MT2021-08T Cell Receptor Alpha/Beta Depletion PBSC Transplantation for Heme Malignancies

Phase II, Open-Label, Prospective Study of T Cell Receptor Alpha/Beta Depletion (A/B TCD) Peripheral Blood Stem Cell (PBSC) Transplantation for Children and Adults With Hematological Malignancies

This is a phase II, open-label, prospective study of T cell receptor alpha/beta depletion (TCR α/β TCD) peripheral blood stem cell (PBSC) transplantation for children and adults with hematological malignancies. This is a safety/feasibility study of the investigational procedure/product.

Inclusion Criteria:

• Histological confirmation of hematological malignancies
• Acute leukemias
• Acute Myeloid Leukemia (AML) and related precursor neoplasms
• Favorable risk AML is defined as having one of the following:
• Acute lymphoblastic leukemia (ALL)/lymphoma
• Myelodysplasia (MDS) IPSS INT-2 or High Risk (i.e. RAEB, RAEBt) or Refractory Anemia with severe pancytopenia, transfusion dependence, or high risk cytogenetics or molecular features.
• Age 60 years of age or younger at the time of consent
• Karnofsky performance status ≥ 70% or Lansky play score 50% for ≤16 years of age.
• Adequate organ function

Exclusion Criteria:

• Pregnant or breastfeeding.
• Active uncontrolled infection within 1 week of starting preparative therapy
• Known seropositive for HIV or known active Hepatitis B or C infection with detectable viral load by PCR.
• Any prior autologous or allogeneic transplant
• CML blast crisis
• Active central nervous system malignancy