Primary Care Identification Of Patients With Chronic Neuropathic Low Back Pain Study (PINPOINT)
Open-Labeled European Study To Support The Early Identification Of Patients With Chronic Neuropathic Low Back Pain In Primary Care And To Assess The Effectiveness And Tolerability Of Pregabalin In This Population
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Phase
Phase
- Phase 4
Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients must have low back pain with a neuropathic pain component between 3 months and 12 months duration prior to entering the study.
- Patients must have a score of at least 19 on the PainDetect questionnaire and at least 4 on the Standardized Evaluation of Pain (StEP) scale at screening.
- Patients must have a mean pain numerical rating scale (NRS) score of 4 or more during the one week screening period.
- Patients must have failed to respond to standard analgesic therapy (e.g. non-steroidal anti-inflammatory drugs [NSAIDs]) and/or one treatment for neuropathic pain (e.g. tricyclics, serotonin-norepinephrine re-uptake inhibitors [SNRIs]) prior to entering the study).
Exclusion Criteria:
- A diagnosis of depression or a Hospital Anxiety and Depression Scale (HADS) score of > 15 on the depression sub-scale only.
- Patients with a history of renal impairment or who have reduced renal function at baseline (Creatinine Clearance < 60 mL/min).
- Patients who have previously taken pregabalin or gabapentin within 6 months prior to entering the study.
- Patients who have undergone previous surgery for back pain.
- Patients who are using high doses of opioid medication (morphine > 60 mg per day).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: DIAGNOSTIC
- Allocation: NON_RANDOMIZED
- Interventional Model: SINGLE_GROUP
- Masking: NONE
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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EXPERIMENTAL: Pregabalin
Open label study.
All patients fulfilling the protocol inclusion/exclusion criteria will receive pregabalin in a flexible-dosing regimen.
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The investigator will administer pregabalin in a flexible dose-escalation regimen as follows: 150 mg per night for 1 week, 300 mg per day for 1 week, 450 mg per day for 1 week, then 600 mg per day through to the end of the study.
Patients may change the dose of medication based on individual response and tolerability as determined by the investigator.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
The change in the daily pain diary (Numerical Rating Scale, NRS) mean pain score at the end of the study (Week 12) compared with baseline.
Time Frame: 12 weeks
|
12 weeks
|
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The Patients' Global Impression of Change (PGIC) score at the end of the study (Week 12).
Time Frame: 12 weeks
|
12 weeks
|
Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Time Frame |
|---|---|
|
The time to onset of 30% pain reduction (as measured by the NRS mean pain score).
Time Frame: 12 weeks
|
12 weeks
|
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The change in the Hospital Anxiety and Depression Scale (HADS) score at the end of the study (Week 12) compared with baseline.
Time Frame: 12 weeks
|
12 weeks
|
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The change in the Sleep Interference Scale score at the end of the study (Week 12) compared with baseline.
Time Frame: 12 weeks
|
12 weeks
|
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The change in the Lost Work Day Equivalent (LWDE) score at the end of the study (Week 12) compared with baseline.
Time Frame: 12 weeks
|
12 weeks
|
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The change in the Roland-Morris Disability Questionnaire (RMDQ) score at the end of the study (Week 12) compared with baseline.
Time Frame: 12 weeks
|
12 weeks
|
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The change in the PainDetect score from baseline versus the change in the Standardized Evaluation of Pain (StEP) score from baseline at the end of the study (Week 12).
Time Frame: 12 weeks
|
12 weeks
|
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The proportion of patients with a 30% reduction in pain from baseline at study endpoint (as measured by the NRS mean pain score).
Time Frame: 12 weeks
|
12 weeks
|
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The proportion of patients with a 50% reduction in pain from baseline at study endpoint (as measured by the NRS mean pain score).
Time Frame: 12 weeks
|
12 weeks
|
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The percentage of primary care physicians who find screening tools useful instruments to support the identification of patients with neuropathic chronic low back pain in daily practice.
Time Frame: 12 weeks
|
12 weeks
|
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The nature and incidence of adverse events for patients taking 150 mg pregabalin at night as a single dose, either for one week prior to dose escalation or as continued after the option to escalate dose following one week in the study.
Time Frame: 12 weeks
|
12 weeks
|
Collaborators and Investigators
Sponsor
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (ANTICIPATED)
Primary Completion
Study Completion (ANTICIPATED)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
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
Additional Relevant MeSH Terms
- Nervous System Diseases
- Pain
- Neurologic Manifestations
- Neuromuscular Diseases
- Peripheral Nervous System Diseases
- Back Pain
- Low Back Pain
- Neuralgia
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Central Nervous System Depressants
- Peripheral Nervous System Agents
- Analgesics
- Sensory System Agents
- Tranquilizing Agents
- Psychotropic Drugs
- Membrane Transport Modulators
- Anti-Anxiety Agents
- Anticonvulsants
- Calcium-Regulating Hormones and Agents
- Calcium Channel Blockers
- Pregabalin
Other Study ID Numbers
Other Study ID Numbers
- A0081256
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