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A Phase 2 Safety, Tolerability, and Proof-of-Concept Study of VGL101 in Patients With Adult-Onset Leukoencephalopathy With Axonal Spheroids and Pigmented Glia (ALSP)

Status
Completed
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-502505-15-00
Acronym
VGL101-01.201
Enrollment
7
Registered
2023-07-24
Start date
2023-11-09
Completion date
2025-06-04
Last updated
2025-01-28

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

Conditions

Leukoencephalopathy

Brief summary

Safety and tolerability, as assessed by the following: Nature and frequency of adverse events, serious adverse events, and discontinuations due to adverse events; Safety laboratory tests; Immunogenicity tests; Vital sign measurements; Electrocardiograms; Columbia-Suicide Severity Rating Scale (C-SSRS)

Detailed description

Secondary end pointT Change from Baseline to Week 24 and Week 52 in structural and volumetric magnetic resonance imaging (MRI)Change from Baseline to Week 24 in neurofilament light chain (NfL) in cerebrospinal fluid (CSF) and blood, Change from Baseline to Week 24 and Week 52 in neurofilament light chain (NfL) in cerebrospinal fluid (CSF) and blood, Change from Baseline to Week 24 and Week 52 in in soluble colony-stimulating factor 1 receptor (sCSF1R) in CSF, Correlations of Week 24 and Week 52 biomarker changes and clinical outcomes

Interventions

DRUGVGL101

Sponsors

Vigil Neuroscience Inc.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Safety and tolerability, as assessed by the following: Nature and frequency of adverse events, serious adverse events, and discontinuations due to adverse events; Safety laboratory tests; Immunogenicity tests; Vital sign measurements; Electrocardiograms; Columbia-Suicide Severity Rating Scale (C-SSRS)

Secondary

MeasureTime frame
Secondary end pointT Change from Baseline to Week 24 and Week 52 in structural and volumetric magnetic resonance imaging (MRI)Change from Baseline to Week 24 in neurofilament light chain (NfL) in cerebrospinal fluid (CSF) and blood, Change from Baseline to Week 24 and Week 52 in neurofilament light chain (NfL) in cerebrospinal fluid (CSF) and blood, Change from Baseline to Week 24 and Week 52 in in soluble colony-stimulating factor 1 receptor (sCSF1R) in CSF, Correlations of Week 24 and Week 52 biomarker changes and clinical outcomes

Countries

France, Germany, Netherlands

Outcome results

None listed

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