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Pragmatic Trial of Remote tDCS and Somatosensory Training for Phantom Limb Pain With Machine Learning to Predict Treatment Response

NCT05188183 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 290

Last updated 2025-09-19

No results posted yet for this study

Summary

The investigators have designed a pragmatic trial of home-based transcranial direct current stimulation (tDCS) for phantom limb pain (PLP), the PLP-EVEREST trial (PLP-EffectiVEness pRagmatic Stimulation Trial) to test a portable device that would reach underrepresented populations and would validate this therapy in a more pragmatic setting. Subjects will be randomized to home-based tDCS of the primary motor cortex (M1) with somatosensory training or usual care only (including their current pharmacological treatments, physical therapy, and occupational therapy). The investigators will therefore test the effectiveness of home-based tDCS and somatosensory training in a real-world, home-based setting. The Investigator will compare patients randomized to this combined strategy vs. usual care alone (subjects from this group will be offered combined treatment at the end of the trial). The investigators hypothesize that the combined strategy will be associated with a significantly larger Cohen's d effect size (at least 1) compared to the control group.

Conditions

  • Phantom Limb Pain

Interventions

DEVICE

M1 anodal home-based tDCS

During tDCS, low amplitude direct currents are applied via scalp electrodes and penetrate the skull to enter the brain. Direct current will be transferred by a saline-soaked pair of surface sponge electrodes (35 cm2) and delivered by a specially developed, battery-driven, constant current stimulator with a maximum output of 10 mA.

BEHAVIORAL

Somatosensory Training

The somatosensory training will be performed during the self-administration of tDCS, including 20 sessions over 4 weeks. Sessions will start with relaxation exercises using a body scan technique, whereby subjects in a relaxed state will be instructed to sequentially interchange their mind to different regions of the body while perceiving it and establishing contact with the body part. Subjects will be asked to concentrate on any feeling (kinetic, kinesthetic or exteroceptive) related to each body part. Phantom exercises will involve the use of imagined movements of the phantom limb. Therefore, patients will be asked to perform general exercises with their phantom limb. Exercises will include hip, knee, ankle, and toe movements.

OTHER

Usual Care

Usual care includes pharmacological treatments, physical therapy, occupational therapy and/or behavioral therapy that the subject is receiving.

Sponsors & Collaborators

  • Spaulding Rehabilitation Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2022-09-01
Primary Completion
2027-06-30
Completion
2027-07-31
FDA Device
Yes

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05188183 on ClinicalTrials.gov