- ICH GCP
- Registre américain des essais cliniques
- Essai clinique 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
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
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.
Type d'étude
Inscription (Estimé)
Phase
- Phase 2
Contacts et emplacements
Coordonnées de l'étude
- Nom: Sabine Coppieters, MD
- Numéro de téléphone: 857-350-4834
- E-mail: clinicaltrials@argenx.com
Lieux d'étude
-
-
Florida
-
Miami, Florida, États-Unis, 33176-2148
- Recrutement
- Visionary Investigators Network
-
Contact:
- Andrew Lerman, MD
- Numéro de téléphone: 786-655-8010
- E-mail: alerman@fcneurology.net
-
-
New York
-
Amherst, New York, États-Unis, 14226
- Recrutement
- Dent Neurologic Institute - Amherst
-
Contact:
- Luisa Rojas Estupinan, MD
- Numéro de téléphone: 716-250-2000
- E-mail: lrojas@dentinstitute.com
-
-
Tennessee
-
Chattanooga, Tennessee, États-Unis, 37403-2136
- Recrutement
- Erlanger Health System
-
Contact:
- Joshua Alpers, MD
- Numéro de téléphone: 423-778-3900
- E-mail: joshua.alpers@erlanger.org
-
-
Texas
-
Austin, Texas, États-Unis, 78759-8402
- Actif, ne recrute pas
- National Neuromuscular Research Institute
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
- Adulte
- Adulte plus âgé
Accepte les volontaires sains
La description
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.
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Quadruple
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: Empasiprubart IV
Participants receive empasiprubart IV in the DBTP
|
Intravenous infusions of empasiprubart
|
|
Comparateur placebo: Placebo IV
Participants receive placebo IV in the DBTP
|
Intravenous infusions of placebo
|
|
Autre: 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)
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Délai |
|---|---|
|
Incidence of adverse events and serious adverse events in the DBTP
Délai: Up to 12 weeks
|
Up to 12 weeks
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
MG-ADL total score change from baseline at week 12
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
|
Collaborateurs et enquêteurs
Parrainer
Publications et liens utiles
Liens utiles
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude (Réel)
Achèvement primaire (Estimé)
Achèvement de l'étude (Estimé)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Réel)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Maladies du système nerveux
- Tumeurs par site
- Tumeurs
- Maladies neuromusculaires
- Maladies auto-immunes
- Maladies du système immunitaire
- Maladies auto-immunes du système nerveux
- Maladies neurodégénératives
- Syndromes paranéoplasiques, système nerveux
- Tumeurs du système nerveux
- Syndromes paranéoplasiques
- Maladies de la jonction neuromusculaire
- Myasthénie grave
Autres numéros d'identification d'étude
- ARGX-999-2-MG-20002
- 2025 (Subvention/contrat des NIH des États-Unis: Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
- 2025-522939-33-00 (Ctis)
Plan pour les données individuelles des participants (IPD)
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Informations sur les médicaments et les dispositifs, documents d'étude
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