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Safety and Efficacy Study of Sivelestat in Neuromyelitis Optica Spectrum Disorder (SIVAR-NMOSD)

27 de julho de 2026 atualizado por: Mitsuru Watanabe, Kyushu University

A Phase I/IIa Investigator-Initiated Clinical Trial to Evaluate the Safety and Efficacy of Sivelestat in Patients With Acute Relapse of Neuromyelitis Optica Spectrum Disorder

The primary objective of this study is to evaluate the safety and tolerability of sivelestat sodium hydrate administered in combination with standard steroid pulse therapy in patients experiencing an acute NMOSD attack. Safety assessments will include adverse events, laboratory parameters, vital signs, and other clinically relevant findings. In addition, the study will explore whether the addition of sivelestat sodium hydrate to standard steroid pulse therapy improves neurological outcomes in patients with acute NMOSD.

Participants will receive intravenous sivelestat sodium hydrate at a dose of 4.8 mg/kg/day administered as a continuous infusion (0.2 mg/kg/hour) for 5 consecutive days, receive steroid pulse therapy according to the study protocol, and be followed for 28 days after treatment initiation for safety and efficacy evaluations.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Intervenção / Tratamento

Tipo de estudo

Intervencional

Inscrição (Estimado)

7

Estágio

  • Fase 2
  • Fase 1

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

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

Descrição

Inclusion Criteria:

  1. Patients diagnosed with anti-AQP4 antibody-positive NMOSD according to the international diagnostic criteria for NMOSD (Wingerchuk, Neurology 2015).
  2. Patients experiencing a relapse including any of the following, with the relapse occurring within 14 days of obtaining consent:

    i. Unilateral or bilateral optic neuritis ii. Myelitis

  3. Patients whose FS domain has worsened by at least 1 point due to relapse.
  4. Patients with one or more relapse lesions identified on MRI (however, if the relapse is considered to have occurred in the same location as an existing MRI lesion neurologically, identification of a new relapse lesion is not required).
  5. Patients aged 18 years or older at the time of obtaining consent.
  6. Female patients of childbearing potential who agree to use appropriate contraception from the time of obtaining consent until 180 days after the end of investigational product administration.
  7. Male patients who agree to use appropriate contraception until 90 days after the end of investigational product administration.
  8. Patients who can provide written informed consent.

Exclusion Criteria:

  1. Patients with multi-organ dysfunction involving 4 or more organs.
  2. Patients with severe chronic respiratory disease.
  3. Patients with autoimmune diseases other than NMOSD that are expected to require additional treatment during the study period.
  4. Patients with active systemic bacterial, viral, or fungal infections.
  5. Patients who have received either or both of the following prior treatments after an NMOSD relapse:

    i. Two or more courses of steroid pulse therapy ii. Plasmapheresis iii. High-dose immunoglobulin therapy

  6. Patients with severe hepatic dysfunction.
  7. Patients with alcohol dependence, drug dependence, or psychiatric disorders that would interfere with study participation.
  8. Patients who have received other investigational drugs within 3 months prior to obtaining consent.
  9. Pregnant women, women suspected of being pregnant, or breastfeeding women.
  10. Patients with allergies to the investigational product or concomitant medications.
  11. Patients with severe allergies or a history of severe allergies.
  12. Patients with suicidal tendencies meeting any of the following criteria:

    i. Within 1 month prior to the screening assessment, there was suicidal behavior or ideation corresponding to "Yes" for Item 4 (Active suicidal ideation -some intent to act, but no specific plan) or Item 5 (Active suicidal ideation -specific plan and intent) of the Columbia-Suicide Severity Rating Scale (C-SSRS). (For subjects who only met Items 1-3, inclusion may be permitted at the discretion of the principal investigator or sub-investigator.) ii. Any suicidal behavior based on Item 6 of the C-SSRS occurred within the past 3 months.

  13. Other patients judged inappropriate by the principal investigator or sub-investigator.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: N / D
  • Modelo Intervencional: Atribuição de grupo único
  • Mascaramento: Nenhum (rótulo aberto)

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Sivelestat
Sivelestat sodium hydrate is administered intravenously at a dose of 4.8 mg/kg/day as a continuous infusion (0.2 mg/kg/hour) for 5 consecutive days in combination with steroid pulse therapy in patients with acute NMOSD attacks.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Prazo
Incidência de eventos adversos
Prazo: 4 semanas
4 semanas

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Change from baseline in body temperature at 3 hours, Day 2, Day 3, Day 4, Day 5, and Day 6 after the start of investigational product administration.
Prazo: 6 days
6 days
Change from baseline in blood pressure at 3 hours, Day 2, Day 3, Day 4, Day 5, and Day 6 after the start of investigational product administration.
Prazo: 6 days
6 days
Change from baseline in pulse rate at 3 hours, Day 2, Day 3, Day 4, Day 5, and Day 6 after the start of investigational product administration.
Prazo: 6 days
6 days
Change from baseline in percutaneous arterial oxygen saturation at 3 hours, Day 2, Day 3, Day 4, Day 5, and Day 6 after the start of investigational product administration.
Prazo: 6 days
6 days
Change from baseline in Expanded Disability Status Scale (EDSS) score at 4 weeks (Day 28).
Prazo: 4 weeks
The Expanded Disability Status Scale (EDSS) ranges from 0 to 10. Higher scores indicate greater neurological disability and worse clinical status.
4 weeks
Proportion of cases where Expanded Disability Status Scale (EDSS) score improved by 1 point or more from baseline at 4 weeks (Day 28).
Prazo: 4 weeks
The Expanded Disability Status Scale (EDSS) ranges from 0 to 10. Higher scores indicate greater neurological disability and worse clinical status.
4 weeks
Change from baseline in Functional System (FS) domain scores at 4 weeks
Prazo: 4 weeks
Functional System (FS) scores are neurological disability scores that contribute to the Expanded Disability Status Scale (EDSS). Functional systems assessed include visual, brainstem, pyramidal, cerebellar, sensory, bowel and bladder, and cerebral functions. Individual FS scores generally range from 0 (normal function) to 5 or 6 (maximal impairment), depending on the functional system assessed. Higher scores indicate greater neurological impairment and worse clinical status.
4 weeks
Change from baseline in Opticospinal Impairment Scale (OSIS) score at 4 weeks (Day 28).
Prazo: 4 weeks
The Opticospinal Impairment Scale (OSIS) is a disability scale for neuromyelitis optica spectrum disorder that assesses visual acuity, motor function, sensory function, and sphincter function. Total scores range from 0 to 25, with higher scores indicating greater neurological impairment and worse clinical status.
4 weeks
Proportion of participants with recovery to pre-relapse neurological disability status at 4 weeks (Day 28).
Prazo: 4 weeks
Recovery to pre-relapse neurological disability status is defined as a return of the Expanded Disability Status Scale (EDSS; range 0-10, higher scores indicate greater disability) and the Opticospinal Impairment Scale (OSIS; range 0-25, higher scores indicate greater neurological impairment) to their respective pre-relapse scores.
4 weeks
Change from baseline in best-corrected visual acuity at 4 weeks (Day 28)
Prazo: 4 weeks
4 weeks
Change from baseline in critical flicker fusion frequency at 4 weeks (Day 28).
Prazo: 4 weeks
4 weeks
Change from baseline in retinal nerve fiber layer and ganglion cell-inner plexiform layer thickness measured by optical coherence tomography (OCT) at 4 weeks (Day 28).
Prazo: 4 weeks
4 weeks
Proportion of cases with gadolinium-enhancing lesions on MRI at 4 weeks.
Prazo: 4 weeks
4 weeks
Proportion of cases requiring a second course of steroid pulse therapy, plasmapheresis, or high-dose immunoglobulin therapy.
Prazo: 4 weeks
4 weeks

Colaboradores e Investigadores

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

Patrocinador

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 (Estimado)

17 de agosto de 2026

Conclusão Primária (Estimado)

31 de janeiro de 2028

Conclusão do estudo (Estimado)

31 de maio de 2028

Datas de inscrição no estudo

Enviado pela primeira vez

17 de julho de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

27 de julho de 2026

Primeira postagem (Real)

31 de julho de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

31 de julho de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

27 de julho de 2026

Última verificação

1 de julho de 2026

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Outros números de identificação do estudo

  • CTR542-01

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

NÃO

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .