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Virtual Reality Assessment of Control Interfaces for the Use a Neuroprosthesis in Individuals With Tetraplegia

NCT07642804 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 10

Last updated 2026-06-11

No results posted yet for this study

Summary

With a view to implanting a neuroprosthesis for the upper limb in individuals with complete tetraplegia, this study aims to validate virtual reality as a simulation tool for evaluating and optimizing the piloting interfaces of these type of assistive devices. The operating principle of the device we are interested in is to provide a set of predefined functional electrical stimulation (FES) configurations that activate specific hand movements (hand opening, palmar grasp, key grip, etc.), from which the user selects the one that is suitable for performing a task. The user control is usually based on commands from the contralateral limb (pressing a button, shoulder movement, or voluntary muscle contractions). These stereotypical and unintuitive commands hinder any possibility of bimanual tasks. Hands-free voice interfaces have been tested but have contextual limitations, particularly in terms of discretion or usability for certain activities such as eating. Furthermore, it is difficult to evaluate the performance of control interfaces and adjust them prior to the implantation of the stimulation neuroprosthesis. The aim of the I-GRIP project is to establish a methodology that is sufficiently realistic to enable people to envision their future use of a neuroprosthesis. Such a tool would also enable future candidates for implantation to better understand the device's potential. This approach would also make it possible to customize the technology prior to implantation (choice and adjustment of control interfaces, training, configuration of algorithms for analyzing movements evoked by stimulation, etc.).

Our main hypothesis is that two control interfaces (HMI1 and HMI2) will allow the user to control the completion of a grasping task (approach, grasp, hold) for each target object in the virtual environment simulating electrical stimulation of the forearm muscles.

Conditions

  • Intervention Study

Interventions

DEVICE

Virtual reality used as a simulation tool to evaluate and optimize the use of control interfaces

With a view to implanting a neuroprosthesis for the upper limb in individuals with complete tetraplegia, this study aims to validate virtual reality as a simulation tool for evaluating and optimizing the piloting interfaces of these type of assistive devices.

Sponsors & Collaborators

  • Institut National de Recherche en Informatique et en Automatique

    collaborator OTHER

  • Centre Bouffard Vercelli - USSAP

    lead OTHER

Principal Investigators

  • CHRISTINE AZEVEDO, PhD · Institut National de Recherche en Informatique et en Automatique

  • CHARLES FATTAL, MD, PhD · Centre Bouffard Vercelli - USSAP

Study Design

Allocation
NA
Purpose
OTHER
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Max Age
80 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-04-10
Primary Completion
2026-05-07
Completion
2026-05-27

Countries

  • France

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07642804 on ClinicalTrials.gov