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ENROLLING BY INVITATION
NCT04836390
PHASE2

Donor-Derived Ex-Vivo Expanded Natural Killer Cell Infusions in Children and Young Adults With High Risk Acute Myeloid Leukemia Receiving Myeloablative HLA-Haploidentical Hematopoietic Cell Transplant

Sponsor: Michael Pulsipher

View on ClinicalTrials.gov

Summary

This is a Phase II pilot study to determine the efficacy of three fixed dose (1 x 108/kg) infusions of ex-vivo expanded human leukocyte antigen (HLA)-haploidentical donor natural killer (NK) cells (haploNK) in children and young adults with high risk acute myeloid leukemia (AML) undergoing HLA-haploidentical hematopoietic cell transplant (haploHCT) with a busulfan and cyclophosphamide-based myeloablative conditioning regimen and post-transplant cyclophosphamide (PTCy) for graft versus host disease (GVHD) prophylaxis. The investigators will also demonstrate the feasibility of performing this trial in a multi-center study. The investigators hypothesize that the infusion of haploNK in this setting will facilitate immune reconstitution and decrease relapse rates and infectious complications without increasing GVHD, resulting in improved survival as compared to recent historical cohorts of haploHCT without NK cell infusion.

Official title: A Phase II Pilot Study of Donor-Derived Ex-Vivo Expanded Natural Killer Cell Infusions in Children and Young Adults With High Risk Acute Myeloid Leukemia Receiving Myeloablative HLA-Haploidentical Hematopoietic Cell Transplant: A Multicenter Pediatric Transplantation and Cellular Therapy Consortium (PTCTC) Study

Key Details

Gender

All

Age Range

0 Years - 25 Years

Study Type

INTERVENTIONAL

Enrollment

30

Start Date

2021-08-24

Completion Date

2028-05

Last Updated

2025-05-04

Healthy Volunteers

No

Interventions

DRUG

Donor-Derived Ex-Vivo Expanded Natural Killer Cell Infusions

Peripheral blood (PB) ≤ 450 mL and based on donor weight (minimum 10 ml/kg) will be drawn from the HLA-haploidentical donor at least 16 days before the scheduled day of transplant (Day 0). HaploNK cells will be manufactured from the PB of the donor after co-culture with irradiated feeder cells (IFC) as described in Section 2.4. The recipients will receive three NK cell infusions on Day-1, Day+7 (± 1 day) and Day+42 (up to Day+90) from day of transplant (Day 0).

Locations (13)

Phoenix Children's Hospital

Phoenix, Arizona, United States

Children's Hospital Los Angeles

Los Angeles, California, United States

Children's Hospital Colorado

Aurora, Colorado, United States

AdventHealth Orlando

Orlando, Florida, United States

Johns Hopkins All Children's Hospital

St. Petersburg, Florida, United States

Ann & Robert H. Lurie Children's Hospital

Chicago, Illinois, United States

Washington University, St. Louis

St Louis, Missouri, United States

New York Medical College

Valhalla, New York, United States

Cleveland Clinic Lerner College of Medicine

Cleveland, Ohio, United States

Nationwide Children's Hospital

Columbus, Ohio, United States

University of Utah

Salt Lake City, Utah, United States

Fred Hutchinson Cancer Center

Seattle, Washington, United States

Medical College of Wisconsin

Milwaukee, Wisconsin, United States