NCT00871819

Brief Summary

The objective of this study is to evaluate extent, location, and perception of paresthesia as a function of anode/cathode configuration.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Mar 2009

Shorter than P25 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2009

Completed
26 days until next milestone

First Submitted

Initial submission to the registry

March 27, 2009

Completed
3 days until next milestone

First Posted

Study publicly available on registry

March 30, 2009

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2009

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2009

Completed
2.6 years until next milestone

Results Posted

Study results publicly available

April 4, 2012

Completed
Last Updated

November 27, 2013

Status Verified

November 1, 2013

Enrollment Period

5 months

First QC Date

March 27, 2009

Results QC Date

February 13, 2012

Last Update Submit

November 5, 2013

Conditions

Keywords

Spinal Cord Stimulation

Outcome Measures

Primary Outcomes (1)

  • Correlation Coefficient Between Dorsal Root Paresthesia (Total Pixels Derived From Digital Drawing) at Maximum-comfortable Stimulation Level and Anode-cathode Separation Distance (mm)

    Immediately post-procedure

Study Arms (1)

Spinal Cord Stimulation Group

OTHER

Spinal Cord Stimulation (SCS) Treatment Group

Device: Precision Spinal Cord Stimulation (SCS)

Interventions

Various SCS device programming parameters

Also known as: Precision Spinal Cord Stimulation System
Spinal Cord Stimulation Group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Be previously implanted with Precision SCS System (3-36 months post permanent implant) having 2 parallel percutaneous leads placed between T8-T10.
  • Be implanted with Precision SCS System for the treatment of neuropathic pain of trunk and/or limbs
  • Be 18 years of age or older
  • Be extremely satisfied, very satisfied, or satisfied with SCS therapy for treatment of pain condition
  • Be able to use pen tablet to document regions of paresthesia and pain
  • Be able to lie in the supine position for 45 minutes at a minimum
  • Be able to verbally report qualitative and quantitative aspects of paresthesia sensations.
  • Have a paresthesia threshold on a standard program below 4mA while in the supine position
  • Have at minimum the upper contact of one lead below T8 and the lower contact above T11 vertebral levels
  • Be willing and able to comply with study-related procedure
  • Agree to study requirements and provides written Informed Consent

You may not qualify if:

  • Unable to read, write, speak, and understand English
  • Currently pregnant or planning to become pregnant during the course of the study
  • Have negative finding in any of the pre-screening and screening requirements
  • Upon fluoroscopy, location of both leads is identified to be outside T8-T10 vertebral levels
  • Unable to perceive the sensation of paresthesia associated with stimulation in the trunk and/or lower extremities
  • Have a drug pump and/or a non-Precision neurostimulation device (regardless of whether active or inactive)
  • Have had any interventional pain procedure or surgeries (including Interlaminar epidural steroid injection, Transforaminal epidural steroid injection, Caudal epidural steroid injection, Selective nerve root block, Intraarticular lumbar facet injection, Sacroiliac joint injection, Piriformis muscle injection, Trochanteric bursa injection, Hip/knee joint injections, Medial branch block (innervates facet joint), Pulsed radiofrequency neurotomy medial branches, Pulsed radiofrequency dorsal root ganglion, Thermal (high temperature) radiofrequency neurotomy medial branches, Trigger point injections, and Botulinum toxin injections) involving the spine within the past 30 days
  • Have any condition that is likely to confound evaluation of study endpoints. Conditions that may make paresthesia coverage variable over the course of the study include multiple sclerosis, partial spinal cord injury, diabetic peripheral neuropathy, peripheral vascular disease, scoliosis, deafferentation, etc.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of California, San Diego Medical Center

San Diego, California, 92037, United States

Location

MeSH Terms

Conditions

NeuralgiaPain

Condition Hierarchy (Ancestors)

Peripheral Nervous System DiseasesNeuromuscular DiseasesNervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Limitations and Caveats

Small number of subjects; technical outcomes not necessarily predictive of therapeutic effectiveness.

Results Point of Contact

Title
Nitzan Mekel-Bobrov, Ph.D.
Organization
Boston Scientific

Study Officials

  • Nicholas Kormylo, MD

    University of California, San Diego

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
LTE60
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 4
Allocation
NA
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
SUPPORTIVE CARE
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 27, 2009

First Posted

March 30, 2009

Study Start

March 1, 2009

Primary Completion

August 1, 2009

Study Completion

September 1, 2009

Last Updated

November 27, 2013

Results First Posted

April 4, 2012

Record last verified: 2013-11

Locations