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Study identifier: NCT06839456 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Phase 1/2: CD45RA Depleted Stem Cell Addback to Prevent Viral or Fungal Infections Post TCRab/CD19 Depleted HSCT

Condition: Leukemia · High Risk Acute Lymphoblastic Leukemia · High Risk Acute Myeloid Leukemia  ·  Sponsor: Children's Hospital of Philadelphia

PhasePhase 1/Phase 2
Planned participants100
Who can joinAll sexes, 1 Month to 25 Years
Healthy volunteersNo

About this study

The major morbidities of allogeneic hematopoietic stem cell transplant (HSCT) using donors that are not human leukocyte antigen (HLA) matched siblings are graft vs host disease (GVHD) and life- threatening infections. T cell receptor alpha beta (TCRαβ) T lymphocyte depletion and CD19+ B lymphocyte depletion of alternative donor hematopoietic stem cell (HSC) grafts is effective in preventing GVHD, but immune reconstitution may be delayed, increasing the risk of infections. The central hypothesis of this study is that an addback of CD45RO memory T lymphocytes, derived from a fraction of the original donor peripheral stem cell product depleted of CD45RA naïve T lymphocytes, will accelerate immune reconstitution and help decrease the risk of infections in TCRab/CD19 depleted PSCT.

This description comes directly from the study's public registry record.

Talk to the study team

Megan Atkinson  ·  215-590-2820  ·  cttsbmtintake@chop.edu

Linda Zitkus, BSN,RN  ·  zitkusl@chop.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Children's Hospital of PhiladelphiaPhiladelphia, Pennsylvania, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06839456