CD19 CAR T Cells in Patients With Relapsed or Refractory CD19 Positive B-cell Lymphoma

In this single-center, open-label, no control, prospective clinical trial, a total of 10 relapsed or refractory CD19 positive B-cell Non-Hodgkin Lymphoma (NHL) patients will be enrolled.CD19 CAR T cells(total dose of 2×10^6/kg-1×10^7/kg) will be intravenously infused to patient in a three-day split-dose regimen: 10% on day 0, 30% on day 1 and 60% on day 2. The purpose of current study is to determine the clinical efficacy and safety of CD19 CAR T cells in patients with relapsed or refractory CD19 positive B-cell lymphoma.

Study Overview

• Status: Completed
• Conditions: Relapse; Lymphomas Non-Hodgkin's B-Cell
• Intervention / Treatment: Biological: CD19 CAR T cells

Detailed Description

In this single-center, open-label, nonrandomized, no control, prospective clinical trial, a total of 10 relapsed or refractory CD19+ B-cell Non-Hodgkin Lymphoma (NHL) patients will be enrolled. CD19 CAR T cells transduced with a lentiviral vector to express anti-CD19 scFv TCRζ:4-1BB, will be administered by i.v. injection in a three-day split-dose regimen: 10% on day 0, 30% on day 1 and 60% on day 2. Side effects of CD19 CAR T cells therapy will be monitored. The purpose of current study is to determine the clinical efficacy and safety of CD19 CAR T cells therapy in patients with relapsed or refractory CD19 positive B-cell lymphoma.

• Study Type: Interventional
• Enrollment (Actual): 20
• Phase: Phase 1

Contacts and Locations

Study Locations

• China
  • Tianjin, China, 300020
    • Institute of Hematology & Blood Diseases Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 70 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Patients aged 18 to 70 years with relapsed or refractory CD19 positive B-cell lymphoma.
• Eastern Cooperative Oncology Group (ECOG) Performance status 0-2.
• Adequate end organ function as defined by: Total bilirubin ≤ 1.5 x upper limit of normal（ULN）; Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 2.5 x ULN; Creatinine ≤ 1.5 x ULN or any serum creatinine level associated with a measured or calculated creatinine clearance of ≥ 40ml/min.
• Male and female of reproductive potential must agree to use birth control during the study and for at least 6 weeks post study.
• Patients should sign informed consent form.

Exclusion Criteria:

• Patients with central nervous system involvement by lymphoma.
• Prior chemotherapy within 2 weeks before enrollment with the following exceptions: steroids, hydroxyurea, oral mercaptopurine, methotrexate, vincristine and thioguanine are permitted within 2 weeks of enrollment as maintenance or to reduce tumor load.
• Prior allogeneic hematopoietic stem cell transplant (HSCT) ≤ 4 months before enrollment. Patients must have completed immunosuppression therapy prior to enrollment. At enrollment, patients must not have≥ grade 2 acute GVHD, or either moderate or severe limited chronic GVHD, or extensive GVHD of any severity.
• Known systemic vasculitides, primary or secondary immunodeficiency(such as HIV infection or severe inflammatory disease).
• Major surgery within 4 weeks before enrollment.
• Impaired cardiac function:Ejection fraction ≤45 % on MUGA scan. QTc interval > 450msecs on baseline ECG. Myocardial infarction within 6 months prior to starting study; other clinically significant heart disease (e.g. unstable angina, congestive heart failure or uncontrolled hypertension, uncontrolled arrhythmias).
• Administration of live vaccine ≤ 4 weeks before enrollment.
• Other concurrent severe and/or uncontrolled medical conditions: Patients with another primary malignant disease, except those that do not currently require treatment; acute or chronic liver, pancreatic or severe renal disease; another severe and/or life-threatening medical disease.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: CD19 CAR T cells; CD19 CAR T cells will be intravenously infused to patient in a three-day split-dose regimen: 10% on day 0, 30% on day 1 and 60% on day 2.	Biological: CD19 CAR T cells; CD19 CAR T cells was transduced with a lentiviral vector to express anti-CD19 scFv TCRζ:4-1BB.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Number of patients with adverse events	2 years

Secondary Outcome Measures

Outcome Measure	Time Frame
Response rate	12 months
Severity of the adverse events	2 years
Progression-free survival(PFS)	2 years
Persistence of CAR T cells in vivo	2 years

Collaborators and Investigators

• Sponsor: Institute of Hematology & Blood Diseases Hospital
• Collaborators: Juventas Cell Therapy Ltd.
• Investigators: Principal Investigator: Dehui Zou, Dr., Institute of Hematology & Blood Diseases Hospital

Study record dates

Study Major Dates

• Study Start (Actual): June 8, 2017
• Primary Completion (Actual): May 22, 2019
• Study Completion (Actual): June 22, 2021

Study Registration Dates

• First Submitted: January 20, 2017
• First Submitted That Met QC Criteria: January 20, 2017
• First Posted (Estimate): January 24, 2017

Study Record Updates

• Last Update Posted (Actual): January 26, 2022
• Last Update Submitted That Met QC Criteria: January 24, 2022
• Last Verified: January 1, 2022

More Information

Terms related to this study

• Keywords: lymphoma; relapse; refractory; B-cell; non-hodgkin; CD19 CAR T cells
• Additional Relevant MeSH Terms: Pathologic Processes; Immune System Diseases; Neoplasms by Histologic Type; Neoplasms; Lymphoproliferative Disorders; Lymphatic Diseases; Immunoproliferative Disorders; Lymphoma, Non-Hodgkin; Disease Attributes; Lymphoma; Lymphoma, B-Cell; Recurrence
• Other Study ID Numbers: XH-CD19CART-002

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No