Status:

RECRUITING

TCR Alpha Beta T-cell Depleted Haploidentical HCT in the Treatment of Primary Immunodeficiency and Inherited Metabolic Disorders in Children

Lead Sponsor:

Johns Hopkins All Children's Hospital

Conditions:

Primary Immune Deficiency Disorders

Metabolic Disease

Eligibility:

All Genders

Up to 21 years

Phase:

PHASE2

Brief Summary

This research is being done to learn if a new type of haploidentical transplantation using TCR alpha beta and CD19 depleted stem cell graft from the donor is safe and effective to treat the patient's ...

Eligibility Criteria

Inclusion

  • Patient with any form of primary immune deficiency/dysregulatory disorders characterized by aberrant immune function, abnormal hematopoiesis, systemic or organ specific autoimmunity and/or non-malignant lymphoproliferation. This includes, but not limited to:
  • I. Disorders of phagocytes: Chronic granulomatous disease, Leukocyte adhesion deficiency, defects of IL-10 pathway, MonoMac syndrome
  • II. Defects of cellular and humoral immunity: Severe Combined Immunodeficiency Disorder (infants with classic SCID up to 2 years of age will be excluded due to other open protocol), X-linked hyper-IgM syndrome, DOCK8 deficiency, ZAP70 deficiency, common variable immunodeficiency (CVID), Wiskott-Aldrich syndrome, NEMO deficiency.
  • III. Disorder of immune dysregulation: Immunodysregulation polyendocrinopathy enteropathy X-linked (IPEX) syndrome, CTLA4 deficiency, LRBA deficiency, STAT1 GOF, STAT3 GOF, X-linked lymphoproliferative disease etc.
  • IV. Other PIDs and immune dysregulatory disorders who can be benefitted by HCT as deemed appropriate by the PI and the treating immunologist.
  • Histiocytic disorders including hemophagocytic lymphohistiocytosis (familial HLH (types 1-5), secondary HLH (refractory to therapy or with recurrent episodes of hyper inflammation) and multisystem refractory Langerhans cell histiocytosis.
  • Metabolic disorders that could improve or stabilize after stem cell transplantation such as mucopolysaccharidoses, neurodegenerative disorders, osteopetrosis, etc.
  • Patient has a suitable genotypic identical match of 5/10. The donor and recipient must be identical, as determined by high resolution typing, at least one allele of each of the following genetic loci: HLA-A, HLA-B, HLA-C, HLA-DRB1 and HLA-DQB1.
  • Patients must have adequate organ function measured by:
  • Cardiac: asymptomatic or if symptomatic then LVEF at rest must be ≥ 40% or SF ≥ 26%
  • Pulmonary: asymptomatic or if symptomatic DLCO ≥ 40% of predicted (corrected for hemoglobin) or pulse oximetry ≥ 92% on room air if the patient is unable to perform pulmonary function testing.
  • Renal: Creatinine clearance (CrCl) or glomerular filtration rate (GFR) must be \> 50 mL/min/1.73 m2.
  • Hepatic: Serum conjugated (direct) bilirubin \< 2.0 x ULN for age; AST and ALT \< 5.0 x ULN for age.
  • Karnofsky or Lansky (age-dependent) performance score ≥ 50
  • Signed written informed consent

Exclusion

  • Participants who have an HLA-matched sibling who is able and willing to donate bone marrow. Patients with a HLA-matched unrelated donors are not excluded.
  • Pregnant or breastfeeding females.
  • Patient has HIV or uncontrolled fungal, bacterial or viral infections.
  • Patient has received prior solid organ transplant.
  • Patient has active GVHD (\> grade II) or chronic extensive GVHD due to a previous allograft at the time of inclusion.

Key Trial Info

Start Date :

July 22 2020

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

June 30 2026

Estimated Enrollment :

17 Patients enrolled

Trial Details

Trial ID

NCT04414046

Start Date

July 22 2020

End Date

June 30 2026

Last Update

June 24 2025

Active Locations (1)

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1

Johns Hopkins All Children's Hospital

St. Petersburg, Florida, United States, 33701