Evaluation of the Effect of Botulinum Toxin on Resting Tremor of the Refractory Upper Limb in Parkinsonians, Cross-over Study, Double Blind and Placebo-controlled (TOX PARK)
Visão geral do estudo
Status
Status
Condições
Condições
Intervenção / Tratamento
Intervenção / Tratamento
Descrição detalhada
Tipo de estudo
Tipo de estudo
Inscrição (Estimado)
Inscrição
Estágio
Estágio
- Fase 3
Contactos e Locais
Contato de estudo
Contato de estudo
- Nome: Clémence Leung, MD
- Número de telefone: +33 05 61 77 61 76
- E-mail: leung.c@chu-toulouse.fr
Locais de estudo
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Nîmes, França, 30 029
- Nîmes University Hospital
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Contato:
- Giovanni Castelnovo, MD
- Número de telefone: +33 04 66 68 32 63
- E-mail: giovanni.castelnovo@chu-nimes.fr
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Investigador principal:
- Giovanni Castelnovo, MD
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Toulouse, França, 31 059
- Pierre Paul Riquet Hospital - Toulouse University Hospital
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Contato:
- Clémence Leung, MD
- Número de telefone: +33 05 61 77 61 76
- E-mail: leung.c@chu-toulouse.fr
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Investigador principal:
- Clémence Leung, MD
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Critérios de participação
Critérios de elegibilidade
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Patients with PD defined according to UKPDSBB criteria;
- Men and women aged between 40 and 80 years;
- Patients with troublesome rest tremor assessed by the CGI-S scale ≥ 3 and persistent despite the initiation of ≥ two anti-parkinsonian treatments (levodopa, dopaminergic agonist, anticholinergic), which defines drug-resistant parkinsonian tremor;
- Patients naïve to botulinum toxin treatment;
- Patients whose antiparkinsonian treatment has been stable for at least 4 weeks prior to inclusion and for the duration of the study;
- Person affiliated with or beneficiary of a social security scheme;
- Free, informed, and written consent signed by the participant and the investigator (no later than the day of inclusion and before any examination required by the research).
Exclusion Criteria:
- Patients with tremors related to a pathology other than PD;
- Patients with atypical parkinsonian syndrome;
- Patients treated with drugs which have the adverse effect of causing the appearance or aggravation of tremors: lithium, sodium valproate, levetiracetam, benzodiazepines, corticosteroids, thyroid hormones, ciclosporin, alcohol, tricyclic antidepressants, theophillyne, terbutaline, antipsychotics (excluding clozapine) ;
- Patients with hypersensitivity to the active substance or to one of the excipients (human albumin, lactulose);
- patients with atrophy of the target muscle
- patients with a urinary tract infection at the time of treatment if the patient suffers from urinary incontinence due to neurological detrusor overactivity
- patients with a history of swallowing or respiratory disorders;
- patients with marked clinical or subclinical neuromuscular transmission deficits (e.g., myasthenia gravis);
- patients with fixed contractures Pregnant or breastfeeding women;
- Women of childbearing age without effective contraception;
- Patients under legal guardianship, tutorship, or curatorship.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição cruzada
- Mascaramento: Dobro
Número de braços
Armas e Intervenções
Grupo de Participantes / BraçoGrupo de Participantes / Braço |
Intervenção / TratamentoIntervenção / Tratamento |
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Experimental: Botulinum toxin followed by placebo arm
In this cross-over study, the patient will be his or her own control.
The patient will receive both treatments at 6 months apart: DYSPORT followed by the placebo (the order of injections has been randomly assigned).
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Both treatments, first DYSPORT 500UI for 6 months then placebo, also for 6 months, will be administered intramuscularly using the same schedule and procedures thus allowing the blind to be maintained.
The two injections will be carried at 6 months apart: the drug will be injected intramuscularly, into the muscles identified as responsible for the tremor, by an investigator specialized in carrying out injections.
The doses injected will depend on the severity of the tremor and the number of muscles injected, which is conditioned by the tremor phenotype.
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Experimental: Placebo followed by botulinum toxin arm
In this cross-over study, the patient will be his or her own control.
The patient will receive both treatments at 6 months apart: placebo followed by DYSPORT (the order of injections has been randomly assigned).
|
Both treatments, first placebo for 6 months then DYSPORT 500UI, also for 6 months, will be administered intramuscularly using the same schedule and procedures thus allowing the blind to be maintained.
The two injections will be carried at 6 months apart: the drug will be injected intramuscularly, into the muscles identified as responsible for the tremor, by an investigator specialized in carrying out injections.
The doses injected will depend on the severity of the tremor and the number of muscles injected, which is conditioned by the tremor phenotype.
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O que o estudo está medindo?
Medidas de resultados primários
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
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The effect of botulinum toxin on the resting tremor of the upper limb refractory to treatments
Prazo: 7,5 months
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It will be assessed by the PGI-C (Patient Global Impression-Change) score completed by the patient six weeks after injection and compared between treatments.
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7,5 months
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Medidas de resultados secundários
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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The effect of botulinum toxin on the resting tremor: evolution evaluated by the investigator
Prazo: 7,5 months
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It will be assessed by the CGI-C (Clinician Global Impression-Change) investigator-level change score, six weeks after injection.
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7,5 months
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The effect of botulinum toxin on the resting tremor: severity evaluated by the investigator
Prazo: 7,5 months
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It will be assessed by the delta of severity scores at the CGI-S (Clinician Global Impression-Severity) investigator level between injection and six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the resting tremor: amplitude evaluated by the investigator
Prazo: 7,5 months
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It will be assessed by the delta of the item score 3.17 (amplitude) at the MDS-UPDRS III investigator level between injection and six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the resting tremor: patient-assessed severity
Prazo: 7,5 months
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It will be assessed by the delta of severity scores at the patient scale PGI-S (Patient Global Impression-Severity) between injection and six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the postural tremor: evolution evaluated by the investigator
Prazo: 7,5 months
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It will be assessed by the change score at the CGI-C investigator scale, at six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the postural tremor: severity evaluated by the investigator
Prazo: 7,5 months
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It will be assessed by the delta of severity scores at the CGI-S investigator level between injection and six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the postural tremor: amplitude evaluated by the investigator
Prazo: 7,5 months
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It will be assessed by the delta of item 3.21 (amplitude) at the MDS-UPDRS III investigator level between injection and six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the postural tremor: patient-assessed change
Prazo: 7,5 months
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It will be assessed by the PGI-C scale score completed by the patient six weeks after injection and compared between groups.
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7,5 months
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The effect of botulinum toxin on the postural tremor: patient-assessed severity
Prazo: 7,5 months
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It will be assessed by the delta of severity scores on the PGI-S (Patient Global Impression-Severity) scale completed by the patient between the injection and six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the Parkinsonian tremor (at rest and postural): duration
Prazo: 12 months
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It will be assessed by the proportion of time the patient has a tremor, measured using an actimeter for 7 days prior to the assessment visit.
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12 months
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The effect of botulinum toxin on the Parkinsonian tremor (at rest and postural): amplitude
Prazo: 7,5 months
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It will be assessed by the mean angular amplitude measured using motion sensors placed on the hand and arm at six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the Parkinsonian tremor (at rest and postural): frequency
Prazo: 7,5 months
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It will be assessed by the mean frequency in Hertz (Hz) measured using motion sensors placed on the hand and arm at six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the patient's experience: life quality
Prazo: 7,5 months
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It will be assessed by the delta of the patient's quality of life score on the PDQ-39 self-administered questionnaire between injection and six weeks post-injection.
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7,5 months
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The effect of botulinum toxin on the patient's experience: daily life activities
Prazo: 7,5 months
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It will be assessed by the delta of the daily life activities score by the MDS-UPDRS scale, parts one and two between injection and six weeks post-injection.
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7,5 months
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The safety of use for botulinum toxin: muscle weakness (1)
Prazo: 7,5 months
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It will be assessed by the delta of the measurement in Newton of the manual dynamometer, for the treated hand, between injection and six weeks after injection.
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7,5 months
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The safety of use for botulinum toxin: muscle weakness (2)
Prazo: 7,5 months
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It will be assessed by the delta of the severity scores for muscle weakness in the treated hand, on the PGI-S (Patient Global Impression Severity) scale, completed by the patient between the injection and six weeks after the injection.
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7,5 months
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The safety of use for botulinum toxin: adverse events
Prazo: 12 months
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It will be assessed by all the adverse events collected during the study.
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12 months
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Outras medidas de resultado
Outras medidas de resultado
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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The factors associated with good response to botulinum toxin treatment
Prazo: 12 months
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The correct response to treatment will be determined from the scores of the PGI-S patient scale on the severity of the tremor and on the severity of the muscle weakness.
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12 months
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Investigadores
Investigadores
- Investigador principal: Clémence Leung, MD, University Hospital, Toulouse
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Estimado)
Início do estudo
Conclusão Primária (Estimado)
Conclusão Primária
Conclusão do estudo (Estimado)
Conclusão do estudo
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Primeira postagem
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última Atualização Postada
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
Termos MeSH relevantes adicionais
Outros números de identificação do estudo
Outros números de identificação do estudo
- RC31/25/0444
- PHRC 24-79 (Número de outro subsídio/financiamento: French Ministry of Health)
- 2026-525862-23-00 (Outro identificador: ID-RCB)
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