Acute Human Study: StimRouter for Peripheral Nerve Stimulation of Discrete Peripheral Nerves - Full Text View

Sponsor:	Bioness Inc
Information provided by (Responsible Party):	Bioness Inc
ClinicalTrials.gov Identifier:	NCT00665132

Purpose

This study is being done to see how well a new investigational medical device, the StimRouter System, will work to treat the chronic pain in people who have failed previous treatments for Carpal Tunnel Syndrome (CTS) pain, including surgery. These people have been treated for CTS pain before including surgical carpal tunnel release, but without good results, and they are still having pain. The study will look at both the good and bad effects of the StimRouter System for treating this kind of pain and as a general peripheral nerve stimulation device for treating chronic pain. The study will also help to understand other possible uses for the StimRouter System.

Condition	Intervention	Phase
Carpal Tunnel Syndrome Pain	Device: StimRouter System	Phase I Phase II

Study Type:	Interventional
Study Design:	Endpoint Classification: Safety/Efficacy Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Treatment
Official Title:	Acute Human Study: StimRouter for Peripheral Nerve Stimulation of Discrete Peripheral Nerves

Resource links provided by NLM:

Genetics Home Reference related topics: Charcot-Marie-Tooth disease hereditary neuropathy with liability to pressure palsies

MedlinePlus related topics: Carpal Tunnel Syndrome

U.S. FDA Resources

Further study details as provided by Bioness Inc:

Primary Outcome Measures:

To evaluate the clinical use of the StimRouter, an implanted peripheral nerve stimulator system, for treating chronic peripheral pain using the median nerve as a general mode for that overall intended use. [ Time Frame: Throughout the study ] [ Designated as safety issue: No ]

Secondary Outcome Measures:

To provide a preliminary evaluation of the outcome measurements that maybe used to assess the clinical benefits related to the use of the StimRouter System as a peripheral nerve stimulator to treat chronic, intractable pain. [ Time Frame: Throughout the study ] [ Designated as safety issue: Yes ]

Enrollment:	10
Study Start Date:	April 2008
Study Completion Date:	December 2008
Primary Completion Date:	December 2008 (Final data collection date for primary outcome measure)

Intervention Details:

Implanted with StimRouter System receive 6 hours (or less if not tolerated by the Subject)of electrical therapeutic stimulation each day for a total of 5 days (from start of successful programming)

Detailed Description:

This is a prospective, single-center, open label study designed to evaluate the clinical use of the StimRouter as a peripheral nerve stimulation device for the treatment of chronic pain. The clinical study is proposed to serve as an evaluation of the preliminary StimRouter design, proposed implantation techniques, electrical stimulation parameters, and outcome measures for the StimRouter. The current study will utilize the median nerve (in the context of carpal tunnel syndrome (CTS), status-post a single failed carpal tunnel release (CTR) surgery)as a model to represent the device's more general intended use as a peripheral nerve stimulator to treat chronic pain.

Eligibility

Ages Eligible for Study:	18 Years and older
Genders Eligible for Study:	Both
Accepts Healthy Volunteers:	No

Criteria

Inclusion Criteria:

18 years of age or older
Chronic peripheral pain persisting for greater than or equal to 3 months diagnosed previously as a mononeuropathy of the median nerve at the level of the carpal tunnel (i.e., diagnosed CTS)
Average chronic pain level greater than or equal to 5/10 [on 0-10 numeric rating scale (NRS) (BPI#14)], where such pain is attributed to injury, irritation, or entrapment of the median nerve at the level of the carpal tunnel (i.e., diagnosed CTS)
Failure of a single prior carpal tunnel release surgery to provide relief, where such failed surgery was performed greater than or equal to study entry
Able to tolerate stimulation (TENS)
Temporary pain relief is achieved by local anesthetic block of the target median nerve suspected to be the source of chronic pain symptoms
Ability to give informed consent and understand study requirements
Ability to quantify pain using a 0-10 numeric rating scale [A screening tool will be used to ensure that subjects can rate 3 common pain scenarios (mosquito bite, stubbed toe and broken bone) on a 0-10 NRS relative to each other, with mosquito bite < stubbed toe < broken bone]
Willing and able to understand and comply with all study-related procedures during the course of the study
Motivated to maintain an accurate diary for the study duration

Exclusion Criteria:

Metal implants in the forearm
Active infection
Active or existing skin disorder or irritation which, at the physician's discretion, contraindications use of skin gel electrodes
Allodynia
Regular use of antiplatelet medications [e.g., aspirin, ticlopidine (Ticlid), clopidogrel (Plavix), tirofiban (Aggrastat), and eptifibatide (Integrilin)]
Anticoagulated (taking warfarin or heparin, including fractionated heparin) or has a bleeding disorder
Cardiac pacemaker
Implanted neurostimulator (e.g., spinal cord, deep brain, vagus nerve stimulator) or implanted pump or infusion device
History of cardiac arrhythmia with homodynamic instability
Untreated drug habituation or dependence
Psychologically or medically unstable
Uncontrolled seizures (averaging > 2 seizures per month)
Pregnant or plan on becoming pregnant or breastfeeding during the study period
Currently require, or likely to require, diathermy and/or MRI during the study duration
History of adverse reactions to local anesthetic (e.g., lidocaine)

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00665132

Locations

United States, West Virginia
The Center for Pain Relief
Charleston, West Virginia, United States, 25301

Sponsors and Collaborators

Bioness Inc

Investigators

Study Director:

Evan L. Rosenfeld, MD, JD

Bioness Inc

More Information

Publications:

Eisenberg E, Waisbrod H, Gerbershagen HU. Long-term peripheral nerve stimulation for painful nerve injuries. Clin J Pain. 2004 May-Jun;20(3):143-6.

Day M. Neuromodulation: spinal cord and peripheral nerve stimulation. Curr Rev Pain. 2000;4(5):374-82. Review.

Responsible Party:	Bioness Inc
ClinicalTrials.gov Identifier:	NCT00665132 History of Changes
Other Study ID Numbers:	CP-STMR07-001-Rev A.1
Study First Received:	April 21, 2008
Last Updated:	November 14, 2011
Health Authority:	United States: Institutional Review Board

Keywords provided by Bioness Inc:

wrist
hand
pain
failed CTR
carpal tunnel syndrome

CTS
CTR
carpel tunnel release
Peripheral nerve
Median nerve

Additional relevant MeSH terms:

Carpal Tunnel Syndrome
Median Neuropathy
Mononeuropathies
Peripheral Nervous System Diseases
Neuromuscular Diseases

Nervous System Diseases
Nerve Compression Syndromes
Cumulative Trauma Disorders
Sprains and Strains
Wounds and Injuries

ClinicalTrials.gov processed this record on February 09, 2012