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- Ensaio Clínico NCT07673627
ADAPT Forward 2 - ISA2 - a Study to Evaluate the Safety, Tolerability and Efficacy of Empasiprubart IV Monotherapy in Participants With AChR-Ab Seropositive Generalized Myasthenia Gravis (ADAPT Forward2)
ISA2 to Master Protocol ARGX-999-2-MG-2000 - an Exploratory, Phase 2a, Randomized, Double-Blinded, Placebo-Controlled Study to Evaluate the Safety, Tolerability, and Efficacy of Empasiprubart IV Monotherapy in Participants With AChR-Ab Seropositive Generalized Myasthenia Gravis
This study is part of the ADAPT Forward platform study (NCT07294170). ADAPT Forward is a platform study with the aim to look at how safe different drugs are and how well they work for people with myasthenia gravis. The goal is to find the best therapeutic approach to reduce patients' side effects and improve their quality of life.
The aim of this ISA2 is to investigate the effects of empasiprubart in participants with AChR-Ab seropositive generalized myasthenia gravis (gMG).
The ADAPT Forward master protocol is registered on https://clinicaltrials.gov/study/NCT07294170
More information can be found here: https://clinicaltrials.argenx.com/adaptforward2
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
Once the master protocol and ISA2 screening periods are completed, eligible participants will be randomized to receive empasiprubart IV or placebo in the double-blinded treatment period (DBTP). All participants will then receive open-label efgartigimod PH20 SC PFS in the safety follow-up period.
The study duration for each participant is approximately up to 45 weeks.
Tipo de estudo
Inscrição (Estimado)
Estágio
- Fase 2
Contactos e Locais
Contato de estudo
- Nome: Sabine Coppieters, MD
- Número de telefone: 857-350-4834
- E-mail: clinicaltrials@argenx.com
Locais de estudo
-
-
Florida
-
Miami, Florida, Estados Unidos, 33176-2148
- Recrutamento
- Visionary Investigators Network
-
Contato:
- Andrew Lerman, MD
- Número de telefone: 786-655-8010
- E-mail: alerman@fcneurology.net
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-
New York
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Amherst, New York, Estados Unidos, 14226
- Recrutamento
- Dent Neurologic Institute - Amherst
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Contato:
- Luisa Rojas Estupinan, MD
- Número de telefone: 716-250-2000
- E-mail: lrojas@dentinstitute.com
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Tennessee
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Chattanooga, Tennessee, Estados Unidos, 37403-2136
- Recrutamento
- Erlanger Health System
-
Contato:
- Joshua Alpers, MD
- Número de telefone: 423-778-3900
- E-mail: joshua.alpers@erlanger.org
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-
Texas
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Austin, Texas, Estados Unidos, 78759-8402
- Ativo, não recrutando
- National Neuromuscular Research Institute
-
-
Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
- Adulto
- Adulto mais velho
Aceita Voluntários Saudáveis
Descrição
Inclusion Criteria:
- Is seropositive for anti-acetylcholine receptor antibodies (AChR-Ab).
- Has confirmed diagnosis of gMG and is Myasthenia Gravis Foundation of America (MGFA) Class II, III, IVa, or IVb.
- Has documented immunization against encapsulated bacterial pathogens (Neisseria meningitidis and Streptococcus pneumoniae) within 5 years before ISA screening or will complete immunization at least 14 days before the first IMP administration.
Exclusion Criteria:
- Clinical diagnosis of systemic lupus erythematosus (SLE).
- Is receiving concurrent complement inhibitors (eg, eculizumab, zilucoplan, ravulizumab, or others). Participants who received zilucoplan or eculizumab >2 months or ravulizumab >6 months before baseline are allowed to participate.
- Has received an FcRn antagonist, including efgartigimod, within 4 weeks before baseline.
- Had prior empasiprubart exposure.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Quadruplicar
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
|
Experimental: Empasiprubart IV
Participants receive empasiprubart IV in the DBTP
|
Intravenous infusions of empasiprubart
|
|
Comparador de Placebo: Placebo IV
Participants receive placebo IV in the DBTP
|
Intravenous infusions of placebo
|
|
Outro: Efgartigimod PH20 SC PFS
Participants receive open-label efgartigimod PH20 SC PFS in the safety follow-up period
|
Subcutaneous administration of efgartigimod PH20 via pre-filled syringe (PFS)
|
O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Prazo |
|---|---|
|
Incidence of adverse events and serious adverse events in the DBTP
Prazo: Up to 12 weeks
|
Up to 12 weeks
|
Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
|
MG-ADL total score change from baseline at week 12
Prazo: Up to 12 weeks
|
The Myasthenia Gravis Activities of Daily Living (MG-ADL) scale is an 8-item instrument used to assess MG symptoms and their effects on daily activities.
The total score ranges from 0 (normal symptoms) to 24 (most severe symptoms)
|
Up to 12 weeks
|
|
QMG total score change from baseline at week 12
Prazo: Up to 12 weeks
|
The Quantitative myasthenia gravis (QMG) includes 13 items that measure endurance or fatigability and accounts for fluctuations in disease state.
The total score ranges from 0 (no disease severity) to 39 (highest disease severity)
|
Up to 12 weeks
|
|
MG-ADL total score change from baseline over time up to week 12
Prazo: Up to 12 weeks
|
The Myasthenia Gravis Activities of Daily Living (MG- ADL) scale is an 8-item instrument used to assess MG symptoms and their effects on daily activities.
The total score ranges from 0 (normal symptoms) to 24 (most severe symptoms)
|
Up to 12 weeks
|
|
QMG total score change from baseline over time up to week 12
Prazo: Up to 12 weeks
|
The Quantitative myasthenia gravis (QMG) includes 13 items that measure endurance or fatigability and accounts for fluctuations in disease state.
The total score ranges from 0 (no disease severity) to 39 (highest disease severity)
|
Up to 12 weeks
|
|
Proportion of participants reaching MSE at any point by week 12
Prazo: Up to 12 weeks
|
MSE: Minimal symptom expression
|
Up to 12 weeks
|
|
Proportion of participants who have ≥3-point reduction in MG-ADL at week 12
Prazo: Up to 12 weeks
|
The Myasthenia Gravis Activities of Daily Living (MG- ADL) scale is an 8-item instrument used to assess MG symptoms and their effects on daily activities.
The total score ranges from 0 (normal symptoms) to 24 (most severe symptoms).
|
Up to 12 weeks
|
|
Proportion of participants who have ≥5-point reduction in QMG at week 12
Prazo: Up to 12 weeks
|
The Quantitative myasthenia gravis (QMG) includes 13 items that measure endurance or fatigability and accounts for fluctuations in disease state.
The total score ranges from 0 (no disease severity) to 39 (highest disease severity).
|
Up to 12 weeks
|
|
Proportion of participants who have a positive PASS at week 12
Prazo: Up to 12 weeks
|
PASS: Patient acceptable symptom state
|
Up to 12 weeks
|
|
Proportion of participants who have a 50% MG-ADL total score improvement at week 12
Prazo: Up to 12 weeks
|
The Myasthenia Gravis Activities of Daily Living (MG-ADL) scale is an 8-item instrument used to assess MG symptoms and their effects on daily activities.
The total score ranges from 0 (normal symptoms) to 24 (most severe symptoms).
|
Up to 12 weeks
|
Colaboradores e Investigadores
Patrocinador
Publicações e links úteis
Links úteis
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo (Real)
Conclusão Primária (Estimado)
Conclusão do estudo (Estimado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Real)
Atualizações de registro de estudo
Última Atualização Postada (Real)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Termos MeSH relevantes adicionais
- Doenças do Sistema Nervoso
- Neoplasias por local
- Neoplasias
- Doenças Neuromusculares
- Doenças autoimunes
- Doenças do sistema imunológico
- Doenças Autoimunes do Sistema Nervoso
- Doenças Neurodegenerativas
- Síndromes Paraneoplásicas do Sistema Nervoso
- Neoplasias do Sistema Nervoso
- Síndromes Paraneoplásicas
- Doenças da Junção Neuromuscular
- Miastenia grave
Outros números de identificação do estudo
- ARGX-999-2-MG-20002
- 2025 (Concessão/Contrato do NIH dos EUA: Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
- 2025-522939-33-00 (Ctis)
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