Pilot Study of Memory-like Natural Killer (ML NK) Cells After TCRαβ T Cell Depleted Haploidentical Transplant in AML

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age18+
SponsorWashington University School of Medicine

About this trial

This trial represents a single institution phase I/II pilot study with the primary objective of establishing the safety and feasibility of generating and infusing ML NK cells after TCRαβ haplo-HCT.

Eligibility criteria

Qualifiers

Complete remission (CR) defined by < 5% marrow blasts by morphology in the context of hematological recovery (ANC ≥ 0.5× 10^9/L, platelet count ≥ 50 × 10^9/L).

Morphological leukemia free state (MLFS) defined by the absence of hematological recovery and < 5% marrow blasts by morphology

MRD ≥ 1% after first induction course

MRD ≥ 0.1% after second induction course

Disqualifiers

Both Cohorts

Active GvHD. If patient had prior GvHD, patient must be off immunosuppression for at least 3 months prior to starting study treatment.

Active non-hematologic malignancy. History of other malignancy is acceptable as long as therapy has been completed and there is no current evidence of disease.

Currently receiving any other investigational agents at the time of transplant.

Trial design

Treatments tested in this trial

  • Rabbit Anti thymocyte globulin
  • Busulfan
  • Fludarabine
  • Thiotepa
  • Melphalan
  • TCR alpha beta / CD19+ depleted haploidentical hematopoietic progenitor cell graft
  • memory-like natural killer cells
  • IL-2
  • Plerixafor
  • Granulocyte Colony-Stimulating Factor
  • CliniMACS

Treatment groups

68 Participants
are divided into 3 treatment groups

Sponsors and collaborators

Washington University School of Medicine

Lead sponsor

The Leukemia and Lymphoma Society

Collaborator

Rising Tide Foundation

Collaborator

St. Louis Children's Hospital Foundation

Collaborator

Children's Discovery Institute

Collaborator