Anisotropic Textile Braces for Adolescent Idiopathic Scoliosis

March 11, 2025 updated by: Joanne Yip, The Hong Kong Polytechnic University

Safety and Efficacy of Anisotropic Textile Braces for Adolescent Idiopathic Scoliosis

One of the most common types of 3-dimensional spinal deformities with unknown etiology in youths is adolescent idiopathic scoliosis (AIS). The spinal curvature increases as puberty progresses. Generally, rigid orthotic bracewear is prescribed as non-invasive treatment for moderate AIS if treatment begins early and the orthosis is worn with compliance. Obviously, teenage patients are reluctant to accept a rigid orthosis due to aesthetics and the physical constraint. Therefore, semi-rigid and flexible orthoses have been developed, but their efficacy is still controversial and there are other issues, such as high pain scores. There is clearly room for improvement. Therefore, a garment-type of bracewear will be designed and developed to correct spinal deformity, reduce the possibility of spinal curve progression, and satisfy the needs of the patients as well as take their psychological concerns into consideration.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The design of the anisotropic textile braces will provide different mechanisms with rigid, semi-rigid and flexible materials:

  1. axial elongation through a close fit of the brace supported with textile composites on the lateral sides of the trunk,
  2. 3-point pressure with push and counter-pushes through semi-rigid pads inserted inside the pocket lining,
  3. pulling or compression to correct kyphosis or lordosis in the sagittal plane with elastic bands,
  4. derotation between the pelvis and shoulders with uneven straps, and
  5. an active mechanism with sensors added to the brace to maintain correct posture.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
15

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • China
      • Hong Kong, China
    • Guangdong
      • Hong Kong, Guangdong, China, 999077
        • Recruiting
        • The Hong Kong Polytechnic University

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

10 years to 14 years (Child)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Aged 10 to 14 years
  • Diagnosis of AIS
  • a Cobb's angle between 20 to 30 degrees
  • a Risser grade of the iliac crest of ≤ 2
  • Pre-menarche or post- menarche by no more than 1 year
  • Ability to read and understand English or Chinese
  • Physical and mental ability to adhere to anisotropic textile braces protocol

Exclusion Criteria:

  • Contraindications for x-ray exposure
  • Diagnosis of other musculoskeletal or developmental illness that might be responsible for the spinal curvature
  • History of previous surgical or orthotic treatment for AIS
  • Contraindications for pulmonary and/ or exercise tests
  • Psychiatric disorders
  • Recent trauma
  • Recent traumatic (emotional) event

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Anisotropic Textile Braces
The design of the anisotropic textile braces will provide different mechanisms with rigid, semi-rigid and flexible materials: a) axial elongation through a close fit of the brace supported with textile composites on the lateral sides of the trunk, b) 3-point pressure with push and counter-pushes through semi-rigid pads inserted inside the pocket lining, c) pulling or compression to correct kyphosis or lordosis in the sagittal plane with elastic bands, d) derotation between the pelvis and shoulders with uneven straps, and e) an active mechanism with sensors added to the brace to maintain correct posture.
Device: Anisotropic Textile Braces
The period of the wear trial is 12-18 months in time for each subject. Wear instructions (23 hrs per day) and wash instructions will be provided to the subjects before the wear trial. Evaluation tests based on health in consideration of the use of the anisotropic textile brace (heart and pulmonary function testing and sensory level measurements) will be carried out at the beginning of the wear trial. Clinical, radiography, self-report and follow-up after completion of the study

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Progression of the spinal curve
Time Frame: 18 months
The spinal curve is said to be under control if the increase in the Cobb's angle is <5°
18 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Posture improvement
Time Frame: 18 months
Improvement of posture by clinical photographs assessment
18 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
The Hong Kong Polytechnic University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
January 1, 2017

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2025

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2025

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 27, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 27, 2015

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 28, 2015

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 25, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 11, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2025

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • GRF2016

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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