CD4^LVFOXP3 in Participants With IPEX
Phase 1 Study of Autologous CD4^LVFOXP3 in Participants With Immune Dysregulation Polyendocrinopathy Enteropathy X-linked (IPEX) Syndrome
Bacchetta, Rosa, MD
30 participants
Mar 22, 2022
INTERVENTIONAL
Conditions
Summary
This first-in-human, Phase 1 clinical trial will test the feasibility of the manufacturing and the safety of the administration of CD4\^LVFOXP3 in up to 30 evaluable human participants with IPEX and evaluate the impact of the CD4\^LVFOXP3 infusion on the disease.
Eligibility
Inclusion Criteria9
- Body weight greater than 8 kg, unless assessed as able to tolerate leukapheresis
- FOXP3 gene mutation
- Medical history of progressive symptoms of IPEX with persistency of some symptoms and/or signs requiring immune suppressive medication. The participant may or may not be on immunosuppression at time of starting the study.
- Uncontrolled IPEX disease but unable to tolerate immune suppressive medication
- Recurrent IPEX symptoms, requiring immune suppressive medications, in participants who have had prior allogeneic (allo) blood stem cell transplantation (HSCT).
- ≥ 50% Performance rating on Lansky/Karnofsky Scale
- Organ and marrow function within acceptable levels of function
- Absence of ongoing infections
- Must be able to consent if an adult
Exclusion Criteria8
- Medical instability
- Less than 6 months life expectancy
- Inability to meet limits for steroid dosing
- Eligible for an HLA matched sibling or matched unrelated donor blood stem cell transplant, and be willing to undergo transplant.
- Unrelated or comorbid disease
- Allergy to any study medication, product, or intervention
- Currently receiving another experimental treatment
- History of malignancy, unless disease free for at least 2 years, with the exception of non melanoma skin cancer or carcinoma in situ
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Interventions
Infusion of autologous CD4+ T cells that have undergone lentiviral-mediated gene transfer of: i) healthy human FOXP3 gene leading to persistent high FOXP3 expression and acquisition of Treg-like cell function; and ii) human CD271 surface marker gene that allows tracking and quantification of the CD4\^LVFOXP3 in the blood.
Locations(1)
View Full Details on ClinicalTrials.gov
For the most up-to-date information, visit the official listing.
NCT05241444