This phase I/II trial tests the safety, side effects, and best dose of iC9/CD5CAR/IL-15 NK cells and whether they work in treating patients with T-cell leukemia or lymphoma, mantle cell lymphoma, chronic lymphocytic leukemia, or small lymphocytic lymphoma that has come back (relapsed) or does not respond to treatment (refractory). Immune system cells (such as NK cells) are made by the body to attack foreign or cancerous cells. NK cells from the donor may react against the cancer cells in the patient's body, which may help to control the disease. The NK cells are separated from a donor's umbilical cord blood. These separated NK cells will then be grown in the lab to increase the number of NK cells that can be given to the patient by vein. In this study, the NK cells given are called iC9/CD5CAR/IL-15 NK cells. Giving lymphodepleting chemotherapy before iC9/CD5CAR/IL-15 NK cells helps kill cancer cells in the body and helps make room in the patient's bone marrow for new blood-forming cells (stem cells) to grow. Giving patients an NK cell infusion may help to control the disease.
Additional locations may be listed on ClinicalTrials.gov for NCT05110742.
See trial information on ClinicalTrials.gov for a list of participating sites.
PRIMARY OBJECTIVE:
I. To determine the safety, efficacy and optimal cell dose of iC9/CD5 chimeric antigen receptor (CAR)/IL-15 natural killer (NK) cells in patients with relapsed/refractory T-cell malignances, mantle cell lymphoma, and chronic lymphocytic leukemia. The efficacy and optimal dose will be identified for individual diseases.
SECONDARY OBJECTIVES:
I. To assess the overall response rate (complete and partial response rates).
II. To quantify persistence of infused allogeneic donor iC9/CD5CAR/IL-15 NK cells in the recipient.
III. To conduct comprehensive immune reconstitution studies.
OUTLINE: This is a dose-escalation study of iC9/CD5CAR/IL-15 NK cells.
PRE-LYMPHODEPLETING CHEMOTHERAPY: Patients receive rituximab intravenously (IV) on days -14 to -7.
LYMPHODEPLETING CHEMOTHERAPY: Patients receive fludarabine IV over 1 hour and cyclophosphamide IV over 3 hours on days -5 to -3.
CB-NK INFUSION: Patients receive iC9/CD5CAR/IL-15 NK cells IV over 1 hour on day 0.
Patients undergo echocardiography (ECHO) or multigated acquisition scan (MUGA) and may undergo computed tomography (CT) during screening. Patients also undergo positron emission tomography (PET)/CT scans as clinically indicated throughout the trial. Additionally, patients undergo blood sample collection and bone marrow biopsy and/or aspiration throughout the trial.
After completion of study intervention, patients are followed up at 3, 7, 14, and 21 days, 1-4, 6, 9, and 12 months, and then periodically for up to 15 years.
Lead OrganizationM D Anderson Cancer Center
Principal InvestigatorChitra Hosing