Overview

This is a Phase Ib/II study to evaluate the safety and efficacy of autologous T cells engineered with a chimeric antigen receptor (CAR) targeting CD19 in adult patients with relapsed or refractory B cell acute lymphoblastic leukemia (ALL).

Eligibility

Inclusion Criteria:

• Age 18 years or older Age 18 years or older
• ECOG performance status of 0 or 1
• Relapsed or refractory B cell ALL
• Patients with Ph+ ALL are eligible if intolerant to TKI, failed two lines of any TKI, or failed one line of second-generation TKI, or if TKI is contraindicated
• Documented CD19 positivity within 1 month of screening
• Phase Ib: Presence of 5% blasts in BM at screening
• Phase II: Cohort A: Presence of 5% blasts in BM at screening
• Phase II: Cohort B: MRD-positive defined as 1E-4 and <5% blasts in the BM at screening
• Adequate renal, hepatic, pulmonary, and cardiac function

Exclusion Criteria:

• Phase Ib and Phase II Cohort A only ALL with isolated EM disease
• Diagnosis of Burkitt's leukaemia/lymphoma or CML lymphoid in blast crisis
• History or presence of clinically relevant CNS pathology
• Presence of CNS-3 disease or CNS-2 disease with neurological changes
• Presence of active or uncontrolled fungal, bacterial, viral, or other infection requiring systemic antimicrobials for management
• Active or latent Hepatitis B virus or active Hepatitis C virus
• Human Immunodeficiency Virus (HIV), HTLV-1, HTLV-2, syphilis positive test
• Prior CD19 targeted therapy other than blinatumomab