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Robotic Assisted Upper-Limb Neurorehabilitation in Stroke Patients

CSP #558 - Robotic Assisted Upper-Limb Neurorehabilitation in Stroke Patients

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00372411
Acronym
VA ROBOTICS
Enrollment
127
Registered
2006-09-07
Start date
2005-12-31
Completion date
2009-08-31
Last updated
2014-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Stroke

Keywords

Stroke, Rehabilitation, Single-blind, Clinical Trial, Randomized controlled trial, Upper extremity, Robotics

Brief summary

This study will compare robotic training with usual care and intensive comparison therapy to attempt to improve upper extremity function.

Detailed description

Primary Hypothesis: The primary hypothesis is that robotic training compared with usual care and intensive comparison therapy will lead to improved upper extremity function. Eligible patients will be randomized to one of three treatment arms: 1) usual care, 2) intensive comparison therapy, or 3) robotic training. Participants assigned to intensive comparison therapy or robot-assisted training will receive treatment for 12 weeks consisting of three one-hour sessions a week and then usual care for the remainder of follow-up. Those assigned to usual care will receive the usual stroke care as delivered at each participating medical center for 36 weeks and then will be offered, as compassionate care, their choice of either robot-assisted or intensive comparison therapy. Secondary Hypothesis: The secondary hypotheses are that compared with usual care and intensive comparison therapy, robotic treatment will lead to improved quality of life and task performance involving proximal and distal control of the paretic arm. If the robotic arm is effective, two other secondary objects are to evaluate its early (less than 12 week) and late (36 week) effects on the primary and secondary outcomes. Primary Outcome: The primary study outcome is the change in the Fugl-Meyer score of neurological impairment at 12 weeks relative to baseline. Secondary Outcome: Secondary outcomes include the Stroke Impact Scale and Wolf Motor Function Test. A cost-effectiveness analysis is planned but only will be conducted if robotic training is more effective than usual care. Study Abstract: CSP #558 will be a randomized, multi-center, outpatient phase II trial to assess the safety and efficacy of robot-assisted therapy for neurorehabilitation in stroke patients with moderate to severe upper extremity impairment. The target sample is 158 patients: 26 usual care, 66 intensive comparison therapy and 66 robot training. This sample size will provide 90% power to detect a 5-point mean difference in the Fugl-Meyer scale between robot training and usual care and 3-point mean difference between robot training and intensive comparison therapy. There will be one interim analysis of the primary endpoint at 12 months for the purpose of sample size re-estimation using an adaptive design. The planned study duration is 33 months with 24 months of intake and nine months of follow-up. IMPACT STATEMENT If robotic training proves to be beneficial it will not only provide a functionally-oriented and neurophysiologically appropriate therapy, but also will make more widely available high-quality, evidence-based rehabilitative care at a time when there is a shortage of experienced therapists and a progressively growing rehabilitative need for veterans and all Americans.

Interventions

DEVICERobot-Assisted Therapy - MIT-MANUS System

The MIT-MANUS robot consists of four modules to train the entire upper limb: module A: shoulder-elbow; module B: anti-gravity; module C: wrist, and module D: hand-unit. Training will be given for 12 weeks and is divided into 4 consecutive blocks, with 9 training sessions per block.

OTHERIntensive Comparison Therapy

The intensive comparison therapy protocol being used in CSP#558 was developed and field-tested at the Burke Rehabilitation Hospital. It exposes the patient to the identical number of treatments, time, and intensity that robot treated patients will receive (12 weeks, 3 times per week). Therapy sessions can be conducted on back-to-back days if needed and on more than 3 days a week (with approval from the Study Chairman) over a treatment period of up to 14 weeks in order to complete the 36 treatment sessions. During each 1-hour session, subjects participate in therapy in four successive stages: 1) warm-up and assisted stretching; 2) active arm treatments; 3) goal-directed planar reaching, and 4) functionally based Neurodevelopment Techniques (NDT)/Bobath arm training (Bobath, 1979).

OTHERUsual Care

The usual chronic stroke care as delivered at each participating medical center

Sponsors

Burke Medical Research Institute
CollaboratorOTHER
US Department of Veterans Affairs
Lead SponsorFED

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* A single new focal unilateral stroke with diagnosis verified by brain imaging (MRI) or CT scan that has occurred at least 6 months prior to enrollment. * Age 18 years of age and older. * Upper extremity Fugl-Meyer score \>=7 or \<=38 (max 66). (These thresholds include neither hemiplegic nor fully recovered motor function in 14 muscles of the shoulder, elbow, and wrist.) * Cognitive function sufficient to understand the experiments and follow instructions (Mini-Mental Status Score of 22 and higher or interview for aphasic subjects). * Willingness to avoid any new alternative arm rehabilitative approaches for the duration of the study. * Written informed consent to participate in the study.

Exclusion criteria

* A fixed contracture in the affected limb that prevents movement along the entire dynamic range required by either robot-assisted or intensive comparison therapy. * Joint pain that occurs within the range of motion required by the intervention protocols (intensive comparison therapy and robot-assisted therapy). * Enrolled in or planning to enroll in another interventional research trial that involves the upper limbs using procedures proposed to enhance or limit the function of the upper extremity (such as adjuvant rehabilitation or Botox injections) during the 36 weeks of participation. * Prior experience with robot-assisted therapy or intensive comparison therapy for the upper limb as described in this specific study. * A complicating medical condition that would prevent completion of the trial. * Unable to complete the nine-month study, e.g., extended planned vacation. * Any other known pre-existing bone diseases that might increase the risk of bone fracture or other injury from intensive comparison therapy or robot-assisted therapy.

Design outcomes

Primary

MeasureTime frameDescription
Fugl-Meyer Assessment for Motor Recovery (FM) Scale6, 12, 24 and 36 weeks minus baselineFugl-Meyer (FM) is a standard instrument for the quantitative clinical assessment of motor impairment and function. In this study the upper extremity subsection of the FM was used. The FM assesses several impairment dimensions by using a 3 point ordinal scale: 0 = cannot perform, 1 = can perform partially and 2 = can perform fully. These measures are summed to an overall score is Scoring for upper extremity FM ranges from 0 (worst, completely plegic) to 66 (best, normal). Higher scores indicate better functioning. Outcome measure is the change in the FM score at 6, 12, 24 and 36 weeks relative to baseline.

Secondary

MeasureTime frameDescription
Stroke Impact Scale6, 12, 24 and 36 weeks minus baselineThe Stroke Impact Scale (SIS) is stroke specific, self-reported measure that evaluates function and quality of life in eight clinically relevant domains. The domains of hand function, activities of daily living, instrumental activities of daily living, mobility, and social participation were used; total score ranges from 0 to 100 with higher values indicating better functioning. Outcome is change at 6, 12, 24 and 36 weeks relative to baseline.
Wolf Motor Function Test6, 12, 24 and 36 weeks minus baselineThe Wolf Motor Function Test (WMFT) is a functionally-based test designed to provide an objective measure of both proximal (during tasks such as lifting the hand from table to box top) and distal control (grasping pencil, bringing soda can to mouth) of the paretic arm for patients after stroke or traumatic brain injury. The WMFT consists of 17 items, of which 15 measure time to perform functional tasks. The tasks are averaged to produce a score in seconds that ranges from 0 to 120 seconds, with higher scores indicating worse functioning. Outcome measure is the change in the Wolf score at 6, 12, 24 and 36 weeks relative to baseline.
Change in the Numeric Rating Scale (NRS) at 12 Weeks Relative to Baseline12 weeks minus baselineThe Numeric Rating Scale (NRS) for pain is a self report scale ranging from 0 (no Pain) to 10 (pain as bad as you can imagine).
Change in the Modified Ashworth Scale for Spasticity at 12 Weeks Relative to Baseline12 weeks minus baselineThe Modified Ashworth Scale for spasticity is a measurement of spasticity across 9 muscle groups. Each muscle group is scored on a 0 to 5 scale with higher scores indicating worse functioning. The total score is the average score from the 9 muscle groups and ranges from 0 to 5 with higher scores indicating worse functioning.

Countries

United States

Participant flow

Recruitment details

Between 11-8-06 and 10-31-08, 200 were screened and 127 randomized from 4 VA medical centers: Gainesville, West Haven, Baltimore, and Seattle. Usual care enrollment was stopped after 15 months when target information was attained per protocol. Recruitment to the robot-assisted and intensive comparison groups continued for 24 months.

Participants by arm

ArmCount
Robot-assisted Therapy
Robot-Assisted Therapy uses the MIT-MANUS robot and consists of four modules, shoulder-elbow, anti-gravity, wrist, and hand-unit to train the entire upper limb. Training was given for 12 weeks and was divided into 4 consecutive blocks, with 9 training sessions per block.
49
Intensive Comparison Therapy
Intensive comparison therapy consisted of the identical number of treatments, time, and intensity of Robot-assisted therapy (12 weeks, 3 times per week). Each 1-hour therapy session consisted of four successive stages: 1) warm-up and assisted stretching; 2) active arm treatments; 3) goal-directed planar reaching, and 4) functionally based Neurodevelopment Techniques/Bobath arm training.
50
Usual Care
Usual Care consisted of the usual chronic stroke care as delivered at each participating medical center.
28
Total127

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event110
Overall StudyDeath021
Overall StudyLost to Follow-up111
Overall StudyWithdrawal by Subject341

Baseline characteristics

CharacteristicRobot-assisted TherapyIntensive Comparison TherapyUsual CareTotal
Age, Continuous66 years
STANDARD_DEVIATION 11
64 years
STANDARD_DEVIATION 11
63 years
STANDARD_DEVIATION 12
65 years
STANDARD_DEVIATION 11
Comorbidity Disease Index
≤1 Domain
7 participants7 participants2 participants16 participants
Comorbidity Disease Index
2 Domains
13 participants24 participants8 participants45 participants
Comorbidity Disease Index
≥3 Domains
29 participants19 participants18 participants66 participants
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants2 Participants0 Participants3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
48 Participants48 Participants28 Participants124 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Fugl-Meyer Assessment19.7 units on a scale
STANDARD_DEVIATION 10.7
17.3 units on a scale
STANDARD_DEVIATION 8.4
20.3 units on a scale
STANDARD_DEVIATION 9
18.9 units on a scale
STANDARD_DEVIATION 9.5
Index Stroke Location
Anterior circulation <1/3 of hemisphere
17 Participants21 Participants10 Participants48 Participants
Index Stroke Location
Anterior circulation ≥1/3 of hemisphere
6 Participants14 Participants6 Participants26 Participants
Index Stroke Location
Posterior circulation
9 Participants0 Participants6 Participants15 Participants
Index Stroke Location
Small deep infarct
17 Participants15 Participants6 Participants38 Participants
Index Stroke Type
Hemorrhagic
7 participants6 participants6 participants19 participants
Index Stroke Type
Ischemic
42 participants44 participants22 participants108 participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants1 Participants0 Participants1 Participants
Race (NIH/OMB)
Black or African American
10 Participants12 Participants5 Participants27 Participants
Race (NIH/OMB)
More than one race
1 Participants2 Participants0 Participants3 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
38 Participants35 Participants23 Participants96 Participants
Region of Enrollment
United States
49 participants50 participants28 participants127 participants
Sex: Female, Male
Female
2 Participants2 Participants1 Participants5 Participants
Sex: Female, Male
Male
47 Participants48 Participants27 Participants122 Participants
Time from Index Stroke to Randomization3.6 Years
STANDARD_DEVIATION 4
4.8 Years
STANDARD_DEVIATION 4
6.2 Years
STANDARD_DEVIATION 5
4.7 Years
STANDARD_DEVIATION 4.2

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
12 / 499 / 500 / 28
serious
Total, serious adverse events
11 / 4918 / 509 / 28

Outcome results

Primary

Fugl-Meyer Assessment for Motor Recovery (FM) Scale

Fugl-Meyer (FM) is a standard instrument for the quantitative clinical assessment of motor impairment and function. In this study the upper extremity subsection of the FM was used. The FM assesses several impairment dimensions by using a 3 point ordinal scale: 0 = cannot perform, 1 = can perform partially and 2 = can perform fully. These measures are summed to an overall score is Scoring for upper extremity FM ranges from 0 (worst, completely plegic) to 66 (best, normal). Higher scores indicate better functioning. Outcome measure is the change in the FM score at 6, 12, 24 and 36 weeks relative to baseline.

Time frame: 6, 12, 24 and 36 weeks minus baseline

Population: All participants with baseline and follow-up measures were included by intention-to-treat

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Robot-assisted TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale6 weeks minus baseline3.01 units on a scaleStandard Error 0.92
Robot-assisted TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale12 weeks minus baseline3.87 units on a scaleStandard Error 1.05
Robot-assisted TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale24 weeks minus baseline4.22 units on a scaleStandard Error 1.05
Robot-assisted TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale36 weeks minus baseline5.07 units on a scaleStandard Error 1.18
Intensive Comparison TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale36 weeks minus baseline2.81 units on a scaleStandard Error 1.18
Intensive Comparison TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale6 weeks minus baseline3.19 units on a scaleStandard Error 0.91
Intensive Comparison TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale24 weeks minus baseline2.75 units on a scaleStandard Error 1.06
Intensive Comparison TherapyFugl-Meyer Assessment for Motor Recovery (FM) Scale12 weeks minus baseline4.01 units on a scaleStandard Error 1.06
Usual CareFugl-Meyer Assessment for Motor Recovery (FM) Scale36 weeks minus baseline-0.53 units on a scaleStandard Error 1.19
Usual CareFugl-Meyer Assessment for Motor Recovery (FM) Scale12 weeks minus baseline-1.06 units on a scaleStandard Error 1
Usual CareFugl-Meyer Assessment for Motor Recovery (FM) Scale24 weeks minus baseline-2.02 units on a scaleStandard Error 1.14
Usual CareFugl-Meyer Assessment for Motor Recovery (FM) Scale6 weeks minus baseline-2.08 units on a scaleStandard Error 1.08
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol, comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.0895% CI: [-0.23, 4.58]ANCOVA
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.0295% CI: [0.57, 5.18]Mixed Models Analysis
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.9295% CI: [-2.94, 2.65]ANCOVA
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.6395% CI: [-2.97, 1.81]Mixed Models Analysis
Secondary

Change in the Modified Ashworth Scale for Spasticity at 12 Weeks Relative to Baseline

The Modified Ashworth Scale for spasticity is a measurement of spasticity across 9 muscle groups. Each muscle group is scored on a 0 to 5 scale with higher scores indicating worse functioning. The total score is the average score from the 9 muscle groups and ranges from 0 to 5 with higher scores indicating worse functioning.

Time frame: 12 weeks minus baseline

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Robot-assisted TherapyChange in the Modified Ashworth Scale for Spasticity at 12 Weeks Relative to Baseline-0.07 units on a scaleStandard Error 0.09
Intensive Comparison TherapyChange in the Modified Ashworth Scale for Spasticity at 12 Weeks Relative to Baseline0.12 units on a scaleStandard Error 0.09
Usual CareChange in the Modified Ashworth Scale for Spasticity at 12 Weeks Relative to Baseline-0.04 units on a scaleStandard Error 0.11
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.9595% CI: [-0.25, 0.26]ANCOVA
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.195% CI: [-0.42, 0.04]ANCOVA
Secondary

Change in the Numeric Rating Scale (NRS) at 12 Weeks Relative to Baseline

The Numeric Rating Scale (NRS) for pain is a self report scale ranging from 0 (no Pain) to 10 (pain as bad as you can imagine).

Time frame: 12 weeks minus baseline

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Robot-assisted TherapyChange in the Numeric Rating Scale (NRS) at 12 Weeks Relative to Baseline-0.61 units on a scaleStandard Error 0.29
Intensive Comparison TherapyChange in the Numeric Rating Scale (NRS) at 12 Weeks Relative to Baseline0.24 units on a scaleStandard Error 0.3
Usual CareChange in the Numeric Rating Scale (NRS) at 12 Weeks Relative to Baseline0 units on a scaleStandard Error 0.38
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.0895% CI: [-1.73, 0.11]ANCOVA
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.0395% CI: [-1.62, -0.06]ANCOVA
Secondary

Stroke Impact Scale

The Stroke Impact Scale (SIS) is stroke specific, self-reported measure that evaluates function and quality of life in eight clinically relevant domains. The domains of hand function, activities of daily living, instrumental activities of daily living, mobility, and social participation were used; total score ranges from 0 to 100 with higher values indicating better functioning. Outcome is change at 6, 12, 24 and 36 weeks relative to baseline.

Time frame: 6, 12, 24 and 36 weeks minus baseline

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Robot-assisted TherapyStroke Impact Scale6 weeks minus baseline5.49 units on a scaleStandard Error 1.61
Robot-assisted TherapyStroke Impact Scale12 weeks minus baseline6.31 units on a scaleStandard Error 1.68
Robot-assisted TherapyStroke Impact Scale24 weeks minus baseline5.58 units on a scaleStandard Error 1.68
Robot-assisted TherapyStroke Impact Scale36 weeks minus baseline5.14 units on a scaleStandard Error 1.89
Intensive Comparison TherapyStroke Impact Scale36 weeks minus baseline4.97 units on a scaleStandard Error 1.88
Intensive Comparison TherapyStroke Impact Scale6 weeks minus baseline4.08 units on a scaleStandard Error 1.57
Intensive Comparison TherapyStroke Impact Scale24 weeks minus baseline4.23 units on a scaleStandard Error 1.69
Intensive Comparison TherapyStroke Impact Scale12 weeks minus baseline5.77 units on a scaleStandard Error 1.67
Usual CareStroke Impact Scale36 weeks minus baseline0.76 units on a scaleStandard Error 2.49
Usual CareStroke Impact Scale12 weeks minus baseline-3.03 units on a scaleStandard Error 2.34
Usual CareStroke Impact Scale24 weeks minus baseline-0.26 units on a scaleStandard Error 2.37
Usual CareStroke Impact Scale6 weeks minus baseline-3.79 units on a scaleStandard Error 2.47
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol, comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.00995% CI: [2.03, 13.24]ANCOVA
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.0495% CI: [0.34, 11.56]Mixed Models Analysis
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.8195% CI: [-3.87, 4.94]ANCOVA
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.5595% CI: [-2.74, 5.12]Mixed Models Analysis
Secondary

Wolf Motor Function Test

The Wolf Motor Function Test (WMFT) is a functionally-based test designed to provide an objective measure of both proximal (during tasks such as lifting the hand from table to box top) and distal control (grasping pencil, bringing soda can to mouth) of the paretic arm for patients after stroke or traumatic brain injury. The WMFT consists of 17 items, of which 15 measure time to perform functional tasks. The tasks are averaged to produce a score in seconds that ranges from 0 to 120 seconds, with higher scores indicating worse functioning. Outcome measure is the change in the Wolf score at 6, 12, 24 and 36 weeks relative to baseline.

Time frame: 6, 12, 24 and 36 weeks minus baseline

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Robot-assisted TherapyWolf Motor Function Test6 weeks minus baseline-3.98 SecondsStandard Error 2.72
Robot-assisted TherapyWolf Motor Function Test12 week minus baseline-3.96 SecondsStandard Error 3
Robot-assisted TherapyWolf Motor Function Test24 weeks minus baseline-5.97 SecondsStandard Error 2.77
Robot-assisted TherapyWolf Motor Function Test36 weeks minus baseline-6.23 SecondsStandard Error 2.83
Intensive Comparison TherapyWolf Motor Function Test36 weeks minus baseline-2.66 SecondsStandard Error 2.79
Intensive Comparison TherapyWolf Motor Function Test6 weeks minus baseline-3.24 SecondsStandard Error 2.64
Intensive Comparison TherapyWolf Motor Function Test24 weeks minus baseline-3.08 SecondsStandard Error 2.74
Intensive Comparison TherapyWolf Motor Function Test12 week minus baseline-4.89 SecondsStandard Error 3
Usual CareWolf Motor Function Test36 weeks minus baseline7.30 SecondsStandard Error 2.44
Usual CareWolf Motor Function Test12 week minus baseline7.54 SecondsStandard Error 2.97
Usual CareWolf Motor Function Test24 weeks minus baseline8.59 SecondsStandard Error 3.1
Usual CareWolf Motor Function Test6 weeks minus baseline7.38 SecondsStandard Error 2.53
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.2295% CI: [-11.52, 2.7]ANCOVA
Comparison: Because randomization to usual care was stopped after 15 months as specified by the protocol comparisons of robot-assisted therapy with usual care included only patients who were recruited during this period.p-value: 0.00595% CI: [-13.61, -2.6]Mixed Models Analysis
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.8295% CI: [-7.03, 8.89]ANCOVA
Comparison: Comparisons between robot-assisted therapy and intensive comparison therapy included all patients who underwent randomization and were evaluated.p-value: 0.5595% CI: [-9.2, 4.93]Mixed Models Analysis

Source: ClinicalTrials.gov · Data processed: Mar 31, 2026