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

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age1-45
SponsorPorteus, Matthew, MD

About this trial

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

Eligibility criteria

Qualifiers

1. Age > 1 months (with minimum weight of 10 Kg) and < 45 years.

2. Patients deemed eligible for allogeneic HSCT under the originating study, NCT 04249830

High-risk ALL in 1st CR, ALL in 2nd or subsequent CR;

High-risk AML in 1st CR, AML in 2nd or subsequent CR;

Disqualifiers

Not eligible to receive HSCT on NCT04249830

Received another investigational agent within 30 days of enrollment.

Pregnancy (positive serum or urine beta-HCG) within 7 days of MNC donation.

Patient or donor is not willing or able to undergo an additional non-mobilized apheresis for collection of MNC prior to donation of cells for participation in NCT04249830.

Trial design

Treatments tested in this trial

  • Allogeneic Stem Cell Transplant
  • CliniMACS Prodigy System
  • T-allo10 cells addback

Treatment groups

22 Participants
are divided into 3 treatment groups

Sponsors and collaborators

Porteus, Matthew, MD

Lead sponsor

Stanford University

Sponsor institution

California Institute for Regenerative Medicine (CIRM)

Collaborator