NCT05915065

Brief Summary

The objective of this study is to develop a virtual rehabilitation system that can be used to effectively treat Phantom Limb Pain (PLP) within the research setting and for at-home use by individuals with upper and lower extremity amputation. We hypothesize that the system will improve PLP for individuals with upper or lower extremity amputation, as measured through with various outcome measures and questionnaires.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
48

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Oct 2020

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
active not recruiting

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

Study Start

First participant enrolled

October 1, 2020

Completed
2.7 years until next milestone

First Submitted

Initial submission to the registry

June 13, 2023

Completed
9 days until next milestone

First Posted

Study publicly available on registry

June 22, 2023

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2025

Completed
Last Updated

March 14, 2025

Status Verified

March 1, 2025

Enrollment Period

5 years

First QC Date

June 13, 2023

Last Update Submit

March 12, 2025

Conditions

Keywords

Virtual RealityLimb LossAmputationPhantom Pain

Outcome Measures

Primary Outcomes (1)

  • Short-form McGill Pain Questionnaire

    The primary outcome measure in this study is change in the pain rating index (PRI) between the baseline score and at the post-treatment assessment at the end of the 8-week intervention. The PRI is computed as the sum of the scores for all descriptors of the Short Form of the McGill Pain Questionnaire (SF-MPQ).

    Baseline score and at the post-treatment assessment at the end of the 8-week intervention

Secondary Outcomes (3)

  • Visual Analogue Scale (VAS)

    Baseline score and at the post-treatment assessment at the end of the 8-week intervention

  • Numerical Pain Rating Scale (NPRS)

    Baseline score and at the post-treatment assessment at the end of the 8-week intervention

  • Patient-Reported Outcomes Measurement Information Systems (PROMIS)

    Baseline score and at the post-treatment assessment at the end of the 8-week intervention

Study Arms (1)

Phantom Limb Pain Management System during at-home use.

OTHER

Participants attend either in person at Shirley Ryan AbilityLab or virtually via Zoom * Educational documents provided on pain and phantom limb pain. * Participants are measured for an electrode cuff either in person or virtually * Complete several questionnaires. * Provided training on the Phantom Limb Pain Program with use of the electrode cuff and muscular contractions of their limb * Participate in a 8 week home trial (1.5 hours per week of use, 20-40 minutes, 4-5x each week) * Once home trial is complete - participants will be asked to participate in a phone or Zoom call at weeks 16,24 and 32 to repeat questionnaires.

Device: Coapt Phantom Limb Pain Management System

Interventions

The PLP-MS consists of (1) an expandable arm/leg cuff with electrode sensors to collect EMG signals from residual limb muscles, (2) an integrated hardware module (the Coapt Complete Control Gen2.5 system) that translates users' EMG signals into game commands, (3) game software for mobile applications, and (4) a secure, HIPAA-compliant cloud-based data storage system for storing and retrieving user data remotely.

Phantom Limb Pain Management System during at-home use.

Eligibility Criteria

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

You may qualify if:

  • Adults over the age of 18 years old
  • Amputation of the upper or lower limb, including amputation of multiple limbs
  • English Speaking
  • Chronic phantom limb pain (at least 6-months duration)
  • Average phantom limb pain intensity of 4 or greater on a 0-10 numerical rating scale
  • Average frequency of phantom limb pain episode of at least twice per month.
  • Residual limb pain of less than 5 on the Numerical Pain Rating Scale
  • Pain medication use stable for \> 1 month

You may not qualify if:

  • Unable to tolerate use of liner or cuff on their residual limb
  • Skin irritation/wounds on residual limb that would prevent use of the electrode cuff
  • Significant cognitive deficits or visual impairment that would preclude them from giving informed consent or following instructions during the experiments, or the ability to obtain relevant user feedback.
  • Non-English speaking

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Shirley Ryan AbilityLab

Chicago, Illinois, 60611, United States

Location

MeSH Terms

Conditions

Phantom LimbWounds and Injuries

Condition Hierarchy (Ancestors)

Perceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesPain, PostoperativePostoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsSigns and SymptomsPain

Study Officials

  • Levi Hargrove, PhD

    Shirley Ryan AbilityLab

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
DEVICE FEASIBILITY
Intervention Model
SINGLE GROUP
Model Details: This study will enroll one, non-random group of amputees to participate in 2-4 in person or virtual research visits, participate in a home trial and complete questionnaires pre home trial, at various points during the home trial and upon conclusion of the home trial.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Scientific Chair, Center for Bionic Medicine

Study Record Dates

First Submitted

June 13, 2023

First Posted

June 22, 2023

Study Start

October 1, 2020

Primary Completion

September 30, 2025

Study Completion

September 30, 2025

Last Updated

March 14, 2025

Record last verified: 2025-03

Locations