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How many chiropractic visits work best for Veterans' back pain?

NCT ID NCT04087291

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 26, 2026 · Last updated Aug 12, 2026 · Updated 3 times

Summary

This completed study looked at how different amounts of chiropractic care affect chronic low back pain in 766 veterans. In the first phase, participants received either 1-5 or 8-12 visits over 10 weeks. Then, some continued with monthly maintenance visits for 10 months. The goal was to see which dose best reduces pain and disability, and how it affects overall healthcare use.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
chiropractic care (spinal manipulation, myofascial therapy, exercise, education)
What this could lead to
If successful, this could help determine the optimal number of chiropractic visits for managing chronic low back pain in veterans, potentially improving care guidelines.
What could go wrong
This is a completed pragmatic trial, so results are available. However, findings may not apply to non-veterans or those with different back pain causes. The study compares doses, not chiropractic versus no treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

766 people

The number who actually took part.

Started

Feb 2021

Finished

May 2025

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Veterans aged ≥ 18 years * Self-reported cLBP * Has low back related pain and disability * Able to comprehend study details without need for a proxy * Diagnostic confirmation of neuromusculoskeletal LBP * Willing and able to attend up to 1 year of outpatient chiropractic visits Exclusion Criteria: * Any condition prohibiting or contraindicating chiropractic care * Inability to complete outcomes and/or provide informed consent as determined by the site SC during the consent process * Established plans to move within 3 months * Under active chiropractic care * No phone * No email address * Participating in another study investigating treatment(s) for pain * Current or planned hospice care * Current or planned pregnancy

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Conditions

The condition(s) this trial relates to.

agnosia Bronchiolitis Obliterans Syndrome Low Back Pain Patient Acceptance of Health Care

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Iowa City VA Health Care System

    Iowa City, Iowa, 52246, United States

  • Minneapolis VA Health Care System

    Minneapolis, Minnesota, 55417, United States

  • VA Connecticut Healthcare System

    West Haven, Connecticut, 06516, United States

  • VA Greater Los Angeles Health Care System

    Los Angeles, California, 90073, United States

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