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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/ct2/show/NCT04640584
Registration number
NCT04640584
Ethics application status
Date submitted
17/11/2020
Date registered
23/11/2020
Date last updated
10/01/2024
Titles & IDs
Public title
C-Brace Prospective Registry
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Scientific title
A Prospective Registry of Patients Fitted With a Microprocessor-controlled Knee Ankle Foot Orthosis
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Secondary ID [1]
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PD-PS00120018A-001
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Pareses
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Lower Extremity
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Condition category
Condition code
Neurological
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Other neurological disorders
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Intervention/exposure
Study type
Observational [Patient Registry]
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Treatment: Devices - C-Brace
Treatment: Devices: C-Brace
The C-Brace consists of individually fabricated thigh, calf and foot components. An ankle joint, unilateral or bilateral fitting, or an individual spring element connects the foot and calf components. The sensor system continuously measures the flexion of the knee joint and its angular acceleration. This allows the C-Brace to detect the user's current walking phase, so it can regulate the hydraulic resistances as well as control the flexion and extension of the knee joint.
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Intervention code [1]
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Treatment: Devices
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Primary Efficacy: Timed Walk Test
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Assessment method [1]
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The Timed Walk test is used to measure gait speed on either a 25-foot or 10-meter straight course timed using the middle 10 feet or 6 meters, respectively. Three trials are performed and the average of the three used. Patients are allowed the use of assistive device (such as a cane, crutches or walker) that they normally use for in home or community ambulation.
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Timepoint [1]
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Change in walking speed with the C-Brace measured either by a 25-ft or 10-m walk test compared to baseline measurements when assessed 12 months after initial fitting
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Primary outcome [2]
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Primary Efficacy: Timed Up and Go (TUG) Test
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Assessment method [2]
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Originally designed to test mobility skills in the elderly, the TUG is a validated test for quantifying functional mobility and risk of falling. In the TUG Test, patients are asked to stand up from a chair, walk ten feet, turn and return to the chair, and then sit on the chair. For centers routinely using the TUG as a part of their standard of care, this data (time to complete in seconds) will be collected at baseline and follow-up visits when available. Predictive results from the test are as follows: <10s, Freely mobile; < 20s, Mostly independent; 20-29s, Variable mobility.
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Timepoint [2]
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Changes in mobility, balance, risk of falling, and walking ability as measured by TUG test with the C-Brace system compared to baseline when assessed 12 months after the initial fitting.
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Primary outcome [3]
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Primary Efficacy: Activities-specific Balance Confidence (ABC)
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Assessment method [3]
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Assessment of patient-perceived balance confidence for 16 activities of daily living. For each activity, subjects rate their level of confidence in doing the activity without losing their balance or becoming unsteady on a scale from 0% to 100%, with 100% being the highest level of confidence. The total score for the ABC scale is an average of all activity scores.
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Timepoint [3]
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Changes in perceived balance confidence as assessed by the ABC score with the C-Brace system compared to baseline when assessed 12 months after the initial fitting.
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Primary outcome [4]
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Primary Safety: Frequency and severity of falling
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Assessment method [4]
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The number and percentage of patients who experience one or more adverse events during their participation in the registry will be computed along with the exact 95% binomial confidence interval. The number and percentage of subjects who experience a serious adverse event will also be tabulated along with the exact 95% binomial confidence interval. Events will also be categorized and the number of events and number of patients for each category will be presented. In addition, a complete listing of adverse events along with their relationship to the device, severity, seriousness and outcome will be constructed.
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Timepoint [4]
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Changes in numbers of device-related adverse events experienced by C Brace users by frequency and severity compared to baseline measurement when assessed 12 months after the initial fitting
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Secondary outcome [1]
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Patient Specific Functional Scale (PSFS)
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Assessment method [1]
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The PSFS is a self-report measure aimed at identifying functional status limitations that are most relevant to individual patients.The PSFS is a reliable, valid, and efficient measure for detecting clinical change in persons with low back pain and knee dysfunction. Patients will be asked to identify three to five activities that they are having difficulty or are unable to perform because of their injury/condition. For the specified activities, patients will then be asked to rate their ability to perform each activity at that time (0-10 numerical scale) with '0' being unable to perform the activity, and '10' being able to perform the activity at the same level as they could prior to the injury/condition. There is no total score for this measure.
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Timepoint [1]
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Changes in patient-centered activities and in the defined activity performance with C-Brace by the PSFS compared to baseline when assessed 12 months after the initial fitting.
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Secondary outcome [2]
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Activity Tracker
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Assessment method [2]
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On the day the patient is casted for the C-Brace the patient's current orthosis will be affixed with an activity monitor to record the number of steps the patient takes with the orthosis. The patient will be sent home with a prepaid envelope and be instructed to mail back the activity monitor 16 days later, in order to capture 14 whole days of step count data. The step counts will be downloaded from the device the day the activity monitor is returned to the Investigator. The C-Brace will also be affixed with the same activity monitor following the same process for when the activity monitor was attached to the previous orthosis.
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Timepoint [2]
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Changes of C-Brace utilization at 12 months compared to baseline measurement estimated by the activity tracker
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Secondary outcome [3]
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Berg Balance Scale (BBS)
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Assessment method [3]
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The BBS is a 14-item scale designed to measure static and dynamic balance in adults in a clinical setting. The range in score for the BBS is 0 to 56, with higher scores indicating better balance. Points for each item are deducted if the time or distance requirements are not met, the patient's performance requires supervision, or the patient requires assistance from support or examiner. The points reached in each item were summed up to the total score.
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Timepoint [3]
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Changes in static and dynamic balance abilities as measured by the BBS compared to baseline when assessed 12 months after initial fitting with C-Brace.
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Eligibility
Key inclusion criteria
- Patient has been evaluated and successfully tested with the Trial Tool, and has been
casted for a C-Brace.
- Patient is able to communicate, provide feedback, understand and follow instructions
during the course of the registry.
- Patient is willing to provide informed consent.
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Minimum age
No limit
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
- Patient is geographically inaccessible to comply and participate in the registry.
- Patient has not been casted for a C-Brace fitting.
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Study design
Purpose
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Duration
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Selection
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Timing
Prospective
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Statistical methods / analysis
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Recruitment
Recruitment status
Recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
1/04/2015
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
1/04/2026
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Actual
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Sample size
Target
250
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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Neuromuscular-orthotics.com.au - Clayton
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Recruitment postcode(s) [1]
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3168 - Clayton
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Recruitment outside Australia
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United States of America
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California
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Florida
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Georgia
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Illinois
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Indiana
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Kentucky
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Maryland
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Massachusetts
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Michigan
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New York
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North Carolina
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Ohio
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Washington
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Germany
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Bavaria
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Germany
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Deutschland
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Germany
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Lower Saxony
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Germany
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Rhineland-Palatinate
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Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
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Name
Otto Bock Healthcare Products GmbH
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Address
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Ethics approval
Ethics application status
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Summary
Brief summary
To gather prospective safety and effectiveness data for the C-Brace System following the
standard of care.
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Trial website
https://clinicaltrials.gov/ct2/show/NCT04640584
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Frank Braatz, Prof.
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Address
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Private University of Applied Sciences
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Russell L Lundstrom, MS
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Address
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Phone
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512-806-2606
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Summary Results
For IPD and results data, please see
https://clinicaltrials.gov/ct2/show/NCT04640584
Download to PDF