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An open-label, multi-center, phase I/II study to assess safety, disease progression, and cellular kinetics following YTB323 administration in participants with non-active Progressive Multiple Sclerosis (PMS)

Status
Not yet recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-514006-31-00
Acronym
CYTB323R12101
Enrollment
18
Registered
2025-04-22
Start date
Unknown
Completion date
Unknown
Last updated
2026-01-16

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

Conditions

Non-active Progressive Multiple Sclerosis (PMS)

Brief summary

Occurrence, severity and frequency of dose limiting toxicities (DLTs), Adverse Events (AEs) and change from baseline over 2 years in safety parameters including, but not limited to vital signs, laboratory, ECG, neurological status, and safety measures from brain and spinal cord MRIs.

Detailed description

Change from baseline for clinical measures of disability (includes EDSS, T25FW, 9HPT, SDMT)., YTB323 transgene expression levels by qPCR over time in blood; cellular kinetics parameters (Cmax, AUC, Tmax, Clast, Tlast)., Safety data from each dose level., Pre-existing and treatment-induced immunogenicity (humoral, anti-YTB323 antibody; and cellular, presence of CAR19 specific CD4 and CD8 T cells measuring interferon gamma production).

Interventions

DRUGYTB323
DRUGCYCLOPHOSPHAMIDE
DRUGFLUDARABINE PHOSPHATE
DRUGTOCILIZUMAB

Sponsors

Novartis Pharma AG
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
Occurrence, severity and frequency of dose limiting toxicities (DLTs), Adverse Events (AEs) and change from baseline over 2 years in safety parameters including, but not limited to vital signs, laboratory, ECG, neurological status, and safety measures from brain and spinal cord MRIs.

Secondary

MeasureTime frame
Change from baseline for clinical measures of disability (includes EDSS, T25FW, 9HPT, SDMT)., YTB323 transgene expression levels by qPCR over time in blood; cellular kinetics parameters (Cmax, AUC, Tmax, Clast, Tlast)., Safety data from each dose level., Pre-existing and treatment-induced immunogenicity (humoral, anti-YTB323 antibody; and cellular, presence of CAR19 specific CD4 and CD8 T cells measuring interferon gamma production).

Countries

France, Germany, Italy, Spain

Outcome results

None listed

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