Evaluation of the decrease of the secretion of saliva in patients with amyotrophic lateral sclerosis by a local ultrasound-guided bilateral injection of botulinum toxin type A in parotids and submandibular glands. The investigators want to demonstrate 1 month after the injection, by a multicenter French randomized double blind study, an improvement of at least 25 % of the functional embarrassment due to saliva, estimated with a visual analogue scale, a decrease of the quantity of saliva and a decrease of the embarrassment for the main caregiver.
The patient will benefit from an ultrasound guided injection of botulinum toxin A (Botox®) or placebo (NaCl 0.9 %) and will be followed up in consultation at 4, 12, 16 (if reinjection) and 24 weeks. He will be contacted by telephone in 2 and in 8 weeks (percentage of decrease of functional embarrassment, percentage of decrease of salivary secretion rate). He can be able to benefit in the open label phase of a botulinum toxin type A injection at the 12-week follow up if he estimates that first injection was not effective or if the efficiency of the first injection began to become blurred. After the 6 months of the study, the patient will benefit again from the usual follow-up as advised by the French consensus conference in November, 2005.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
18
Local ultrasound-guided bilateral injection of botulinum toxin type A in parotid (35 UI/gland) and submandibular (15 UI/gland) glands.
A local ultrasound-guided bilateral injection of placebo (NaCl 0.9 %) in parotid (0.7 ml/gland) and submandibular (0.3 ml/gland) glands.
Département de Neurologie, Hôpital de l'Hôtel-Dieu, CHU d'Angers
Angers, France
Centre SLA, Groupement Hospitalier Est, Hôpital Neurologique Pierre Wertheimer, Hospices Civils de Lyon
Bron, France
Improvement of the functional embarrassment provoked by sialorrhea
Demonstrate after the injection of botulinum toxin type A an improvement of at least 25 % of the functional embarrassment provoked by sialorrhea in the ALS patient, evaluated with a horizontal visual analogue scale (VAS).
Time frame: 1 month after the injection
Decrease of the salivary secretion rate and a decrease of the embarrassment for the main caregiver
Demonstrate, one month after the injection of botulinum toxin type A, a decrease of the salivary secretion rate and a decrease of the embarrassment for the main caregiver by a horizontal visual analogue scale.
Time frame: 1 month after the injection
Improvement of the value of the hypersalivation item in ALSFRS-R scale
Demonstrate, one month after the injection of botulinum toxin type A, an improvement of the value of the hypersalivation item in ALSFRS-R scale.
Time frame: 1 month after the injection
Decrease of the score of severity and frequency of the drooling rating scale
Demonstrate, one month after the injection of botulinum toxin type A, a decrease of the score of severity and frequency of the drooling rating scale
Time frame: 1 month after the injection
Decrease of the cotton roll weight
Demonstrate, one month after the injection of botulinum toxin type A, a decrease of the cotton roll weight. Cotton rolls weight: production and quantity of saliva are verified by placing dental cotton rolls during 3 minutes in the mouth of the patient and by comparing the weight of rolls dry and soaked with saliva.
Time frame: 1 month after the injection
Decrease of the number of paper handkerchiefs used
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Service de Neurologie Vastel, Hôpital Côte de Nacre, CHU de Caen
Caen, France
Service de Neurologie, Hôpital Gabriel Montpied, CHU de Clermont-Ferrand
Clermont-Ferrand, France
Centre SLA, Service de Neurologie A et pathologies du mouvement, Hôpital Roger Salengro, CHU de Lille
Lille, France
Service de Neurologie, Hôpital Dupuytren, CHU de Limoges
Limoges, France
Service de Neurologie, Hôpital de la Timone, CHU de Marseille
Marseille, France
Service de Neurologie, Hôpital Central, CHU de Nancy
Nancy, France
Centre de Référence maladies Neuromusculaires, Service de Médecine Physique et Réadaptation, Hôpital de l'Archet 1, CHU de Nice
Nice, France
Fédération des Maladies du Système Nerveux, Groupement Hospitalier Pitié Salpêtrière, AP-HP
Paris, France
...and 3 more locations
Demonstrate, one month after the injection of botulinum toxin type A, a decrease of the number of paper handkerchiefs used. We ask the patient to count the number of handkerchiefs used a day.
Time frame: 1 month after the injection
Modification of the speech evaluation
Demonstrate, one month after the injection of botulinum toxin typeA, a modification of the speech evaluation (evaluation realized by speech evaluator)
Time frame: 1 month after the injection
Improvement of the quality of life
Demonstrate, one month after the injection of botulinum toxin type A, an improvement of the quality of life. Scale to estimate quality of life (ALSAQ-40), usually used with the patients affected by ALS
Time frame: 1 month after the injection
Description of patient cohort after the first injection
Describe cohort after the first injection: evolution of scores for every patient among Day0 and Month1, delay of appearance of the efficiency, the duration of effect of the treatment, the side effects, the modification of the consistency of the saliva and the possible necessity for re-injecting the patient at 3 months of follow-up.
Time frame: 6 months after the injection