The NORDSTEN Studies/The Observational Cohort Study (NORDSTEN/OS)
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT03562936 |
Recruitment Status :
Active, not recruiting
First Posted : June 20, 2018
Last Update Posted : August 16, 2021
|
Tracking Information | |||||||
---|---|---|---|---|---|---|---|
First Submitted Date | May 31, 2018 | ||||||
First Posted Date | June 20, 2018 | ||||||
Last Update Posted Date | August 16, 2021 | ||||||
Actual Study Start Date | February 2014 | ||||||
Estimated Primary Completion Date | October 2028 (Final data collection date for primary outcome measure) | ||||||
Current Primary Outcome Measures |
Oswestry Disability Index (ODI) version 2.0 [ Time Frame: Baseline and follow-up at 2,5 and 10 years ] ODI is a patient reported outcome measure (PROM) comprising 10 sections where the patient is supposed to mark the most appropriate item. ODI scores range from 0 to 100, with higher score indicating more severe pain and disability. ODI is recommended by international expert panels for the evaluation of disability in clinical trials and commonly used by physicians treating patients with back-related symptoms. It has been translated and validated for applications with Norwegian patients. The change in ODI from baseline to follow-up will be registered.
|
||||||
Original Primary Outcome Measures | Same as current | ||||||
Change History | |||||||
Current Secondary Outcome Measures |
|
||||||
Original Secondary Outcome Measures | Same as current | ||||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||||
Descriptive Information | |||||||
Brief Title | The NORDSTEN Studies/The Observational Cohort Study | ||||||
Official Title | Prospective Observational Cohort Study of Patients With Symptomatic Degenerative Spinal Stenosis With and Without Degenerative Spondylolisthesis Not Scheduled for Surgery | ||||||
Brief Summary | The NORDSTEN- OS(Observational study) aim to study the natural course in patients with mild to moderate symptomatic lumbar spinal stenosis with and without degenerative spondylolisthesis. 10 years follow-up is planned. The NORDSTEN-OS is one of three studies in The NORwegian Degenerative Spondylolisthesis and Spinal STENosis studies. The two other studies are: NORDSTEN-SST (Spinal stenosis trial) (NCT02007083); a randomized controlled trial comparing the clinical and radiological results in three different decompression techniques in patients with lumbar spinal stenosis. The NORDSTEN-DS (Degenerative spondylolisthesis) (NCT02051374); a randomized controlled trial comparing the outcome of surgery with decompression without fixation and decompression with fixation in patients with lumbar spinal stenosis and concurrent degenerative spondylolisthesis. |
||||||
Detailed Description | Objectives:
Baseline data Demographical data: Age, gender, BMI, education and native language. Status regarding: marriage, smoking, work and disability benefits. Clinical data: duration of symptoms (back pain and leg pain) and use of analgetics, Patient reported outcome measures: Oswestry Disability Index (ODI 2.0), Zurich Claudication Questionnaire, EQ-5D and Numeric Rating Scale for leg pain and back pain. Hopkins symptom check list (HSCL-25) HSCL-25 is a PROM for assessment of psychological variables. It covers emotional distress, scores range from 1 to 4, with lower scores indicating less severe symptoms. Radiological data: Standing x-rays; anterior-posterior (AP), lateral and functional images (lateral- extension and flexion) and MRI. Radiological evaluations Standing x-ray with functional images and MRI will be performed at baseline-, 5-, and 10 years follow-up. Additionally, patients with lumbar spinal stenosis and concomitant degenerative spondylolisthesis at baseline undergo functional radiographs at 2 years follow-up. One musculoskeletal radiologist and two surgeons (Orthopedic surgeon and Neurosurgeon) will perform the radiological interpretations using Picture Archiving and Communication System (PACS), Sectra, Sweden. MRI of the lumbar spine, including T1 and T2 sequences in the axial and sagittal planes. The following variables will be measured: Measurements quantifying the degree of stenosis: Morphologic grading according to the method described by Schizas et al. The grading is based on the cerebrospinal fluid/rootlet ratio, and is scaled from A-D, where A is no stenosis, B moderate stenosis, C severe stenosis and D extreme stenosis. Measurements from sagittal plane T1 MRI sequences for grading of foraminal stenosis using the method of Lee et al. The presence or absence of redundant nerve root sign. Measurements when degenerative spondylolisthesis is present: Measurement of the facet joint orientation will be done by MRI images in the transverse plan using the method of Berleman et al. Degree of disc degeneration according to Pfirrmann et al and Modic et al. Qualitative measurement of facet joint fluid. Qualitative measurement of disc height. Skeletal x-rays:Standard images; frontal and lateral view of L1 to S1 in standing position.Extension- and flexion images; lateral view of L1 to S1 with respectively maximal flexion and maximal extension. Measurement of lumbar lordosis (L1-S1),sacral slope Measurements from the radiographs for calculating vertebral sagittal olisthesis and segmental instability will use the method of Dupuis et al. |
||||||
Study Type | Observational | ||||||
Study Design | Observational Model: Cohort Time Perspective: Prospective |
||||||
Target Follow-Up Duration | Not Provided | ||||||
Biospecimen | Not Provided | ||||||
Sampling Method | Non-Probability Sample | ||||||
Study Population | All patients with symptomatic LSS with and without LDS referred to the participating orthopedic- or neurosurgical departments will be eligible for inclusion in the observational cohort. The burden of symptoms is considered not to be severe enough to opt for surgical treatment, and this conclusion is made through informed shared decision-making between surgeon and patient. Patients will be given verbal and written information about this observational study. If willing to participate, the patients sign an informed consent. The treatment of these patients will be pragmatic "usual care". There will not be any planned specific conservative treatment, but the surgeon can recommend specific conservative treatments in any case if preferred | ||||||
Condition |
|
||||||
Intervention | Not Provided | ||||||
Study Groups/Cohorts | Not Provided | ||||||
Publications * | Not Provided | ||||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
|||||||
Recruitment Information | |||||||
Recruitment Status | Active, not recruiting | ||||||
Actual Enrollment |
284 | ||||||
Original Estimated Enrollment |
300 | ||||||
Estimated Study Completion Date | October 2029 | ||||||
Estimated Primary Completion Date | October 2028 (Final data collection date for primary outcome measure) | ||||||
Eligibility Criteria | Inclusion Criteria:
Exclusion Criteria:
|
||||||
Sex/Gender |
|
||||||
Ages | 18 Years to 80 Years (Adult, Older Adult) | ||||||
Accepts Healthy Volunteers | No | ||||||
Contacts | Contact information is only displayed when the study is recruiting subjects | ||||||
Listed Location Countries | Norway | ||||||
Removed Location Countries | |||||||
Administrative Information | |||||||
NCT Number | NCT03562936 | ||||||
Other Study ID Numbers | 2011/2034-2 | ||||||
Has Data Monitoring Committee | Yes | ||||||
U.S. FDA-regulated Product |
|
||||||
IPD Sharing Statement | Not Provided | ||||||
Current Responsible Party | Haukeland University Hospital | ||||||
Original Responsible Party | Same as current | ||||||
Current Study Sponsor | Haukeland University Hospital | ||||||
Original Study Sponsor | Same as current | ||||||
Collaborators | Møre og Romsdal Hospital Trust | ||||||
Investigators |
|
||||||
PRS Account | Haukeland University Hospital | ||||||
Verification Date | August 2021 |