T-cell Depleted Donor Lymphocyte Infusion (DLI)for Acute Myeloid Leukemia (AML) or High Risk Myelodysplastic Syndrome (MDS)

  • STATUS
    Recruiting
  • participants needed
    16
  • sponsor
    National University Hospital, Singapore
Updated on 7 November 2020
remission
graft versus host disease
myeloid leukemia
leukemia
bone marrow procedure
serum bilirubin level
donor lymphocyte infusion
high risk myelodysplastic syndrome

Summary

Primary Objectives: This a pilot project to determine the feasibility of the preemptive CD8+ depleted T-cell donor lymphocyte infusion (DLI) in: - Reducing the incidence of graft versus host disease (GVHD) based on standard classification of acute and chronic GVHD - Improving hte disease remission rate in comparison with our previous study results. Secondary Objectives: - To investigate the impact of CD8+ depleted T-cell DLI in hematopoietic chimerism, and immunologic recovery of transplant patients.

Description

The scientific investigation in this study protocol: 1. Define the role of preemptive and specific DLI in preserving the GVL effect in the setting of NMT. The ability of selecting components of T cells for transplant and DLI will allow us to test the hypothesis of distinctive roles in subsets of T cells. It was found that CD8-depleted DLI was administered to prevent relapse after TCD (T-cell depleted) BMT (bone marrow as the stem cell source) or CD34-selected PBSC. Whether preemptive CD8-depleted DLI can perform this function after nonmyeloablative transplantation (NMT) needs to be established, as proposed in our study. If there turns out to be a role for DLI in these circumstances, a CD8-depleted lymphocyte product that can limit GVHD would be a very attractive option. We would also define the relationship of the level of donor chimerism and disease control. 2. Investigate the impact of CD8-depleted DLI in NMT at specific doses and time points for the reduction of GVHD. The GVHD pattern may vary between different ethnic populations as suggested by our earlier NMT study. Our current proposed study will further shed light on the optimal GVHD prophylaxis regimen in the Singapore patient population.

Details
Condition Preleukemia, Acute myeloid leukemia, MYELODYSPLASTIC SYNDROME
Treatment CD8+ T-cell depleted donor lymphocyte infusion
Clinical Study IdentifierNCT00242515
SponsorNational University Hospital, Singapore
Last Modified on7 November 2020

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