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CompletedNCT07145476BILATUpdated Aug 28, 2025

Bilateral Robotic Rehabilitation in Chronic Stroke

An interventional study of Robotic arm exoskeleton integrated with cognitively engaging serious games in Stroke, sponsored by Carmelo Chisari. Completed at 1 site in Italy. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-08-28.

Sponsored by Carmelo Chisari · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 4 years 11 months after the study started (first participant enrolled Sep 2020, registered Aug 2025).
Phase
Not applicable
Study type
Interventional
Enrollment
24
Allocation
Non-randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

This study investigated the effectiveness and neurophysiological correlates of Bilateral Robot-Assisted Training (BRAT) in right-handed individuals with chronic unilateral stroke, focusing on how lesion side (dominant vs. non-dominant hemisphere) influences recovery. Twenty-four participants (>6 months post-stroke) completed a three-week BRAT program using the ALEx-RS robotic exoskeleton integrated with cognitively engaging serious games involving symmetric and asymmetric upper limb tasks.

Clinical outcomes (Fugl-Meyer Assessment, Bimanual Activity Test, Motricity Index) and kinematic measures (movement smoothness, movement duration) were assessed at baseline, post-treatment, and at two-month follow-up. Significant improvements (p \< 0.05) in all outcomes were observed after training and maintained at follow-up.

Patients with left hemiparesis (non-dominant side affected) showed greater gains in movement smoothness and bimanual task quality, suggesting recovery of more physiological motor patterns. Conversely, those with right hemiparesis (dominant side affected) improved mainly in movement speed, indicating compensatory strategy use. Greater baseline impairment predicted larger kinematic gains, particularly in the left hemiparesis group.

These findings support BRAT as an effective intervention for chronic stroke and underscore the importance of lesion side in shaping recovery profiles, with implications for personalized rehabilitation planning.

02

Conditions studied

  • Stroke

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Keywords

  • Robotic
  • Neuroplasticity
  • Personalized Rehabilitation
03

In context

Stroke

7,286 studies on the registry are indexed under Stroke; 2,007 are open to participants now.

This study's enrollment of 24 is below the median of 50 across 5,369 interventional studies indexed under Stroke.

Browse Stroke studies →

Lead sponsor

Carmelo Chisari is the lead sponsor of 2 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • first-ever unilateral stroke event;
  • upper limb paresis with the ability to perform at least antigravity movements of the upper limb;
  • right- hand dominance.

Exclusion criteria

Exclusion Criteria:

  • impossibility to provide informed consent;
  • cognitive impairment limiting the ability to understand the therapist's directions (screening Mini-Mental State Examination score \<24/30);
  • hemispatial neglect, severe memory/attention impairment or severe aphasia;
  • degree of spasticity of the upper limb such as to make the use of robotic devices impossible (Modified Ashworth Scale score > 3).
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    RHS

    Right Hemisphere affected

    Device: Robotic arm exoskeleton integrated with cognitively engaging serious games

  • Experimental
    LHS

    Left Hemisphere affected

    Device: Robotic arm exoskeleton integrated with cognitively engaging serious games

Interventions

  • DeviceRobotic arm exoskeleton integrated with cognitively engaging serious games

    A specific sequence of exercises including passive and active- assisted movements, unilateral and bilateral reaching tasks with visual feedback and bimanual symmetric and asymmetric coordination tasks.

06

What researchers measure

Primary outcomes

  1. Changes in Fugl-Meyer for the Upper Limb (UEFM) scale pre vs post training

    The Fugl-Meyer for the Upper Limb ranges from 0 to 66, with higher scores indicating better performance

    Time frame: From the pre-training evaluation (T0) to the post-training evaluation (T1), about 3 weeks after T0, to the follow up T2, about 2 months after T1

  2. Changes in Motricity Index (MI) scale pre vs post training

    The Motricity Index ranges from 0 to 100, with higher scores indicating better performance

    Time frame: From the pre-training evaluation (T0) to the post-training evaluation (T1), about 3 weeks after T0, to the follow up T2, about 2 months after T1

  3. Changes in Bimanual Activity Test (BAT) scale pre vs post training

    The Bimanual Activity Test ranges from 0 to 100, with higher scores indicating better performance

    Time frame: From the pre-training evaluation (T0) to the post-training evaluation (T1), about 3 weeks after T0, to the follow up T2, about 2 months after T1

Secondary outcomes

  1. Changes in movement smoothness pre vs post training

    The smoothness of patients' movements during reaching tasks with the exoskeleton will be measured using the modified Spectral ARC length (SPARC), with higher scores indicating better performance

    Time frame: From the pre-training evaluation (T0) to the post-training evaluation (T1), about 3 weeks after T0

  2. Changes in movement duration pre vs post training

    The duration of patients' movements during reaching tasks with the exoskeleton will be measured in seconds, with shorter durations indicating better performance

    Time frame: From the pre-training evaluation (T0) to the post-training evaluation (T1), about 3 weeks after T0

07

Study locations

1 site
  • AOUP
    Pisa, Pisa 56124, Italy
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 28, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07145476
Lead sponsor
Carmelo Chisari
Responsible party
Carmelo Chisari (Prof., Azienda Ospedaliero, Universitaria Pisana) — Sponsor-investigator
First posted
Aug 28, 2025
Start date
Sep 10, 2020
Primary completion
Sep 10, 2022
Completion
Sep 10, 2022
Last update
Aug 28, 2025

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Aug 2025. You cannot join it, but the record below documents what was studied.

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