NCT04940403

Brief Summary

The focus of this study is to perform a preliminary assessment of the efficacy of the BurtVision system. While the Burt robotic-arm assists the patient's upper-limb in their movements, BurtVision will allow the patient to perform unimanual and bimanual activities while leveraging augmented reality games. The investigators will compare clinical outcomes when the BurtVisions ystem is used for training solely relying on unimanual tasks vs. when it is used for training relying on both unimanual and bimanual tasks.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
38

participants targeted

Target at P25-P50 for not_applicable stroke

Timeline
9mo left

Started Sep 2026

Shorter than P25 for not_applicable stroke

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 17, 2021

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 25, 2021

Completed
5.2 years until next milestone

Study Start

First participant enrolled

September 1, 2026

Expected
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 15, 2027

4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2027

Last Updated

April 2, 2026

Status Verified

March 1, 2026

Enrollment Period

6 months

First QC Date

June 17, 2021

Last Update Submit

March 29, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Motor Activity Log- Amount of Use

    Self-reported measures of upper extremity activity performance in daily life (amount of use)

    Data will be collected at baseline and at 7-8 weeks

Secondary Outcomes (5)

  • Fugl-Meyer Assessment, Upper-Extremity portion

    Data will be collected at baseline and at 7-8 weeks

  • Wolf Motor Function Test

    Data will be collected at baseline and at 7-8 weeks

  • Stroke Impact Scale

    Data will be collected at baseline and at 7-8 weeks

  • Motor Activity Log- Quality of Use

    Data will be collected at baseline and at 7-8 weeks

  • Upper-Extremity Accelerometry

    Data will be collected at baseline and at 7-8 weeks

Study Arms (2)

Unimanual robot-assisted upper-limb rehabilitation

ACTIVE COMPARATOR

Participants randomized to this arm of the study will undergo 18 one-hour sessions of robot-assisted upper-limb rehabilitation. During the sessions, study participants will only train their hemiparetic arm (unimanual tasks only).

Device: Burt

Bimanual robot-assisted upper-limb rehabilitation

EXPERIMENTAL

Participants randomized to this arm of the study will undergo 18 one-hour sessions of robot-assisted upper-limb rehabilitation. During the sessions, study participants will train their hemiparetic arm as well as interacting with the contralateral arm for bimanual tasks (unimanual + bimanual tasks).

Device: Burt + BurtVision

Interventions

BurtDEVICE

18 one-hour sessions of unimanual upper-limb tasks during robot-assisted training with the Burt.

Unimanual robot-assisted upper-limb rehabilitation

18 one-hour sessions of combination of unimanual and bimanual upper-limb tasks during robot-assisted training with the BurtVision.

Bimanual robot-assisted upper-limb rehabilitation

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female, 18-80 years old;
  • Unilateral ischemic or hemorrhagic stroke at least 6 months and no more than 5 years prior to study enrollment;
  • Upper extremity hemiparesis as characterized by initial scores on upper limb subtest of the Fugl-Meyer Assessment (FMA-UE) between 12 and 40;
  • Some active pro-supination range of motion;
  • Some active metacarpal-phalangeal joint in the hemiparetic hand;
  • Intact cognitive function to understand the robotic therapy procedures (MMSE\>23 and able to follow 3 step command) during initial evaluation visit;

You may not qualify if:

  • Undergoing upper-limb rehabilitation therapy during the period of the study.
  • Severe spasticity (defined as a Modified Ashworth scale score of 3 or more) that would prevent safe use of the robotic system;
  • Visual impairments as assessed by the NIH Stroke Scale Visual Field subscale (only subjects with no visual loss will participate in the study); or hemispatial neglect that would impair the subject's ability to play the interactive games (as assessed with the line bisection test);
  • Severe proprioceptive deficits that impair the ability to process haptic or visual feedback, as assessed by physical examination during screening;
  • Communication impairments such aphasia that impair the subject's ability of providing feedback (as reported by a physician in his/her medical record);
  • Individuals with open wounds or recent fracture (\<3 months) in the upper extremity, fragile skin or active infection;
  • Upper-extremity orthopedic injuries or severe pain resulting in movement limitations.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Stroke

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Study Officials

  • Paolo Bonato, PhD

    Harvard Medical School, Spaulding Rehabilitation Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Catherine Adans-Dester, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Outcome assessor will be blinded to the treatment allocation.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Study participants will be randomized to either 1) manual robot-assisted upper-limb rehabilitation, and 2) unimanual+bimanual robot-assisted upper-limb rehabilitation
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor, HMS and Director, Motion Analysis Laboratory

Study Record Dates

First Submitted

June 17, 2021

First Posted

June 25, 2021

Study Start (Estimated)

September 1, 2026

Primary Completion (Estimated)

February 15, 2027

Study Completion (Estimated)

June 1, 2027

Last Updated

April 2, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share