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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03756519
Other study ID # REH-715-18
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date May 1, 2018
Est. completion date November 30, 2018

Study information

Verified date March 2019
Source Queen's University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Low back pain (LBP) is the leading contributor to years lived with disability and an important contributor to healthcare costs and time off work. Exercise is effective for chronic low back pain, but there is a lack of evidence to inform whether exercise in the emergency department is effective for people with acute low back pain. This randomized controlled trial will evaluate the effectiveness of a brief exercise intervention provided in the emergency department for people with recent onset low back pain. People with acute low back pain (<1 week) will be randomly assigned to either usual care or to usual care plus a brief exercise intervention delivered by trained physiotherapy students. The study will evaluate the impact of the added exercises on self-reported disability (primary outcome), pain intensity, global rating of change, patient satisfaction, and adverse events. In addition, we will pilot data collection related to return to work, healthcare utilization, and cost effectiveness outcomes to determine the feasibility of conducting a future trial with additional patient participants required to evaluate these outcomes. Outcomes will be evaluated at baseline, 48-72 hours, 1-week, 1-month, and 3-months from their initial emergency department visit. The results of this study have the potential to inform emergency department management of acute low back pain.


Description:

Low back pain (LBP) is the leading contributor to years lived with disability and an important contributor to healthcare costs and time off work. Exercise is effective for chronic low back pain, but there is a lack of evidence to inform whether exercise in the emergency department is effective for people with acute (<1 week) low back pain.

The objectives of this randomized controlled trial are:

1. To determine the effectiveness of an exercise intervention delivered in the ED in comparison to usual ED care on pain, function, global rating of change, patient satisfaction, and adverse effects in adults with recent onset LBP (< 1 week).

2. To determine the feasibility of a future RCT to evaluate the effects of the ED exercise intervention on return to work outcomes, health care utilization, and cost-effectiveness in comparison to usual care.

The investigators hypothesize that an exercise intervention in the ED will improve pain, function, global rating of change, and patient satisfaction in comparison to usual ED care with no difference in adverse effects.

Design: A randomized controlled trial (RCT) with two parallel arms (exercise and usual care).

Blinding: The patient will be partially blinded by our not providing full details on the two exercise approaches being studied. The health care providers delivering the interventions will not be blinded due to the nature of the intervention. However, research assistants administering the outcome measures will be blinded. The outcomes assessed are objective measures assessed using an online survey tool that will be free of assessor bias.

Randomization and allocation concealment: Participants will be randomized in a 1:1 ratio to exercise or usual care groups by an independent statistician using a computerized random number generator. The random allocation will be placed in sequentially numbered opaque envelopes. The envelopes will be opened by the RA after completion of baseline assessment.

Patient enrollment: Consecutive patients with acute LBP who are seeking urgent care at Kingston General Hospital Emergency Department (ED) and Hotel Dieu Hospital Urgent Care Clinic (UCC) will be invited to participate over a 4-month period May 1 through August 31, 2018). ED based research staff will screen patients for willingness to be invited to participate when they arrive at the ED. These staff will then invite participation once the physician assessment is complete and eligibility criteria are reviewed.

Inclusion criteria: English speaking adults (18-65 years) with recent onset LBP (<1 week).

Exclusion criteria: people with subacute/chronic LBP, previous episode of back pain in the past 3 months, fracture, previous back surgery, red flags (e.g. urinary retention, bilateral or multilevel neurological impairment), traumatic mechanism of injury (fall >3m or 3 steps, MVC >100km/h).

Assessment and outcome measures: All measures will be collected using Qualtrics, a secure online database, at baseline, 48-72 hours, 1-week, 1-month, and 3-months.

Baseline factors used to describe the population: age, gender, duration of back pain (hours), whether there have been previous episodes of back pain, whether or not the participant has pain in other areas of the body, medications, comorbidities, work status prior to onset of back pain, and current work status.

Objective #1: Individual health outcomes will be collected using validated tools described under the outcomes assessed.

Objective #2: This study design will not have adequate power or long-term follow-ups required to adequately evaluate return to work, healthcare use, and cost-effectiveness. The investigators plan to pilot the use of these outcomes to determine the feasibility of conducting a future trial to evaluate these outcomes.

Analysis: For objective #1, Repeated-measure linear mixed models will be used to assess the effect of treatment (exercise versus usual care) on our primary (disability) and secondary (pain, global rating of change, patient satisfaction, adverse effects) outcomes at all time-points (48-72 hours, 1-week, 1- and 3-months). A difference of 2 on the NPRS36 and 3 points on the RMDQ37 will be considered clinically meaningful. For objective #2, all feasibility outcomes will be reported descriptively and analyzed qualitatively as recommended by methods and reporting guidelines for pilot and feasibility studies.

Sample size: The investigators searched one year of ED and UCC records to identify LBP patients eligible for this study. 2000 patients/year attended for back pain with > 500 during our four-month recruitment period. Of these, a chart review suggests 43% of these met our eligibility criteria. Based on past trials in these settings, we expect at least 50% will consent resulting in a sample size of 107+. This will achieve over 90% power to detect a minimally important difference of 3 points on the RMQ, using a two-sided α=0.05 and assuming a standard deviation of 6.2 points and accounting for a 10% loss to follow-up. This will also provide an adequate sample to assess the secondary feasibility objectives.


Recruitment information / eligibility

Status Completed
Enrollment 69
Est. completion date November 30, 2018
Est. primary completion date November 30, 2018
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria:

- English speaking

- Adults (18-65 years)

- Recent onset low back pain (<1 week)

Exclusion Criteria:

- Subacute/chronic LBP (> 1week)

- Previous episode of low back pain in past 3 months

- fracture

- previous back surgery

- urinary retention

- saddle anaesthesia

- bilateral or multilevel neurological impairment

- traumatic mechanism of injury (fall >3m or 3 steps, MVC >100km/h).

Study Design


Related Conditions & MeSH terms


Intervention

Behavioral:
Exercise
A standardized exercise program tailored to the individual based on their directional preferences and current functional abilities.
Advice to stay active and engaged in usual activities.
Participants will be advised that staying physically active and continuing to participate in usual activities improves recovery. This verbal advice will be reinforced with a written handout.
Advice on use of ice or heat
Participants will be advised on the appropriate use of ice or heat to manage pain. This verbal advice will be reinforced with a written handout.
Other:
Advise regarding use of medications
Participants will receive education regarding the use of non-steroidal anti-inflammatory medications (NSAIDs) for pain relief, if needed and if the patient is appropriate for NSAIDs. Information regarding specific recommended doses, potential benefit and risk will be discussed.

Locations

Country Name City State
Canada Kingston Health Sciences Center - Kingston General Hospital and Hotel Dieu Hospital Sites Kingston Ontario

Sponsors (1)

Lead Sponsor Collaborator
Queen's University

Country where clinical trial is conducted

Canada, 

Outcome

Type Measure Description Time frame Safety issue
Primary Self-reported disability Roland Morris Questionnaire (0-24, higher represents greater disability) Change from baseline to 3-months with repeated measures at baseline, 1-week, 1-month, 3-months and a primary comparison at 1-week
Secondary Pain Intensity currently Numeric pain rating scale (0-10, higher represents greater pain intensity) Change from baseline to 3-months with repeated measures at baseline, 1-week, 1-month, 3-months and a primary comparison at 1-week
Secondary Pain intensity on average over past 24-hours Numeric pain rating scale (0-10, higher represents greater pain intensity) Change from baseline to 3-months with repeated measures at baseline, 1-week, 1-month, 3-months and a primary comparison at 1-week
Secondary Pain intensity at its worst over the past 24-hours Numeric pain rating scale (0-10, higher represents greater pain intensity) Change from baseline to 3-months with repeated measures at baseline, 1-week, 1-month, 3-months and a primary comparison at 1-week
Secondary Pain intensity at its least over the past 24-hours Numeric pain rating scale (0-10, higher represents greater pain intensity) Change from baseline to 3-months with repeated measures at baseline, 1-week, 1-month, 3-months and a primary comparison at 1-week
Secondary Global rating of change Perceived change in function (-5 to +5, higher represents greater improvement in function) 1-week, 1-month, 3-months with a primary comparison at 1-week
Secondary Patient satisfaction Satisfaction with healthcare received (-5 to +5, higher represents greater satisfaction with care) 1-week, 1-month, 3-months with a primary comparison at 1-week
Secondary Adverse effects Self-reported adverse effects of treatment 1-week, 1-month, 3-months with a primary comparison at 1-week
Secondary Treatment fidelity A fidelity checklist performed by the physiotherapy students carrying out the intervention will be included as a process outcome. At initial visit
Secondary Recruitment rate (to determine feasibility for future trial on healthcare utilization, cost-effectiveness and return to work) Rate of recruitment (number of participants/week over recruitment period) Recruitment rate over 4 month period
Secondary Retention rate (to determine feasibility for future trial) Rate of assessment completion Baseline, 1-week, 1-month, 3-months with a primary time-point of 3-month follow-up
Secondary Work status - working or not working (piloted to determine the feasibility of conducting a future trial evaluating return to work outcomes) Work status (working/not working) Baseline, 1-week, 1-month, 3-months with a primary time-point of 1-week
Secondary Work status - full or part time (piloted to determine the feasibility of conducting a future trial evaluating return to work outcomes) Work status (full/part-time) Baseline, 1-week, 1-month, 3-months with a primary time-point of 1-week
Secondary Work status - full or modified duties/hours(piloted to determine the feasibility of conducting a future trial evaluating return to work outcomes) Work status - full/modified duties or hours Baseline, 1-week, 1-month, 3-months with a primary time-point of 1-week
Secondary Work status - hours worked (piloted to determine the feasibility of conducting a future trial evaluating return to work outcomes) Number of hours worked in past seven days. Baseline, 1-week, 1-month, 3-months with a primary time-point of 1-week
Secondary Healthcare utilization (piloted to determine the feasibility of conducting a future trial evaluating healthcare utilization) Self-report questoinnaire asking patient to report primary care visits, emergency room visits, hospitalizations, surgeries, consultations with other health care providers (e.g. physiotherapists, chiropractors, physician specialists, diagnostic imaging (e.g. x-ray, CT scan, MRI), and medication 1-week, 1-month, 3-months with a primary time-point of 3-months
Secondary Costs (piloted to determine the feasibility of conducting a cost-effectiveness analysis in a future trial) Includes all healthcare costs as well as societal costs using a human capital approach All costs incurred between baseline and 3-month follow-up will be calculated
Secondary Quality of life (piloted to determine feasibility of performing cost-effectiveness analysis in a future trial) EuroQOL 5D-5L (0-100 with greater score indicating greater quality of life) Change from baseline to 3-months with repeated measures at baseline, 1-week, 1-month, 3-months and a primary time-point of 3-months
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