NCT06648486

Brief Summary

The goal of this clinical trial is to evaluate the long-term effects of isokinetic rehabilitation training in patients with spinal muscular atrophy (SMA). The main question it aims to answer is:

  • Does isokinetic training at fixed angular velocity improve muscle strength and functional recovery in SMA patients? Participants will:
  • Perform isokinetic training using a portable device with a fixed angular velocity.
  • Undergo long-term rehabilitation sessions, with assessments of muscle strength and overall functional improvement over the training period.

Trial Health

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Monitor

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
13

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
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

October 3, 2024

Completed
15 days until next milestone

First Posted

Study publicly available on registry

October 18, 2024

Completed
4 months until next milestone

Study Start

First participant enrolled

February 25, 2025

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

August 30, 2025

Completed
Last Updated

August 29, 2025

Status Verified

August 1, 2025

Enrollment Period

6 months

First QC Date

October 3, 2024

Last Update Submit

August 27, 2025

Conditions

Outcome Measures

Primary Outcomes (7)

  • Change in cross sectional area of quadriceps

    Using Magnetic Resonance Imaging (MRI)

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in longitudinal cross-sectional width of quadriceps

    Using Magnetic Resonance Imaging (MRI)

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in peak torque

    Using isokinetic training robot to measure.

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in average torque

    Using isokinetic training robot to measure.

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in work of knee

    Work = Torque \* Speed

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in Surface Electromyography (sEMG)

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in Nerve conduction

    Nerve Conduction Velocity Testing System

    Baseline, after 1.5 months, after 3 months and after 4 months

Secondary Outcomes (3)

  • Change in weight

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in height

    Baseline, after 1.5 months, after 3 months and after 4 months

  • Change in joint angle

    Baseline, after 1.5 months, after 3 months and after 4 months

Study Arms (3)

Robot-assisted Rehabilitation for children with SMA type II

EXPERIMENTAL
Device: With the assistance of wearable isokinetic training robot ( 7 children with SMA type II)

Non-robot-assisted Rehabilitation for children with SMA type II

NO INTERVENTION

Prior to the intervention, all participants will complete a 1.5-month "Stage 0" observation period with no robot assistance. During this time, we will record each child's sit-to-stand angle to establish baseline (control) measurements.

Biomechanical measures for healthy children

NO INTERVENTION

A single set of biomechanical measurements will be taken from healthy children to serve as a reference baseline.

Interventions

A child with SMA will use a wearable isokinetic training robot to train the knee joint for three stages. ( Stage 1: 1.5 months=30 sessions; Stage 2 (follow up): 1.5 months=18 sessions, Stage 3(follow up) = 0 session)

Robot-assisted Rehabilitation for children with SMA type II

Eligibility Criteria

Age6 Years - 12 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Age range: 6-12 years old.
  • Diagnosed with Type II Spinal Muscular Atrophy (SMA).

You may not qualify if:

  • Participants with severe comorbidities, implanted medical devices preventing MRI or claustrophobia were excluded from the study.
  • Refusal to provide informed consent or inability to complete the entire study protocol, among other factors;
  • Uncontrolled hypertension (systolic blood pressure ≥160 mmHg and/or diastolic blood pressure ≥95 mmHg) or congestive heart failure classified as New York Heart Association (NYHA) Class III or IV;
  • Cognitively impaired or unable to comprehend the requirements of study participation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Peking University Third Hospital

Beijing, Beijing Municipality, 100091, China

RECRUITING

MeSH Terms

Conditions

Muscular Atrophy, Spinal

Condition Hierarchy (Ancestors)

Spinal Cord DiseasesCentral Nervous System DiseasesNervous System DiseasesMotor Neuron DiseaseNeurodegenerative DiseasesNeuromuscular Diseases

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
7 Children with SMA, 6 Healthy Children as comparison
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principle Investigator

Study Record Dates

First Submitted

October 3, 2024

First Posted

October 18, 2024

Study Start

February 25, 2025

Primary Completion

August 30, 2025

Study Completion

August 30, 2025

Last Updated

August 29, 2025

Record last verified: 2025-08

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