This pilot phase I trial studies anti-CD22-CAR m971-BBz lentiviral vector-transduced autologous T lymphocytes in treating patients with acute lymphoblastic leukemia that has returned after a period of improvement (relapsed) or has not responded to previous treatment (refractory). Biological therapies, such as anti-CD22-CAR m971-BBz lentiviral vector-transduced autologous T lymphocytes, use substances made from living organisms that may attack specific cancer cells and stop them from growing or kill them.
Study sponsor and potential other locations can be found on ClinicalTrials.gov for NCT02588456.
PRIMARY OBJECTIVES:
I. Assess the safety of CART22 (anti-cluster of differentiation [CD] 22 - chimeric antigen receptor [CAR] m971-BBz lentiviral vector-transduced autologous T lymphocytes) in acute lymphoblastic leukemia (ALL) subjects.
SECONDARY OBJECTIVES:
I. Evaluate manufacturing feasibility of CART22.
II. Evaluate CART22 efficacy.
III. Characterize CART22 pharmacokinetic (PK) profile.
IV. Evaluate bioactivity of CART22 cells.
OUTLINE:
LYMPHODEPLETING CHEMOTHERAPY REGIMEN: Patients receive cyclophosphamide intravenously (IV) 1-4 days prior to CART22 cell infusion.
ANTI-CD22 CAR M971-BBZ LENTIVIRAL VECTOR-TRANSDUCED AUTOLOGOUS T CELL INFUSION: Patients receive anti-CD22-CAR m971-BBz lentiviral vector-transduced autologous T lymphocytes IV over 10 minutes on days 1-3.
After completion of study treatment, patients are followed up at day 28, monthly during months 2-6, at months 9 and 12, and then periodically for up to 15 years (optional).
Lead OrganizationUniversity of Pennsylvania/Abramson Cancer Center
Principal InvestigatorNoelle Frey