A Randomized Study of Three Medication Regimens for Acute Low Back Pain

Overview[ - collapse ][ - ]

Purpose Low back pain causes 2.4% of visits to US emergency departments (ED) resulting in 2.7 million visits annually. In a general low back pain (LBP) population, prognosis is poor. About 50% of patients who visited general practitioners with new onset musculoskeletal LBP report persistent pain and functional disability three months after the index visit. Outcomes are similarly poor for the population of patients forced to use an ED for management of their LBP. In an observational study of patients with non-traumatic LBP recently completed at the PI's institution, patients were contacted one week after ED discharge: 70% reported persistent back-pain related functional impairment, 59% reported moderate or severe LBP, and 69% reported analgesic use within the previous 24 hours. Three months after the ED visit, 48% reported functional impairment, 42% reported moderate or severe pain, and 46% reported analgesic use within the previous 24 hours. A variety of evidence-based medications are available to treat LBP. Non-steroidal anti-inflammatory drugs (NSAID) are more efficacious than placebo with regard to pain relief, global improvement, and requirement of analgesic medication. Skeletal muscle-relaxants too are effective for short-term pain relief and global efficacy. Opioids are commonly used for moderate or severe acute LBP,(9) though high-quality evidence supporting this practice is lacking. Treatment of LBP with multiple concurrent medications is common in the ED setting. Emergency physicians often prescribe NSAIDs, skeletal muscle relaxants, and opioids in combination. Several clinical trials have compared combination therapy with NSAIDS+ skeletal muscle relaxants to monotherapy with just one of these agents. These trials have reported heterogeneous results. The combination of opioids + NSAIDS has not been evaluated experimentally in patients with acute LBP. Given the poor pain and functional outcomes that persist beyond an ED visit for musculoskeletal LBP, the investigators propose a clinical trial to evaluate whether combining muscle relaxants or opioids with NSAIDs is more effective than NSAID monotherapy for the treatment of non-traumatic, non-radicular low back pain. Specifically, the investigators will evaluate three distinct hypotheses: 1. The combination of naproxen + cyclobenzaprine will provide greater relief of LBP than naproxen alone seven days after an ED visit, as measured by the Roland Morris low back pain functional disability scale 2. The combination of naproxen + oxycodone/ acetaminophen will provide greater relief of LBP than naproxen alone seven days after an ED visit, as measured by the Roland Morris low back pain functional disability scale 3. The combination of naproxen + oxycodone/ acetaminophen will provide greater relief of LBP than naproxen + cyclobenzaprine seven days after an ED visit, as measured by the Roland Morris low back pain functional disability scale
ConditionAcute Low Back Pain
InterventionDrug: Naproxen
Drug: Cyclobenzaprine
Drug: Oxycodone/ acetaminophen
PhasePhase 4
SponsorMontefiore Medical Center
Responsible PartyMontefiore Medical Center
ClinicalTrials.gov IdentifierNCT01587274
First ReceivedApril 26, 2012
Last UpdatedMarch 25, 2014
Last verifiedMarch 2014

Tracking Information[ + expand ][ + ]

First Received DateApril 26, 2012
Last Updated DateMarch 25, 2014
Start DateApril 2012
Estimated Primary Completion DateMarch 2015
Current Primary Outcome MeasuresRoland Morris low back pain functional disability scale [Time Frame: 7 days after ER discharge] [Designated as safety issue: No]This questionnaire has 24 distinct questions which assess the impact of the low back pain on a patient's functionality
Current Secondary Outcome MeasuresNot Provided

Descriptive Information[ + expand ][ + ]

Brief TitleA Randomized Study of Three Medication Regimens for Acute Low Back Pain
Official TitleA Randomized Three-armed Comparative Effectiveness Study of Various Medications for Musculoskeletal Low Back Pain: Defining the Added Benefit of Muscle Relaxants and Opioids.
Brief Summary
Low back pain causes 2.4% of visits to US emergency departments (ED) resulting in 2.7
million visits annually. In a general low back pain (LBP) population, prognosis is poor.
About 50% of patients who visited general practitioners with new onset musculoskeletal LBP
report persistent pain and functional disability three months after the index visit.
Outcomes are similarly poor for the population of patients forced to use an ED for
management of their LBP. In an observational study of patients with non-traumatic LBP
recently completed at the PI's institution, patients were contacted one week after ED
discharge: 70% reported persistent back-pain related functional impairment, 59% reported
moderate or severe LBP, and 69% reported analgesic use within the previous 24 hours. Three
months after the ED visit, 48% reported functional impairment, 42% reported moderate or
severe pain, and 46% reported analgesic use within the previous 24 hours.

A variety of evidence-based medications are available to treat LBP. Non-steroidal
anti-inflammatory drugs (NSAID) are more efficacious than placebo with regard to pain
relief, global improvement, and requirement of analgesic medication. Skeletal
muscle-relaxants too are effective for short-term pain relief and global efficacy. Opioids
are commonly used for moderate or severe acute LBP,(9) though high-quality evidence
supporting this practice is lacking.

Treatment of LBP with multiple concurrent medications is common in the ED setting. Emergency
physicians often prescribe NSAIDs, skeletal muscle relaxants, and opioids in combination.
Several clinical trials have compared combination therapy with NSAIDS+ skeletal muscle
relaxants to monotherapy with just one of these agents. These trials have reported
heterogeneous results. The combination of opioids + NSAIDS has not been evaluated
experimentally in patients with acute LBP.

Given the poor pain and functional outcomes that persist beyond an ED visit for
musculoskeletal LBP, the investigators propose a clinical trial to evaluate whether
combining muscle relaxants or opioids with NSAIDs is more effective than NSAID monotherapy
for the treatment of non-traumatic, non-radicular low back pain. Specifically, the
investigators will evaluate three distinct hypotheses:

1. The combination of naproxen + cyclobenzaprine will provide greater relief of LBP than
naproxen alone seven days after an ED visit, as measured by the Roland Morris low back
pain functional disability scale

2. The combination of naproxen + oxycodone/ acetaminophen will provide greater relief of
LBP than naproxen alone seven days after an ED visit, as measured by the Roland Morris
low back pain functional disability scale

3. The combination of naproxen + oxycodone/ acetaminophen will provide greater relief of
LBP than naproxen + cyclobenzaprine seven days after an ED visit, as measured by the
Roland Morris low back pain functional disability scale
Detailed DescriptionNot Provided
Study TypeInterventional
Study PhasePhase 4
Study DesignAllocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
ConditionAcute Low Back Pain
InterventionDrug: Naproxen
Naproxen 500mg twice/ day x 10 days
Drug: Cyclobenzaprine
Cyclobenzaprine 5-10mg three times/ day x 10 days
Drug: Oxycodone/ acetaminophen
Oxycodone 5-10mg/ Acetaminophen 325-650 mg three times/ day x 10 days
Study Arm (s)
  • Active Comparator: Opioid
    Naproxen + opioid
  • Active Comparator: Skeletal muscle relaxant
    Naproxen + skeletal muscle relaxant
  • Active Comparator: Naproxen alone
    Naproxen + placebo

Recruitment Information[ + expand ][ + ]

Recruitment StatusRecruiting
Estimated Enrollment323
Estimated Completion DateMarch 2015
Estimated Primary Completion DateDecember 2014
Eligibility Criteria
Inclusion Criteria:

- Non-radicular, non-traumatic low back pain of no more than 2 weeks duration

Exclusion Criteria:

- Back pain longer than 2 weeks

- Prior to the acute attack of low back pain, back pain once per month or more
frequently

- Prior to the acute attack of low back pain, daily or near daily use of pain
medication
GenderBoth
Ages21 Years
Accepts Healthy VolunteersNo
ContactsNot Provided
Location CountriesUnited States

Administrative Information[ + expand ][ + ]

NCT Number NCT01587274
Other Study ID NumbersLow Back Pain RCT
Has Data Monitoring CommitteeYes
Information Provided ByMontefiore Medical Center
Study SponsorMontefiore Medical Center
CollaboratorsNot Provided
Investigators Not Provided
Verification DateMarch 2014

Locations[ + expand ][ + ]

Montefiore Medical Center
Bronx, New York, United States, 10467
Contact: Benjamin W Friedman, MD, MS | 718-920-6626 | befriedm@montefiore.org
Recruiting