"DOES MYOBLOC™ IMPROVE FUNCTIONAL HAND USE IN YOUNG CHILDREN WITH A HYPERTONIC UPPER EXTREMITY?"
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ClinicalTrials.gov Identifier: NCT00238641 |
Recruitment Status :
Completed
First Posted : October 13, 2005
Last Update Posted : October 13, 2005
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Cerebral Palsy | Drug: Botulinum Toxin type B | Phase 1 Phase 2 |
Subjects: 10 subjects age 2-17 years with hypertonia affecting one or both upper extremities, but without injections of neuromuscular blocking agents for six months prior to enrollment, or surgery on the upper extremity.
Intervention: Injection of Myobloc™ in 2 sites per muscle for up to two muscles of each upper extremity (biceps, brachioradialis), at a maximum dose of 25Units/kg/arm for the first injection, a maximum of 50Units/kg/arm for the second injection, and a maximum of 100Units/kg/arm for the third injection. If there is significant weakness or worsening of function following any injection, the dose will not be increased for subsequent injections. Injections will be performed after placement of topical anesthetic (ELA-MAX™ cream), using EMG guidance to identify active muscles contributing to hypertonia.
Primary outcome measures: The primary outcome measure is the time it takes to complete maximum arm extension during voluntary reaching, measured from the coraco-acromial joint to the midpoint of the dorsum of the wrist. Change scores will be calculated between intake and 1 month (baseline effect), 1 month and 2 months (first injection effect), 4 months and 5 months (second injection effect), and 7 months and 8 months (third injection effect). A device called a Shape Tape (Measureand, Inc.) will be used to measure this outcome. Shape Tape is a flexible strip of portable spring steel with optic fiber that provides instantaneous readouts to a portable computer of bends and twists and other forms of movement capture that can be conducted in a clinical setting. The Shape Tape is fastened loosely to the body part under measurement (in this case, the subject's wrist and shoulder) with either medical-grade adhesive tape or Velcro. The shapetape is connected to a portable computer, and custom software allows measurement of the average velocity of hand movement during reaching.
Secondary outcome measures: The rater will compare improvement or worsening in global arm function through the Unified Dystonia Rating Scale (UDRS), the motor subscale of the Unified Parkinson's Disease rating scale (UPDRS), and the Burke-Fahn-Marsden dystonia scale (BFM). Comparisons will be performed between intake and 1 month (baseline effect), 1 month and 2 months (first injection effect), 4 months and 5 months (second injection effect), and 7 months and 8 months (third injection effect). Other secondary measures include neurological examination, Ashworth spasticity scale, and comparisons of numerical stiffness measures as measured by the Rigidity Analyzer Device. A parent rating scale, the Pediatric Quality of Life Inventory (PedsQL), will be used to determine overall functional improvement.
Statistical analysis: The outcomes will be tested at the 0.05 level of significance using repeated-measures analysis of variance (ANOVA) and the Friedman nonparametric test applied to the 4 repeated change scores for each of the primary and secondary outcome measures. Tests of significance for the secondary measures will be corrected for multiple comparisons.
Study Type : | Interventional (Clinical Trial) |
Enrollment : | 10 participants |
Allocation: | Non-Randomized |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | "DOES MYOBLOC™ IMPROVE FUNCTIONAL HAND USE IN YOUNG CHILDREN WITH A HYPERTONIC UPPER EXTREMITY?" |
Study Start Date : | January 2002 |
Study Completion Date : | May 2005 |

- The primary outcome measure is the time it takes to complete maximum arm extension during voluntary reaching, measured from the coraco-acromial joint to the midpoint of the dorsum of the wrist.
- The rater will compare improvement or worsening in global arm function through the Unified Dystonia Rating Scale (UDRS), the motor subscale of the Unified Parkinson's Disease rating scale (UPDRS), and the Burke-Fahn-Marsden dystonia scale (BFM). Compar

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Ages Eligible for Study: | 2 Years to 18 Years (Child, Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- 1. Age 2- 17 years 2. Hypertonia affecting one or both upper extremities 3. Hypertonia caused by static encephalopathy due to prenatal or perinatal injury 4. Cognitive and motor function sufficient so that the child will reliably reach toward a target or a small toy 5. Concurrent enrollment in "standard of care" physical therapy or occupational therapy services
Exclusion Criteria:
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1. Injection of neuromuscular blocking agents to any extremity within six months prior to enrollment 2. Dose changes of trihexyphenidyl, dantrolene, baclofen, dopaminergic agents or benzodiazepines during the course of the study.
3. Any use of aminoglycoside antibiotics during the study. 4. Prior surgery to either upper extremity 5. Initiation or change in physical or occupational therapy regimen within 3 months of study entry 6. Progressive or neurodegenerative disease, or suspicion of an inborn error of metabolism 7. Neuropathy, myopathy, or neuromuscular junction disease 8. Congenital deformities of either upper extremity 9. Respiratory or airway compromise, or use of respiratory medications 10. Cardiomyopathy 11. Any other medical condition that would place the child at risk for participation

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00238641
United States, California | |
Stanford University | |
Stanford, California, United States, 94305-5235 |
Principal Investigator: | Terence Sanger, MD, PhD | Stanford University |
ClinicalTrials.gov Identifier: | NCT00238641 |
Other Study ID Numbers: |
Myobloc2002 |
First Posted: | October 13, 2005 Key Record Dates |
Last Update Posted: | October 13, 2005 |
Last Verified: | October 2005 |
Cerebral Palsy Brain Damage, Chronic Brain Diseases Central Nervous System Diseases Nervous System Diseases rimabotulinumtoxinB Botulinum Toxins Botulinum Toxins, Type A abobotulinumtoxinA |
Acetylcholine Release Inhibitors Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Cholinergic Agents Neurotransmitter Agents Physiological Effects of Drugs Neuromuscular Agents Peripheral Nervous System Agents Anti-Dyskinesia Agents |