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RECRUITING
NCT06352242
NA

Is Trogocytosis a Predictive Marker of CAR-T Cell Response in Diffuse Large B-cell Lymphoma?

Sponsor: University Hospital, Montpellier

View on ClinicalTrials.gov

Summary

CAR-T cell therapy has improved survival in patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL R/R). However, only 65% of patients achieve a complete metabolic response after this treatment. To date, there is no predictive test for therapeutic response after injection of CAR-T cells. Recent studies have shown that the level of trogocytosis by immune cells correlates with the persistence of tumor cells in patients with hematological malignancies. Our main objective is to identify a phenotypic "signature" of trogocytosis predictive of therapeutic response 6 months after injection of CAR-T cells for DLBCL.

Official title: La Trogocytose Est-elle un Marqueur prédictif de la réponse Aux Cellules CAR-T Dans Les Lymphomes Diffus à Grandes Cellules B ?

Key Details

Gender

All

Age Range

18 Years - Any

Study Type

INTERVENTIONAL

Enrollment

85

Start Date

2024-05-22

Completion Date

2026-05-22

Last Updated

2025-09-30

Healthy Volunteers

Yes

Interventions

OTHER

Flow cytometry analysis to determine the level of trogocytosis by effector immune cells in patients

For each patient, a blood sample will be taken at D0 before the CAR-T cells are injected then at D3, D7, D10, D30 after the injection. Flow cytometry analysis will be performed on each sample on the day of collection to determine the level of trogocytosis by effector immune cells (T lymphocytes, NK cells, CAR-T cells) and to define the phenotypic "signature" of trogocytosis.

OTHER

Flow cytometry analysis to determine the level of trogocytosis by effector immune cells in volunteers

For each healthy volunteer, a single blood sample will be taken at enrollment. Flow cytometry analysis will be performed on each sample on the day of collection to determine the level of trogocytosis of normal lymphocytes and NK cells.

Locations (2)

Clinical hematology department, University Hospital

Montpellier, France

Clinical Investigation Center, University Hospital

Montpellier, France