Flares of Low Back Pain With Activity Research Study
FLAReS
Effects of Physical Activities on Pain and Functional Recovery in Low Back Pain
2 other identifiers
observational
416
1 country
1
Brief Summary
Low back pain (LBP) is the most common cause of disability worldwide. Although general activity is encouraged in the treatment of LBP, there is limited empirical information available on the specific types of activities that are beneficial or harmful for patients seen in primary care for LBP. This study will identify those physical activities with short-term (transient) effects on LBP exacerbations (or "flares" of LBP), as well as identifying the long-term (cumulative) effects of such activities on functional recovery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Mar 2021
Typical duration for all trials
1 active site
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
First Submitted
Initial submission to the registry
March 22, 2021
CompletedStudy Start
First participant enrolled
March 25, 2021
CompletedFirst Posted
Study publicly available on registry
April 2, 2021
CompletedPrimary Completion
Last participant's last visit for primary outcome
October 24, 2024
CompletedStudy Completion
Last participant's last visit for all outcomes
October 24, 2024
CompletedResults Posted
Study results publicly available
November 19, 2025
CompletedNovember 19, 2025
November 1, 2025
3.6 years
March 22, 2021
October 21, 2025
November 5, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Participant-reported "Flares" of Low Back Pain (Aim 1)
At each study assessment, participants are presented with the flare definition used in this study, which was derived from a previously validated flare definition by Costa et al (2000). The definition is: "A 'flare' of low back pain is a worsening of your low back pain that lasts from hours to weeks". Participants are then asked to self-report whether a flare of low back pain is currently ongoing, by responding to the question "According to the definition above, are you currently experiencing a flare of your low back pain?", with response options of "yes" or "no". These response options define participant-reported flares.
Flares over 1-year follow-up
Roland-Morris Disability Questionnaire (Aim 2)
Roland-Morris Disability Questionnaire (RMDQ) is a back-specific measure of functional limitations ranging from 0 to 24, where 0 reflects no disability and 24 reflects severe disability.
1-year follow-up
Study Arms (1)
Observational cohort
This is a case-crossover study nested within a cohort study.
Eligibility Criteria
Veterans age 18-65 years seen in VA primary care for LBP
You may qualify if:
- Veterans age 18-65 years seen in VA primary care for LBP
- Must have regular access (every day, during most hours of the day) to a computer, tablet, or smartphone with internet access at home or at work
- Basic computer literacy
- Having a mobile phone capable of receiving alerts using text messages
- Must be able to understand and read English, sufficient to provide informed consent and validly complete the study assessments.
- Participants must complete basic requirements during a 2-week run-in period, such as completing e-Questionnaires
You may not qualify if:
- Red flag' spine conditions (spinal cord injury, infection, malignancy, fracture) or spondyloarthropathy
- Pregnancy
- Prisoners or incarcerated
- Severe active medical or psychiatric comorbidities likely to be a barrier to study participation including completing frequent, serial assessments (e.g., metastatic cancer).
- Thoracolumbar spine surgery in the past 1 year
- Other major orthopedic surgery potentially impeding normal physical activities (such as surgeries involving the hip, knee, ankle, shoulder, elbow, wrist joints) within the past 6 months, or major abdominal or chest surgery within the past 6 months.\*
- Planned major orthopedic, abdominal, or chest surgery in the next 2 months.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
VA Puget Sound Health Care System Seattle Division, Seattle, WA
Seattle, Washington, 98108-1532, United States
Related Publications (1)
Suri P, Tanus AD, Torres N, Timmons A, Irimia B, Friedly JL, Korpak A, Daniels C, Morelli D, Hodges PW, Costa N, Day MA, Heagerty PJ, Jensen MP. The Flares of Low back pain with Activity Research Study (FLAReS): study protocol for a case-crossover study nested within a cohort study. BMC Musculoskelet Disord. 2022 Apr 21;23(1):376. doi: 10.1186/s12891-022-05281-1.
PMID: 35449043BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Limitations and Caveats
This was a purely observational study. It was not a randomized trial. Due to the purely observational nature of the study, no adverse event data is provided, as no adverse event monitoring was conducted.
Results Point of Contact
- Title
- Dr. Pradeep Suri
- Organization
- VA Puget Sound Health Care System
Study Officials
- PRINCIPAL INVESTIGATOR
Pradeep Suri, MD
VA Puget Sound Health Care System Seattle Division, Seattle, WA
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- observational
- Observational Model
- CASE CROSSOVER
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- FED
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 22, 2021
First Posted
April 2, 2021
Study Start
March 25, 2021
Primary Completion
October 24, 2024
Study Completion
October 24, 2024
Last Updated
November 19, 2025
Results First Posted
November 19, 2025
Record last verified: 2025-11
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
- Time Frame
- The investigators will endeavor to be able to share IPD when requested by 6 months after the time of publication of the main study findings and publication of longer-term results of the study, provided that appropriate enterprise-level procedures permit this and are in place at the time of.
- Access Criteria
- The study team and PI will review each request for IPD, with involvement of local administrative officials or ORD officials as appropriate. Requests will be evaluated for criteria including data safety, the purpose of analyses warranting potential risks of transferring data, security of the transfer. An agreement will specify the duration of time for data to be held before
Only completely deidentified/anonymized versions of datasets would be shared, provided that appropriate VA enterprise-level procedures permit this and are in place at the time of. These procedures do not currently exist but are expected in the future. Sharing would only take place under a written agreement prohibiting the recipient from identifying or re-identifying (or taking steps to identify or re-identify) any individual whose data are included in the dataset, and would require a properly submitted FOIA request. Due to the project's waiver of HIPAA authorization, a subset of the data cannot be disclosed to a non-Federal entity. Electronic versions of final data sets will be maintained locally in a secure manner until enterprise-level resources become available for long-term storage.