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Exploration of the Association Between White Matter Lesion Burden and Dalfampridine Response in Insidious-Onset Vascular Parkinsonism (DAL-VaP)

28 de junho de 2026 atualizado por: Tang-Du Hospital

An Exploratory Cohort Study to Evaluate Whether White Matter Lesion Burden Correlates With Dalfampridine Response in Insidious-Onset Vascular Parkinsonism and Parkinson-Plus Syndromes

This single-center observational cohort study will be conducted at Tangdu Hospital, Fourth Military Medical University. Patients presenting parkinsonism and poor levodopa response will be enrolled, including insidious-onset vascular parkinsonism (VaP) and Parkinson-plus syndromes (PPS). Within each diagnostic subgroup, participants will receive either dalfampridine 10 mg twice daily for 4 weeks combined with conventional therapy, or conventional therapy alone. Change in Timed Up and Go (TUG) time, gait speed, balance, daily function, and quality of life metrics assessed from baseline to Week 4.

Visão geral do estudo

Status

Concluído

Condições

Parkinsonismo vascular

Descrição detalhada

Insidious-onset vascular parkinsonism (VaP) is characterized by typical clinical manifestations including gait impairment, postural instability, poor levodopa responsiveness, and diffuse cerebral white matter lesions (WMLs). Dalfampridine is an agent indicated to manage gait dysfunction among patients diagnosed with multiple sclerosis. This study will collect standardized gait and functional scale assessments in participants with insidious-onset VaP and participants with Parkinson-plus syndromes (PPS).

Single-center observational cohort study performed at Tangdu Hospital, Fourth Military Medical University, Xi'an, China. Parkinsonism and poor levodopa response will be divided into two diagnostic subgroups (VaP, PPS). Each subgroup will receive one of two treatment regimens: dalfampridine 10 mg twice daily for 4 weeks plus conventional therapy, or conventional therapy alone.

Change in Timed Up and Go (TUG) test time,10-meter walking speed, Tinetti scale score, ADL scale score, FES-I score, FOG-Q score, and SF-36 summary scores recorded at baseline and Week 4 among participants with VaP.

Baseline white matter lesion volume will be documented as a baseline clinical characteristic of all enrolled participants.

Tipo de estudo

Observacional

Inscrição (Real)

Contactos e Locais

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Locais de estudo

China
- Shaanxi
  - Xi'an, Shaanxi, China, 710038
    - Tangdu Hospital, Fourth Military Medical University

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

Adulto
Adulto mais velho

Aceita Voluntários Saudáveis

Não

Método de amostragem

Amostra Não Probabilística

População do estudo

Patients with insidious-onset vascular parkinsonism or Parkinson-plus syndromes, with gait impairment and poor levodopa response.

Descrição

Inclusion Criteria:

Age ≥ 18 years
Clinical diagnosis of insidious-onset vascular parkinsonism or Parkinson-plus syndromes
Gait, balance, or mobility impairment
Poor levodopa response (<10% improvement in UPDRS-III after levodopa challenge)
Ability to complete all study assessments

Exclusion Criteria:

Seizure disorder or epilepsy
Multiple sclerosis
Repeated traumatic brain injury
Encephalitis, brain tumor, or normal-pressure hydrocephalus
Severe peripheral neuropathy
Severe systemic illness or active infection
Other neurological/psychiatric conditions interfering with assessments

Plano de estudo

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Como o estudo é projetado?

Detalhes do projeto

Número de grupos/coortes

Coortes e Intervenções

Grupo / Coorte
VaP + Dalfampridine Patients with insidious-onset vascular parkinsonism treated with dalfampridine 10 mg twice daily plus conventional therapy for 4 weeks.
VaP + Conventional Therapy Patients with insidious-onset vascular parkinsonism treated with conventional therapy alone for 4 weeks.
PPS + Dalfampridine Patients with Parkinson-plus syndromes treated with dalfampridine 10 mg twice daily plus conventional therapy for 4 weeks.
PPS + Conventional Therapy Patients with Parkinson-plus syndromes treated with conventional therapy alone for 4 weeks.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado	Descrição da medida	Prazo
Change in Timed Up and Go (TUG) Time From Baseline to Week 4 Prazo: Baseline to Week 4	Change in the time taken to complete the Timed Up and Go (TUG) test from baseline to Week 4.	Baseline to Week 4

Medidas de resultados secundários

Medida de resultado	Descrição da medida	Prazo
Change in 10-Meter Walk Test Speed From Baseline to Week 4 Prazo: Baseline to Week 4	Change in speed during the 10-Meter Walk Test from baseline to Week 4.	Baseline to Week 4
Change in Tinetti Balance and Gait Scale Score From Baseline to Week 4 Prazo: Baseline to Week 4	Change in total score on the full Tinetti Balance and Gait Scale from baseline to Week 4. The scale ranges from 0 to 28; higher scores indicate superior balance and walking function.	Baseline to Week 4
Change in Activities of Daily Living (ADL) Scale Score From Baseline to Week 4 Prazo: Baseline to Week 4	Change in total score on the full Activities of Daily Living (ADL) Scale from baseline to Week 4. Scores range from 0 to 100; higher scores reflect better daily living performance.	Baseline to Week 4
Change in Falls Efficacy Scale-International (FES-I) Score From Baseline to Week 4 Prazo: Baseline to Week 4	Change in total score on the full Falls Efficacy Scale-International (FES-I) from baseline to Week 4. Scores range from 16 to 64; higher scores correspond to greater fear of falling.	Baseline to Week 4
Change in Freezing of Gait Questionnaire (FOG-Q) Score From Baseline to Week 4 Prazo: Baseline to Week 4	Change in total score on the full Freezing of Gait Questionnaire (FOG-Q) from baseline to Week 4. Scores range from 0 to 24; higher scores mean more severe gait freezing symptoms.	Baseline to Week 4
Change in SF-36 Physical and Mental Component Summary Scores From Baseline to Week 4 Prazo: Baseline to Week 4	Change in Physical Component Summary and Mental Component Summary scores on the full SF-36 Health Survey from baseline to Week 4. Each summary score ranges from 0 to 100; higher scores represent better physical or mental health status.	Baseline to Week 4

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Tang-Du Hospital

Investigadores

Investigador principal: Wei Zhang, MD, PhD, Tang-Du Hospital

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Real)

1 de agosto de 2023

Conclusão Primária (Real)

31 de dezembro de 2024

Conclusão do estudo (Real)

31 de janeiro de 2025

Datas de inscrição no estudo

Enviado pela primeira vez

8 de junho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

28 de junho de 2026

Primeira postagem (Real)

2 de julho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)