- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05656924
Deploying Digital Prosthetic Interface Technology and Exercise in Dysvascular Amputees
April 13, 2023 updated by: Paolo Bonato, Spaulding Rehabilitation Hospital
Improving the Health Status of Dysvascular Amputees by Deploying Digital Prosthetic Interface Technology in Combination With an Exercise Intervention
The study will test a new approach to the design and implementation of socket and liner technology in individuals who lost a lower limb secondary to diabetes mellitus type II (herein referred to as dysvascular amputees).
The technology-based intervention will be combined with an exercise program designed to improve the health status of dysvascular amputees.
Study Overview
Status
Not yet recruiting
Conditions
Intervention / Treatment
Detailed Description
The study will test the hypothesis that the use of a digital approach to the design and implementation of socket and liner technology (herein referred to as "digital prosthetic interface technology") leads to better health of the residuum (compared to traditional socket and liner technology).
This hypothesis will be tested by recruiting a group of dysvascular amputees (herein meant to refer to individuals who lost a lower limb secondary diabetes mellitus type II) and by randomizing them to either receiving a digital prosthetic interface technology or a traditional socket and liner system.
Furthermore, the study will assess if the digital prosthetic interface technology improves adherence to an exercise program and results in better clinical outcomes.
To test this hypothesis, an exercise intervention will be deployed by relying on coaching and mobile health technology to encourage adherence to a walking program targeting dysvascular transtibial amputees.
This exercise intervention is an extension of pilot work that demonstrated the suitability of mobile health technology to implement an exercise-based intervention program in dysvascular amputees.
Study Type
Interventional
Enrollment (Anticipated)
38
Phase
- Phase 2
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Paolo Bonato, PhD
- Phone Number: 617-952-6319
- Email: pbonato@mgh.harvard.edu
Study Locations
-
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Massachusetts
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Boston, Massachusetts, United States, 02129
- Spaulding Rehabilitation Hospital Boston
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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
Ages Eligible for Study
16 years to 68 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Unilateral transtibial amputation within the past 4-16 months
- Etiology secondary to complications of Diabetes Mellitus (DM) type II
- Current use of a prosthesis, with at least 2 months prior use
- K2 or K3 level (as determined using the Amputee Mobility Predictor assessment tool)
- Own a smartphone
Exclusion Criteria:
- Amputation due to cancer or macrotrauma or acute hemorrhage
- Bilateral amputation
- Medically or surgically unstable contralateral lower extremity as determined by medical criteria (e.g., critical limb ischemia)
- Severe residual limb pain that limits function preventing participation in an exercise-based program
- Medical conditions that would interfere with subject's participation in regular sustained exercise
- Anthropometric characteristics that are not compatible with the technology used to scan the residuum and manufacture the liner and socket (e.g., a residuum circumference greater than 32 inches would not be compatible with the device used to scan the residuum)
- Current pregnancy
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: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: digital prosthetic interface technology group
Study participants randomized to this group will use the digital prosthetic interface technology developed by Bionic Skins.
|
Individuals randomized to this group will receive a socket and liner that are manufactured using a novel technique meant to achieve a better distribution of pressure on the residuum.
The study is based on the hypothesis that an improvement in pressure distribution on the residuum will enable high adherence to an exercise program meant to improve health status in dysvascular amputees.
|
No Intervention: traditional socket and liner technology group
Study participants randomized to this group will use a traditional socket-liner technology (i.e., study participants will use their own liner and socket system).
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Difference in intra-socket interface pressure between the two groups
Time Frame: Baseline
|
Pressure sensors inserted in the socket will be used to measure the pressure on the residuum when study participants are weight bearing.
The pressure is measured in kilopascals (kPa). 1 kPa is approximately the pressure exerted by a 10-g mass resting on a 1-cm2 area.
|
Baseline
|
Difference in step counts between the two groups
Time Frame: 12 months
|
The average number of steps over a period of 2 weeks will be provided by a wearable sensor (Oura ring).
The data will be expressed in number of steps per day.
|
12 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Difference in thermal imaging measures of the temperature of the residuum in the two groups
Time Frame: Baseline
|
A thermal camera will be used to measure the peak temperature of the residuum.
The residuum temperature will be measured in degrees Celsius.
|
Baseline
|
Difference in Socket Evaluation Questionnaire (SEQ) scores in the two groups
Time Frame: Baseline
|
The Socket Evaluation Questionnaire (SEQ) consists of a battery of questions inquiring about subject's comfort using a socket.
The SEQ uses a visual analog scale format.
The output ranges from 0 (worst) to 100 (best).
|
Baseline
|
Difference in Prosthesis Evaluation Questionnaire (PEQ) scores in the two groups
Time Frame: Baseline
|
The Prosthesis Evaluation Questionnaire (PEQ) consists of a battery of questions inquiring about subject's perception of his/her prosthesis.
The PEQ uses a visual analog scale format.
The output ranges from 0 (worst) to 100 (best).
|
Baseline
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
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 (Anticipated)
June 1, 2023
Primary Completion (Anticipated)
June 1, 2024
Study Completion (Anticipated)
December 31, 2024
Study Registration Dates
First Submitted
December 8, 2022
First Submitted That Met QC Criteria
December 8, 2022
First Posted (Actual)
December 19, 2022
Study Record Updates
Last Update Posted (Actual)
April 18, 2023
Last Update Submitted That Met QC Criteria
April 13, 2023
Last Verified
April 1, 2023
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 2022P003160
- R44HD110327 (U.S. NIH Grant/Contract)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
NO
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
Yes
product manufactured in and exported from the U.S.
Yes
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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