A Phase III Prospective, Multi-center, Randomised, Evaluator-blinded Study to Compare Neuromuscular Junction (NMJ) Targeted Technique for Dysport Injections in Upper Limb Spasticity Post Stroke or Traumatic Brain Injury to the Technique Used in Current Clinical Practice

A-99-52120-162

The aim of the study was to compare Dysport treatment results (as assessed by Modified Ashworth Scale (MAS) in the elbow joint 4 weeks post treatment) following two treatment techniques: the current clinical practice injection technique using high-concentration dilution (300 U/mL Dysport) versus the neuromuscular junction (NMJ)-targeted injection technique using low-concentration dilution (100 U/mL Dysport). The hypothesis was that one high-volume, low-concentration injection located centrally in the area/band of the NMJ zones would be as effective as the technique used in current medical practice.

2012-09-01

2015-03-01

2015-03-01

Terminated

Early phase I

100

Inclusion Criteria: * Provision of written informed consent prior to any study related procedures. * Subjects male or female, aged 18 years or older. * Upper limb spasticity post stroke or traumatic brain injury. * Spasticity position pattern type 1, 3 or 4. * Elbow flexor muscles spasticity MAS 2 to 3. * At least 2 consecutive previous treatment cycles of BoNT-A for current diagnosis. * The latest treatment cycle demonstrating good treatment efficacy where the Dysport dose administered was considered to be adequate according to Investigator judgement. * Need of the same treatment modality in muscle (m.) brachialis, m. biceps brachii, m. brachioradialis, m. flexor carpi ulnaris, m. flexor carpi radialis as the previous treatment cycle. * Last BoNT-A treatment 12-24 weeks ago. Exclusion Criteria: * Poor response to BoNT-A treatment, according to Investigator. * Need of Dysport doses \>800 U in the upper limb. * Concomitant treatment with BoNT-A for other indications than spasticity. * Any elbow flexor contracture prohibiting MAS evaluation and/or elbow flexion improvement of at least 1 step on the MAS. * Cutaneous or joint inflammation in the affected upper limb. * Was likely to start other spasticity treatment during the study. * Was likely to start physiotherapy treatment during the study. * Other ongoing neurological disorder (e.g., myasthenia gravis). * History of dysphagia or aspiration. * Use of agents interfering with neuromuscular transmission (e.g., aminoglycosides). * Treated with an investigational medicinal product within 30 days before start of the study. * Known sensitivity to BoNT-A or any components of Dysport. * Was at risk of pregnancy or was lactating. Females of childbearing potential must have provided a negative pregnancy test (urinary human chorionic gonadotropin (U-hCG)) at Visit 1 and must have been using adequate contraception. Non-childbearing potential was defined as post-menopause for at least one year, surgical sterilisation or hysterectomy at least three months before the start of the study. * Had a history of, or known current, problems with alcohol or drug abuse. * Had a mental condition rendering the subject unable to understand the nature, scope and possible consequences of the study, and/or evidence of an uncooperative attitude. * Had abnormal Baseline findings, any other medical condition(s) or laboratory findings that, in the opinion of the investigator, might have jeopardised the subject's safety or decreased the chance of obtaining satisfactory data needed to achieve the objective(s) of the study.

{'studyType': 'INTERVENTIONAL', 'phases': ['PHASE3'], 'designInfo': {'allocation': 'RANDOMIZED', 'interventionModel': 'PARALLEL', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'SINGLE', 'whoMasked': ['OUTCOMES_ASSESSOR']}}, 'enrollmentInfo': {'count': 100, 'type': 'ACTUAL'}}

2022-09-27