Efficacy of the SCS System as Salvage Therapy - Full Text View

Purpose

The primary objective of this study is to evaluate the efficacy of spinal cord stimulation using the Precision implantable neurostimulation device for chronic and intractable pain of the trunk and or limbs in patients who have failed treatment with an intraspinal infusion pump or other SCS system.

Condition	Intervention	Phase
Pain; Intractable Pain; Chronic Pain	Device: Precision for Spinal Cord Stimulation	Phase 4

Study Type:	Interventional
Study Design:	Allocation: Non-Randomized Endpoint Classification: Safety/Efficacy Study Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Treatment
Official Title:	Efficacy of the Precision Spinal Cord Stimulation (SCS) System as Salvage Therapy for Patients With Chronic and Intractable Pain of the Trunk and or Limbs Who Have Failed Previous Treatment With an Intraspinal Infusion Pump or Other SCS Device

Resource links provided by NLM:

MedlinePlus related topics: Back Pain Chronic Pain

U.S. FDA Resources

Further study details as provided by Boston Scientific Corporation:

Primary Outcome Measures:

Incidence of adverse events during the study period; [ Time Frame: Throughout Study ] [ Designated as safety issue: Yes ]
Reduction of pain during the trial period. [ Time Frame: Throughout Study ] [ Designated as safety issue: No ]

Enrollment:	6
Study Start Date:	August 2006
Study Completion Date:	April 2008
Primary Completion Date:	April 2008 (Final data collection date for primary outcome measure)

Intervention Details:

Precision System aids in the management of chronic intractable pain of the trunk and/or limbs, including unilateral or bilateral pain associated with the following: failed back surgery syndrome, intractable back pain, and leg pain.

Other Name: PRECISION Spinal Cord Stimulator System (Precision System)

Detailed Description:

Chronic pain is managed by the sequential application of various strategies: medications, anesthetic injections, neuroablation, surgery, implantable intraspinal infusion pumps, and spinal cord stimulation. For a significant number of patients, however, these treatments are inadequate or cannot be tolerated. Those patients require another option for pain relief.

The therapy afforded by spinal cord stimulators is dependent on overlapping paresthesia with the painful areas. One of the leading reasons for explant of SCS systems (not including device failure or surgical complication) is the complaint of inadequate pain relief due to poor coverage of the painful area. Mounting evidence suggests that the clinical efficacy afforded by SCS varies with each manufacturer's technology. For instance, previously-implanted SCS patients report more complete coverage, better pain relief, and a more pleasant sensation associated with the paresthesia of the Precision system. The tight lead spacing and current fractionalization achievable with the Precision system may provide pain relief after failure with another SCS system.

This study will assess pain relief with the Precision system for patients with chronic, intractable pain who are refractory to treatment with other types of SCS systems and/or implantable intraspinal infusion pumps. Because Precision allows unique programming combinations not possible with other systems, it is expected that subjects will enjoy significant pain relief.

Eligibility

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

Criteria

Inclusion Criteria:

Have chronic and intractable neuropathic pain of the trunk and/or limbs of moderate to severe intensity and have failed treatment with an intraspinal infusion pump or other SCS device. Determination of failure of treatment will be based on subject feedback. Subjects with an active intraspinal infusion pump but with inadequate pain control will be allowed to participate;
Be 18 years of age or older;
Be an appropriate candidate for the surgical procedures required for this study;
Be willing and able to comply with all study related procedures and visits;
Be capable of reading and understanding patient information materials and giving written informed consent.

Exclusion Criteria:

Have failed immediate past treatment with an intraspinal infusion pump or other SCS device because of technical reasons associated with the device such as unresolved lead migration, battery depletion, etc.;
Have any evidence of neurologic instability requiring surgery;
Have any significant medical condition that in the opinion of the investigator may interfere with the conduct of the study or may adversely affect the subject's safety during the study;
Have any other active implantable device with the exception of a intraspinal infusion pump for pain medications;
Are pregnant or lactating or planning to become pregnant in the next year;
Have participated in any investigational drug or device trial in the last 4 weeks or plan to participate in any other investigational drug or device trial while on this study.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00387244

Sponsors and Collaborators

Boston Scientific Corporation

Investigators

Principal Investigator:

Eric Grigsby, MD

Spectrum Care

More Information

No publications provided

Responsible Party:	Lyn Pimentel, Clinical Project Manager, Boston Scientific Corporation
ClinicalTrials.gov Identifier:	NCT00387244 History of Changes
Other Study ID Numbers:	SCS0506
Study First Received:	October 10, 2006
Last Updated:	May 11, 2011
Health Authority:	United States: Institutional Review Board

Keywords provided by Boston Scientific Corporation:

Pain;
Back Pain;
Neurostimulation

Additional relevant MeSH terms:

Pain, Intractable
Pain
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms

ClinicalTrials.gov processed this record on May 16, 2013