- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02153255
Dynamic Gait Analysis in Children With Mucopolysaccharidosis Type IVa
Mucopolysaccharidosis Type IVa (MPS IVa, Morquio Disease) is a rare inherited lysosomal storage disorder caused by deficiency of the enzyme galactose-6-sulfatase.
Children with this disease accumulate a chemical called keratan sulphate, which stops their skeletons developing properly. They are very short in stature and many of their joints are unstable. Children with MPS IVa walk in a different way to other people due to a combination of lax ligaments and skeletal problems such as knock-knees.
Human walking involves the coordinated movements of all four limbs. As we walk, the arms swing oppositely to the legs. This movement pattern is very different in children with MPS IVa. This change seems to involve the whole musculoskeletal system and depends on the severity of the disease.
Recent studies in children with MPS IVa describing walking pattern have concentrated solely on the lower or upper limb respectively, and have not looked at the interaction of the upper and lower limbs during walking.
To our knowledge, the mechanics of walking in children with MPS IVa has not been investigated using a dynamic gait analysis tool (using cameras, sensors and electrodes to track the movements of different parts of the body during walking) and we aim to characterise this in a small number of children with MPS IVa and also examine the effects of splinting the wrist upon the walking pattern to see if this simple intervention makes it easier or more difficult for children with MPS IVa to walk.
Aperçu de l'étude
Statut
Les conditions
Type d'étude
Contacts et emplacements
Lieux d'étude
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West Midlands
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Birmingham, West Midlands, Royaume-Uni, B4 6NH
- Birmingham Children's Hospital NHS Foundation Trust
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Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
Méthode d'échantillonnage
Population étudiée
La description
Inclusion Criteria:
- Confirmed diagnosis of MPS IVa (documented history of reduced leucocyte GALNS enzyme activity relative to the normal range of the laboratory performing the assay AND/OR molecular analysis showing two pathogenic mutations in the GALNS gene)
- Willing and able to provide written assent and parent/legal guardian able to provide written informed consent after the nature of the study has been explained and prior to any research-related procedures
- Between 6 and 18 years of age inclusive
- Willing to perform all study procedures as far as physically possible
Exclusion Criteria:
- Inability to comply with Gait Analysis protocol (e.g. nonambulant)
- Recent orthopaedic surgery that investigator deems might impact on Gait Analysis
- Use of any investigational product or investigational medical device other than BMN110 within 30 days prior to recruitment, or requirement for any investigational agent other than BMN110 prior to completion of all scheduled study assessments
- Concurrent disease or condition that would interfere with study participation or safety
- Any condition that, in the view of the Principal or Subinvestigators, places the subject at high risk of not completing the study procedures
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
Cohortes et interventions
Groupe / Cohorte |
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Children With Mucopolysaccharidosis Type IVa
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Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Evidence of abnormal walking pattern and surface EMG activity as assessed by Dynamic Gait Analysis
Délai: Within 6 months of recruitment
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Assessment of head, trunk and joint positions during walking using a 12 camera Vicon motion analysis system.
Surface EMG analysis using a 16 channel wireless surface electromyographic (sEMG) system.
Assessment of lower limb joint moments and powers using Kistler 9281 and AMTI OPT 400600 force plates.
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Within 6 months of recruitment
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Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
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Change in gait pattern over one year
Délai: 12 months after first analysis
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Comparison of two gait analysis studies taken 12 months apart
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12 months after first analysis
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Effect on gait pattern of using wrist splints
Délai: Within 6 months of recruitment
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Assessment of repeat gait analysis measurements done at first visit whilst wearing wrist splints
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Within 6 months of recruitment
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Effect on gait pattern of lower limb surgery
Délai: Within 3 and 6 months of any lower limb surgery
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Further gait analysis studies will be done if a child undergoes any lower limb orthopaedic surgery during the study period and compared with pre-surgery analyses
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Within 3 and 6 months of any lower limb surgery
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Collaborateurs et enquêteurs
Collaborateurs
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Estimation)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Maladies métaboliques
- Maladies génétiques, innées
- Maladies musculo-squelettiques
- Maladies du tissu conjonctif
- Maladies osseuses
- Métabolisme des glucides, erreurs innées
- Métabolisme, erreurs innées
- Maladies de surcharge lysosomale
- Mucinoses
- Maladies osseuses, développement
- Mucopolysaccharidoses
- Ostéochondrodysplasies
- Mucopolysaccharidose IV
Autres numéros d'identification d'étude
- 14/WM/0120
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