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A Phase 1b/2 Open-label Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Exploratory Efficacy Following Fosigotifator Administration in Adult and Pediatric Subjects with Vanishing White Matter Disease

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-505704-30-00
Acronym
M23-523
Enrollment
5
Registered
2024-02-19
Start date
2024-03-22
Completion date
Unknown
Last updated
2025-06-11

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

Conditions

Vanishing White Matter disease

Brief summary

AEs and SAEs during the Safety Evaluation Period, Vital signs, ECGs, clinical laboratory tests, and suicidality assessments during the Safety Evaluation Period, Plasma concentrations of A-1684909 at pre-specified visits from Baseline up to Week 96 for all cohorts, CSF concentrations of A-1684909 at Week 12, Week 48, and Week 96 for all cohorts, Plasma PK parameters of A-1684909 following dosing at V4 (Study Day 14) for Cohorts 1 and 1b: Cmax; Tmax; AUC0-24h; Ctrough; and t1/2, functional

Detailed description

AEs and SAEs at last visit (Week 197), Vital signs, ECGs, clinical laboratory tests and suicudality up to last vist (Week 197)

Interventions

Sponsors

AbbVie Deutschland GmbH & Co. KG
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to No maximum

Design outcomes

Primary

MeasureTime frame
AEs and SAEs during the Safety Evaluation Period, Vital signs, ECGs, clinical laboratory tests, and suicidality assessments during the Safety Evaluation Period, Plasma concentrations of A-1684909 at pre-specified visits from Baseline up to Week 96 for all cohorts, CSF concentrations of A-1684909 at Week 12, Week 48, and Week 96 for all cohorts, Plasma PK parameters of A-1684909 following dosing at V4 (Study Day 14) for Cohorts 1 and 1b: Cmax; Tmax; AUC0-24h; Ctrough; and t1/2, functional

Secondary

MeasureTime frame
AEs and SAEs at last visit (Week 197), Vital signs, ECGs, clinical laboratory tests and suicudality up to last vist (Week 197)

Countries

Netherlands

Outcome results

None listed

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