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NCT04272489 · ClinicalTrials.gov registry record · NA
Pattern Recognition Prosthetic Control
A NA study, sponsored by Coapt.
- Completed
- Registry status
- NA
- Development phase
- 9
- Enrollment target
NCT04272489: Completed NA study, sponsored by Coapt.
NCT04272489 is a NA study that has completed, run by Coapt. The registered enrollment target is 9 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04272489, a NA study, has completed, sponsored by Coapt.
- COMPLETED
- Registry status
- NA
- Development phase
- 9 participants
- Enrollment target
Study Summary
Many different factors can degrade the performance of an upper limb prosthesis users control with electromyographic (EMG)-based pattern recognition control. Conventional control systems require frequent recalibration in order to achieve consistent performance which can lead to prosthetic users choosing to wear their device less. This study investigates a new adaptive pattern recognition control algorithm that retrains, rather than overwrite, the existing control system each instance users recalibrate. The study hypothesis is that such adaptive control system will lead to more satisfactory prosthesis control thus reducing the need for recalibration and increasing how often users wear their device. Participants will wear their prosthesis as they would normally at-home using each control system (adaptive and non-adaptive) for an 8-week period with an intermittent 1-week washout period (17 weeks total). Prosthetic usage will be monitored during each period in order to compare user wear time and recalibration frequency when using adaptive or non-adaptive control. Participants will also play a set of virtual games on a computer at the start (0-months), mid-point (1-months) and end (2-months) of each period that will test their ability to control prosthesis movement using each control system. Changes in user performance will be evaluated during each period and compared between the two control systems. This study will not only evaluate the effectiveness of adaptive pattern recognition control, but it will be done at-home under typical and realistic prosthetic use conditions.
Primary Outcome
We will record each instance participants turn on or off their pattern recognition device throughout the home trial. Prosthetic wear time is defined as the cumulative amount of time participants keep their pattern recognition device turned on during the course of each in-home 8-week period. We will perform a statistical analysis to compare wear time when using each type of pattern recognition control system (adaptive and non-adaptive). We will complete repeated measures analysis of variance with
Interventions
- DEVICE EMG-Pattern Recognition Controller
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 9 participants |
| Start Date | 2020-12-17 |
| Est. Completion | 2022-05-20 |
| Phase | NA |
What the finished NCT04272489 record still lists
NCT04272489 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 9 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (99% lower).
The record links to 0 conditions, and to 1 intervention - of which EMG-Pattern Recognition Controller is the first listed.
NCT04272489 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04272489 about?
NCT04272489 is a clinical study titled "Pattern Recognition Prosthetic Control". Many different factors can degrade the performance of an upper limb prosthesis users control with electromyographic (EMG)-based pattern recognition control. Conventional control systems require frequent recalibration in order to achieve consistent performance which can lead to prosthetic users choos...
What is the current status of trial NCT04272489?
This trial is currently completed. It is a NA study. The enrollment target is 9 participants. The study started on 2020-12-17. Estimated completion is 2022-05-20.
What interventions are being tested in trial NCT04272489?
The interventions under investigation include: EMG-Pattern Recognition Controller (DEVICE).
Who is sponsoring clinical trial NCT04272489?
This trial is sponsored by Coapt, which has 2 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04272489's enrollment target sits among peer trials
9 1975th of 2000 higher than 25 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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