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NCT02892760

Clinical Algorithm for Post-Stroke Gait Training With C-Brace

Completed NA Results posted Last updated 8 November 2021
What this trial tests

NA trial testing C-Brace in Hemiparesis Due to Stroke in 17 participants. Completed in 8 January 2019.

Timeline
13 February 2017
Primary endpoint
8 January 2019
8 January 2019

Quick facts

Lead sponsorThe University of Texas Health Science Center, Houston
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationna
Designsingle group
Maskingnone
Primary purposetreatment
Enrollment17
Start date13 February 2017
Primary completion8 January 2019
Estimated completion8 January 2019
Sites1 location across United States

Drugs / interventions tested

Conditions studied

Sponsor

The University of Texas Health Science Center, Houston

Who can join

Adults 18 to 65, any sex, with Hemiparesis Due to Stroke or Hemiplegia Due to Stroke. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Gait Quality as Indicated by Joint Excursion as Assessed by Kinematic Analysis Primary · week 5

During the 10 Meter Walk Test (10MWT), infrared light emitting diode markers will be attached to bilateral lower extremities. The marker data will be recorded using the Northern Digital Inc (NDI) Optotrak Certus motion capture system. Marker data will be processed using custom Matlab program to determine lower extremity joint excursion. Joint excursion is the range of motion of a particular joint, and the range of motion is reported in degrees. After stroke, one side of the body is affected, and joint excursion for various joint angles (of hip, knee, and ankle) are reported for both sides of t

Affected Hip flexion-extension
GroupValue95% CI
With C-brace33.98± 10.03
Affected Hip abduction-adduction
GroupValue95% CI
With C-brace9.34± 3.04
Affected Hip internal-external rotation
GroupValue95% CI
With C-brace21.25± 14.45
Affected Knee flexion-extension
GroupValue95% CI
With C-brace34.51± 16.55
Affected Knee abduction-adduction
GroupValue95% CI
With C-brace7.72± 1.77
Affected Knee internal-external rotation
GroupValue95% CI
With C-brace16.26± 9.53
Affected Ankle flexion-extension
GroupValue95% CI
With C-brace13.51± 7.73
Affected Ankle abduction-adduction
GroupValue95% CI
With C-brace6.06± 4.33
Gait Quality as Indicated by Joint Excursion as Assessed by Kinematic Analysis Primary · week 9

During the 10 Meter Walk Test (10MWT), infrared light emitting diode markers will be attached to bilateral lower extremities. The marker data will be recorded using the NDI Optotrak Certus motion capture system. Marker data will be processed using custom Matlab program to determine lower extremity joint excursion. Joint excursion is the range of motion of a particular joint, and the range of motion is reported in degrees. After stroke, one side of the body is affected, and joint excursion for various joint angles (of hip, knee, and ankle) are reported for both sides of the body (affected side

Affected Hip flexion-extension
GroupValue95% CI
With C-brace38.80± 11.26
Affected Hip abduction-adduction
GroupValue95% CI
With C-brace9.03± 3.55
Affected Hip internal-external rotation
GroupValue95% CI
With C-brace22.75± 15.71
Affected Knee flexion-extension
GroupValue95% CI
With C-brace34.93± 17.02
Affected Knee abduction-adduction
GroupValue95% CI
With C-brace7.92± 2.93
Affected Knee internal-external rotation
GroupValue95% CI
With C-brace16.18± 7.71
Affected Ankle flexion-extension
GroupValue95% CI
With C-brace15.91± 6.82
Affected Ankle abduction-adduction
GroupValue95% CI
With C-brace6.82± 5.51
Change in Muscle Function as Indicated by EMG Amplitude Assessed by Surface Electromyography (sEMG) Primary · week 5

Bipolar surface electrodes will be placed on the bilateral major leg muscles to record electromyography (1000Hz, Motion Labs 16-Channel EMG System). The EMG amplitude (in volts) will be calculated over the whole gait cycle during the 10 Meter Walk Test (10MWT), in which the participant walks 10 meters. After stroke, one side of the body is affected, and data for various muscles are reported for both sides of the body (affected side of body and unaffected side of body).

Affected Tibialis anterior
GroupValue95% CI
With C-brace0.2627± 0.0914
Affected Soleus
GroupValue95% CI
With C-brace0.2484± 0.0641
Affected Medial gastrocnemius
GroupValue95% CI
With C-brace0.2183± 0.1011
Affected Vastus medialis
GroupValue95% CI
With C-brace0.2211± 0.0837
Affected Rectus femoris
GroupValue95% CI
With C-brace0.2513± 0.0607
Affected Biceps femoris
GroupValue95% CI
With C-brace0.3136± 0.0723
Affected Semimembranous
GroupValue95% CI
With C-brace0.2184± 0.0734
Unaffected Tibialis anterior
GroupValue95% CI
With C-brace0.2791± 0.0595
Change in Muscle Function as Indicated by EMG Amplitude Assessed by Surface Electromyography (sEMG) Primary · week 9

Bipolar surface electrodes will be placed on the bilateral major leg muscles to record electromyography (1000Hz, Motion Labs 16-Channel EMG System). The EMG amplitude (in volts) will be calculated over the whole gait cycle during the 10 Meter Walk Test (10MWT), in which the participant walks 10 meters. After stroke, one side of the body is affected, and data for various muscles are reported for both sides of the body (affected side of body and unaffected side of body).

Affected Tibialis anterior
GroupValue95% CI
With C-brace0.2639± 0.0897
Affected Soleus
GroupValue95% CI
With C-brace0.2776± 0.0755
Affected Medial gastrocnemius
GroupValue95% CI
With C-brace0.3312± 0.0950
Affected Vastus medialis
GroupValue95% CI
With C-brace0.2149± 0.1062
Affected Rectus femoris
GroupValue95% CI
With C-brace0.2146± 0.1072
Affected Biceps femoris
GroupValue95% CI
With C-brace0.2795± 0.0905
Affected Semimembranous
GroupValue95% CI
With C-brace0.2781± 0.1045
Unaffected Tibialis anterior
GroupValue95% CI
With C-brace0.3152± 0.0689
Metabolic Expenditure During Walking Primary · week 5

Change in metabolic expenditure during walking will be indicated by energy expenditure. Energy Expenditure will be measured by the K4 b2 Cosmed as follows: Oxygen cost will be calculated from oxygen consumption as the product of gait speed and body weight. Oxygen consumption will be collected on a breath-by-breath basis measured by a portable metabolic system (K4 b2 Cosmed). Prior to the testing, the system will be calibrated using room air and reference gas mixture. During the testing, the subject will wear a face mask and a heart rate monitor at all times and will be asked to breathe normall

GroupValue95% CI
With C-brace0.03± 0.02
Metabolic Expenditure During Walking Primary · week 9

Change in metabolic expenditure during walking will be indicated by energy expenditure. Energy Expenditure will be measured by the K4 b2 Cosmed as follows: Oxygen cost will be calculated from oxygen consumption as the product of gait speed and body weight. Oxygen consumption will be collected on a breath-by-breath basis measured by a portable metabolic system (K4 b2 Cosmed). Prior to the testing, the system will be calibrated using room air and reference gas mixture. During the testing, the subject will wear a face mask and a heart rate monitor at all times and will be asked to breathe normall

GroupValue95% CI
With C-brace0.03± 0.01
Score on the Timed Up and Go Test Secondary · week 0

Assesses mobility, balance, walking ability, and fall risk in older adults. The test measures the time it takes the subject to perform a sit to stand from a chair with arms, walk to a mark on the ground 10 feet away and return to the seated position in the chair with arms. This test has been used in assessing stroke recovery with high reliability and validity.

GroupValue95% CI
With C-brace20.09± 12.38
Score on the Timed Up and Go Test Secondary · week 5

Assesses mobility, balance, walking ability, and fall risk in older adults. The test measures the time it takes the subject to perform a sit to stand from a chair with arms, walk to a mark on the ground 10 feet away and return to the seated position in the chair with arms. This test has been used in assessing stroke recovery with high reliability and validity.

GroupValue95% CI
With C-brace19.37± 9.13
Score on the Timed Up and Go Test Secondary · week 9

Assesses mobility, balance, walking ability, and fall risk in older adults. The test measures the time it takes the subject to perform a sit to stand from a chair with arms, walk to a mark on the ground 10 feet away and return to the seated position in the chair with arms. This test has been used in assessing stroke recovery with high reliability and validity.

GroupValue95% CI
With C-brace19.09± 9.75
Mental State as Assessed by the Folstein Mini Mental State Examination (MMSE) Secondary · week 0

Mini Mental State Examination provides information about orientation, attention, learning, calculation, delayed recall, and construction. Several studies report acceptable validity of MMSE as a screening instrument and its relationship to functional outcome in stroke population. Total score ranges from 0 to 30, with a higher score indicating a better outcome.

GroupValue95% CI
With C-brace28.50± 2.14
Mental State as Assessed by the Folstein Mini Mental State Examination (MMSE) Secondary · week 9

Mini Mental State Examination provides information about orientation, attention, learning, calculation, delayed recall, and construction. Several studies report acceptable validity of MMSE as a screening instrument and its relationship to functional outcome in stroke population. Total score ranges from 0 to 30, with a higher score indicating a better outcome.

GroupValue95% CI
With C-brace28.43± 2.65
Number of Participants With Bilateral Hip Range of Motion Within Normal Limits as Assessed by Goniometry Secondary · week 0

Range of motion will be measured on bilateral hip using goniometry (goniometry is the use of a device called a goniometer to measure range of motion of a joint in degrees). After stroke, one side of the body is affected. For each participant, the range of motion of their affected hip will be measured and also the range of motion of their other hip (the unaffected hip) will be measured \[it is possible that a participant will have a range of motion within normal limits on both hip sides (affected hip and unaffected hip)\].

Affected side hip flexion
GroupValue95% CI
With C-brace12
Affected side hip extension
GroupValue95% CI
With C-brace11
Affected side hip internal rotation
GroupValue95% CI
With C-brace13
Affected side hip external rotation
GroupValue95% CI
With C-brace13
Affected side hip abduction
GroupValue95% CI
With C-brace12
Affected side hip adduction
GroupValue95% CI
With C-brace14
Unaffected side hip flexion
GroupValue95% CI
With C-brace13
Unaffected side hip extension
GroupValue95% CI
With C-brace13

Adverse events — posted to ClinicalTrials.gov

Time frame: 23 months. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

With C-brace
Serious: 1/15 (7%)
Deaths: 0/15

Serious adverse events (1 terms)

ReactionSystemWith C-brace
SeizureNervous system disorders
Other adverse events (6 terms — click to expand)

ReactionSystemWith C-brace
Fall at home/officeGeneral disorders
Skin pinchSkin and subcutaneous tissue disorders
BlisterSkin and subcutaneous tissue disorders
Skin rednessSkin and subcutaneous tissue disorders
High blood pressureGeneral disorders
Device non-functionInvestigations

Most-reported serious reactions: Seizure.

Data from ClinicalTrials.gov NCT02892760 adverse events section.

Sponsor's own description

The purpose of this study is to develop a clinical algorithmic-based evaluation and treatment approach for C-Brace for use by persons with hemiparesis or hemiplegia due to stroke.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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