, a figure that helps gauge the scale of data the investigators plan to collect. The listed sponsor is National Institute of Neurological Disorders and Stroke (NINDS), which has 567 total studies on file at ClinicalTrials.gov.
The record links to 0 conditions, and to 0 interventions.
NCT03263000 reports 0 study locations.
Frequently Asked Questions
What is clinical trial NCT03263000 about?
NCT03263000 is a clinical study titled "Photic Blink Reflex in People With Blepharospasm and Increased Blinking". Background: Some people who have increased blinking may later develop blepharospasm. Blepharospasm is a neurological disorder that causes involuntary closing of the eyes. Researchers want to learn more about how eyes close in response to different stimuli. They want to study this in healthy people,...
What is the current status of trial NCT03263000?
This trial is currently terminated. The enrollment target is 17 participants. The study started on 2017-10-30. Estimated completion is 2019-04-24.
Who is sponsoring clinical trial NCT03263000?
This trial is sponsored by National Institute of Neurological Disorders and Stroke (NINDS), which has 567 total clinical trials registered on ClinicalTrials.gov.
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