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NCT04639947 · ClinicalTrials.gov registry record · NA
Reliability and Reproducibility of the Eye Check Tonometer
A NA study, sponsored by Duke University.
- Terminated
- Registry status
- NA
- Development phase
- 22
- Enrollment target
NCT04639947: Clinical Trial NA study, sponsored by Duke University.
NCT04639947 is a NA study that was terminated before completion, run by Duke University. The registered enrollment target is 22 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04639947, a NA study, was terminated before completion, sponsored by Duke University.
- TERMINATED
- Registry status
- NA
- Development phase
- 22 participants
- Enrollment target
Study Summary
To investigate whether the new applanation tonometer (EyeCheck monitor) can provide intraocular pressure (IOP) measurements comparable to those of traditional tonometers such as the Goldmann applanation tonometer and the Tonopen.
Primary Outcome
Compare EyeCheck intraocular pressure (IOP) measurements comparable to those of traditional tonometers (Goldmann and tonopen)
Interventions
- DEVICE EyeCheck
- DEVICE Traditional Tonometer (Goldmann and Tonopen)
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 22 participants |
| Start Date | 2021-01-06 |
| Est. Completion | 2021-12-02 |
| Phase | NA |
Why NCT04639947 stopped before completion
NCT04639947 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 22 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (98% lower).
The record links to 0 conditions, and to 2 interventions - of which EyeCheck is the first listed.
NCT04639947 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04639947 about?
NCT04639947 is a clinical study titled "Reliability and Reproducibility of the Eye Check Tonometer". To investigate whether the new applanation tonometer (EyeCheck monitor) can provide intraocular pressure (IOP) measurements comparable to those of traditional tonometers such as the Goldmann applanation tonometer and the Tonopen.
What is the current status of trial NCT04639947?
This trial is currently terminated. It is a NA study. The enrollment target is 22 participants. The study started on 2021-01-06. Estimated completion is 2021-12-02.
What interventions are being tested in trial NCT04639947?
The interventions under investigation include: EyeCheck (DEVICE), Traditional Tonometer (Goldmann and Tonopen) (DEVICE).
Who is sponsoring clinical trial NCT04639947?
This trial is sponsored by Duke University, which has 1,725 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04639947's enrollment target sits among peer trials
22 1756th of 2000 higher than 239 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA 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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