Reducing Pain in Complex Regional Pain Syndrome Using Personalized Brain Stimulation: A Feasibility Study

Condition(s) studied

Investigational drug(s) / intervention(s)

Repetitive transcranial magnetic stimulation: Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive, non-painful procedure used to relieve chronic pain and promote short-term changes. The first dorsal interossei (FDI) muscle of the left motor cortex will be targeted using neuronavigation software. A series of 90 triplet pulses will be delivered at 100 Hz stimulation. Stimulation will be delivered at 80% of the resting motor threshold obtained from the right FDI muscle. The delivery of rTMS requires \~ 15 minutes in total.

Study summary

This research study looks at the feasibility of using a new treatment, noninvasively activating the brain through repetitive transcranial magnetic stimulation (rTMS) to treat pain symptoms of complex regional pain syndrome (CRPS). This study will help us determine if this technique is feasible (able to recruit participants and if the research activities are feasible and can be used to treat CRPS patients with pain in a larger study. The investigators will also examine how TMS can be personalized to individuals using an individual's brain activity measured using EEG. The investigators will also study whether the effects of TMS are stronger if the TMS is delivered during a specific timing of the EEG activity.

Eligibility

Primary outcome measure(s)

• Accuracy of BCI — Periprocedural
  Offline analysis of the EEG data recorded during intervention will be used to determine the true positive (TPR), false positive (FPR), true negative (TNR), and false negative rates (FNR) of the model. This aim will be achieved if 70% or more of the participants' trained BCI achieve a TPR \> 65% and an FPR \< 10%.

Trial sites (1)

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