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ATLG Levels in Autologous HSCT for Multiple Sclerosis

ATLG Levels and Immune Reconstitution Kinetics in Autologous HSCT for Multiple Sclerosis

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07635693
Acronym
ATLG-MS
Enrollment
20
Registered
2026-06-09
Start date
2026-05-04
Completion date
2029-05-04
Last updated
2026-06-09

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

Conditions

ATLG, Autologous Hematopoietic Stem Cell Transplant, Multiple Sclerosis

Brief summary

This is a prospective, observational, biological, multicenter study to investigate IR profile, ATLG dynamics, main HSCT and disease outcomes in MS. This study will provide a preliminary descriptive evaluation of key study parameters, including ATLG pharmacokinetics and immune reconstitution trends, as well as an initial assessment of variability (e.g., dispersion of immunological biomarkers), to support the interpretation of results and the design of future studies. Since this is an observational study, no clinical decision will be made, and the interim analysis will not have an impact of the study conduction, and it will not be a stopping rule.

Interventions

DRUGATLG administration

Patients will receive standard conditioning regimen (BEAM or cyclophosphamide) and ATLG (total dose 30 mg/kg over 3 days: 10 mg/kg on days -3, -2 and -1).

Sponsors

Ciceri Fabio
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Participant is willing and able to give informed consent for participation in the study. * Adult patients (age \>/= 18y) * Diagnosis of MS * Confirmed program of autologous HSCT according to standard EBMT indications (any conditioning regimen considered standard, BEAM or Cyclophosphamide) * ATLG (total dose 30 mg/kg over 3 days: 10 mg/kg on days -3, -2 and -1) in the conditioning regimen.

Exclusion criteria

* Subjects that did not accept to sign the informed consent. * Use of ATG. * Contraindications to HSCT procedures (including pregnancy and breast feeding, uncontrolled active infections)

Design outcomes

Primary

MeasureTime frameDescription
Investigate immune status in correlation with ATLGbefore mobilization, before conditioning, +1/3/6/12 months after HSCT.Longitudinal IR monitoring (T/B/NK lymphocyte subpopulations including naïve- memory- stem/memory- regulatory subsets, cytokine profile, NFL/Macrophages) on PB

Secondary

MeasureTime frameDescription
Assess clinically relevant viral infections in correlation with viral specific IRbefore mobilization, +1 month after HSCT within the first year after HSCT.Assessment of pathogen-specific responses (CMV specific T cells by ELISpot) and occurrence of clinically relevant viral infections (CMV, EBV; ECIL 10 guidelines).
To assess HSCT and neurological outcomesat 100 days and 1-yearTransplant-related mortality (TRM)
Assessment of Progression Free Survival (PFS)at 1-yearAssessment of general HSCT outcomes (PFS)
Assessment of Overall survival (OS)At 1 yearAssessment of general HSCT outcomes - OS
neurological status- Expanded Disability Status Scale (EDSS)at 100 days, 6 months and 1-yearExpanded Disability Status Scale (EDSS)
neurological status - neurological progressionat 1 yearneurological status - neurological progression
neurological status -No Evidence of Disease ActivityAt 1 yearNo Evidence of Disease Activity (NEDA)

Countries

Italy

Contacts

CONTACTRaffaella Greco
greco.raffaella@hsr.it+39 02-2643-3903

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 10, 2026