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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01935544
Other study ID # CHU-0153
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date November 19, 2013
Est. completion date February 12, 2019

Study information

Verified date October 2019
Source University Hospital, Clermont-Ferrand
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Botulinum toxin injections are an effective treatment of limb spasticity after stroke. Different tracking techniques are used to locate a proper injection spot. Palpatory technique is barely effective and induces a high risk of error. Localization by electro stimulation is frequently used in adults, but often requires multiple painful repositioning of the needle. Ultrasound tracking is sometimes used in children but not much in adults.

The advantages of ultrasound-guided botulinum toxin injections are a painless localization and greater injection accuracy. Safety is therefore enhanced since intravascular injection is easily avoided.

The few existing publications on the subject are essentially case reports. Few studies have focused on comparing different injection techniques and so far, no well-conducted study has highlighted superior efficiency of ultrasound-guided injections.


Description:

Objectives:

The main objective is to compare the efficiency of botulinum toxin injections depending on the localization technique: ultrasound vs. electrical stimulation.

The secondary objective is to demonstrate less painful localization associated to ultrasound-guidance.

Evaluations:

The primary endpoint is the variation of passive range of motion of ankle dorsiflexion at slow speed and high speed ("Tardieu scale") while keeping knee straight.

The secondary endpoints are:

- The other components of the "Tardieu scale": quality of muscle reaction (X) at slow speed and fast speed, angle of apparition of the muscle reaction (Y) at slow speed and fast speed.

- Assessment of spasticity of the triceps surae on the modified Ashworth scale.

- The walking speed.

- The extent of pain at the injection site by visual analogue scale.

- The duration of tracking and injection.

Methodology:

This prospective, randomized, single-center, single-blind, cross-over, study will be conducted in chronic stroke patients with spasticity of the triceps surae.

Patients will receive two injections during the protocol, each with a different technique of localization. Randomization will determine which technique will be used in the first and the second place.

Patients will be selected from the cohort of patients supported by consultation of Physical Medicine and Rehabilitation Department of the University Hospital of Clermont-Ferrand. Injections of botulinum toxin and assessments will take place in the same department.

The study period is five months for each patient. This study does not present a major risk for the subjects. The main inconvenience is injection pain or side effects of botulinum toxin (increase of motor deficits or dysphagia).


Recruitment information / eligibility

Status Completed
Enrollment 30
Est. completion date February 12, 2019
Est. primary completion date February 12, 2019
Accepts healthy volunteers No
Gender All
Age group 18 Years to 80 Years
Eligibility Inclusion Criteria:

- Age 18 to 80 years.

- Hemiplegia sequelae of stroke

- Spasticity of the triceps surae listed at least 1 + / 4 on the modified Ashworth scale

- Ability to give written consent

Exclusion Criteria:

- Injection of botulinum toxin older than 3 months

- Patient who has already received ultrasound-guided injection of botulinum toxin

- Indication of botulinum toxin injection in other muscle groups in the lower limb than triceps surae

- Swallowing impairment

- Ongoing AVK anticoagulation treatment with INR greater than 3 during one week before randomization.

- Ongoing treatment by aminoglycosides

- General anesthesia with injection of curare planned during the participation in the protocol

- Wearing a pacemaker

- History of ankle arthrodesis

- Other cons-indication for botulinum toxin injection: myasthenia gravis, pregnancy, lactation.

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Botulinum toxin injection


Locations

Country Name City State
France CHU Clermont-Ferrand Clermont-Ferrand

Sponsors (1)

Lead Sponsor Collaborator
University Hospital, Clermont-Ferrand

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Passive range of motion of ankle dorsiflexion (Tardieu scale) while keeping knee straight at inclusion
Primary Passive range of motion of ankle dorsiflexion (Tardieu scale) while keeping knee straight at day 1 (first injection)
Primary Passive range of motion of ankle dorsiflexion (Tardieu scale) while keeping knee straight at day 60
Primary Passive range of motion of ankle dorsiflexion (Tardieu scale) while keeping knee straight at day 120 (second injection)
Primary Passive range of motion of ankle dorsiflexion (Tardieu scale) while keeping knee straight at day 150
Secondary Tardieu scale: quality of muscle reaction at slow speed and fast speed at Inclusion, D1, D60, D120 and D150
Secondary Angle of apparition of the muscle reaction at slow speed and fast speed at Inclusion, D1, D60, D120 and D150
Secondary Spasticity of the triceps surae on the modified Ashworth scale at Inclusion, D1, D60, D120 and D150
Secondary Walking speed at Inclusion, D1, D60, D120 and D150
Secondary Extent of pain at the injection site by visual analogue scale at D1, D120
Secondary Duration of tracking and injection at D1, D120
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