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Lower Back PainPhase 4NCT02335047

Investigation of the Putative Correlation Between Involuntary Psoas Activity During Passive Flexion of the Trunk at the Hips

A Phase 4 study testing Impaired passivity test in people with Lower Back Pain, run by University Hospital, Strasbourg, France.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Passive flexion of the trunk (relative to the legs) may be accompanied by contraction of the psoas muscles, even when the subject has been told not to contract any muscles. The psoas contraction is involuntary and cannot be controlled by the subject. Read more about this study

Who is it for?
Ages 18 to 30 yearsHealthy volunteers can take part
Conditions the study is for
Lower Back Pain
What is being tested?
Impaired passivity test
Could I receive a placebo?
No, everyone receives an active treatment
How many people
90 participants
Where
No sites listed yet
Study dates
Jan 2015to Feb 2015
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 30 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Age between 18 and 30
  • Social security coverage
  • Ability to understand the study's objectives, procedures and risks and to provide informed, written consent
  • Having been informed about the results of the prior clinical examination.

Who cannot join

  • Past or concomitant infectious or cancerous diseases of the spine
  • Vertebral osteosynthesis
  • Acute neck or arm pain (recurrent dislocations of the glenohumeral joint, trauma in the previous 12 months, etc.)
  • Lower back pain with irradiation of pain below the buttocks
  • Known specific lower back pain or pain for which a differential diagnosis suggests an inflammatory, traumatic, cancerous or infectious cause
  • Subjects under legal guardianship
  • Known pregnancy
  • Simultaneous participation in another biomedical research study of a drug or medical device.

About this study

Official title: The Putative Correlation Between Impaired Hip Flexor Passivity and Common Lower Back Pain: a Pilot Study.

Passive flexion of the trunk (relative to the legs) may be accompanied by contraction of the psoas muscles, even when the subject has been told not to contract any muscles. The psoas contraction is involuntary and cannot be controlled by the subject. This lack of passivity might be concomitant with lower back pain: the impairment may be present when lower back pain is present and/or absent when lower back pain is absent.

The study's primary objective is thus to determine the sensitivity and/or specificity of a clinical test for impaired hip flexor passivity in cases of lower back pain during passive flexion of the trunk (from the supine position,).

The secondary objective is to show that a negative test (after administration of correcting measures) is correlated with a decrease in pain (i.e. pain intensity and the functional repercussions of pain).

Conditions
Lower Back Pain
Being tested
Impaired passivity test
Keywords
reliability, clinical test, physical therapy
Medical subject headings
Low Back Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Impaired passivity testOther

    Description of the test: the subject lies in the supine position on an exercise mat with his/her feet together. The subject is told to let his/her arms rest loosely by his/her side (as if they were ropes) and to keep the head aligned with the back. The examiner pulls the subject into the sitting position by pulling on the subject's wrists, with passive flexion of the trunk until the hip joint is fully flexed..

Study groups in NCT02335047
Study groupRoleWhat they receive
lower back painOtherNot described
Receives: Other: Impaired passivity test

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Qualitative evaluation of impaired psoas muscle passivity during passive flexion of the trunk at the hips (while sitting).

    Measured: Visit 1 (Day 0)

Secondary outcomes (1)
  1. - A visual analog scale for pain

    Measured: - Visit 0 (Day 0: inclusion visit)

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted9 Jan 2015 (estimated)
  2. Study startJan 2015
  3. Primary completionFeb 2015
  4. Study completionFeb 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
90 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02335047
Sponsor's protocol ID
5898
Status last verified
Oct 2015
First submitted
15 Dec 2014
Last updated
2 Oct 2015
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Impaired passivity test in people with Lower Back Pain, run by University Hospital, Strasbourg, France.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Oct 2015. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Qualitative evaluation of impaired psoas muscle passivity during passive flexion of the trunk at the hips (while sitting). (time frame: Visit 1 (Day 0)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Oct 2015.

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