Comprehensive Biopsychosocial Approach for Acute Low Back Pain Management in the Emergency Department: a Stepped-wedge Cluster-randomized Clinical Trial
CALM-ED
2 other identifiers
interventional
782
0 countries
N/A
Brief Summary
Acute low back pain, the second leading cause of medical consultations in France, poses a major public health challenge, particularly because of its high risk of progressing to chronic low back pain-the leading cause worldwide of years lived with disability. Pharmacological treatments such as paracetamol, opioids, non-steroidal anti-inflammatory drugs (NSAIDs) and muscle relaxants show limited benefit in terms of pain intensity or functional disability. Non-pharmacological treatments, including exercise therapy and psychological support, show promising results but remain hampered by methodological biases and small sample sizes. A biopsychosocial approach that combines pharmacological treatments, physical therapy, psychological support and social interventions has demonstrated moderate improvements in pain and function for chronic low back pain but remains insufficiently studied for acute presentations. French guidelines advocate a combined strategy involving paracetamol, NSAIDs, physical activity and psychosocial risk assessment. However, a French multicentre retrospective study highlighted marked heterogeneity in clinical practice, along with a low adoption rate (\<10 %) of these recommendations in emergency departments, underscoring the need to strengthen adherence to evidence-based management strategies. We hypothesise that a multimodal intervention targeting physicians (guideline reminders) and patients (information on disease progression and multidisciplinary care plans), to enable the systematic implementation of all aspects of a biopsychosocial approach in emergency departments, could reduce short-term pain and disability in patients with acute low back pain.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Jan 2026
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 15, 2026
CompletedFirst Submitted
Initial submission to the registry
January 21, 2026
CompletedFirst Posted
Study publicly available on registry
January 29, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
January 15, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
March 15, 2027
January 29, 2026
January 1, 2026
1 year
January 21, 2026
January 21, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Pain Interference Score at 7 days
Pain interference score at 7 days, assessed using the Pain Interference subscale of the Brief Pain Inventory - Short Form (BPI-SF). The score is calculated as the mean of 7 items (each rated 0-10) and reported on a 0-100 scale
7 days
Secondary Outcomes (7)
Pain intensity at 7 days, measured by the BPI SF intensity score.
7 days
Number of pain-free days after the emergency department visit
7 days
Total amount of opioids consumed
7 days and 3 months
Number of days off work
7 days and 3 months.
Functional disability
3 months
- +2 more secondary outcomes
Study Arms (2)
Control group
NO INTERVENTIONUsual care - Standard care for acute non-specific low back pain at clinician's discretion
Intervention group
EXPERIMENTALBiopsychosocial approach
Interventions
The biopsychosocial intervention consists of a structured program implemented in participating emergency departments. It includes a standardized 3-hour online training session for physicians covering evidence-based management of acute low back pain, rational pharmacological use, promotion of physical activity, and consideration of psychosocial factors. A summary sheet will be given with key recommendations during the period. For patients, short educational materials provide information on typical recovery, self-management strategies, and appropriate follow-up. The intervention is introduced sequentially across 12 centers according to a stepped-wedge randomization schedule, with each site moving from control to intervention while maintaining standard emergency care.
Eligibility Criteria
You may qualify if:
- Patients aged 18 to 55 presenting to a participating emergency department, and
- Presenting with acute non-traumatic low back pain, newly developed or worsened within the past 7 days.
- Moderate to severe pain, defined as a score of ≥4 on a 0-10 numerical rating scale.
- Provision of informed consent after being given the information sheet.
- Patients covered by social security (excluding AME).
You may not qualify if:
- Presence of a 'red flag' according to HAS guidelines, including: motor neurological deficit or cauda equina syndrome, non-mechanical pain, trauma, active neoplastic disease or history of inflammatory rheumatism, suspected osteoarticular infection, recent spinal surgery with worsening symptoms, suspected acute vascular pathology, prolonged use of medications or corticosteroids, significant structural spinal deformity, or deterioration of general health.
- Inability to attend the 3-month follow-up.
- Poor command of French.
- Patient under guardianship/curatorship or deprived of liberty.
- Pregnant or breastfeeding women
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Officials
- PRINCIPAL INVESTIGATOR
Héloïse BANNELIER, Doctor
Assistance Publique - Hôpitaux de Paris
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- HEALTH SERVICES RESEARCH
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 21, 2026
First Posted
January 29, 2026
Study Start
January 15, 2026
Primary Completion (Estimated)
January 15, 2027
Study Completion (Estimated)
March 15, 2027
Last Updated
January 29, 2026
Record last verified: 2026-01
Data Sharing
- IPD Sharing
- Will not share