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A PHASE 2, RANDOMIZED, BLINDED, PLACEBOCONTROLLED, STUDY TO EVALUATE SAFETY, TOLERABILITY, PHARMACOMETRICS, AND EFFICACY OF DNTH103 IN ADULTS WITH GENERALIZED MYASTHENIA GRAVIS (MAGIC)

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-512865-15-00
Acronym
DNTH103-MG-201
Enrollment
54
Registered
2024-07-22
Start date
2024-09-03
Completion date
Unknown
Last updated
2025-10-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Generalized Myasthenia Gravis

Brief summary

Safety and tolerability of DNTH103 up to Week 13: Incidence of TEAEs and treatment-emergent SAEs up to Week 13 (end of the RCT period)

Detailed description

Efficacy: Change from baseline to Week 13 in MG-ADL scale score, Efficacy: Change from baseline to Week 13 in Quantitative Myasthenia Gravis (QMG) scale score, Efficacy: Change from baseline to Week 13 in Myasthenia Gravis Composite (MGC) scale score, Pharmacokinetics/Pharmacodynamics: Serum concentrations and PK parameters, including Cmax and Cmin, Pharmacokinetics/Pharmacodynamics: PD parameters (eg, CH50 [complement hemolysis 50%]) in serum ex vivo, Immunogenicity: Incidence and titer of antidrug antibodies against DNTH103levels against DNTH103, Safety and tolerability over 52 weeks in the OLE: Incidence of TEAEs and treatment-emergent SAEs up to Week 52 in the OLE

Interventions

Sponsors

Dianthus Therapeutics Inc.
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Safety and tolerability of DNTH103 up to Week 13: Incidence of TEAEs and treatment-emergent SAEs up to Week 13 (end of the RCT period)

Secondary

MeasureTime frame
Efficacy: Change from baseline to Week 13 in MG-ADL scale score, Efficacy: Change from baseline to Week 13 in Quantitative Myasthenia Gravis (QMG) scale score, Efficacy: Change from baseline to Week 13 in Myasthenia Gravis Composite (MGC) scale score, Pharmacokinetics/Pharmacodynamics: Serum concentrations and PK parameters, including Cmax and Cmin, Pharmacokinetics/Pharmacodynamics: PD parameters (eg, CH50 [complement hemolysis 50%]) in serum ex vivo, Immunogenicity: Incidence and titer of antidrug antibodies against DNTH103levels against DNTH103, Safety and tolerability over 52 weeks in the OLE: Incidence of TEAEs and treatment-emergent SAEs up to Week 52 in the OLE

Countries

Czechia, Denmark, France, Italy, Netherlands, Norway, Poland, Spain, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026