CD5-deleted Chimeric Antigen Receptor Cells (Senza5 CART5) to Enhance Immunotherapy Against T Cell Non-Hodgkin Lymphoma (NHL): a First-in-human Phase I Clinical Trial
This is an open-label phase I study to determine the safety and recommended phase 2 dose (RP2D) of Senza5 CART5 cells in patients with relapsed or refractory CD5 positive nodal T cell NHL. RP2D will be based on the safety, tolerability, pharmacokinetics, and preliminary efficacy of Senza5 CART5 cells. This trial will evaluate up to 5 dose levels using the Bayesian Optimal Interval (BOIN) design enrolling 3 patients in each cohort to assess safety and achieve therapeutic levels so that the RP2D of Senza5 CART5 cells given as a single IV infusion can be determined.
• Histologically or cytologically confirmed relapsed or refractory (r/r) CD5-positive nodal peripheral T-cell lymphoma (such as peripheral T-cell lymphoma-not otherwise specified (PTCL-NOS), nodal T-cell lymphomas with T-follicular helper (TFH) phenotype, including follicular T cell lymphoma, angioimmunoblastic lymphoma, or anaplastic large cell lymphoma) or other non-leukemic CD5+ aggressive mature T cell lymphomas (such as enteropathy-associated T cell lymphoma, monomorphic epitheliotropic intestinal T cell lymphoma, transformed mycosis fungoides, primary cutaneous aggressive epidermotropic CD8+ cytotoxic T-cell lymphoma, primary cutaneous insert gamma delta symbols lymphoma, or subcutaneous panniculitis like T cell lymphoma).
• ≥50% expression of CD5 on flow cytometry or IHC on malignant cells on the most recent biopsy
• Must have received at least one line of prior systemic therapy for their lymphoma; participants with anaplastic large cell lymphoma (ALCL) must have received prior brentuximab unless there was a contraindication to brentuximab.
• Evaluable disease defined by at least one lesion that can be measured in least 1 dimension and measures at least 1.5 cm in its longest dimension by CT or PET scan, or bone/bone marrow involvement, or skin involvement.
• No circulating CD5+ malignant cells identified by peripheral blood flow cytometry must be present.