drugset / Trial / NCT03233854

CD19/CD22 Chimeric Antigen Receptor (CAR) T Cells With or Without NKTR-255 in Adults With Recurrent or Refractory B Cell Malignancies

NCT03233854

NaSingle-groupOpen-labelTreatment

Summary

This phase I trial studies the side effects of CD19/CD22 chimeric antigen receptor (CAR) T cells when given together with chemotherapy and NKTR-255, and to see how well they work in treating patients with CD19 positive B acute lymphoblastic leukemia that has come back or does not respond to treatment. A CAR is a genetically-engineered receptor made so that immune cells (T cells) can attack cancer cells by recognizing and responding to the CD19/CD22 proteins. These proteins are commonly found on diffuse large B-cell lymphoma and B acute lymphoblastic leukemia. Drugs used in chemotherapy, such as cyclophosphamide and fludarabine phosphate, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. NKTR-255 is an investigational IL-15 receptor agonist designed to boost the immune system's natural ability to fight cancer. Giving CD19/CD22-CAR T cells and chemotherapy in combination with NKTR-255 may work better in treating patients with diffuse large B-cell lymphoma or B acute lymphoblastic leukemia.

Timeline

Start
2017-09-01
Primary completion
2023-06-20
Completion
2035-09-01

Publications

Drugs

EvaluationDrugModalityDoseRoute
Subject Axicabtagene Ciloleucel Cell therapy Intravenous
Subject NKTR-255 Protein / enzyme biologic Intravenous
Background Cyclophosphamide Other / unclassified Intravenous
Background Fludarabine Small molecule Intravenous