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
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Fase
Fase
- Fase 2
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Sabine Coppieters, MD
- Telefonnummer: 857-350-4834
- E-mail: clinicaltrials@argenx.com
Studiesteder
-
-
Florida
-
Miami, Florida, Forenede Stater, 33176-2148
- Rekruttering
- Visionary Investigators Network
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Kontakt:
- Andrew Lerman, MD
- Telefonnummer: 786-655-8010
- E-mail: alerman@fcneurology.net
-
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New York
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Amherst, New York, Forenede Stater, 14226
- Rekruttering
- Dent Neurologic Institute - Amherst
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Kontakt:
- Luisa Rojas Estupinan, MD
- Telefonnummer: 716-250-2000
- E-mail: lrojas@dentinstitute.com
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Tennessee
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Chattanooga, Tennessee, Forenede Stater, 37403-2136
- Rekruttering
- Erlanger Health System
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Kontakt:
- Joshua Alpers, MD
- Telefonnummer: 423-778-3900
- E-mail: joshua.alpers@erlanger.org
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Texas
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Austin, Texas, Forenede Stater, 78759-8402
- Aktiv, ikke rekrutterende
- National Neuromuscular Research Institute
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Beskrivelse
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.
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Firedobbelt
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: Empasiprubart IV
Participants receive empasiprubart IV in the DBTP
|
Intravenous infusions of empasiprubart
|
|
Placebo komparator: Placebo IV
Participants receive placebo IV in the DBTP
|
Intravenous infusions of placebo
|
|
Andet: 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)
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Incidence of adverse events and serious adverse events in the DBTP
Tidsramme: Up to 12 weeks
|
Up to 12 weeks
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
MG-ADL total score change from baseline at week 12
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Publikationer og nyttige links
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Sygdomme i nervesystemet
- Neoplasmer efter sted
- Neoplasmer
- Neuromuskulære sygdomme
- Autoimmune sygdomme
- Sygdomme i immunsystemet
- Autoimmune sygdomme i nervesystemet
- Neurodegenerative sygdomme
- Paraneoplastiske syndromer, nervesystemet
- Neoplasmer i nervesystemet
- Paraneoplastiske syndromer
- Neuromuskulære Junction-sygdomme
- Myasthenia gravis
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- ARGX-999-2-MG-20002
- 2025 (U.S. NIH-bevilling/kontrakt: Faculty of Social Sciences Scientific Grant at the University of Gdańsk)
- 2025-522939-33-00 (Ctis)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
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