NCT04697368

Brief Summary

Loss of arm function is a common and distressing consequence of stroke. Neurotechnology-aided rehabilitation could be a promising approach to accelerate the recovery of upper limb functional impairments. This multicentre randomized controlled trial is aimed at assessing the efficacy of robot-assisted upper limb rehabilitation in subjects with sub-acute stroke following a stroke, compared to the traditional upper limb rehabilitation.

Trial Health

55
Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
70

participants targeted

Target at P50-P75 for not_applicable stroke

Timeline
Completed

Started Dec 2020

Longer than P75 for not_applicable stroke

Geographic Reach
1 country

7 active sites

Status
active not recruiting

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 28, 2020

Completed
2 days until next milestone

First Submitted

Initial submission to the registry

December 30, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

January 6, 2021

Completed
4.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2025

Completed
10 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 24, 2025

Completed
Last Updated

December 18, 2025

Status Verified

December 1, 2025

Enrollment Period

4.2 years

First QC Date

December 30, 2020

Last Update Submit

December 10, 2025

Conditions

Keywords

StrokeSubacuteupper limbmotor functionrobot-assisted rehabilitationArmeo PowerexoskeletonFugle-Meyer Assessment

Outcome Measures

Primary Outcomes (1)

  • Change in Fugl-Meyer Assessment of Upper Extremities motor recovery after stroke -FMA

    The Fugl-Meyer Assessment (FMA) is a stroke-specific, performance-based impairment index. It is designed to assess motor functioning, balance, sensation, and joint functioning in patients with post-stroke hemiplegia. It is applied clinically and in research to determine disease severity, describe motor recovery, and to plan and assess treatment. In this study, we will consider the motor performance items of Upper extremity (0-66), only.

    Session 1 (Baseline-day1, T0), Session 25 (end of treatment-day 35, T1) and a follow-up (6 months since the acute event T2).

Secondary Outcomes (6)

  • Change in Modified Ashworth Scale (shoulder, elbow, and wrist).

    Session 1 (Baseline-day1, T0), Session 25 (end of treatment-day 35, T1) and a follow-up (6 months since the acute event T2).

  • Change in Box & Block Test

    Session 1 (Baseline-day1, T0), Session 25 (end of treatment-day 35, T1) and a follow-up (6 months since the acute event T2).

  • Change in Nine Hole Peg Test

    Session 1 (Baseline-day1, T0), Session 25 (end of treatment-day 35, T1) and a follow-up (6 months since the acute event T2).

  • Change in Frenchy Arm Test

    Session 1 (Baseline-day1, T0), Session 25 (end of treatment-day 35, T1) and a follow-up (6 months since the acute event T2).

  • Change in modified Barthel Index

    Session 1 (Baseline-day1, T0), Session 25 (end of treatment-day 35, T1) and a follow-up (6 months since the acute event T2).

  • +1 more secondary outcomes

Other Outcomes (4)

  • Instrumental assessment through the Armeo Power

    Session 1 (Baseline-day1, T0) and session 25 (end of treatment-day 35, T1)

  • Changes in muscles activity Surface electromyography (sEMG)

    Session 1 (Baseline-day1, T0) and session 25 (end of treatment-day 35, T1)

  • Kinematic changes

    Session 1 (Baseline-day1, T0) and session 25 (end of treatment-day 35, T1)

  • +1 more other outcomes

Study Arms (2)

Experimental Group (EG)

EXPERIMENTAL

The experimental group (EG), in addition to the standard treatment, will perform one session per day, each lasting 40 minutes, with the Armeo Power robotic system for upper limb rehabilitation. Each subject will perform a total of 25 ± 3 treatment sessions with a frequency of 5 times a week for 5 weeks.

Device: Exoskeleton-Assisted Upper Limb Rehabilitation

Control Group (CG)

ACTIVE COMPARATOR

The control group (CG), in addition to the standard routine rehabilitation treatment, will follow 40 minutes of conventional upper limb rehabilitation. Each subject will perform a total of 25 ± 3 conventional upper limb treatment sessions with a frequency of 5 times a week for 5 weeks.

Other: Traditional Upper Limb Rehabilitation

Interventions

The patients will be undergone 25+/-3 Armeo-P training sessions, each lasting 40 minutes (i.e. five times a week for five consecutive weeks). During the first session, the device should be adjusted to the patient's arm size and the angle of suspension. The working space and the exercises will be selected once the UL has been fitted with the system. The selection of personalized exercises will be based on the motor skills of each patient and the difficulty can be gradually increased during training. In particular, a course of exercises has been defined in which the difficulty (suspension rate; the level of assistance; the complexity of movement (1D, 2D, 3D)). The physiotherapist will choose the modality based on the patient's motor skills (standardized personalized training).

Also known as: Armro Power
Experimental Group (EG)

The control group (CG), in addition to the conventional treatment based on the routine rehabilitation program, will follow 25+/-3 sessions of traditional upper limb rehabilitation (i.e. five times a week for five consecutive weeks). Each session will consist of passive, active-assisted, and active exercises addressed for shoulder, arm and hand motor rehabilitation.

Control Group (CG)

Eligibility Criteria

Age18 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age between 18 and 85 years;
  • first stroke with neurological outcomes affecting the upper limb;
  • patients with severe or moderate hemiparesis (FM-UL≤44), stratified according to severe (FM-UL ≤ 22) or moderate (22 \<FM-UL ≤ 44) motor deficit;
  • patients in the sub-acute phase within 90 days of the acute event, stratified by the distance from the acute event (OAI≤30; OAI\> 30);
  • Modified Ashworth Scale (MAS) of the main components (shoulder, elbow, and wrist) of the upper limb \<3;
  • sufficient cognitive and linguistic level to understand the instructions and provide consent;
  • signed informed consent.

You may not qualify if:

  • unstable general clinical conditions;
  • severe visual impairment;
  • inability to maintain the sitting position;
  • mild motor deficit of the arm (FM-UL\> 44) at baseline;
  • recent botox injection in the upper limb or planned botox injection during the study period, including the follow-up;
  • inability to don the orthosis on the impaired upper limb;
  • bone instability in relevant areas of the upper extremity (unconsolidated fractures, fractures due to osteoporosis);
  • fixed contractures involving the impaired upper limb (e.g. frozen shoulder);
  • shoulder instability;
  • severe pain syndromes caused or intensified by rehabilitation with Armeo Power;
  • patients who need isolation for infectious diseases ;
  • epileptic disorder with frequent attacks that carry the risk of having a seizure during rehabilitation with Armeo Power;
  • history of physical or neurological conditions that interfere with study procedures or assessment of motor function;
  • interruption of treatment for 1 week, or 5 consecutive sessions;
  • participation in other innovative treatment protocols for the upper limb rehabilitation (e.g. robotics, virtual reality, AOT ... etc).

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Villa Bellombra

Bologna, Italy

Location

Azienda Ospedaliero-Universitaria di Ferrara

Ferrara, Italy

Location

Azienda Ospedaliero Universitaria Ospedali Riuniti

Foggia, Italy

Location

IRCCS Centro Neurolesi Bonino Pulejo

Messina, Italy

Location

IRCCS San Raffaele Pisana

Roma, 00163, Italy

Location

IRCCS fondazione Santa Lucia

Rome, Italy

Location

Fondazione "Gli Angeli di Padre Pio"

San Giovanni Rotondo, Italy

Location

Related Publications (18)

  • Tibaek M, Dehlendorff C, Jorgensen HS, Forchhammer HB, Johnsen SP, Kammersgaard LP. Increasing Incidence of Hospitalization for Stroke and Transient Ischemic Attack in Young Adults: A Registry-Based Study. J Am Heart Assoc. 2016 May 11;5(5):e003158. doi: 10.1161/JAHA.115.003158.

    PMID: 27169547BACKGROUND
  • Fang MC, Coca Perraillon M, Ghosh K, Cutler DM, Rosen AB. Trends in stroke rates, risk, and outcomes in the United States, 1988 to 2008. Am J Med. 2014 Jul;127(7):608-15. doi: 10.1016/j.amjmed.2014.03.017. Epub 2014 Mar 25.

    PMID: 24680794BACKGROUND
  • Khellaf M, Quantin C, d'Athis P, Fassa M, Jooste V, Hervieu M, Giroud M, Bejot Y. Age-period-cohort analysis of stroke incidence in Dijon from 1985 to 2005. Stroke. 2010 Dec;41(12):2762-7. doi: 10.1161/STROKEAHA.110.592147. Epub 2010 Nov 11.

    PMID: 21071719BACKGROUND
  • Bejot Y, Delpont B, Giroud M. Rising Stroke Incidence in Young Adults: More Epidemiological Evidence, More Questions to Be Answered. J Am Heart Assoc. 2016 May 11;5(5):e003661. doi: 10.1161/JAHA.116.003661. No abstract available.

    PMID: 27169549BACKGROUND
  • Kwakkel G, Kollen BJ, van der Grond J, Prevo AJ. Probability of regaining dexterity in the flaccid upper limb: impact of severity of paresis and time since onset in acute stroke. Stroke. 2003 Sep;34(9):2181-6. doi: 10.1161/01.STR.0000087172.16305.CD. Epub 2003 Aug 7.

    PMID: 12907818BACKGROUND
  • Nichols-Larsen DS, Clark PC, Zeringue A, Greenspan A, Blanton S. Factors influencing stroke survivors' quality of life during subacute recovery. Stroke. 2005 Jul;36(7):1480-4. doi: 10.1161/01.STR.0000170706.13595.4f. Epub 2005 Jun 9.

    PMID: 15947263BACKGROUND
  • Mehrholz J, Pohl M, Platz T, Kugler J, Elsner B. Electromechanical and robot-assisted arm training for improving activities of daily living, arm function, and arm muscle strength after stroke. Cochrane Database Syst Rev. 2018 Sep 3;9(9):CD006876. doi: 10.1002/14651858.CD006876.pub5.

    PMID: 30175845BACKGROUND
  • Sergi F, Krebs HI, Groissier B, Rykman A, Guglielmelli E, Volpe BT, Schaechter JD. Predicting efficacy of robot-aided rehabilitation in chronic stroke patients using an MRI-compatible robotic device. Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:7470-3. doi: 10.1109/IEMBS.2011.6091843.

    PMID: 22256066BACKGROUND
  • Dodakian L, Sharp KG, See J, Abidi NS, Mai K, Fling BW, Le VH, Cramer SC. Targeted engagement of a dorsal premotor circuit in the treatment of post-stroke paresis. NeuroRehabilitation. 2013;33(1):13-24. doi: 10.3233/NRE-130923.

    PMID: 23949026BACKGROUND
  • Ang KK, Chua KS, Phua KS, Wang C, Chin ZY, Kuah CW, Low W, Guan C. A Randomized Controlled Trial of EEG-Based Motor Imagery Brain-Computer Interface Robotic Rehabilitation for Stroke. Clin EEG Neurosci. 2015 Oct;46(4):310-20. doi: 10.1177/1550059414522229. Epub 2014 Apr 21.

    PMID: 24756025BACKGROUND
  • Ang KK, Guan C, Phua KS, Wang C, Zhao L, Teo WP, Chen C, Ng YS, Chew E. Facilitating effects of transcranial direct current stimulation on motor imagery brain-computer interface with robotic feedback for stroke rehabilitation. Arch Phys Med Rehabil. 2015 Mar;96(3 Suppl):S79-87. doi: 10.1016/j.apmr.2014.08.008.

    PMID: 25721551BACKGROUND
  • Calabro RS, Russo M, Naro A, Milardi D, Balletta T, Leo A, Filoni S, Bramanti P. Who May Benefit From Armeo Power Treatment? A Neurophysiological Approach to Predict Neurorehabilitation Outcomes. PM R. 2016 Oct;8(10):971-978. doi: 10.1016/j.pmrj.2016.02.004. Epub 2016 Feb 20.

    PMID: 26902866BACKGROUND
  • Scano A, Chiavenna A, Malosio M, Molinari Tosatti L, Molteni F. Robotic Assistance for Upper Limbs May Induce Slight Changes in Motor Modules Compared With Free Movements in Stroke Survivors: A Cluster-Based Muscle Synergy Analysis. Front Hum Neurosci. 2018 Aug 15;12:290. doi: 10.3389/fnhum.2018.00290. eCollection 2018.

    PMID: 30174596BACKGROUND
  • Gandolfi M, Vale N, Dimitrova EK, Mazzoleni S, Battini E, Filippetti M, Picelli A, Santamato A, Gravina M, Saltuari L, Smania N. Effectiveness of Robot-Assisted Upper Limb Training on Spasticity, Function and Muscle Activity in Chronic Stroke Patients Treated With Botulinum Toxin: A Randomized Single-Blinded Controlled Trial. Front Neurol. 2019 Jan 31;10:41. doi: 10.3389/fneur.2019.00041. eCollection 2019.

    PMID: 30766508BACKGROUND
  • Corona F, Gervasoni E, Coghe G, Cocco E, Ferrarin M, Pau M, Cattaneo D. Validation of the Arm Profile Score in assessing upper limb functional impairments in people with multiple sclerosis. Clin Biomech (Bristol). 2018 Jan;51:45-50. doi: 10.1016/j.clinbiomech.2017.11.010. Epub 2017 Nov 22.

    PMID: 29179033BACKGROUND
  • Liu L, Miguel Cruz A, Rios Rincon A, Buttar V, Ranson Q, Goertzen D. What factors determine therapists' acceptance of new technologies for rehabilitation - a study using the Unified Theory of Acceptance and Use of Technology (UTAUT). Disabil Rehabil. 2015;37(5):447-55. doi: 10.3109/09638288.2014.923529. Epub 2014 Jun 5.

    PMID: 24901351BACKGROUND
  • Morone G, Pournajaf S, Iosa M, Goffredo M, Leo MR, Paolucci S, Gatta MT, Santamato A, Straudi S, Calabro RS, Franceschini M; Italian PowerUPS-Rehab Study Group. Exoskeleton-Assisted Therapy Enhances Upper Limb Motor Recovery in Early Subacute Stroke: A Multicenter, Single-Blind Randomized Controlled Trial. Stroke. 2026 Mar 12. doi: 10.1161/STROKEAHA.125.052605. Online ahead of print.

  • Pournajaf S, Morone G, Straudi S, Goffredo M, Leo MR, Calabro RS, Felzani G, Paolucci S, Filoni S, Santamato A, Franceschini M, The Italian PowerUPS-Rehab Study Group. Neurophysiological and Clinical Effects of Upper Limb Robot-Assisted Rehabilitation on Motor Recovery in Patients with Subacute Stroke: A Multicenter Randomized Controlled Trial Study Protocol. Brain Sci. 2023 Apr 21;13(4):700. doi: 10.3390/brainsci13040700.

MeSH Terms

Conditions

StrokeParesis

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Marco Franceschini, Prof.

    IRCCS San Raffaele Pisana

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The outcome assessor will be blind to the study protocol.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: This study is a multicentre, single-blind (evaluator) randomized controlled trial (RCT).
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 30, 2020

First Posted

January 6, 2021

Study Start

December 28, 2020

Primary Completion

March 1, 2025

Study Completion

December 24, 2025

Last Updated

December 18, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will share

The study protocol can be found in the publication.

Shared Documents
STUDY PROTOCOL
Time Frame
Actual
Access Criteria
Open Access
More information

Locations