NCT05961072

Brief Summary

To determine the benefit of the vvibrotactile sensory feedback device.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Aug 2023

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 30, 2023

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 27, 2023

Completed
5 days until next milestone

Study Start

First participant enrolled

August 1, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2023

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2024

Completed
Last Updated

July 27, 2023

Status Verified

July 1, 2023

Enrollment Period

4 months

First QC Date

May 30, 2023

Last Update Submit

July 17, 2023

Conditions

Outcome Measures

Primary Outcomes (7)

  • Measure Velocity

    To investigate the potential effects of vibrotactile stimulation on gait velocity by asking the participant to walk a given distance during gait tests and measuring the velocity during which they walk during this distance. The specific gait test is the 10-meter gait velocity test (meters/second).

    One Year

  • Measure Endurance

    To investigate the potential effects of vibrotactile stimulation on endurance by asking the participant to walk a given distance during the 2 minute walking endurance test (meters).

    One Year

  • Measure Physical Function

    To investigate the potential effects of vibrotactile stimulation on physical function of the patient through the Patient Reported Outcome Measurements Physical function short form 6b. This scale goes from 6-30 where lower numbers mean that the patient is less physically able.

    One Year

  • Measure User Satisfaction of Function

    To investigate the potential effects of vibrotactile stimulation on physical function of the patient through the Orthotics Prosthetics Users Survey satisfaction with device questionnaire after the gait tests. This scale goes from 20-100 where lower numbers indicate easier ability to perform physical activities.

    One Year

  • Measure Pain Overall

    To investigate the potential effects of vibrotactile stimulation on amputation-related pain through patient-reported outcomes such as the Defense and Veterans Pain Rating Scale (DVPRS). This scale goes from 0 (no pain) to a 10 (as bad as it could be, nothing else matters).

    One Year

  • Measure Pain Interference

    To investigate the potential effects of vibrotactile stimulation on amputation-related pain through patient-reported outcomes such as Patient Reported Outcome Measurements Pain Interference Short Form 4a. This scale goes from 4-20 where lower numbers indicate less pain.

    One Year

  • Measure Pain Intensity

    To investigate the potential effects of vibrotactile stimulation on amputation-related pain through patient-reported outcomes such as Patient Reported Outcome Measurements Pain Intensity Short Form 3a. This scale goes from 3-15 where lower numbers indicate less pain.

    One Year

Secondary Outcomes (3)

  • Measure Patient Satisfaction

    One Year

  • Measure Patient Depression

    One Year

  • Measure Patient Anxiety

    One Year

Study Arms (1)

Patients receiving the vibrotactile sensory feedback device

EXPERIMENTAL

Patients who have undergone a major lower limb amputation and are receiving the vibrotactile sensory feedback device

Device: Vibrotactile sensory feedback device

Interventions

The company Saphenus Medical Technology GmbH will provide all of the devices for this study. The non-invasive vibrotactile sensory feedback device consists of 4 vibration -motors, which are placed in a cuff or pant on the patient's residual limb (RL). Furthermore, the system consists of a foot sole with integrated sensors and transmitters. The patient will put the sole of their foot into the shoe of the amputated side. There are 4 sensors matching the vibration motors - 3 under the forefoot and 1 on the heel - in the foot sole. Depending on whether the patient loads their forefoot or their heel while walking, the assigned vibration motor vibrates on the skin of their RL. The patient will learn which vibration motor is assigned to their forefoot and which to their heel. This gives the patient sensory feedback without having to check with their eyes which part of the prosthetic foot is currently touching the ground.

Patients receiving the vibrotactile sensory feedback device

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • English-speaking
  • Major lower limb amputee
  • Willing and able to participate

You may not qualify if:

  • Age under 18

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Massachusetts General Hospital

Boston, Massachusetts, 02114, United States

Location

Study Officials

  • Kyle R Eberlin, MD

    Massachusetts General Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

May 30, 2023

First Posted

July 27, 2023

Study Start

August 1, 2023

Primary Completion

December 1, 2023

Study Completion

May 1, 2024

Last Updated

July 27, 2023

Record last verified: 2023-07

Data Sharing

IPD Sharing
Will not share

Locations