Randomized, Sham-Controlled Investigation of the Leia Sensory Prosthesis in Individuals With Peripheral Neuropathy (MYN-L001-001)

July 13, 2026 updated by: MYNERVA AG

Randomized, Sham-Controlled, Multicenter Investigation of the Leia Sensory Prosthesis on Gait and Balance in Peripheral Neuropathy.

This study will evaluate a wearable device intended to support balance and gait in adults with peripheral neuropathy. Participants will use the device for a defined period, and outcomes related to safety, usability, and functional performance will be assessed.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This clinical investigation will assess a non-invasive wearable device designed to enhance gait and balance in individuals with peripheral neuropathy. The study will evaluate whether the device can improve balance and gait stability during daily activities, and will also examine safety, comfort, and overall user acceptability over the study period.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
80

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Switzerland
      • Meyrin, Switzerland, 1217
        • Not yet recruiting
        • Hôpital de La Tour
        • Principal Investigator:
          • Christophe Perruchoud, PD Dr.
        • Contact:
      • Morges, Switzerland, 1110
        • Recruiting
        • Ensemble Hospitalier de la Côte (EHC)
        • Contact:
        • Principal Investigator:
          • Massimo Allegri, Dr.
      • Zurich, Switzerland, 8008
        • Not yet recruiting
        • Universitätsklinik Balgrist
        • Contact:
          • Carl Zipser, PD Dr. med.
          • Phone Number: +41 44 386 3901
          • Email: zfp@balgrist.ch
        • Principal Investigator:
          • Patrick Freund, Prof. Dr. med.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Signed informed consent prior to any study procedure
  • Adults ≥ 18 years
  • Clinical diagnosis of peripheral neuropathy, confirmed per site procedures and neurophysiological testing (e.g. NCV)
  • Gait or balance difficulties as self-reported and confirmed by Functional Gait Assessment (FGA score ≤ 23) and/or single-leg stance < 30 seconds
  • Able to walk without walking aids
  • Stable supplements and medications ≥ 1 month before baseline and willing to maintain stability during the investigation (same dosage and same medication within the last month)
  • Willingness and ability to attend weekly sessions, perform home use, and return for follow-up

Exclusion Criteria:

  • Untreated/unhealed lesion of any kind (e.g., wounds, swelling, infection, inflamed area of skin or eruptions on the lower leg (foot and ankle) or near product use (e.g., untreated lymphedema, phlebitis, thrombo-phlebitis or varicose veins)
  • Untreated/unhealed fractures in the foot and ankle
  • Cancerous growth in the planned treatment area
  • Severe peripheral vascular disease (e.g., gangrene)
  • Cognitive impairment that precludes informed consent or device use
  • Implanted electrical devices or pacemakers
  • Lower-limb orthoses/braces that cannot be removed for assessments
  • Pregnant or breast-feeding females
  • Usage of other medical devices for the relief of neuropathic symptoms during the study
  • Current participation in any other clinical study using an investigational device or investigational drug
  • Orthopedic conditions substantially limiting gait (e.g., failed back surgery syndrome (FBSS), recent hip or knee replacement, unstable fractures) as judged by the investigator
  • For patients who have been randomized in the active treatment group only: Incapability to perceive somatotopic sensations (tested at screening by MYNERVA staff)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Active Device
Participants use the active wearable device during the study period.
Device: Active wearable device
A non-invasive wearable device used to assess balance, gait, and usability in individuals with peripheral neuropathy.
Sham Comparator: Sham Device
Participants use a sham version of the wearable device without active functionality.
Device: Sham wearable device
A sham version of the wearable device without active functionality.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Functional Gait Assessment (FGA) total score
Time Frame: Change in Functional Gait Assessment (FGA) total score from baseline (day 0) to day 56.
The FGA is a validated clinical scale that assesses gait function and balance under various walking tasks.
Change in Functional Gait Assessment (FGA) total score from baseline (day 0) to day 56.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Functional Gait Assessment (FGA) total score
Time Frame: From baseline (day 0) to the end of the supervised period (day 28), change from day 28 to day 56, and evaluation of evolution across all timepoints, with and without stimulation
The FGA is a validated clinical scale that assesses gait function and balance under various walking tasks. To gain additional knowledge on whether there are changes between supervised and home-use phase
From baseline (day 0) to the end of the supervised period (day 28), change from day 28 to day 56, and evaluation of evolution across all timepoints, with and without stimulation
Timed-up and Go (TUG) in seconds
Time Frame: Change from Baseline to day 56
The Timed Up and Go (TUG) test assesses functional mobility. Participants are instructed to stand up from a chair, walk 3 metres at their usual pace, turn around, walk back to the chair, and sit down. The time from the command to start until the participant is seated again is recorded in seconds. A shorter time indicates better functional mobility.
Change from Baseline to day 56
Neuropathic pain symptoms (NPSI questionnaire)
Time Frame: Change from baseline to each of the follow-up time points (day 7, 14, 28, 35, 42, 49, 56 and 80)
Captures changes in neuropathic pain intensity and quality.
Change from baseline to each of the follow-up time points (day 7, 14, 28, 35, 42, 49, 56 and 80)
Quality of life (NORFOLK QOL-DN, EQ-5D-5L questionnaire)
Time Frame: Change from baseline to day 28, day 56 and day 80
Evaluates impact of intervention on daily function and well-being.
Change from baseline to day 28, day 56 and day 80
Sensory function - Monofilament test
Time Frame: Change from baseline value from day 7 pre-stimulation to follow-up time points (day 28 and 56)
Sensitivity to pressure and touch
Change from baseline value from day 7 pre-stimulation to follow-up time points (day 28 and 56)
Sensory function - Rydel-Seiffer tuning fork test
Time Frame: Change from baseline value from day 7 pre-stimulation to follow-up time points (day 28, and 56)
Semiquantitative measurement of vibration perception
Change from baseline value from day 7 pre-stimulation to follow-up time points (day 28, and 56)
Sensory function - Sudoscan (subset of patients)
Time Frame: Change from baseline to day 56
Evaluates peripheral sensory function and small-fiber integrity.
Change from baseline to day 56
Impact on fall risk: fall questionnaire
Time Frame: Change from baseline to day 28, day 56 and day 80
Assessment of previous falls and falls during the study
Change from baseline to day 28, day 56 and day 80
Neuroimaging (MRI) (subset of patients)
Time Frame: Change from baseline to day 56
Exploratory mechanistic endpoint assessing effects of stimulation.
Change from baseline to day 56
Treatment compliance
Time Frame: Through home use phase of 4 weeks
Based on the device logs that contain information on when treatment has been performed by the patients, patient's treatment compliance will be assessed.
Through home use phase of 4 weeks
Objective gait parameters (Movement Lab): step length in cm
Time Frame: Baseline, day 28 and day 56
Provides quantitative kinematic evidence of gait stability.
Baseline, day 28 and day 56
Objective gait parameters (Movement Lab): step width in cm
Time Frame: Baseline, day 28 and day 56
Provides quantitative kinematic evidence of gait stability.
Baseline, day 28 and day 56
Objective gait parameters (Movement Lab): center of mass sway in cm
Time Frame: Baseline, day 28 and day 56
Provides quantitative kinematic evidence of gait stability.
Baseline, day 28 and day 56
Objective gait parameters (Movement Lab): heel-strike force in Newton
Time Frame: Baseline, day 28 and day 56
Provides quantitative kinematic evidence of gait stability.
Baseline, day 28 and day 56

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Exploratory - Sensory function - Temperature measurement using the thermal imaging camera
Time Frame: Change from baseline value from day 7 prestimulation to follow-up time points day 28 and 56
Temperature distribution in the feet)
Change from baseline value from day 7 prestimulation to follow-up time points day 28 and 56
Safety Outcome
Time Frame: through study completion, an average of 4 months
All Adverse events (AEs): incidence, severity, seriousness, relatedness to device/procedures
through study completion, an average of 4 months
Safety Outcome
Time Frame: through study completion, an average of 4 months
All Device deficiencies: number, type, corrective actions
through study completion, an average of 4 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
MYNERVA AG

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 3, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2026

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
August 1, 2028

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
November 13, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
November 14, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
November 19, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 15, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 13, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MYN-L001-001
  • Unique Device Identifiers (Other Identifier: GS1)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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