Actively Recruiting

Phase 1
Age: 1Month - 45Years
All Genders
NCT04640987

Stem Cell Transplant From Donors After Alpha Beta Cell Depletion in Children and Adults With T-allo10 Cells Addback

Led by Porteus, Matthew, MD · Updated on 2026-01-08

22

Participants Needed

1

Research Sites

420 weeks

Total Duration

On this page

Sponsors

P

Porteus, Matthew, MD

Lead Sponsor

C

California Institute for Regenerative Medicine (CIRM)

Collaborating Sponsor

AI-Summary

What this Trial Is About

The purpose of this study is to determine the safety of a cell therapy, T-allo10, after αβdepleted-HSCT in the hopes that it will boost the adaptive immune reconstitution of the patient while sparing the risk of developing severe Graft-versus-Host Disease (GvHD). The primary objective of Phase 1a is to determine the recommended Phase 2 dose (RP2D) administered after infusion of αβdepleted-HSCT in children and young adults with hematologic malignancies. A Phase 1b extension will occur after dose escalation, enrolling at the RP2D for the T-allo10 cells determined in the Phase 1 portion to evaluate the safety and efficacy of infusion of T-allo10 after receipt of αβdepleted-HSCT. Additionally, Phase 1b aims to explore improvements in immune reconstitution. All participants on this study must be enrolled on another study: NCT04249830

CONDITIONS

Official Title

Stem Cell Transplant From Donors After Alpha Beta Cell Depletion in Children and Adults With T-allo10 Cells Addback

Who Can Participate

Age: 1Month - 45Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Age greater than 1 month (minimum weight 10 kg) and less than 45 years
  • Eligible for allogeneic HSCT under study NCT04249830
  • Diagnosed with life-threatening hematologic malignancies recommended for HSCT, including high-risk ALL or AML in remission, myelodysplastic syndrome, juvenile myelomonocytic leukemia, non-Hodgkin lymphoma in remission, or other eligible blood cancers
  • Adults (18 years or older) able to give informed consent or have a legally authorized representative (LAR) to consent
  • For children under 18, a parent or guardian must give consent; verbal assent obtained from children over 7 when appropriate
  • Patient has already received alpha beta depleted HSCT and shows myeloid engraftment
  • No active grade II aGvHD requiring more than 0.5 mg/kg steroids or any grade III/IV aGvHD at time of T-allo10 infusion
Not Eligible

You will not qualify if you...

  • Not eligible for HSCT under study NCT04249830
  • Received another investigational treatment within 30 days before enrollment
  • Pregnant within 7 days before mononuclear cell (MNC) donation
  • Patient or donor unwilling or unable to undergo an additional non-mobilized apheresis for MNC collection prior to cell donation for participation in study NCT04249830

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 1 location

1

Lucile Packard Children's Hospital

Palo Alto, California, United States, 94305

Actively Recruiting

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How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NON_RANDOMIZED

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

3

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