CD19 Positive Malignant B-cell Leukemia and Lymphoma Clinical Trial
Official title:
Autologous T Cells With a Chimeric Antigen Receptor in Patients With CD19-positive Malignant B Cell Leukemia and Lymphoma
This study is designed for determining the safety and relative engraftment levels of the redirected autologous T cells transduced with the anti-CD19 lentiviral vector in patients with CD19-positive B cell leukemia and malignant lymphoma.
| Status | Not yet recruiting |
| Enrollment | 45 |
| Est. completion date | January 2020 |
| Est. primary completion date | April 2018 |
| Accepts healthy volunteers | No |
| Gender | Both |
| Age group | 18 Years to 65 Years |
| Eligibility |
Inclusion Criteria: - Subjects with documented CD19-positive malignant B cell leukemia and lymphoma. 1. Patients aged between 18 ~ 65 with malignant B cell leukemia and lymphoma. 2. CD19-positive B cell leukemia or lymphoma. 3. Expected survival > 12 weeks. 4. ECOG scores 0-1, or KPS scores > 80. 5. Adequate venous access for apheresis or venous sampling, and no other contraindications for leukapheresis. 6. WBC = 2.5×109/L; LY = 0.7×109/L; LY% = 15%. 7. Creatinine = 2.0 mg/dL (176.8 µmol/L). 8. ALT/AST = 2.5 ULN. 9. Bilirubin = 2.0 mg/dL (34.2 µmol/L). 10. Prothrombin Time (PT) : International Normalized Ratio (INR) < 1.7, or PT is at most 4 s longer than normal value. All tests results should comply with the above criteria. No continuing supportive care is received. Exclusion Criteria: - 1. CD19-negative B cell leukemia or lymphoma. 2. Feasibility assessment during screening demonstrates < 5% transduction of target lymphocytes, or insufficient expansion (< 5-fold) in response to aCD3/CD28 costimulation. 3. Pregnant or lactating women. (The safety of this therapy on unborn children is not known. Female study participants of reproductive potential must have a negative serum or urine pregnancy test performed within 48 hours before infusion.) 4. Active hepatitis B or hepatitis C infection. 5. HIV/AIDS infection. 6. Uncontrolled active infection. 7. Concurrent use of systemic steroids. Recent or current use of inhaled steroids is not exclusionary. 8. Previously treatment with any gene therapy products. 9. Allergy to immunotherapy and associated drugs. 10. Patients with heart disease that is in need of treatment or with poorly controlled hypertension determined by investigators. 11. Patients with unstable or active ulceration or with gastrointestinal bleeding. 12. Patients with previous or planed organ transplantation. 13. Hyponatremia with concentration of sodium in the blood < 125 mmol/L. 14. Serum potassium (baseline) < 3.5 mmol/L (Patients can take potassium supplements to recover serum potassium level prior to participating the study). 15. Patients need anticoagulant (e.g. Warfarin or heparin). 16. Patients need long-term antiplatelet agent (Aspirin, dose > 300 mg/d; Clopidogrel, dose > 75 mg/d). 17. Any radiotherapy conducted within 4 weeks prior to blood sampling. |
Endpoint Classification: Safety Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment
| Country | Name | City | State |
|---|---|---|---|
| China | Renji Hospital, Shanghai Jiaotong University School of Medicine | Shanghai | Shanghai |
| Lead Sponsor | Collaborator |
|---|---|
| RenJi Hospital | Carsgen Therapeutics, Ltd. |
China,
| Type | Measure | Description | Time frame | Safety issue |
|---|---|---|---|---|
| Primary | Study related adverse events | Occurrence of study related adverse events, defined as NCI CTC = Grade 3 signs/symptoms, laboratory toxicities and clinical events that are possible, likely or definitely related to study treatment at any time from the infusion until week 24, including infusional toxicity and any toxicity possibly related to the CAR-CD19 T cells. | 24 weeks | Yes |
| Secondary | Primary engraftment endpoint | Duration of in vivo survival of CAR-CD19 T cells is defined as "engraftment". The primary engraftment endpoint is the # DNA vector copies per mg blood of CAR-CD19 T cells on week 4 after the first infusion. Q-PCR for CAR-CD19 T vector sequences will also be performed after infusion at 24 hours, weekly x 4, monthly x 6, and every 3 months thereafter until any 2 sequential tests are negative documenting loss of CAR-CD19 T cells. | 2 years | Yes |
| Secondary | Anti-tumor responses | Describe anti-tumor responses to CAR-CD19 T cell infusions. | 2 years | Yes |
| Secondary | Overall survival | Describe overall survival and cause of death. | 2 years | Yes |