NCT03641469

Brief Summary

This is a pilot study to collect preliminary short-term data concerning the safety and performance of the Green Sun Dynamic brace in a sample of subjects with adolescent idiopathic scoliosis who are currently being treated with a TLSO.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started May 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

7 active sites

Status
completed

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

May 24, 2018

Completed
7 days until next milestone

First Submitted

Initial submission to the registry

May 31, 2018

Completed
3 months until next milestone

First Posted

Study publicly available on registry

August 22, 2018

Completed
5.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 2, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 2, 2024

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

June 12, 2025

Completed
Last Updated

June 12, 2025

Status Verified

May 1, 2025

Enrollment Period

5.9 years

First QC Date

May 31, 2018

Results QC Date

April 8, 2025

Last Update Submit

May 28, 2025

Conditions

Keywords

Adolescent Idiopathic Scoliosisthoracolumbosacral orthosisspinal orthotichealth-related quality of lifetreatment adherence

Outcome Measures

Primary Outcomes (3)

  • Percentage of Participants With Acceptable GSM In-Brace Correction

    Acceptable GSM in-brace correction was defined as a difference of 10 degrees or less between the TLSO and GSM in-brace Cobb angles.

    Baseline (TLSO measurement) to GSM brace delivery (GSM measurement) within 60 days

  • Percentage of Participants With Curve Stability or Progression at 3-month Follow-up

    Curve stability is defined as progression of 10 degrees or less between the Cobb angle at baseline and at follow-up after GSM wear (Baseline Cobb angle minus follow-up Cobb angle).

    Baseline to ~3 mo Follow-up

  • Unanticipated Adverse Events

    Unanticipated adverse events associated with the GSM brace and patient characteristics likely to raise safety issues

    Up to 1 year

Secondary Outcomes (3)

  • Change in Brace-related Quality of Life Scores (Brace Questionnaire)

    Baseline to Visit 3 (3-4 months post-baseline)

  • Change in Quality of Life Scores

    Baseline to Visit 3 (3-4 months post-baseline)

  • Difference in Vital Capacity Measured in TLSO and GSM Brace

    Baseline

Study Arms (1)

Green Sun Dynamic Brace

EXPERIMENTAL

Historical measures of brace effectiveness (in- and out-of-brace Cobb angles), wear time, and brace-related quality of life will be compared to those measured after the subject is fit with a Green Sun dynamic brace.

Device: Green Sun Dynamic Brace

Interventions

Change from standard-of-care TLSO to GSM brace

Green Sun Dynamic Brace

Eligibility Criteria

Age10 Years - 15 Years
Sexfemale
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Diagnosis of AIS
  • Current treatment with a TLSO, of ≥5 months' duration
  • Existing 3D surface scan of torso and out-of-brace x-ray within the past 6 months
  • One curve apex below T7
  • Ability to read and write English
  • Age 10-15 years
  • Female sex

You may not qualify if:

  • \) Parents/patients who decline participation and/or do not sign the consent/assent documents 2) Pregnant women 3) Unwilling or unable to return for follow-up visits

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Children's Hospital of Los Angeles

Los Angeles, California, 90027, United States

Location

Shriners Children's Southern California

Pasadena, California, 91105, United States

Location

Shriners Hospitals for Children - Northern California

Sacramento, California, 95817, United States

Location

Children's Healthcare of Atlanta

Atlanta, Georgia, 30342, United States

Location

Children's Mercy Kansas City

Kansas City, Missouri, 64108, United States

Location

Shriners Children's St. Louis

St Louis, Missouri, 63110, United States

Location

National Scoliosis Center

Fairfax, Virginia, 22031, United States

Location

MeSH Terms

Conditions

Treatment Adherence and Compliance

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Limitations and Caveats

1. Enrollment and data collection was interrupted by COVID (e.g. spirometry testing was suspended) 2. Of the 11 subjects who did not complete the 30 day visit (\>75 days of follow-up), 6 were among the first 10 subjects enrolled.The GSM brace underwent design and materials changes during the trial, especially during the evaluation of the first 10 subjects. 3. One study site shut down before all subjects had finished the protocol, resulting in missing data (n=2)

Results Point of Contact

Title
James A. Arthur
Organization
Green Sun Medical

Study Officials

  • Jamie Haggard

    Green Sun medical

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Masking Details
The outcomes assessor will be blinded to brace type when measuring the out-of-brace x-ray.
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Model Details: Current TLSO users will crossover to use of the GSM brace.
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 31, 2018

First Posted

August 22, 2018

Study Start

May 24, 2018

Primary Completion

May 2, 2024

Study Completion

May 2, 2024

Last Updated

June 12, 2025

Results First Posted

June 12, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share

Locations