Early Prophylactic Donor Lymphocyte Infusion After Allo-HSCT for Patients With AML

NCT ID: NCT03597321

Last Updated: 2025-06-15

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: PHASE2
• Total Enrollment: 124 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2020-09-07
• Study Completion Date: 2028-05-31

Brief Summary

Allogeneic hematopoietic stem cell transplantation (Allo-HSCT) is a curative option for patients with acute myeloid leukemia (AML). However, transplantation related toxicity and mortality as well as the existence of HLA identical sibling donor represent major limitations. Over the 20 past years, the development of reduced intensity conditioning (RIC) regimen and the use of alternative donors allowed extending the possibility of Allo-HSCT for AML, with decreased toxicity and mortality. This invited to propose this strategy to more advanced patients, making that AML recurrence has become one of the main issues after Allo-HSCT. Thus, to develop prophylactic and preemptive strategies to minimize disease recurrence after Allo-HSCT is now the main challenge in the field. Among cellular and/or pharmacological treatments after Allo-HSCT, donor lymphocyte infusion (DLI) is probably one of the most commonly used treatments after Allo-HSCT. Indeed, DLI were reported as a potential efficient immunotherapy more than 20 years ago for the treatment of patients with leukemia relapsing after Allo-HSCT. However, most of experiences were reported in the setting of relapse after Allo-HSCT and no prospective evaluation of prophylactic DLI is available so far. Thus no strong recommendation for the use of DLI after Allo-HSCT can be made. Our study proposal would like to assess the question of prophylactic DLI efficacy, as a proof of concept of early immune intervention after Allo-HSCT. The investigators, therefore, designed a prospective multicenter randomized trial evaluating the impact of early DLI on outcome after Allo-HSCT for AML.

Conditions

Acute Myeloid Leukemia

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: NONE

Study Groups

Arm A-DLI

Patients will be planned to receive prophylactic Donor Lymphocyte Injection

Group Type: EXPERIMENTAL

prophylactic donor lymphocyte infusion (DLI)

Intervention Type: BIOLOGICAL

DLI will be collected from the donor by leukapheresis according to local standard procedures of each center. Cell product could be collected in one time or more, and administered fresh or after a frozen storage, according to each center's guidelines. A sufficient amount of T-cell dose should be collected to theoretically perform 3 DLI. DLI procedure will be performed according to local guidelines of each center.

Arm B- No intervention

Group Type: NO_INTERVENTION

No interventions assigned to this group

Interventions

prophylactic donor lymphocyte infusion (DLI)

DLI will be collected from the donor by leukapheresis according to local standard procedures of each center. Cell product could be collected in one time or more, and administered fresh or after a frozen storage, according to each center's guidelines. A sufficient amount of T-cell dose should be collected to theoretically perform 3 DLI. DLI procedure will be performed according to local guidelines of each center.

Intervention Type: BIOLOGICAL

Eligibility Criteria

Inclusion Criteria

• AML in hematological complete remission at the time of inclusion
• Patient age from 18 to 70.
• Able to comply with the protocol.
• Written informed consent.
• Allogeneic stem cell transplantation from any donor except cord blood.
• Unmanipulated bone marrow or peripheral blood stem cells as graft source are allowed
• Ongoing GVHD prophylaxis using cyclosporin A at the time of inclusion.

Exclusion Criteria

• Presence or history of grade 2 to 4 acute GVHD.
• No hematological CR of AML at the time of inclusion. CR patients positive with molecular or phenotypic minimal residual disease (MRD) can be included.
• Pregnancy/breast feeding.
• Patient considered socially or psychologically unable to comply with the treatment and the required medical follow-up.
• Concomitant uncontrolled disease and/or organ dysfunction (infection, severe heart, renal, respiratory or hepatic failure…).
• Primary or secondary graft failure.
• Previous solid organ allogeneic transplantation.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 70 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Institut Paoli-Calmettes

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

Raynier Devillier, MD,PhD

Role: PRINCIPAL_INVESTIGATOR

Institut Paoli-Calmettes

Locations

Institut Paoli-Calmettes

Marseille, Bouches Du Rhône, France

Countries

France

Other Identifiers

ELIT-AML01-IPC 2017-006

Identifier Type: -

Identifier Source: org_study_id