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Early Prophylactic Donor Lymphocyte Infusion After Allo-HSCT for Patients With AML (ELIT-AML01)

I

Institut Paoli-Calmettes

Status and phase

Not yet enrolling
Phase 2

Conditions

Acute Myeloid Leukemia

Treatments

Biological: prophylactic donor lymphocyte infusion (DLI)

Study type

Interventional

Funder types

Other

Identifiers

NCT03597321
ELIT-AML01-IPC 2017-006

Details and patient eligibility

About

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.

Enrollment

124 estimated patients

Sex

All

Ages

18 to 70 years old

Volunteers

No Healthy Volunteers

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.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

124 participants in 2 patient groups

Arm A-DLI
Experimental group
Description:
Patients will be planned to receive prophylactic Donor Lymphocyte Injection
Treatment:
Biological: prophylactic donor lymphocyte infusion (DLI)
Arm B- No intervention
No Intervention group

Trial contacts and locations

1

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Central trial contact

Jihane Pakradouni, Pharmd,PhD; Dominique Genre, MD

Data sourced from clinicaltrials.gov

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