Neural Bases of Phantom Pain After Amputation (Phantom limb)

September 16, 2022 updated by: Direction Centrale du Service de Santé des Armées

Experimental Study of the Neural Bases of Phantom Pain After Amputation and Their Modification by Proprioceptive Training: MRI Study of the Brain and Spinal Cord

The amputation of a limb results in chronic pain associated with the lost limb in the majority of patients, which persists over time. Despite a large number of studies conducted in an attempt to elucidate the neural basis of phantom pain, these are still not elucidated and current treatments often fail to relieve patients' pain.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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.
Observational

Enrollment (Anticipated)

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.
75

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

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

The study population is composed of :

  • patients who have been amputated for more than 2 years and have chronic phantom pain;
  • patients who have been amputated for more than 2 years and do not have chronic phantom pain;
  • healthy participants with no neurological history. The patients will be recruited from the cohort of amputee patients followed by the Physical Medicine and Rehabilitation departments of the Hôpital d'Instruction des Armées Laveran, the Hôpital d'Instruction des Armées Desgenettes and the CHU de Saint-Etienne.

Description

Inclusion Criteria:

  • Between 18 and 65 years old
  • For the "amputees with phantom pain" group: patients who have been amputated for more than 2 years and have chronic phantom pain
  • For the "amputees without phantom pain" group: patients who have been amputated for more than 2 years and do not have chronic phantom pain
  • For the "healthy participants" group: healthy participants with no neurological history

Exclusion Criteria:

  • Clinically significant pathology (gastrointestinal, renal, hepatic, endocrine, cardiovascular or respiratory)
  • Progressive psychiatric or neurological pathology
  • On psychotropic medication
  • Pregnant or nursing woman
  • Inadequate level of French language

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

  • Observational Models: Case-Control
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
Amputees with phantom pain
Adult patients who have been amputated for more than 2 years and have chronic phantom pain
Other: Questionnaires
Short-Form McGill Pain Questionnaire (SF-MPQ) Pain Disability Index (PDI) Prosthesis Evaluation Questionnaire (PEQ) Psychological Inflexibility to Pain Scale (PIPS) Chronic Pain Acceptance Questionnaire (CPAQ) Cognitive Difficulties Scale (CDS) Amputee Body Image Scale (ABIS) Trinity Amputation and Prosthesis Experience Scales (TAPES) Pain Catastrophizing Scale (PCS) Hospital Anxiety and Depression Scale (HAD) Credibility/Expectancy Questionnaire (CEQ) Short-Form Edinburgh Handedness Inventory (SF-EHI) Patient's Global Impression of Change (PGIC)
Device: Brain and Spinal Cord functional Magnetic Resonance Imaging
Brain and Spinal Cord functional Magnetic Resonance Imaging
Other: Proprioceptive training
Proprioceptive muscular training via a mechanical vibration of low amplitude and frequency between 60 and 80 Hz applied to the tendons.
Amputees without phantom pain
Adult patients who have been amputated for more than 2 years and do not have chronic phantom pain
Other: Questionnaires
Short-Form McGill Pain Questionnaire (SF-MPQ) Pain Disability Index (PDI) Prosthesis Evaluation Questionnaire (PEQ) Psychological Inflexibility to Pain Scale (PIPS) Chronic Pain Acceptance Questionnaire (CPAQ) Cognitive Difficulties Scale (CDS) Amputee Body Image Scale (ABIS) Trinity Amputation and Prosthesis Experience Scales (TAPES) Pain Catastrophizing Scale (PCS) Hospital Anxiety and Depression Scale (HAD) Credibility/Expectancy Questionnaire (CEQ) Short-Form Edinburgh Handedness Inventory (SF-EHI) Patient's Global Impression of Change (PGIC)
Device: Brain and Spinal Cord functional Magnetic Resonance Imaging
Brain and Spinal Cord functional Magnetic Resonance Imaging
Healthy participants
Healthy adult participants with no neurological history
Device: Brain and Spinal Cord functional Magnetic Resonance Imaging
Brain and Spinal Cord functional Magnetic Resonance Imaging
Other: Proprioceptive training
Proprioceptive muscular training via a mechanical vibration of low amplitude and frequency between 60 and 80 Hz applied to the tendons.

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
Change in brain activity, measured through fMRI, following proprioceptive training
Time Frame: Up to 3 months
Brain activity (BOLD hemodynamic response) will be measured via fMRI before and after proprioceptive training sessions.
Up to 3 months
Change in spinal cord activity, measured through spinal fMRI, following proprioceptive training
Time Frame: Up to 3 months
Spinal cord activity (BOLD hemodynamic response) will be measured via spinal fMRI before and after proprioceptive training sessions.
Up to 3 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.
Direction Centrale du Service de Santé des Armées

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)

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.
October 1, 2022

Primary Completion (Anticipated)

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.
October 1, 2026

Study Completion (Anticipated)

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.
October 1, 2026

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).
September 12, 2022

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.
September 16, 2022

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.
September 19, 2022

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.
September 19, 2022

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.
September 16, 2022

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.
September 1, 2022

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.
  • 2020PPRC09
  • 2021-A01733-38 (Other Identifier: IDRCB)

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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