Scoliosis Clinical Trial
Official title:
A Six Years Longitudinal Cohort Study on the Changes in Bone Density, Bone Quality and Its Association With Bone Turnover Markers and Curve Severity in Adolescent Idiopathic Scoliosis With and Without 2 Years of Calcium and Vit-D Supplementation
NCT number | NCT02904421 |
Other study ID # | CALTC4_v1 |
Secondary ID | |
Status | Completed |
Phase | |
First received | |
Last updated | |
Start date | October 2016 |
Est. completion date | November 2019 |
Verified date | December 2019 |
Source | Chinese University of Hong Kong |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational |
The study aimed to:
1. To investigate and compare the changes in bone mineral density (BMD), trabecular bone
micro-architecture, bone strength, and curve severity at a mean of 6 years longitudinal
follow up in AIS girls with low bone mass between Group A and B:
1. Group A: subjects followed at a mean of 4 years after completion of 2-year calcium
and Vit-D supplementation and
2. Group B: subjects without calcium and Vit-D supplementation
2. To evaluate the correlation between changes in BMD, trabecular bone micro-architecture,
and bone strength documented in Objective 1 with changes in serum bone turnover markers
Status | Completed |
Enrollment | 330 |
Est. completion date | November 2019 |
Est. primary completion date | November 2019 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 16 Years to 21 Years |
Eligibility |
Inclusion Criteria: - Subjects from the Cal study Exclusion Criteria: - Subjects that are pregnant - Subjects with fracture |
Country | Name | City | State |
---|---|---|---|
China | Department of Orthopaedics and Traumatology, Prince of Wales Hospital | Hong Kong | Hong Kong |
Lead Sponsor | Collaborator |
---|---|
Chinese University of Hong Kong |
China,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change from baseline clinical features of scoliosis at end of 2 year supplementation and at 4 years post-treatment follow up | A long standard standing postero-anterior (PA) whole spine radiograph will be used for grading curve severity in terms of Cobb angle according to the standard Cobb method. | baseline, end of 2 year supplementation, 4 years post-treatment follow up | |
Primary | Change from baseline BMD Measurement at end of 2 year supplementation and at 4 years post-treatment follow up | Areal BMD (g/cm2) and BMC (g/cm) of bilateral hips (femoral neck) will be measured by DXA. | baseline, end of 2 year supplementation, 4 years post-treatment follow up | |
Primary | Change from baseline volumetric BMD (vBMD), bone geometry and trabecular bone micro-architecture at end of 2 year supplementation and at 4 years post-treatment follow up | Detailed bone measurement of the non-dominant distal radius will be carried out with the in-vivo HR-pQCT using an established measurement protocol. | baseline, end of 2 year supplementation, 4 years post-treatment follow up | |
Primary | Change from baseline bone mechanical strength at end of 2 year supplementation and at 4 years post-treatment follow up | Finite element analysis (FEA) will be used to assess the bone strength non-invasively. Finite element (FE) models of the radius will be created directly from the HR-pQCT images using Scanco FE solver integrated in the IPL software. | baseline, end of 2 year supplementation, 4 years post-treatment follow up | |
Primary | Change from baseline biochemical markers for bone formation and resorption at end of 2 year supplementation and at 4 years post-treatment follow up | Serum P1NP and ß-CTx will be assayed to determine bone formation and resorption activity. | baseline, end of 2 year supplementation, 4 years post-treatment follow up | |
Primary | Change from baseline serum Vitamin D concentration at end of 2 year supplementation and at 4 years post-treatment follow up | Serum 25(OH)Vit-D concentrations will be measured by liquid chromatography isotope-dilution electrospray ionization tandem mass spectrometry (LCTMS). | baseline, end of 2 year supplementation, 4 years post-treatment follow up | |
Secondary | Change from baseline dietary intakes and physical activity at end of 2 year supplementation and at 4 years post-treatment follow up | The dietary intake and physical activity data are recorded as covariates for statistical analysis on bone changes of the study groups. | baseline, end of 2 year supplementation, 4 years post-treatment follow up | |
Secondary | Change from baseline anthropometric measurements and maturity assessment at end of 2 year supplementation and at 4 years post-treatment follow up | Detail anthropometric measurements including body height, weight, arm span will be measured with standard stadiometry techniques. | baseline, end of 2 year supplementation, 4 years post-treatment follow up |
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