Recombinant Human IL-7 (NT-I7) in Relapsed/Refractory Multiple Myeloma Following BCMA CAR-T Therapy (Cilta-cel)

CAR-T cell therapy is an emerging treatment modality in relapsed and refractory multiple myeloma (MM). CAR-T therapy in MM relies on directing autologous T-cells to detect and clear myeloma cells expressing B-cell Maturation Antigen (BCMA). While BCMA CAR-T cell-treated patients achieve an excellent overall response rate, their response is often not durable. NT-I7 promotes CAR-T cell expansion and efficacy in pre-clinical lymphoma models. In patients receiving CD19-directed CAR-T therapy for lymphoma, NT-I7 augmented CAR-T expansion while being safe and tolerable. The impact of NT-I7 on BCMA CAR-T cells in multiple myeloma is unknown. This is a two-stage, multicenter, phase IB study, with a dose escalation stage leading into a two-arm, double blind, placebo-controlled, randomized dose expansion stage testing the safety and toxicity of adding NT-I7 to BCMA CAR-T therapy in patients with relapsed and refractory multiple myeloma. The hypothesis is that NT-I7 will promote CAR-T expansion and persistence which will enhance clearance of MM, while maintaining a favorable safety and toxicity profile. Patients receiving standard of care BCMA CAR-T (cilta-cel) will be randomized to either NT-I7 or placebo. Correlative studies will evaluate CAR-T cell expansion, persistence, immune-phenotype, function and correlate with clinical outcomes.

NCT Number	NCT07200089
Lead Sponsor	Washington University School of Medicine Collaborators: NeoImmuneTech, Swim Across America
Conditions	Multiple Myeloma, Multiple Myeloma in Relapse, Multiple Myeloma, Refractory
Enrollment	52 participants
Start Date	2026-08-31
Primary Completion	2028-03-10 (estimated)
Study Completion	2028-12-31 (estimated)
Updated on ClinicalTrials.gov	2026-07-21