Single Center, Single Blind, Randomized, Sham Controlled Pilot Study Using Selective Nerve Stimulation (SNS) Signal for Nerve Modulation With Three Amplitudes (Supra-threshold, Sub-threshold and Sham)
Overview
- Phase
- Early Phase 1
- Intervention
- Not specified
- Conditions
- Healthy
- Sponsor
- Codman & Shurtleff
- Enrollment
- 60
- Locations
- 1
- Primary Endpoint
- Modulation of Median Nerve Perception or Nerve Physiology
- Status
- Completed
- Last Updated
- 6 years ago
Overview
Brief Summary
The purpose of this study is to examine if a new device, the SNS (Selective Nerve Stimulator), is effective in changing the way nerves work as pain killing drugs sometimes do. During this study, the study team will place 2 adhesive patches on the inside of one of the wrists of the non-dominant hand (if the subject is right-handed the electrodes will be placed on the subject's left wrist) of the study subject. These patches will be connected by wires (leads) to a small box with a headphone jack. This is designed to provide gentle electrical stimulation through the skin. This study will look at the amount of change from normal nerve function, the sensory effects (feeling, sensations in the body), and any changes the subject has when performing the 2 hour tests. The safety of the study device will also be evaluated.
Detailed Description
Single center, single blind, randomized, crossover design, sham controlled pilot study using Selective Nerve Stimulation (SNS) signal for nerve modulation with three amplitudes (supra-threshold,sub-threshold and sham) The primary objective of this proof of concept study is to: • Evaluate median nerve modulation with selective nerve stimulation amplitudes (supra-threshold, sub-threshold, and sham) by means of objective quantitative sensory tests (QST) and Sensory Nerve Conduction Threshold Tests (sNCTs) in healthy subjects. The secondary objectives to be evaluated in this study are to: * Establish device safety profile * Evaluate patient reported sensory descriptions and perception during modulation
Investigators
Eligibility Criteria
Inclusion Criteria
- •Subjects must fulfill all of the following criteria:
- •18 years of age or older
- •Ability to provide written informed consent for participation in this study
- •Ability to understand and willing to comply with all study-related procedures, such as questionnaires, diaries and follow-up visits for the study duration
- •Ability to not use analgesics throughout the duration of the study
Exclusion Criteria
- •Chronic peripheral pain or diagnosed neuropathy of the median nerve or the cervical spine (C6-C8) as reported by the subject
- •Use of analgesics within 3 days prior to screening / baseline visit and if the subject is unable to refrain from using any analgesics throughout their study participation
- •Metal implants in the forearm
- •Previous nerve damage or bone injury that led to median nerve damage
- •Previous surgery for carpal tunnel release in the non-dominant study hand
- •Skin irritation or active infection at or near the electrode placement sites
- •Allodynia involving the patch application area
- •Known history of allergic reaction to the adhesive, hydrogel or any other component of the electrode or patch
- •Use of an investigational drug or device within 30 days prior to study enrollment.
- •Use of Cardiac pacemaker, implantable cardioverter-defibrillators (ICD's), or other electrostimulation device
Outcomes
Primary Outcomes
Modulation of Median Nerve Perception or Nerve Physiology
Time Frame: > 2 weeks
The primary effectiveness endpoints are the modulation of median nerve perception or nerve physiology as measured by: * QST evaluated by method of levels for vibratory perception threshold (VS) in ABeta fibers and for cold sensation threshold (CS) in alpha gamma fibers and warm sensation threshold (WS) in c fibers. * sNCTs Current Perception Threshold (CPT) in ABeta, Alpha gamma and c fibers (CPT2k, CPT250, CPT5 respectively).