Cystic Fibrosis
Conditions
Keywords
Cystic Fibrosis, High-Resolution peripheral Quantitative Computed Tomography, Bone Mass Density
Brief summary
Patients with cystic fibrosis are at risk of developing low bone mineral density (BMD) potentially leading to pathological fractures at adult age. Recent data from our center and others have suggested that low BMD could be observed very early in life. However, quantitative bone abnormalities found out by Dual X-ray absorptiometry (DXA) need to be confronted to qualitative evaluation of bone microarchitecture (surrogate of bone strength). High-Resolution peripheral quantitative computed tomography (HR-pQCT) is a recent technology with very high spatial resolution. Images obtained with this technic are considered as virtual bone biopsies. It enables an accurate bones' cortical and trabecular surfaces exploration in a three-dimensional manner, and therefore provides informations on bone microarchitecture as well as bone density. The aim of this study is to evaluate bone microarchitecture of paediatric patients matched to sex-age-pubertal status-healthy volunteers. In the meantime, biological markers will be collected and DXA (Dual-energy x-ray absorptiometry) will be performed in order to explore potential correlations HR-pQCT parameters.
Interventions
OTHERscan examination HR-pQCT
Sponsors
Hospices Civils de Lyon
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
10 Years to 18 Years
Healthy volunteers
Yes
Inclusion criteria
* Cystic Fibrosis patient of both sex * Pubertal patient * Age ≥10 years and ≤18 years on the date of informed consent * FEV1(forced expiratory volume at one second ) ≥ 60% of predicted normal for age, gender and height * Patient on a clinical stable period
Exclusion criteria
* Unable to maintain arm and/or leg immobile for 3 minutes * History of solid organ transplantation * Participation in the same time to a clinical trial * Acute pulmonary exacerbation at the time of evaluation
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Total Tibial Bone Mass Density measured by High-Resolution peripheral Quantitative Computed Tomography | at the inclusion visit J0 |
Secondary
| Measure | Time frame |
|---|---|
| total radial bone mass density | at the inclusion visit J0 |
| Trabecular bone micro-architecture at tibia and radial sites | at the inclusion visit J0 |
| Biological markers : 1) bone markers : parathyroid hormone (PTH), Calcifediol (25(OH)D3), osteocalcin, Endocrinal markers : IGF-1 (insulin like growth factor ), IGFBP-3, leptin, adiponectin, visfatin, resistin | at the inclusion visit J0 |
Countries
France
Outcome results
None listed