Safety and Efficacy of ALLO-501A Anti-CD19 Allogeneic CAR T Cells in Adults With Relapsed/Refractory Large B Cell Lymphoma, Chronic Lymphocytic Leukemia and Small Lymphocytic Lymphoma (ALPHA2)

Trial ID or NCT#

NCT04416984

Status

recruiting iconRECRUITING

Purpose

This is a single-arm, open label, multicenter Phase 1/2 study evaluating ALLO-501A in adult subjects with R/R LBCL and CLL/SLL. The purpose of the ALPHA2 study is to assess the safety, efficacy, and cell kinetics of ALLO-501A in adults with relapsed or refractory large B-cell lymphoma and assess the safety of ALLO-501A in adults with relapsed or refractory chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) after a lymphodepletion regimen comprising fludarabine, cyclophosphamide, and ALLO-647.

Official Title

A Single-Arm, Open-Label, Phase 1/2 Study Evaluating the Safety, Efficacy, and Cellular Kinetics/Pharmacodynamics of ALLO-501A, an Anti-CD19 Allogeneic CAR T Cell Therapy, and ALLO-647, an Anti-CD52 Monoclonal Antibody, in Subjects With Relapsed/Refractory Large B-Cell Lymphoma (LBCL)

Eligibility Criteria

Ages Eligible for Study: Older than 18 Years
Sexes Eligible for Study: All
Accepts Healthy Volunteers: No
Inclusion Criteria:
  1. For subjects with LBCL: - Histologically confirmed diagnosis of relapsed/refractory large B-cell lymphoma at last relapse per WHO 2017 - At least 1 measurable lesion at time of enrollment - Relapsed or refractory disease after at least 2 lines of chemotherapy - Absence of significant donor (product)-specific anti-HLA antibodies (DSA) at screening (Note: Only applicable for Phase 2) For subjects with CLL/SLL: - Diagnosis of CLL/SLL - Relapsed/refractory disease - Subjects relapsed/refractory to BTKi therapy and high-risk disease - Subjects relapsed/refractory with 2 or more lines of therapy including BTKi and BCL-2 inhibitor (venetoclax) - At least 1 measurable lesion at time of enrollment For all subjects: - Male or female subjects ≥18 years of age - Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1 - Adequate hematological, renal, and liver function
Exclusion Criteria:
  1. - Active central nervous system (CNS) involvement by malignancy - Current thyroid disorder (including hyperthyroidism), except for subjects with hypothyroidism controlled on a stable dose of hormone replacement therapy - Any other active malignancies that required systemic treatment within 3 years prior to enrollment - Radiation therapy within 2 weeks prior to ALLO-647 - Prior irradiation to >25% of the bone marrow - Hypocellular bone marrow for age by institutional standard as determined from a bone marrow biopsy performed at time of screening (Note: Only applicable for Phase 2). - Autologous hematopoietic stem cell transplant (HSCT) within last 6 months (24 weeks) - Systemic anti-cancer therapy within 2 weeks prior to receiving ALLO-647

Investigator(s)

David Miklos
David Miklos
Blood and marrow transplant specialist, Blood and marrow transplant specialist, Hematologist, Medical oncologist
Professor of Medicine (Blood and Marrow Transplantation and Cellular Therapy)

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Contact

Linnea Bjornlund Nichols
650-724-9050