The purpose of this study is to determine the feasibility, safety, and preliminary efficacy of a two-week self Cranial Electrical Stimulation(CES) on pain in older adults with knee osteoarthritis(OA)



Eligible Ages
Between 50 Years and 85 Years
Eligible Genders
Accepts Healthy Volunteers

Inclusion Criteria

  • have self-reported unilateral or bilateral knee OA pain, according to American College of Rheumatology criteria
  • have had knee OA pain in the past 3 months with an average of at least 30 on a 100 Numeric Rating Scale (NRS) for pain
  • can speak and read English
  • have a device with internet access that can be used for secure video conferencing for real- time remote supervision
  • have no plan to change medication regimens for pain throughout the trial
  • are able to travel to the coordinating center
  • are willing and able to provide written informed consent prior to enrollment

Exclusion Criteria

  • history of brain surgery, brain tumor, seizure,stroke, or intracranial metal implantation
  • serious medical illness, such as uncontrolled hypertension (i.e., systolic blood pressure/ diastolic blood pressure ≥ 150/95 mm Hg)heart failure, or history of acute myocardial infarction
  • alcohol/substance abuse
  • cognitive impairment
  • pregnancy or lactation
  • hospitalization within the preceding year for psychiatric illness

Study Design

Study Type
Intervention Model
Parallel Assignment
Primary Purpose
Triple (Participant, Care Provider, Outcomes Assessor)

Arm Groups

ArmDescriptionAssigned Intervention
  • Device: Cranial Electrical Stimulation (CES)
    CES will be applied for 60 minutes per session daily for 2 weeks (Monday to Friday) via the Alpha-Stim M Electromedical Products International, Inc., Mineral Wells, TX).
    Other names:
    • Alpha-Stim M
Placebo Comparator
  • Device: Sham-CES
    For sham CES, the electrodes will be identical look and be placed in the same positions as for active stimulation, but the stimulator will not deliver electrical current.
    Other names:
    • Alpha-Stim M

More Details

The University of Texas Health Science Center, Houston

Study Contact


Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.