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Treatment With Xeomin Versus Botox in Children With Spastic Equine and Equinovarus Foot Deformation in Pediatric Cerebral Palsy

Phase 2
Completed
Conditions
Spastic Paraplegia and Hemiparesis
Equine and Equinovarus Foot Deformation
Cerebral Palsy
Interventions
Registration Number
NCT02188277
Lead Sponsor
Merz Pharmaceuticals GmbH
Brief Summary

1. To assess the clinical and neurophysiological efficacy of Xeomin® vs. Botox® in children with spastic equine and equinovarus foot deformation in pediatric cerebral palsy

2. To assess the safety of Xeomin® use as compared to Botox® in this patient population

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
64
Inclusion Criteria
  • Children from 2 through 12 years of age, of both sexes, suffering from spastic paraplegia or hemiparesis in pediatric cerebral palsy.
  • Equine and equinovarus foot posture.
  • Gastrocnemius spasticity of 2 points and greater, by modified Ashworth scale.
  • Patient can walk unassisted or with a support.
  • Mental development of patients is normal or mildly retarded.
  • Previous course of spasticity treatment with BTA products was completed earlier than at 6 months before this trial or never administered before.
  • Patient's parents have signed an informed consent, are able and wishing to adhere to procedures described in the trial protocol and to the schedule of visits throughout the entire period of treatment.
Exclusion Criteria
  • Fixed ankle joint contracture.
  • Previous denervation of spastic muscles by surgery, phenol or alcohol;
  • Athetosis and dystonia in the area of injected muscles.
  • Inflammation at the planned injection site.
  • Elevated body temperature and acute (infectious and non-infectious) diseases at the time of injection.
  • Neuromuscular transmission disorders (myasthenia gravis, Lambert-Eaton syndrome, etc.).
  • Decompensated physical diseases potentially affecting the trial findings.
  • Acute fever, infection or surgery within 1 month before the trial.
  • Use of aminoglycosides or spectinomycin within 1 month before starting the trial.
  • Hypersensitivity to any of product ingredients.
  • Positive history for allergies (especially with regard to protein-containing products).
  • Patient's parents are unable or unwilling to adhere to the trial protocol requirements including signing the informed consent and conforming to the schedule of visits.
  • Participation in other clinical trials in the last 4 weeks before inclusion.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Botox®Botox®4-6(8) Units per kg body weight. Single injection cycle.
Xeomin®Xeomin4-8 Units per kg body weight. Single injection cycle.
Primary Outcome Measures
NameTimeMethod
Changes from baseline in the degree of spasticity in gastrocnemius according to modified Ashworth scale (AS)From baseline to day 30

The AS is a well known and commonly used scale in clinical trials with spasticity. In spastic muscles the resistance to passive movement is assessed. It is a 5-point scale that ranges from 0 (=no increase in tone) to 4 (=limb rigid in flexion or extension).

Secondary Outcome Measures
NameTimeMethod
Changes from baseline in the ratio of M-response recorded from the lateral and medial gastrocnemius heads and from tibialis anteriorFrom baseline up to day 90
Changes from baseline in angles and angle ratio of ankle joints at passive and voluntary extensionFrom baseline up to day 90
Changes from baseline in the degree of spasticity in gastrocnemius according to modified Ashworth scaleBaseline up to day 90
Percentage of decrease in M-response magnitude and area recorded from the lateral and medial gastrocnemius heads, from baseline valuesFrom baseline up to day 90

Electromyography: The amplitude of a compound muscle action potential (M-wave) is recorded. An electrical stimulation is considered supramaximal when the M-wave amplitude no longer increases while increasing the stimulus. The measurements include the M-wave amplitude and the negative peak area of the M-wave.

Changes from baseline in motor activity according to Gross Motor Function Classification Systems (GMFCS) criteriaFrom baseline up to day 90

GMFCS is a 5-level classification system that is a standardized observational instrument for children with CP developed to measure change in gross motor function over time.

Changes from baseline in patient percentage in groups by the degree of gastrocnemius spasticity according to modified Ashworth scaleFrom baseline up to day 90

Trial Locations

Locations (3)

Federal State Budget Educational Institution of Higher Professional Learning "Stavropol State Medical University" of the Ministry of Health of the Russian Federation

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Stavropol, Russian Federation

Federal State Autonomous Institution "Scientific Center of Children's Health" of the Ministry of Health of the Russian Federation

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Moscow, Russian Federation

State Budget Institution of Health in Moscow "Scientific and Practical Center of Pediatric psychoneurology Moscow Health Department"

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Moscow, Russian Federation

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