Scrambler Therapy in Treating Pain and Peripheral Neuropathy in Patients Previously Treated with Chemotherapy


About this study

This pilot clinical trial studies scrambler therapy in treating pain and peripheral neuropathy in patients previously treated with chemotherapy. Scrambler therapy may help relieve pain from peripheral neuropathy caused by chemotherapy.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • Pain or symptoms of neuropathy or pain of ≥ 1 month (30 days) duration for which the patient wants intervention
  • Participants have to relate that tingling or pain was at least a four out of ten problem during the prior week, on a 0-10 scale where zero was no problem and ten was the worst possible problem and expected to have tingling or pain of at least 4/10 at the time of the first treatment
  • Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) = 0, 1, or 2
  • Life expectancy ≥ 3 months (90 days)
  • Case review by the study chair, or designate, as a case where treatment should be tried.
  • Ability to complete questionnaire(s) by themselves or with assistance - Ability to provide informed written consent

Exclusion Criteria:

  • Pregnant women
  • Patients with implantable drug delivery systems, e.g. Medtronic Synchromed
  • Patients with heart stents or metal implants such as pacemakers, automatic defibrillators, aneurysm clips, vena cava clips and skull plates; (metal implants for orthopedic repair, e.g. pins, clips, plates, cages, joint replacements are allowed as are central venous access devices)
  • Patients with a history of myocardial infarction or ischemic heart disease within the past six months
  • Patients with history of epilepsy, brain damage, use of anti-convulsants for seizure prevention, concurrently using ketamine, symptomatic brain metastases; Note: anti-convulsant use is allowed for neuropathy and heart failure (HF) if on a stable dose
  • Skin conditions such as open sores that would prevent proper application of the electrodes
  • Other medical or other condition(s) that in the opinion of the investigators might compromise the objectives of the study
  • Currently on gabapentin or pregabalin Note: (because of data that support that patients don't do as well when on gabapentin or pregabalin, all patients on these medications will be weaned off of them prior to study initiation. The study team will provide instructions on how to do this).

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Charles Loprinzi, M.D.

Closed for enrollment

Contact information:

Cancer Center Clinical Trials Referral Office


More information


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