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Cerebrovascular AccidentNCT04607486

Investigation of Changes in Lower Limb Muscles After Cerebrovascular Accident

An observational study of Cerebrovascular Accident, run by Universitaire Ziekenhuizen KU Leuven at 1 site in Belgium.

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

The aim of this study is to investigate lower limb muscles after cerebrovascular accident Read more about this study

Who is it for?
Ages 18 to 100 yearsHealthy volunteers can take part
Conditions the study is for
Cerebrovascular Accident
What is being tested?
3DfUS and IPSA of leg muscles
How many people
76 participants
Where
1 siteBelgium
Study dates
18 Jun 2018to 30 Dec 2023
How long will I take part?
1 Day
Phase
Observational
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 100 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Adults with first ever chronic stroke: = First ever stroke subjects with established spasticity and without spasticity will be recruited on the stroke rehabilitation unit and outpatient rehabilitation clinic, University Hospital of Leuven. Healthy control subjects = Healthy age-and gender matched subjects will be recruited among healthy university staff of the University Hospital of Leuven, their family and friends.

Who may be able to join

  • Definition of case population :
  • o first ever stroke with spasticity of the lower limb.
  • Definition of control :
  • first ever stroke without spasticity of the lower limb
  • healthy aged-matched subjects

Who cannot join

  • Musculoskeletal or neurological problems affecting the lower limb
  • Presence of other neurological pathology that could lead to spasticity, ataxia, dystonia
  • Cognitive problems that impede measurements
  • Severe co-morbidities
  • Peripheral spastic medication

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • UZ Leuven

    Leuven, 3000

Other trials in Belgium

About this study

Official title: Reliability Study of a 3D Free-hand Ultrasonography Technique (3DfUS) in Combination With Instrumented Spasticity Assessment (ISA) for the Lower Limb in Chronic First-ever Stroke Patients.

The aim of this study is to investigate lower limb muscles after cerebrovascular accident

Read the detailed description

The aim of this study is to define and differentiate the changes in MMT properties related to the alterations in muscle tone of the lower limb in first-ever chronic stroke patients by using a 3D free-hand Ultrasonography (3DfUS) technique in combination with an instrumented spasticity assessment (IPSA). In these chronic stroke patients, the spontaneous neurological recovery is stabilized

Being tested
3DfUS and IPSA of leg muscles
Medical subject headings
Stroke

What participants receive

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

  • 3DfUS and IPSA of leg musclesDiagnostic test

    Also called clinical functional capacity

    1. 3DfUS technique enhances a conventional 2D US device into a platform capable of reconstructing 3D anatomical data sets.
    2. IPSA for quantification of hyper-resistance and its underlying components. The sensors in the IPSa include gyroscopes and accelerometers to measure joint angle and angular velocity, EMG to measure muscle activity, and a 3 degrees-of freedom force sensor to measure torque applied on the joint.
    3. clinical functional capacity = clinical evaluation of degree of independence, mobility and gait
Study groups in NCT04607486
Study groupRoleWhat they receive
CVA and spasticityAdults with first-ever chronic CVA and leg spasticity
Receives: Diagnostic Test: 3DfUS and IPSA of leg muscles
CVA without spasticityControl group
Receives: Diagnostic Test: 3DfUS and IPSA of leg muscles
healthy subjectsControl group
Receives: Diagnostic Test: 3DfUS and IPSA of leg muscles

What is being measured

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

  1. Muscle volume

    Estimation of muscle volume by 3D freehand ultrasonography.

    Measured: 1 day

  2. Muscle and Tendon Length

    Estimation of muscle volume by 3D freehand ultrasonography

    Measured: 1 day

  3. Echogenicity intensity

    Estimation of echogenicity intensity by 3D freehand ultrasonography on an 8-bit greyscale (256 values).

    Measured: 1 day

  4. Work [J] derived from the slow stretch

    Measurement of Work [J] by Instrumented Spasticity Assessment

    Measured: 1 day

  5. Muscle activity EMG [uV] derived from the fast stretch

    Measurement of Muscle activity EMG [uV] by Instrumented Spasticity Assessment

    Measured: 1 day

  6. Maximal velocity of performance (Vmax [deg/s])

    Measurement of Maximal velocity of performance (Vmax [deg/s]) by Instrumented Spasticity Assessment

    Measured: 1 day

  7. Range of motion [deg] for slow stretch

    Measurement of Range of motion [deg] by Instrumented Spasticity Assessment

    Measured: 1 day

  8. Stiffness [Nm/deg] for slow stretch

    Measurement of Stiffness [Nm/deg] by Instrumented Spasticity Assessment

    Measured: 1 day

  9. Joint angle of catch [deg] from the fast stretch

    Measurement of Joint angle of catch [deg] from the fast stretch by Instrumented Spasticity Assessment

    Measured: 1 day

  10. Angle of EMG threshold [deg] from the fast stretch

    Measurement of Angle of EMG threshold [deg] by Instrumented Spasticity Assessment

    Measured: 1 day

  11. Intensity of catch derived from the fast stretch

    Measurement of Intensity of catch by Instrumented Spasticity Assessment

    Measured: 1 day

Secondary outcomes (2)
  1. Clinical assessment of spasticity at fast stretch

    Estimation of spasticity by Modified Assessment Scale

    Measured: 1 day

  2. Clinical assessment of spasticity angle at slow and fast stretch

    Estimation of spasticity by Tardieu Scale

    Measured: 1 day

Timeline

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

  1. First posted29 Oct 2020
  2. Study start18 Jun 2018
  3. Primary completion31 Oct 2023
  4. Study completion30 Dec 2023

Resources

More details

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

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Cross-sectional
Enrolment
76 participants (actual)
Target duration
1 Day
IDs, dates and publications
ClinicalTrials.gov ID
NCT04607486
Sponsor's protocol ID
S60153
Status last verified
May 2024
First submitted
6 Aug 2020
Last updated
8 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

An observational study of Cerebrovascular Accident, run by Universitaire Ziekenhuizen KU Leuven at 1 site in Belgium.

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 5 inclusion and 5 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 8 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

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.

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?

Muscle volume (time frame: 1 day). The study lists 11 primary outcomes in all. 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 8 May 2024; AzTrials last refreshed its copy on 7 Nov 2026.

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