Orthopedic Disorder of SpineCSM PlasticityNCT03504254
A fMRI Study of Compressive Spinal Cord
An observational study of Orthopedic Disorder of Spine and Neurologic Disorder, run by The University of Hong Kong at 1 site in Hong Kong.
Trial summary
Cervical myelopathy (CM), a chronically compressive spinal cord lesion, is the most common cause of non-traumatic paraparesis/quadriparesis among the elderly. Hong Kong is facing a heavy social economic burden from CM with the rapidly aging population. Read more about this study
- Who is it for?
- Ages 18 to 90 years
- Conditions the study is for
- Orthopedic Disorder of Spine, Neurologic Disorder
- What is being tested?
- MRI examination
- How many people
- 50 participants
- Where
- 1 siteHong Kong
- Study dates
- 11 Jan 2012to 31 Dec 2019
- 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 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: A total of 50 CM patients requiring surgical decompression will be recruited.
Who may be able to join
- The inclusion criteria are a clinical diagnosis of CM including the signs of corticospinal lesion/s together with the appropriate radiographic findings.
Who cannot join
- Patients with acute spinal cord injuries, prior spinal intervention or claustrophobia will be excluded.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Plasticity of Chronically Compressive Spinal Cord After Surgical Decompression - A fMRI Study
Cervical myelopathy (CM), a chronically compressive spinal cord lesion, is the most common cause of non-traumatic paraparesis/quadriparesis among the elderly. Hong Kong is facing a heavy social economic burden from CM with the rapidly aging population. Surgical decompression is considered as the mainstay of the treatment for CM patients to relieve their symptoms and signs. Yet the surgical outcome is not always satisfactory. There is a pressing need for understanding the exact mechanism of surgical decompression on the recovery of myelopathic cord in order to improve the prognosis of CM patients in near future.This project will evaluate neuronal activities and axon regeneration by longitudinally monitoring at time zero, 3 and 6 month after the surgery in CM patients using UTE, BOLD-fMRI and DTI, and to investigate the relationship of preoperative neuronal activities of myelopathic cord with axon regeneration.
Read the detailed description
This study aims to monitor the structural and functional changes of chronically compressed spinal cords longitudinally after surgical decompression in vivo. Three kinds of MRI techniques will be used in this study. These are (1) axial T1-weighted (T1WI) and T2-weighted imaging (T2WI), UTE MRI, (2) BOLD-based fMRI, and (3) diffusion tensor imaging (DTI). To quantitatively investigate the structural deficits, T1/T2 MRIs will delineate the gross morphology of the spinal cord, CSF, and surrounding anatomical structures, while DTI will quantify the fiber orientation and integrity within the spinal cord. BOLD-based functional MRIs will assess the local hemodynamic changes and neuron activities in response to the motor or sensory stimulation along the C3 to C8 spinal nerve levels. The MRI evaluations will be applied to the same cervical myelopathy (CM) patient before surgery and 3 and 6 months post-surgery, when clinical recovery reaches a plateau9. Clinical examination will include neurological evaluation, Japanese Orthopaedic Association (JOA) scoring assessment, and clinical electrophysiological evaluation.
- Conditions
- Orthopedic Disorder of Spine, Neurologic Disorder
- Being tested
- MRI examination
- Keywords
- cervical spondylotic myelopathy, diffusion tensor imaging, functional magnetic resonance imaging
- Medical subject headings
- Nervous System Diseases
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MRI examinationDiagnostic test
Three kinds of MRI techniques will be used in this study. These are (1) axial T1-weighted (T1WI) and T2-weighted imaging (T2WI), UTE MRI, (2) BOLD-based fMRI, and (3) diffusion tensor imaging (DTI).
| Study group | Role | What they receive |
|---|---|---|
| CSM | A total of 50 CM patients requiring surgical decompression will be recruited. The inclusion criteria are a clinical diagnosis of CM including the signs of corticospinal lesions together with the appropriate radiographic findings. Patients with acute spinal cord injuries, prior spinal intervention or claustrophobia will be excluded. Receives: Diagnostic Test: MRI examination |
What is being measured
The primary outcome is the main question the study is designed to answer.
DTI indics
The mean diffusivities and fractional anisotropy will be measured in the DTI
Measured: Change between Enrollment and one year after surgery.
Secondary outcomes (1)
fMRI connextivity
Functional connectivity will be examined by calculating the averaged correlation coefficient of all regions of interest (ROIs) in gray matters.
Measured: Change between Enrollment and one year after surgery.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Apr 2018
- Study start11 Jan 2012
- Primary completion30 Nov 2019
- Study completion31 Dec 2019
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Orthopedic Disorder of SpineStudies of the same condition, open and under way.
- More trials run by The University of Hong KongThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Cohort
- Time perspective
- Prospective
- Enrolment
- 50 participants (actual)
Sponsor and investigators
- Lead sponsor
- The University of Hong Kong
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03504254
- Sponsor's protocol ID
- UW12-468
- Acronym
- CSM Plasticity
- Status last verified
- Sep 2019
- First submitted
- 5 Dec 2017
- Last updated
- 10 May 2023
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 10 May 2023. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Plasticity of Chronically Compressive Spinal Cord After Surgical Decompression - A fMRI Study
- ClinicalTrials.gov ID
- NCT03504254
- Acronym / sponsor ID
- CSM Plasticity / UW12-468
- Conditions
- Orthopedic Disorder of Spine, Neurologic Disorder
- Keywords
- cervical spondylotic myelopathy, diffusion tensor imaging, functional magnetic resonance imaging
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 50 participants (actual)
- Lead sponsor
- The University of Hong KongUniversity, hospital or other
- Study start
- 11 Jan 2012 (actual)
- Primary completion
- 30 Nov 2019 (actual)
- Study completion
- 31 Dec 2019 (actual)
- First posted
- 20 Apr 2018 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Cervical myelopathy (CM), a chronically compressive spinal cord lesion, is the most common cause of non-traumatic paraparesis/quadriparesis among the elderly. Hong Kong is facing a heavy social economic burden from CM with the rapidly aging population. Surgical decompression is considered as the mainstay of the treatment for CM patients to relieve their symptoms and signs. Yet the surgical outcome is not always satisfactory. There is a pressing need for understanding the exact mechanism of surgical decompression on the recovery of myelopathic cord in order to improve the prognosis of CM patients in near future.This project will evaluate neuronal activities and axon regeneration by longitudinally monitoring at time zero, 3 and 6 month after the surgery in CM patients using UTE, BOLD-fMRI and DTI, and to investigate the relationship of preoperative neuronal activities of myelopathic cord with axon regeneration.
Detailed description
This study aims to monitor the structural and functional changes of chronically compressed spinal cords longitudinally after surgical decompression in vivo. Three kinds of MRI techniques will be used in this study. These are (1) axial T1-weighted (T1WI) and T2-weighted imaging (T2WI), UTE MRI, (2) BOLD-based fMRI, and (3) diffusion tensor imaging (DTI). To quantitatively investigate the structural deficits, T1/T2 MRIs will delineate the gross morphology of the spinal cord, CSF, and surrounding anatomical structures, while DTI will quantify the fiber orientation and integrity within the spinal cord. BOLD-based functional MRIs will assess the local hemodynamic changes and neuron activities in response to the motor or sensory stimulation along the C3 to C8 spinal nerve levels. The MRI evaluations will be applied to the same cervical myelopathy (CM) patient before surgery and 3 and 6 months post-surgery, when clinical recovery reaches a plateau9. Clinical examination will include neurological evaluation, Japanese Orthopaedic Association (JOA) scoring assessment, and clinical electrophysiological evaluation.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| CSM | – | Diagnostic Test: MRI examinationA total of 50 CM patients requiring surgical decompression will be recruited. The inclusion criteria are a clinical diagnosis of CM including the signs of corticospinal lesions together with the appropriate radiographic findings. Patients with acute spinal cord injuries, prior spinal intervention or claustrophobia will be excluded. |
Who may qualify
- Ages
- 18 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- A total of 50 CM patients requiring surgical decompression will be recruited.
Key inclusion criteria (1 listed)
- The inclusion criteria are a clinical diagnosis of CM including the signs of corticospinal lesion/s together with the appropriate radiographic findings.
Key exclusion criteria (1 listed)
- Patients with acute spinal cord injuries, prior spinal intervention or claustrophobia will be excluded.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| MRI examinationThree kinds of MRI techniques will be used in this study. These are (1) axial T1-weighted (T1WI) and T2-weighted imaging (T2WI), UTE MRI, (2) BOLD-based fMRI, and (3) diffusion tensor imaging (DTI). | Diagnostic test | CSM |
Primary outcome
DTI indics
Time frame: Change between Enrollment and one year after surgery.
The mean diffusivities and fractional anisotropy will be measured in the DTI
1 secondary outcome
fMRI connextivity
Time frame: Change between Enrollment and one year after surgery.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 10 May 2023.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Orthopedic Disorder of Spine and Neurologic Disorder, run by The University of Hong Kong at 1 site in Hong Kong.
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 1 inclusion and 1 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 10 May 2023. 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 Hong Kong. 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?
DTI indics (time frame: Change between Enrollment and one year after surgery.). 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 10 May 2023.