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PlayAgain: a direct neural interface with a paediatric neuroorthosis to restore grasping in children with a paralysed hand

PlayAgain: a direct neural interface with a paediatric neuroorthosis to restore grasping in children with a paralysed hand - PlayAgain

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00039493
Enrollment
20
Registered
2026-04-15
Start date
2024-08-09
Completion date
Unknown
Last updated
2026-04-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Paresis of the hand due to all causes, particularly in cases of paraplegia, hemiparesis of various origins including after hemispherotomy, hemorrhage, stroke, or inflammatory diseases of the central nervous system.

Interventions

Group 1: The study includes two intervention areas within the same cohort: the hand orthosis and the rehabilitation game. These are designed to assess, train, and improve residual motor functions over

Sponsors

Universitätsklinikum Erlangen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
3 Years to 17 Years

Inclusion criteria

Inclusion criteria: Neurological disorders presenting with hand paresis

Exclusion criteria

Exclusion criteria: Age < 3 years No detectable muscle activity Intractable spasticity Open injuries Drug or alcohol use Lack of ability to cooperate Severe psychiatric disorders

Design outcomes

Primary

MeasureTime frame
Neuroorthosis: 1. Change in GRASSP Version 2 Prehension Performance and RULM score when using the orthosis in the paralyzed hand, compared with baseline at first use. 2. Proportion of participants achieving recovery of manual dexterity, defined as a Box and Block Test score 3. Increase in range of Motion (ROM) to the level of natural, healthy grasping (fist). Rehagame: 1. EMG Recording: F1 score for intention recognition 2. Movement can be reliably detected, as measured by classification accuracy and sensitivity or by a reduction in latency between the cue stimulus and movement intention to < 0.5 s. 3. EMG signals can be decomposed into individual motor units.

Secondary

MeasureTime frame
Neuroorthosis: -Patient- and parent-reported satisfaction with performance of daily hand-related activities and ease of use, assessed on a visual Likert scale -Usability assessed by the System Usability Scale (SUS). -Measurable voluntary force applied with the orthosis and the paralyzed hand. -Changes in EMG signal characteristics during orthosis use. Rehagame: -Increase in residual movement, assessed by range of motion (ROM). -Motivation and acceptance, assessed by SUS. -Increase in the number of decomposable motor units with training. -Increase in RMS during voluntary movement compared with baseline after 12 weeks. Number of voluntary triggered movements, which can we decoded with machine learning.

Countries

Austria, Germany, Italy, Norway, Switzerland, United Kingdom

Contacts

Public ContactFerdinand Knieling

Universitätsklinikum Erlangen

ferdinand.knieling@uk-erlangen.de+4915154157421

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: May 1, 2026