High Rate Spinal Cord Stimulation (SCS) for Chronic Pain

March 9, 2015 updated by: Boston Scientific Corporation

Precision Plus™ High-Rate Subperception SCS for the Treatment of Chronic Intractable Pain

To determine the effects of varying spinal cord stimulation programming parameters, including stimulation rate, on pain intensity.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This study compared the effects of high-rate subperception stimulation with the effects of low-rate subperception stimulation on pain intensity.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
20

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • Carlsbad, California, United States, 92009
        • Coastal Pain Spinal Diagnostic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Chronic intractable pain of the trunk and/or limbs
  • Documented history of trunk and/or limb pain of at least 180 days
  • Average back pain intensity of 5 or greater on a 0-10 numerical rating scale during the 7-day period prior to the Screening Visit
  • Pass study site's routine psychological/psychiatric evaluation within 180 days of the Trial Lead Insertion Visit
  • If taking any medications for chronic pain, must be on a stable prescription during the 14-day period prior to the Trial Lead Insertion Visit and agree to continue on the same prescription throughout study participation
  • Subject is willing and able to comply with all protocol-required procedures and assessments/evaluations
  • Subject is able to independently read and complete all questionnaires and/or assessments provided in English
  • 18 years of age or older when written informed consent is obtained
  • Subject signs a valid, Institutional Review Board (IRB)-approved informed consent form (ICF) provided in English

Exclusion Criteria:

  • Unable to operate the Precision Plus system
  • Primary source of pain is cancer-related, pelvic, visceral, angina, or migraine
  • Is a high surgical risk
  • Is diabetic
  • Is immunocompromised
  • Currently on any anticoagulant medications that cannot be discontinued during perioperative period
  • Untreated major depression or untreated generalized anxiety disorder
  • Diagnosed with somatoform disorder, severe personality disorder, borderline personality disorder
  • Diagnosed with any major psychiatric disorder not specifically listed in CE7 or CE8
  • Currently diagnosed with cognitive impairment that would limit subject's ability to discern differences in pain severity, complete a pain diary, perform wound care
  • Current abuse of alcohol or illicit drugs
  • Subject requires Magnetic Resonance Imaging (MRI) while implanted with lead(s).
  • Subject is participating (or intends to participate) in another drug or device clinical trial that may influence the data that will be collected for this study
  • Subject has previously undergone a spinal cord stimulation trial or is already implanted with an active implantable device(s) to treat their pain (Implantable Pulse Generators (IPGs), implantable drug pump, etc.) or pacemaker or implantable cardiac defibrillator
  • Patient is a woman who is not using adequate contraception, is pregnant or breastfeeding or intends to become pregnant during the course of the study (a urine pregnancy test must be performed within 28 days prior to the Trial Lead Insertion Visit in women of child-bearing potential and the test result documented)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: TREATMENT
  • Allocation: RANDOMIZED
  • Interventional Model: CROSSOVER
  • Masking: DOUBLE

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
EXPERIMENTAL: Low Rate Followed By High Rate
The Precision Plus spinal cord stimulation screening trial leads were temporarily implanted by the investigator. Subjects received low rate stimulation (2 Hz) for 3-4 days, followed by high rate stimulation (1200 Hz) for 3-4 days.
Device: Low Rate Stimulation
Stimulation was given at a rate of 2 Hz.
Device: High Rate Stimulation
Stimulation was given at a rate of 1200 Hz.
EXPERIMENTAL: High Rate Followed By Low Rate
The Precision Plus spinal cord stimulation screening trial leads were temporarily implanted by the investigator. Subjects received high rate stimulation (1200 Hz) for 3-4 days, followed by low rate stimulation (2 Hz) for 3-4 days.
Device: Low Rate Stimulation
Stimulation was given at a rate of 2 Hz.
Device: High Rate Stimulation
Stimulation was given at a rate of 1200 Hz.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in Back Pain Intensity
Time Frame: For this measure, outcome was assessed at baseline, the end of the first intervention (3 or 4 days post-implantation, depending on the subject), and the end of the second intervention (6 or 8 days post-implantation, depending on the subject).
Back pain intensity was measured on a 0-10 numerical rating scale (0="no pain", 10="worst pain imaginable") at baseline and following low rate and high rate stimulation. This outcome measure compared the change in intensity from baseline between low rate and high rate stimulation.
For this measure, outcome was assessed at baseline, the end of the first intervention (3 or 4 days post-implantation, depending on the subject), and the end of the second intervention (6 or 8 days post-implantation, depending on the subject).

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Boston Scientific Corporation

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Omid Khodai, OD, Boston Scientific Corporation

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 1, 2012

Primary Completion (ACTUAL)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
September 1, 2013

Study Completion (ACTUAL)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 15, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
June 19, 2012

First Posted (ESTIMATE)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
June 21, 2012

Study Record Updates

Last Update Posted (ESTIMATE)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 20, 2015

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 9, 2015

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2014

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • A7001

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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