TCR Alpha Beta T-cell Depleted Haploidentical HCT for Non-Malignant Blood Disorders in Children

This study is investigating a new type of stem cell transplant called TCR alpha beta T-cell and CD19 B-cell depleted haploidentical transplantation for children and young adults (ages 0-21) with certain non-cancerous blood disorders like severe sickle cell disease, severe aplastic anemia, or bone marrow failure syndrome. This treatment uses stem cells from a parent or half-matched family member. These cells are specially processed using a device called CliniMACS, which is still being studied. The main goal is to see if the donor stem cells successfully engraft (start working) in the patient's body by Day 100 after the transplant. The study is currently recruiting up to 17 participants, but its overall status is unclear.

Study design
This is an interventional study, meaning participants will receive a specific treatment. It plans to enroll 17 participants.
What's involved
Not specified in the trial record.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoint is measured at Day 100 after transplantation, focusing on successful donor engraftment.

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NCT04356469

TCR Alpha Beta T-cell Depleted Haploidentical HCT in the Treatment of Non-Malignant Hematological Disorders in Children

Recruiting
PHASE2Ages 0–21InterventionalTreatment
Johns Hopkins All Children's Hospital
~17 participants
Updated 2026-07-01 on ClinicalTrials.gov
What's tested:Haploidentical Hematopoietic Cell Transplantation

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Incidence of successful donor engraftment
Measured over Day 100 after transplantation
Hemoglobinopathy (Disorder)
Severe Aplastic Anemia
Bone Marrow Failure Syndrome
1 sites across 1 states
Florida1
  • Deepak Chellapandian, MD · PRINCIPAL_INVESTIGATOR · Johns Hopkins All Children's Hospital

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  • Incidence of successful donor engraftmentDay 100 after transplantation

    The incidence of engraftment at day 100 will be described based on donor chimerism in the whole blood and or fractions sorted for T-cell and myeloid subsets. The donor chimerism will be scored as autologous reconstitution (\< 5% donor), mixed chimerism (5-49%=low mixed, 50-95%=high mixed), \> 95%=full donor chimerism.