Does Botulinum Toxin A Make Walking Easier in Children With Cerebral Palsy?

Summary

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Description

This is an industry independent multicentre clinical trial. The randomization will be done by a computer number random generator and will be carried out and held by the unit of Applied Clinical Research at NTNU. Two strata: age and center. The study will be conducted according to Consort guidelines ...

This is an industry independent multicentre clinical trial. The randomization will be done by a computer number random generator and will be carried out and held by the unit of Applied Clinical Research at NTNU. Two strata: age and center. The study will be conducted according to Consort guidelines and guidelines for Good Clinical Practice. It is approved by the local Ethical committee (REK Nord) and the Norwegian Drug Agency. Primary research question is: Do BoNT-A injections in the calf muscles make walking easier in children with CP? Secondary research questions: 1) Do BoNT-A injections in the calf muscles increase activity? 2) Do BoNT-A injections in the calf muscles improve walking capacity 3) Do BoNT-A injections in the calf muscles improve perceived performance and satisfaction related to mobility tasks and 4) Do BoNT-A injections in the calf muscles reduce recurrent musculoskeletal pain? The participants will receive the treatment with both local anaesthesia and conscious sedation with oral or nasal benzodiazepines.Outcome measures are made at baseline and 4, 12 and 24 weeks after treatment, with primary endpoint at 12 weeks. Data will be analyzed using a linear mixed model (LMM). The difference in change in the primary outcome measure (energy cost during walking) between the treated and placebo groups will be done using a post hoc test following the LMM. Secondary, the same model will be used to test for an effect also at 4 and 24 weeks post injection. Age, GMFCS Level, number of prior BoNT-A treatments and study center will be considered as potential covariates. A substudy will be conducted within the frames of this RCT, aiming to identify characteristics of those who respond to the treatment compared to those who do not respond (outcome measures 6, 7,8 and 9).

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