Multi-center Prospective Study Determining the Sustainability of Pain Relief and Psychosocial and Functional Responses When Utilizing a Multiple Waveform Enabled Neurostimulator (TRIUMPH)
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Detailed Description
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Quebec, Canada, G1J 1Z4
- CHA L'Enfant Jesus
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Saskatchewan
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Saskatoon, Saskatchewan, Canada, S7N 0W8
- Royal University Hospital
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Eastern Finland
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Kuopio, Eastern Finland, Finland, 70211
- Kuopio University Hospital
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North Rhine-Westphalia
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Neuss, North Rhine-Westphalia, Germany, 41460
- Neurochirurgische Praxis Neuss
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Lombardy
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Milano, Lombardy, Italy, 20133
- Fondazione I.R.C.C.S. Instituto Neurologico Carlo Besta
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Tuscany
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Pisa, Tuscany, Italy, 56126
- Azienda Ospedaliero Univsitaria Pisana
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Majadahonda, Spain, 28222
- Hospital Universitario Puerta De Hierro
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Valencia, Spain, 46026
- Hospital Universitari i Politecnic La Fe
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Andalusia
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Sevilla, Andalusia, Spain, 41013
- Hospital Virgin de Rocio
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Aragon
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Zaragoza, Aragon, Spain, 50009
- Hospital Clínico Universitario Lozano Blesa
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Morges, Switzerland, 1110
- Ensemble Hospitalier de la Cote, Hopital de Morges
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Arizona
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Phoenix, Arizona, United States, 85351
- The Core Institute
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Scottsdale, Arizona, United States, 85255
- Tory McJunkin MD
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Tucson, Arizona, United States, 85712
- Pain Institute of Southern Arizona
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Illinois
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Chicago, Illinois, United States, 60657
- Chicago Anesthesia Associates, S.C.
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Oregon
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Eugene, Oregon, United States, 97401
- Pacific Sports & Spine
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Pennsylvania
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Bethlehem, Pennsylvania, United States, 18951
- St. Luke's Hospital & Health Network
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Pottstown, Pennsylvania, United States, 19403
- Performance Spine and Sports Physicians, P.C.
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South Carolina
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Charleston, South Carolina, United States, 29406
- Clinical Trials of South Carolina
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Greenville, South Carolina, United States, 29316
- Carolinas Center for Advanced Management of Pain
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Texas
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Tyler, Texas, United States, 75701
- Azalea Orthopedics
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Wisconsin
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Greenfield, Wisconsin, United States, 53221
- Advanced Pain Management
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Subject has chronic, intractable pain of the trunk and/or limbs, including unilateral or bilateral pain associated with the following: failed back surgery syndrome and intractable low back and leg pain.
- Subject has a score of 6 or higher on the numeric rating scale (NRS) for average pain specific to the area(s) of chronic pain being treated over the past 24 hours at the baseline visit.
- Subject is considered by the Investigator as a candidate for implantation of a spinal cord stimulator system according to the system Instructions For Use.
- Subject is 18 years of age or older at the time of enrollment.
- Subject is willing to cooperate with the study requirements including compliance with the regimen and completion of all study visits.
- Subject has signed and received a copy of the Ethics Committee/Institutional Review Board (EC/IRB) approved informed consent.
Exclusion Criteria:
- Subject currently has a spinal cord stimulation system implanted.
- Subject has previously failed spinal cord stimulation (SCS) therapy (either trial system evaluation or permanent implant).
- Subject has a primary diagnosis of Peripheral Vascular Disease (PVD), Angina Pectoris, or Chronic Migraine.
- Subject has or plans to have a Peripheral Nerve Stimulation system (PNS), Peripheral Nerve field Stimulation system (PNfS), Dorsal Root Ganglion system (DRG), or implantable infusion pump.
- Subject is currently participating in another clinical investigation with an active treatment arm.
- Subject unable to read and/or write.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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Other: All enrolled subjects
All subjects enrolled into the study with intent to treat with either a Prodigy, Prodigy MRI, or Proclaim Elite Implantable Pulse Generator (IPG).
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Subjects will be permanently implanted with either a Prodigy, Prodigy MRI or Proclaim Elite IPG
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Mean Change in Pain From Baseline to 6 Months Post-permanent Implant, Assessed by the Numeric Rating Scale (NRS)
Time Frame: Baseline to 6 Months
|
The pain NRS consists of 1 question that will be asked by interviewing the subjects.
Patients will be asked to rate, from 0 (no pain) to 10 (worst imaginable pain), their average pain over the past 24 hours specific to the area(s) of chronic pain being treated.
A higher score indicates greater pain intensity.
|
Baseline to 6 Months
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Mean Change in Quality of Life From Baseline to 6 Months Post-permanent Implant, Assessed by the EuroQuol-5 Dimensions (EQ5D) Questionnaire
Time Frame: Baseline to 6 Months
|
EQ5D is a standardized instrument for use as a measure of health outcome applicable to a wide range of health conditions and treatments.
It provides a simple descriptive profile and a single index value for health status.
The EQ5D-3L descriptive system comprises the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.
Each dimension has 3 levels: no problems, some problems, extreme problems.
A visual analog scale (VAS) for health is also included in the measure as a patient-reported estimate of overall health status.
EQ5D Index scores range from - 0.594 (min) to 1 (max).
An EQ-5D summary index is derived by applying a formula that attaches values (weights) to each of the levels in each dimension.
Higher values represent better outcomes.
|
Baseline to 6 Months
|
|
Mean Change in Pain Catastrophizing From Baseline to 6 Months Post-permanent Implant, Assessed by the Pain Catastrophizing Scale (PCS)
Time Frame: Baseline to 6 Months
|
The PCS is a validated scale that measures the magnitude of catastrophizing (negative thoughts and feelings while a patient is experiencing pain).
Subjects answer questions about how they feel and what they think about when they are in pain (i.e., not at the current moment).
The scale includes 13 statements concerning pain experiences that are rated on a scale between 0 'not at all' and 4 'always'.
The scale is self-administered and takes 5 minutes to complete.
A higher score indicated a higher level of catastrophizing.
PCS total scores range from 0 (min) to 52 (max).
Three sub-scales consists of rumination, magnification, and helplessness.
Rumination scores range from 0 (min) to 16 (max), Magnification scores range from 0 (min) to 12 (max), and helplessness scores range from 0 (min) to 24 (max).
The total PCS score is the sum of the three subscales.
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Baseline to 6 Months
|
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Mean Change in Anxiety From Baseline to 6 Months Post-permanent Implant, Assessed by the State-Trait Anxiety Inventory (STAI)
Time Frame: Baseline to 6 Months
|
The State-Trait Anxiety inventory is a self-administered screening for anxiety.
The STAI has 40 items, 20 items allocated to each of the S-Anxiety and T-Anxiety subscales.
All items are rated on a 4-point scale from 1 to 4. It clearly differentiates between the temporary condition of "state anxiety" and the more general and long-standing quality of "trait anxiety" by providing a score for each.
Higher scores suggest greater levels of anxiety.
The range of possible scores for the STAI varies from a minimum score of 20 to a maximum score of 80 on both the trait and state subscales.
The total score is the sum of the two subscales.
STAI total scores range from 40 to 160.
|
Baseline to 6 Months
|
|
Mean Change in Depression From Baseline to 6 Months Post-permanent Implant, Assessed by the Patient Health Questionnaire-9 (PHQ9)
Time Frame: Baseline to 6 Months
|
The PHQ9 is a multipurpose, validated instrument for screening, diagnosing, monitoring and measuring the severity of depression.
The questionnaire consists of 9 questions that rate the frequency of the symptoms of depression.
A follow up non-scored question screens and assigns weight to the degree to which depressive problems have affected the patient's level of function.
The responses range between 4 choices (0=not at all to 3=nearly every day).
Higher scores indicate a higher likelihood of major depression.
PHQ-9 scores range from 0 (min) to 27 (max).
|
Baseline to 6 Months
|
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Mean Change in Fear Avoidance From Baseline to 6 Months Post-permanent Implant, Assessed by the Tampa Scale for Kinesiophobia (TSK)
Time Frame: Baseline to 6 Months
|
The TSK is a 11-item self-report checklist using a 4-point Likert scale that was developed from the original 17-item checklist (Miller, Kopri & Todd, 1991) as a measure of fear or movement or (re)injury.
The scale is based on the model of fear avoidance, fear of work related activities, fear of movement and fear of re-injury.
The TSK has also been linked to elements of catastrophic thinking.
The scale can be useful in measuring unhelpful thoughts and beliefs about pain in people with chronic pain.
Total TSK-11 scores range from 11-44 points.
Higher scores represent worse outcomes.
|
Baseline to 6 Months
|
|
Mean Change in Sleep From Baseline to 6 Months Post-permanent Implant, Assessed by the Medical Outcome Study (MOS) Sleep Scale
Time Frame: Baseline to 6 Months
|
The MOS sleep scale is intended to assess the extent of sleep problems and measures 6 dimensions of sleep, including initiation, maintenance, quantity, adequacy, drowsiness and respiratory impairments.
It includes 12 questions with the first question assessing how long it takes the subject to fall asleep.
The second question asks how many hours each night the subject slept.
The remaining 10 questions have a range of 6 responses from 1="all of the time" to 6="none of the time".
The scale is self-administered and validated.
MOS Sleep scale scores range from 0 (min) to 100 (max).
Higher scores represent worse outcomes.
|
Baseline to 6 Months
|
|
Mean Change in Physical Function From Baseline to 6 Months Post-permanent Implant, Assessed by the Patient-Reported Outcome Measure Information System (PROMIS) Physical Function Scale
Time Frame: Baseline to 6 Months
|
The PROMIS Physical Function short form is an 8-item instrument designed to measure physical capability rather than actual performance of physical activities.
The scale measures universal physical function rather than disease-specific impairment and assesses current function rather than function over a specified time period.
Each question has five potential response options ranging in value from one to five to give a total score ranging from 8 to 40.
Scores are converted into t-scores where the average for the general US population is 50 and the SD is 10.
Higher scores indicate better physical function.
|
Baseline to 6 Months
|
Other Outcome Measures
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Mean Change in Quality of Life From Baseline to 12 Months Post-permanent Implant, Assessed by the EuroQuol-5 Dimensions (EQ5D) Questionnaire
Time Frame: Baseline to 12 Months
|
EQ5D is a standardized instrument for use as a measure of health outcome applicable to a wide range of health conditions and treatments.
It provides a simple descriptive profile and a single index value for health status.
The EQ5D-3L descriptive system comprises the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.
Each dimension has 3 levels: no problems, some problems, extreme problems.
A visual analog scale (VAS) for health is also included in the measure as a patient-reported estimate of overall health status.
EQ5D Index scores range from - 0.594 (min) to 1 (max).
An EQ-5D summary index is derived by applying a formula that attaches values (weights) to each of the levels in each dimension.
Higher values represent better outcomes.
|
Baseline to 12 Months
|
|
Mean Change in Quality of Life From Baseline to 18 Months Post-permanent Implant, Assessed by the EuroQuol-5 Dimensions (EQ5D) Questionnaire
Time Frame: Baseline to 18 Months
|
EQ5D is a standardized instrument for use as a measure of health outcome applicable to a wide range of health conditions and treatments.
It provides a simple descriptive profile and a single index value for health status.
The EQ5D-3L descriptive system comprises the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.
Each dimension has 3 levels: no problems, some problems, extreme problems.
A visual analog scale (VAS) for health is also included in the measure as a patient-reported estimate of overall health status.
EQ5D Index scores range from - 0.594 (min) to 1 (max).
An EQ-5D summary index is derived by applying a formula that attaches values (weights) to each of the levels in each dimension.
Higher values represent better outcomes.
|
Baseline to 18 Months
|
|
Mean Change in Quality of Life From Baseline to 24 Months Post-permanent Implant, Assessed by the EuroQuol-5 Dimensions (EQ5D) Questionnaire
Time Frame: Baseline to 24 Months
|
EQ5D is a standardized instrument for use as a measure of health outcome applicable to a wide range of health conditions and treatments.
It provides a simple descriptive profile and a single index value for health status.
The EQ5D-3L descriptive system comprises the following 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression.
Each dimension has 3 levels: no problems, some problems, extreme problems.
A visual analog scale (VAS) for health is also included in the measure as a patient-reported estimate of overall health status.
EQ5D Index scores range from - 0.594 (min) to 1 (max).
An EQ-5D summary index is derived by applying a formula that attaches values (weights) to each of the levels in each dimension.
Higher values represent better outcomes.
|
Baseline to 24 Months
|
|
Mean Change in Pain Catastrophizing From Baseline to 3 Months Post-permanent Implant, Assessed by the Pain Catastrophizing Scale (PCS)
Time Frame: Baseline to 3 Months
|
The PCS is a validated scale that measures the magnitude of catastrophizing (negative thoughts and feelings while a patient is experiencing pain).
Subjects answer questions about how they feel and what they think about when they are in pain (i.e., not at the current moment).
The scale includes 13 statements concerning pain experiences that are rated on a scale between 0 'not at all' and 4 'always'.
The scale is self-administered and takes 5 minutes to complete.
A higher score indicated a higher level of catastrophizing.
PCS total scores range from 0 (min) to 52 (max).
Three sub-scales consists of rumination, magnification, and helplessness.
Rumination scores range from 0 (min) to 16 (max), Magnification scores range from 0 (min) to 12 (max), and helplessness scores range from 0 (min) to 24 (max).
The total PCS score is the sum of the three subscales.
|
Baseline to 3 Months
|
|
Mean Change in Pain Catastrophizing From Baseline to 12 Months Post-permanent Implant, Assessed by the Pain Catastrophizing Scale (PCS)
Time Frame: Baseline to 12 Months
|
The PCS is a validated scale that measures the magnitude of catastrophizing (negative thoughts and feelings while a patient is experiencing pain).
Subjects answer questions about how they feel and what they think about when they are in pain (i.e., not at the current moment).
The scale includes 13 statements concerning pain experiences that are rated on a scale between 0 'not at all' and 4 'always'.
The scale is self-administered and takes 5 minutes to complete.
A higher score indicated a higher level of catastrophizing.
PCS total scores range from 0 (min) to 52 (max).
Three sub-scales consists of rumination, magnification, and helplessness.
Rumination scores range from 0 (min) to 16 (max), Magnification scores range from 0 (min) to 12 (max), and helplessness scores range from 0 (min) to 24 (max).
The total PCS score is the sum of the three subscales.
|
Baseline to 12 Months
|
|
Mean Change in Pain Catastrophizing From Baseline to 18 Months Post-permanent Implant, Assessed by the Pain Catastrophizing Scale (PCS)
Time Frame: Baseline to 18 Months
|
The PCS is a validated scale that measures the magnitude of catastrophizing (negative thoughts and feelings while a patient is experiencing pain).
Subjects answer questions about how they feel and what they think about when they are in pain (i.e., not at the current moment).
The scale includes 13 statements concerning pain experiences that are rated on a scale between 0 'not at all' and 4 'always'.
The scale is self-administered and takes 5 minutes to complete.
A higher score indicated a higher level of catastrophizing.
PCS total scores range from 0 (min) to 52 (max).
Three sub-scales consists of rumination, magnification, and helplessness.
Rumination scores range from 0 (min) to 16 (max), Magnification scores range from 0 (min) to 12 (max), and helplessness scores range from 0 (min) to 24 (max).
The total PCS score is the sum of the three subscales.
|
Baseline to 18 Months
|
|
Mean Change in Pain Catastrophizing From Baseline to 24 Months Post-permanent Implant, Assessed by the Pain Catastrophizing Scale (PCS)
Time Frame: Baseline to 24 Months
|
The PCS is a validated scale that measures the magnitude of catastrophizing (negative thoughts and feelings while a patient is experiencing pain).
Subjects answer questions about how they feel and what they think about when they are in pain (i.e., not at the current moment).
The scale includes 13 statements concerning pain experiences that are rated on a scale between 0 'not at all' and 4 'always'.
The scale is self-administered and takes 5 minutes to complete.
A higher score indicated a higher level of catastrophizing.
PCS total scores range from 0 (min) to 52 (max).
Three sub-scales consists of rumination, magnification, and helplessness.
Rumination scores range from 0 (min) to 16 (max), Magnification scores range from 0 (min) to 12 (max), and helplessness scores range from 0 (min) to 24 (max).
The total PCS score is the sum of the three subscales.
|
Baseline to 24 Months
|
|
Mean Change in Anxiety From Baseline to 12 Months Post-permanent Implant, Assessed by the State-Trait Anxiety Inventory (STAI)
Time Frame: Baseline to 12 Months
|
The State-Trait Anxiety inventory is a self-administered screening for anxiety.
The STAI has 40 items, 20 items allocated to each of the S-Anxiety and T-Anxiety subscales.
All items are rated on a 4-point scale from 1 to 4. It clearly differentiates between the temporary condition of "state anxiety" and the more general and long-standing quality of "trait anxiety" by providing a score for each.
Higher scores suggest greater levels of anxiety.
The range of possible scores for the STAI varies from a minimum score of 20 to a maximum score of 80 on both the trait and state subscales.
The total score is the sum of the two subscales.
STAI total scores range from 40 to 160.
|
Baseline to 12 Months
|
|
Mean Change in Anxiety From Baseline to 18 Months Post-permanent Implant, Assessed by the State-Trait Anxiety Inventory (STAI)
Time Frame: Baseline to 18 Months
|
The State-Trait Anxiety inventory is a self-administered screening for anxiety.
The STAI has 40 items, 20 items allocated to each of the S-Anxiety and T-Anxiety subscales.
All items are rated on a 4-point scale from 1 to 4. It clearly differentiates between the temporary condition of "state anxiety" and the more general and long-standing quality of "trait anxiety" by providing a score for each.
Higher scores suggest greater levels of anxiety.
The range of possible scores for the STAI varies from a minimum score of 20 to a maximum score of 80 on both the trait and state subscales.
The total score is the sum of the two subscales.
STAI total scores range from 40 to 160.
|
Baseline to 18 Months
|
|
Mean Change in Anxiety From Baseline to 24 Months Post-permanent Implant, Assessed by the State-Trait Anxiety Inventory (STAI)
Time Frame: Baseline to 24 Months
|
The State-Trait Anxiety inventory is a self-administered screening for anxiety.
The STAI has 40 items, 20 items allocated to each of the S-Anxiety and T-Anxiety subscales.
All items are rated on a 4-point scale from 1 to 4. It clearly differentiates between the temporary condition of "state anxiety" and the more general and long-standing quality of "trait anxiety" by providing a score for each.
Higher scores suggest greater levels of anxiety.
The range of possible scores for the STAI varies from a minimum score of 20 to a maximum score of 80 on both the trait and state subscales.
The total score is the sum of the two subscales.
STAI total scores range from 40 to 160.
|
Baseline to 24 Months
|
|
Mean Change in Depression From Baseline to 12 Months Post-permanent Implant, Assessed by the Patient Health Questionnaire-9 (PHQ9)
Time Frame: Baseline to 12 Months
|
The PHQ9 is a multipurpose, validated instrument for screening, diagnosing, monitoring and measuring the severity of depression.
The questionnaire consists of 9 questions that rate the frequency of the symptoms of depression.
A follow up non-scored question screens and assigns weight to the degree to which depressive problems have affected the patient's level of function.
The responses range between 4 choices (0=not at all to 3=nearly every day).
Higher scores indicate a higher likelihood of major depression.
PHQ-9 scores range from 0 (min) to 27 (max).
|
Baseline to 12 Months
|
|
Mean Change in Depression From Baseline to 18 Months Post-permanent Implant, Assessed by the Patient Health Questionnaire-9 (PHQ9)
Time Frame: Baseline to 18 Months
|
The PHQ9 is a multipurpose, validated instrument for screening, diagnosing, monitoring and measuring the severity of depression.
The questionnaire consists of 9 questions that rate the frequency of the symptoms of depression.
A follow up non-scored question screens and assigns weight to the degree to which depressive problems have affected the patient's level of function.
The responses range between 4 choices (0=not at all to 3=nearly every day).
Higher scores indicate a higher likelihood of major depression.
PHQ-9 scores range from 0 (min) to 27 (max).
|
Baseline to 18 Months
|
|
Mean Change in Depression From Baseline to 24 Months Post-permanent Implant, Assessed by the Patient Health Questionnaire-9 (PHQ9)
Time Frame: Baseline to 24 Months
|
The PHQ9 is a multipurpose, validated instrument for screening, diagnosing, monitoring and measuring the severity of depression.
The questionnaire consists of 9 questions that rate the frequency of the symptoms of depression.
A follow up non-scored question screens and assigns weight to the degree to which depressive problems have affected the patient's level of function.
The responses range between 4 choices (0=not at all to 3=nearly every day).
Higher scores indicate a higher likelihood of major depression.
PHQ-9 scores range from 0 (min) to 27 (max).
|
Baseline to 24 Months
|
|
Mean Change in Fear Avoidance From Baseline to 3 Months Post-permanent Implant, Assessed by the Tampa Scale for Kinesiophobia (TSK)
Time Frame: Baseline to 3 Months
|
The TSK is a 11-item self-report checklist using a 4-point Likert scale that was developed from the original 17-item checklist (Miller, Kopri & Todd, 1991) as a measure of fear or movement or (re)injury.
The scale is based on the model of fear avoidance, fear of work related activities, fear of movement and fear of re-injury.
The TSK has also been linked to elements of catastrophic thinking.
The scale can be useful in measuring unhelpful thoughts and beliefs about pain in people with chronic pain.
Total TSK-11 scores range from 11-44 points.
Higher scores represent worse outcomes.
|
Baseline to 3 Months
|
|
Mean Change in Fear Avoidance From Baseline to 12 Months Post-permanent Implant, Assessed by the Tampa Scale for Kinesiophobia (TSK)
Time Frame: Baseline to 12 Months
|
The TSK is a 11-item self-report checklist using a 4-point Likert scale that was developed from the original 17-item checklist (Miller, Kopri & Todd, 1991) as a measure of fear or movement or (re)injury.
The scale is based on the model of fear avoidance, fear of work related activities, fear of movement and fear of re-injury.
The TSK has also been linked to elements of catastrophic thinking.
The scale can be useful in measuring unhelpful thoughts and beliefs about pain in people with chronic pain.
Total TSK-11 scores range from 11-44 points.
Higher scores represent worse outcomes.
|
Baseline to 12 Months
|
|
Mean Change in Fear Avoidance From Baseline to 18 Months Post-permanent Implant, Assessed by the Tampa Scale for Kinesiophobia (TSK)
Time Frame: Baseline to 18 Months
|
The TSK is a 11-item self-report checklist using a 4-point Likert scale that was developed from the original 17-item checklist (Miller, Kopri & Todd, 1991) as a measure of fear or movement or (re)injury.
The scale is based on the model of fear avoidance, fear of work related activities, fear of movement and fear of re-injury.
The TSK has also been linked to elements of catastrophic thinking.
The scale can be useful in measuring unhelpful thoughts and beliefs about pain in people with chronic pain.
Total TSK-11 scores range from 11-44 points.
Higher scores represent worse outcomes.
|
Baseline to 18 Months
|
|
Mean Change in Fear Avoidance From Baseline to 24 Months Post-permanent Implant, Assessed by the Tampa Scale for Kinesiophobia (TSK)
Time Frame: Baseline to 24 Months
|
The TSK is a 11-item self-report checklist using a 4-point Likert scale that was developed from the original 17-item checklist (Miller, Kopri & Todd, 1991) as a measure of fear or movement or (re)injury.
The scale is based on the model of fear avoidance, fear of work related activities, fear of movement and fear of re-injury.
The TSK has also been linked to elements of catastrophic thinking.
The scale can be useful in measuring unhelpful thoughts and beliefs about pain in people with chronic pain.
Total TSK-11 scores range from 11-44 points.
Higher scores represent worse outcomes.
|
Baseline to 24 Months
|
|
Mean Change in Sleep From Baseline to 12 Months Post-permanent Implant, Assessed by the Medical Outcome Study (MOS) Sleep Scale
Time Frame: Baseline to 12 Months
|
The MOS sleep scale is intended to assess the extent of sleep problems and measures 6 dimensions of sleep, including initiation, maintenance, quantity, adequacy, drowsiness and respiratory impairments.
It includes 12 questions with the first question assessing how long it takes the subject to fall asleep.
The second question asks how many hours each night the subject slept.
The remaining 10 questions have a range of 6 responses from 1="all of the time" to 6="none of the time".
The scale is self-administered and validated.
MOS Sleep scale scores range from 0 (min) to 100 (max).
Higher scores represent worse outcomes.
|
Baseline to 12 Months
|
|
Mean Change in Sleep From Baseline to 18 Months Post-permanent Implant, Assessed by the Medical Outcome Study (MOS) Sleep Scale
Time Frame: Baseline to 18 Months
|
The MOS sleep scale is intended to assess the extent of sleep problems and measures 6 dimensions of sleep, including initiation, maintenance, quantity, adequacy, drowsiness and respiratory impairments.
It includes 12 questions with the first question assessing how long it takes the subject to fall asleep.
The second question asks how many hours each night the subject slept.
The remaining 10 questions have a range of 6 responses from 1="all of the time" to 6="none of the time".
The scale is self-administered and validated.
MOS Sleep scale scores range from 0 (min) to 100 (max).
Higher scores represent worse outcomes.
|
Baseline to 18 Months
|
|
Mean Change in Sleep From Baseline to 24 Months Post-permanent Implant, Assessed by the Medical Outcome Study (MOS) Sleep Scale
Time Frame: Baseline to 24 Months
|
The MOS sleep scale is intended to assess the extent of sleep problems and measures 6 dimensions of sleep, including initiation, maintenance, quantity, adequacy, drowsiness and respiratory impairments.
It includes 12 questions with the first question assessing how long it takes the subject to fall asleep.
The second question asks how many hours each night the subject slept.
The remaining 10 questions have a range of 6 responses from 1="all of the time" to 6="none of the time".
The scale is self-administered and validated.
MOS Sleep scale scores range from 0 (min) to 100 (max).
Higher scores represent worse outcomes.
|
Baseline to 24 Months
|
|
Mean Change in Physical Function From Baseline to 12 Months Post-permanent Implant, Assessed by the Patient-Reported Outcome Measure Information System (PROMIS) Physical Function Scale
Time Frame: Baseline to 12 Months
|
The PROMIS Physical Function short form is an 8-item instrument designed to measure physical capability rather than actual performance of physical activities.
The scale measures universal physical function rather than disease-specific impairment and assesses current function rather than function over a specified time period.
Each question has five potential response options ranging in value from one to five to give a total score ranging from 8 to 40.
Scores are converted into t-scores where the average for the general US population is 50 and the SD is 10.
Higher scores indicate better physical function.
|
Baseline to 12 Months
|
|
Mean Change in Physical Function From Baseline to 18 Months Post-permanent Implant, Assessed by the Patient-Reported Outcome Measure Information System (PROMIS) Physical Function Scale
Time Frame: Baseline to 18 Months
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The PROMIS Physical Function short form is an 8-item instrument designed to measure physical capability rather than actual performance of physical activities.
The scale measures universal physical function rather than disease-specific impairment and assesses current function rather than function over a specified time period.
Each question has five potential response options ranging in value from one to five to give a total score ranging from 8 to 40.
Scores are converted into t-scores where the average for the general US population is 50 and the SD is 10.
Higher scores indicate better physical function.
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Baseline to 18 Months
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Mean Change in Physical Function From Baseline to 24 Months Post-permanent Implant, Assessed by the Patient-Reported Outcome Measure Information System (PROMIS) Physical Function Scale
Time Frame: Baseline to 24 Months
|
The PROMIS Physical Function short form is an 8-item instrument designed to measure physical capability rather than actual performance of physical activities.
The scale measures universal physical function rather than disease-specific impairment and assesses current function rather than function over a specified time period.
Each question has five potential response options ranging in value from one to five to give a total score ranging from 8 to 40.
Scores are converted into t-scores where the average for the general US population is 50 and the SD is 10.
Higher scores indicate better physical function.
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Baseline to 24 Months
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Mean Change in Pain From Baseline to End of Trial System (Post-permanent Implant), Assessed by the Numeric Rating Scale (NRS)
Time Frame: Baseline to end of trial system evaluation, approximately 5 to 7 days of BurstDR stimulation
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The pain NRS consists of 1 question that will be asked by interviewing the subjects.
Patients will be asked to rate, from 0 (no pain) to 10 (worst imaginable pain), their average pain over the past 24 hours specific to the area(s) of chronic pain being treated.
A higher score indicates greater pain intensity.
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Baseline to end of trial system evaluation, approximately 5 to 7 days of BurstDR stimulation
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Mean Change in Pain From Baseline to 3 Months Post-permanent Implant, Assessed by the Numeric Rating Scale (NRS)
Time Frame: Baseline to 3 Months
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The pain NRS consists of 1 question that will be asked by interviewing the subjects.
Patients will be asked to rate, from 0 (no pain) to 10 (worst imaginable pain), their average pain over the past 24 hours specific to the area(s) of chronic pain being treated.
A higher score indicates greater pain intensity.
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Baseline to 3 Months
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Mean Change in Pain From Baseline to 12 Months Post-permanent Implant, Assessed by the Numeric Rating Scale (NRS)
Time Frame: Baseline to 12 Months
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The pain NRS consists of 1 question that will be asked by interviewing the subjects.
Patients will be asked to rate, from 0 (no pain) to 10 (worst imaginable pain), their average pain over the past 24 hours specific to the area(s) of chronic pain being treated.
A higher score indicates greater pain intensity.
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Baseline to 12 Months
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Mean Change in Pain From Baseline to 18 Months Post-permanent Implant, Assessed by the Numeric Rating Scale (NRS)
Time Frame: Baseline to 18 Months
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The pain NRS consists of 1 question that will be asked by interviewing the subjects.
Patients will be asked to rate, from 0 (no pain) to 10 (worst imaginable pain), their average pain over the past 24 hours specific to the area(s) of chronic pain being treated.
A higher score indicates greater pain intensity.
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Baseline to 18 Months
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Mean Change in Pain From Baseline to 24 Months Post-permanent Implant, Assessed by the Numeric Rating Scale (NRS)
Time Frame: Baseline to 24 Months
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The pain NRS consists of 1 question that will be asked by interviewing the subjects.
Patients will be asked to rate, from 0 (no pain) to 10 (worst imaginable pain), their average pain over the past 24 hours specific to the area(s) of chronic pain being treated.
A higher score indicates greater pain intensity.
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Baseline to 24 Months
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Number of Participants With Patient Satisfaction at End of Trial System Evaluation
Time Frame: End of trial system evaluation, approximately 5 to 7 days of BurstDR stimulation
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Patient satisfaction will be summarized by count and percentage of participants
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End of trial system evaluation, approximately 5 to 7 days of BurstDR stimulation
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Number of Participants With Patient Satisfaction at 3 Months
Time Frame: 3 Months
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Patient satisfaction will be summarized by count and percentage of participants
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3 Months
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Number of Participants With Patient Satisfaction at 6 Months
Time Frame: 6 Months
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Patient satisfaction will be summarized by count and percentage of participants
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6 Months
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Number of Participants With Patient Satisfaction at 12 Months
Time Frame: 12 Months
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Patient satisfaction will be summarized by count and percentage of participants
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12 Months
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Number of Participants With Patient Satisfaction at 18 Months
Time Frame: 18 Months
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Patient satisfaction will be summarized by count and percentage of participants
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18 Months
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Number of Participants With Patient Satisfaction at 24 Months
Time Frame: 24 Months
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Patient satisfaction will be summarized by count and percentage of participants
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24 Months
|
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Rate of Global Improvement of the Patient by Using the Patient Global Impression of Change (PGIC) at the End of Trial System Evaluation
Time Frame: End of trial system evaluation, approximately 5 to 7 days of BurstDR stimulation
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The PGIC is a categorical rating scale used to evaluate the subject's impression of change in his/her condition since the beginning of the study treatment.
The subject rates their overall change in activity limitations, symptoms, emotions and overall quality of life related to his/her condition on a seven-point categorical scale via an interview technique.
The categories are as follows: 1-no change, 2-almost the same, 3-a little better, 4-somewhat better, 5-moderately better, 6-better, and 7-a great deal better.
Although this tool does not specify the area of change (e.g., pain, function, quality of life, etc.), it allows for an overall integrated assessment from the prospective of the subject.
PGIC values of 6 or 7 are reported to correlate best with actual change.
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End of trial system evaluation, approximately 5 to 7 days of BurstDR stimulation
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Rate of Global Improvement of the Patient by Using the Patient Global Impression of Change (PGIC) at 3 Months
Time Frame: 3 Months
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The PGIC is a categorical rating scale used to evaluate the subject's impression of change in his/her condition since the beginning of the study treatment.
The subject rates their overall change in activity limitations, symptoms, emotions and overall quality of life related to his/her condition on a seven-point categorical scale via an interview technique.
The categories are as follows: 1-no change, 2-almost the same, 3-a little better, 4-somewhat better, 5-moderately better, 6-better, and 7-a great deal better.
Although this tool does not specify the area of change (e.g., pain, function, quality of life, etc.), it allows for an overall integrated assessment from the prospective of the subject.
PGIC values of 6 or 7 are reported to correlate best with actual change.
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3 Months
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Rate of Global Improvement of the Patient by Using the Patient Global Impression of Change (PGIC) at 6 Months
Time Frame: 6 Months
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The PGIC is a categorical rating scale used to evaluate the subject's impression of change in his/her condition since the beginning of the study treatment.
The subject rates their overall change in activity limitations, symptoms, emotions and overall quality of life related to his/her condition on a seven-point categorical scale via an interview technique.
The categories are as follows: 1-no change, 2-almost the same, 3-a little better, 4-somewhat better, 5-moderately better, 6-better, and 7-a great deal better.
Although this tool does not specify the area of change (e.g., pain, function, quality of life, etc.), it allows for an overall integrated assessment from the prospective of the subject.
PGIC values of 6 or 7 are reported to correlate best with actual change.
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6 Months
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Rate of Global Improvement of the Patient by Using the Patient Global Impression of Change (PGIC) at 12 Months
Time Frame: 12 Months
|
The PGIC is a categorical rating scale used to evaluate the subject's impression of change in his/her condition since the beginning of the study treatment.
The subject rates their overall change in activity limitations, symptoms, emotions and overall quality of life related to his/her condition on a seven-point categorical scale via an interview technique.
The categories are as follows: 1-no change, 2-almost the same, 3-a little better, 4-somewhat better, 5-moderately better, 6-better, and 7-a great deal better.
Although this tool does not specify the area of change (e.g., pain, function, quality of life, etc.), it allows for an overall integrated assessment from the prospective of the subject.
PGIC values of 6 or 7 are reported to correlate best with actual change.
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12 Months
|
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Rate of Global Improvement of the Patient by Using the Patient Global Impression of Change (PGIC) at 18 Months
Time Frame: 18 Months
|
The PGIC is a categorical rating scale used to evaluate the subject's impression of change in his/her condition since the beginning of the study treatment.
The subject rates their overall change in activity limitations, symptoms, emotions and overall quality of life related to his/her condition on a seven-point categorical scale via an interview technique.
The categories are as follows: 1-no change, 2-almost the same, 3-a little better, 4-somewhat better, 5-moderately better, 6-better, and 7-a great deal better.
Although this tool does not specify the area of change (e.g., pain, function, quality of life, etc.), it allows for an overall integrated assessment from the prospective of the subject.
PGIC values of 6 or 7 are reported to correlate best with actual change.
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18 Months
|
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Rate of Global Improvement of the Patient by Using the Patient Global Impression of Change (PGIC) at 24 Months
Time Frame: 24 Months
|
The PGIC is a categorical rating scale used to evaluate the subject's impression of change in his/her condition since the beginning of the study treatment.
The subject rates their overall change in activity limitations, symptoms, emotions and overall quality of life related to his/her condition on a seven-point categorical scale via an interview technique.
The categories are as follows: 1-no change, 2-almost the same, 3-a little better, 4-somewhat better, 5-moderately better, 6-better, and 7-a great deal better.
Although this tool does not specify the area of change (e.g., pain, function, quality of life, etc.), it allows for an overall integrated assessment from the prospective of the subject.
PGIC values of 6 or 7 are reported to correlate best with actual change.
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24 Months
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Rate of Medication Usage Measured as Number of Participants With Decrease in Chronic Pain Related Medication Intake Since Baseline
Time Frame: 3 Months
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Medication usage measured as decrease in chronic pain related medication intake since baseline
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3 Months
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Rate of Medication Usage Measured as Number of Participants With Decrease in Chronic Pain Related Medication Intake Since Baseline
Time Frame: 6 Months
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Medication usage measured as decrease in chronic pain related medication intake since baseline
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6 Months
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Rate of Medication Usage Measured as Number of Participants With Decrease in Chronic Pain Related Medication Intake Since Baseline
Time Frame: 12 Months
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Medication usage measured as decrease in chronic pain related medication intake since baseline
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12 Months
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Rate of Medication Usage Measured as Number of Participants With Decrease in Chronic Pain Related Medication Intake Since Baseline
Time Frame: 18 Months
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Medication usage measured as decrease in chronic pain related medication intake since baseline
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18 Months
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Rate of Medication Usage Measured as Number of Participants With Decrease in Chronic Pain Related Medication Intake Since Baseline
Time Frame: 24 Months
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Medication usage measured as decrease in chronic pain related medication intake since baseline
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24 Months
|
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Number of Participants With Stimulation Sensation Assessed by Stimulation Assessment Form
Time Frame: 3 months
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The Stimulation Assessment Form includes questions to identify the sensations experienced when stimulation is used.
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3 months
|
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Number of Participants With Stimulation Sensation Assessed by Stimulation Assessment Form
Time Frame: 6 Months
|
The Stimulation Assessment Form includes questions to identify the sensations experienced when stimulation is used.
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6 Months
|
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Number of Participants With Stimulation Sensation Assessed by Stimulation Assessment Form
Time Frame: 12 Months
|
The Stimulation Assessment Form includes questions to identify the sensations experienced when stimulation is used.
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12 Months
|
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Number of Participants With Stimulation Sensation Assessed by Stimulation Assessment Form
Time Frame: 18 Months
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The Stimulation Assessment Form includes questions to identify the sensations experienced when stimulation is used.
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18 Months
|
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Number of Participants With Stimulation Sensation Assessed by Stimulation Assessment Form
Time Frame: 24 Months
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The Stimulation Assessment Form includes questions to identify the sensations experienced when stimulation is used.
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24 Months
|
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Number of Patient Waveform Preference
Time Frame: 3 months
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Participants could choose between two waveforms with different amplitude, pulse width and frequency to stimulate the spinal cord (burst or tonic).
Patient waveform preference post-permanent implant is summarized by counts and percentages.
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3 months
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Number of Patient Waveform Preference
Time Frame: 6 months
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Participants could choose between two waveforms with different amplitude, pulse width and frequency to stimulate the spinal cord (burst or tonic).
Patient waveform preference post-permanent implant is summarized by counts and percentages.
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6 months
|
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Number of Patient Waveform Preference
Time Frame: 12 months
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Participants could choose between two waveforms with different amplitude, pulse width and frequency to stimulate the spinal cord (burst or tonic).
Patient waveform preference post-permanent implant is summarized by counts and percentages.
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12 months
|
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Number of Patient Waveform Preference
Time Frame: 18 months
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Participants could choose between two waveforms with different amplitude, pulse width and frequency to stimulate the spinal cord (burst or tonic).
Patient waveform preference post-permanent implant is summarized by counts and percentages.
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18 months
|
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Number of Patient Waveform Preference
Time Frame: 24 months
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Participants could choose between two waveforms with different amplitude, pulse width and frequency to stimulate the spinal cord (burst or tonic).
Patient waveform preference post-permanent implant is summarized by counts and percentages.
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24 months
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Recharging Activities- Number of Participants With Frequency of Recharge
Time Frame: 3 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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3 months
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Recharging Activities- Number of Participants With Frequency of Recharge
Time Frame: 6 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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6 months
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Recharging Activities- Number of Participants With Frequency of Recharge
Time Frame: 12 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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12 months
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Recharging Activities- Number of Participants With Frequency of Recharge
Time Frame: 18 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants
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18 months
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Recharging Activities- Number of Participants With Frequency of Recharge
Time Frame: 24 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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24 months
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Recharging Activities- Number of Participants With Duration of Recharge
Time Frame: 3 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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3 months
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Recharging Activities- Number of Participants With Duration of Recharge
Time Frame: 6 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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6 months
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Recharging Activities- Number of Participants With Duration of Recharge
Time Frame: 12 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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12 months
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Recharging Activities- Number of Participants With Duration of Recharge
Time Frame: 18 months
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Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
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18 months
|
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Recharging Activities- Number of Participants With Duration of Recharge
Time Frame: 24 months
|
Recharging activities throughout the follow-up period for subjects who were implanted with a rechargeable device will be summarized by count and percentage of participants.
|
24 months
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Collaborators and Investigators
Sponsor
Sponsor
Investigators
Investigators
- Study Director: Marie Fahey, Abbott
Publications and helpful links
Study record dates
Study Major Dates
Study Start (Actual)
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Actual)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- SJM-CIP-10145
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
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.