NCT04828330

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

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
416

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Mar 2021

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 22, 2021

Completed
3 days until next milestone

Study Start

First participant enrolled

March 25, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

April 2, 2021

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 24, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 24, 2024

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

November 19, 2025

Completed
Last Updated

November 19, 2025

Status Verified

November 1, 2025

Enrollment Period

3.6 years

First QC Date

March 22, 2021

Results QC Date

October 21, 2025

Last Update Submit

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

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

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

Location

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

Low Back Pain

Condition Hierarchy (Ancestors)

Back PainPainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

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

  • Pradeep Suri, MD

    VA Puget Sound Health Care System Seattle Division, Seattle, WA

    PRINCIPAL INVESTIGATOR

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

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.

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

Locations