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LONG-TERM FOLLOW-UP PROTOCOL FOR SUBJECTS TREATED WITH GENE-MODIFIED T CELLS

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2023-504201-36-00
Acronym
GC-LTFU-001
Enrollment
214
Registered
2023-08-14
Start date
2018-12-21
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

Defined by parent protocol. The study will enroll all adult and paediatric subjects who received at least one genetically modified T cells infusion in a previous Celgene sponsored study.

Brief summary

Safety endpoints:Incidence of delayed adverse events considered at least possibly related to GM T cell therapy (i.e. neurologic/autoimmune/hematologic disorders, infections, reportable new malignancies, hospitalizations, etc.)., Safety endpoints:Incidence of certain hematologic new malignancies irrespective of causality., Safety endpoints:Persistence of GM T cells, analysis of vector integration sites, incidence of RCL., Safety endpoints:Pediatrics only: Physical growth as assessed by physical examination and sexual maturity., Efficacy endpoints:Overall survival (subjects with original diagnosis of malignancies), Efficacy endpoints:Proportion of subjects who progressed on the study (subjects with original diagnosis of malignancies), Efficacy endpoints:Proportion of subjects experiencing a disease relapse (subjects with autoimmune diseases), The timeframe for safety and efficacy assessments is up to 15 years from last GM T-cell infusion. For pediatric participants will continue until they reach Tanner Stage 5. Assessments will start 3 months after the last GM T-cell infusion, then will continue at a frequency of once every 6 months until Month 60, and then once a year until the EOS.

Detailed description

Lymphocyte count (B-cell) for participants that received a CD-19-directed GM T-cell therapy. This assessment will be required up to 5 years from the last GM T-cell infusion (with the same frequency described for the primary endpoints) and after that might be concluded if B-cell levels are considered back to normal levels; otherwise follow up continues for up to 15 years if B-cell levels remain below normal levels.

Interventions

Sponsors

Celgene Corp.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
0 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Safety endpoints:Incidence of delayed adverse events considered at least possibly related to GM T cell therapy (i.e. neurologic/autoimmune/hematologic disorders, infections, reportable new malignancies, hospitalizations, etc.)., Safety endpoints:Incidence of certain hematologic new malignancies irrespective of causality., Safety endpoints:Persistence of GM T cells, analysis of vector integration sites, incidence of RCL., Safety endpoints:Pediatrics only: Physical growth as assessed by physical examination and sexual maturity., Efficacy endpoints:Overall survival (subjects with original diagnosis of malignancies), Efficacy endpoints:Proportion of subjects who progressed on the study (subjects with original diagnosis of malignancies), Efficacy endpoints:Proportion of subjects experiencing a disease relapse (subjects with autoimmune diseases), The timeframe for safety and efficacy assessments is up to 15 years from last GM T-cell infusion. For pediatric participants will continue until th

Secondary

MeasureTime frame
Lymphocyte count (B-cell) for participants that received a CD-19-directed GM T-cell therapy. This assessment will be required up to 5 years from the last GM T-cell infusion (with the same frequency described for the primary endpoints) and after that might be concluded if B-cell levels are considered back to normal levels; otherwise follow up continues for up to 15 years if B-cell levels remain below normal levels.

Countries

Austria, Belgium, Czechia, Denmark, Finland, France, Germany, Greece, Italy, Netherlands, Norway, Poland, Portugal, Romania, Spain, Sweden

Outcome results

None listed

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