A Study of CTA30X Cell Injection in Patients With Relapsed or Refractory CD19-positive B-line Hematological Malignancies

A Study of CTA30X Cell Injection in the Treatment of Relapsed or Refractory CD19-positive B-line Hematological Malignancies

A study of CTA30X cell injection in the treatment of relapsed or refractory CD19-positive B-line hematological malignancies

This is a single arm, open-label, single-center study. This study is indicated for relapsed or refractory CD19+ B-line hematological malignancy: B-ALL and B-NHL. the selection of dose levels and the number of subjects are based on clinical tiral of similar foreign products. 3 groups of patients will be enrolled, 36 in each group. Primary objective is to explore the safety, main consideration is dose-related safety.

Inclusion Criteria:

Inclusion criteria applicable to ALL only:

1. Male or female aged ≥ 3 and <70 years old;

2. Histologically confirmed diagnosis of CD19+ B-ALL per the US National Comprehensive Cancer Network (NCCN) Clinical Practice Guidelines for Acute Lymphoblastic Leukemia (2016.v1);

3. Relapsed or refractory CD19+ B-ALL (meeting one of the following conditions):

   1. CR not achieved after standardized chemotherapy;
   2. CR achieved following the first induction, but CR duration is ≤ 12 months;
   3. Ineffective after first or multiple remedial treatments;
   4. 2 or more recurrences;

4. The number of primordial cells (lymphoblast and prolymphocyte) in bone marrow is >5% (morphology) and/or >1% (Flow cytometry);

5. Philadelphia-chromosome-negative (Ph-) patients; or Philadelphiachromosome-positive (Ph+) patients who cannot tolerate TKI treatments or do not respond to 2 TKI treatments;

Inclusion criteria applicable to NHL only:

1. Male or female aged ≥ 18 and <70 years old;

2. Histologically confirmed diagnosis per WHO Classification Criteria for Lymphocytic Tumors 2016, including DLBCL(NOS), follicular lymphoma, Chronic lymphoblastic leukemia/small lymphoblastic lymphoma transforms DLBCL, PMBCL and high grade B cell lymphoma;

3. Relapsed or refractory DLBCL (meeting one of the following conditions):

   1. No remission or recurrence after receiving second-line or above chemotherapy;
   2. Primary drug resistance;
   3. Recurrence after autologous hematopoietic stem cell transplantation

Applicable standards for ALL and NHL:

1. Total bilirubin ≤ 51umol/L, ALT and AST ≤ 3 times of upper limit of normal, creatinine ≤ 176.8umol/L;
2. Echocardiogram shows left ventricular ejection fraction (LVEF) ≥ 50%;
3. No active infection in the lungs, blood oxygen saturation by sucking air is ≥92%;
4. Estimated survival time ≥ 3 months;
5. ECOG performance status 0 to 2;

Exclusion Criteria:

1. Patients with extramedullary lesions, except those with CNSL (CNS-1) under effective control (for ALL patients only);

2. Confirmed diagnosis of lymphoblastic crisis of chronic myeloid leukemia, Burkitt's leukemia/lymphoma per WHO Classification Criteria (for ALL patients only);

3. Patients with hereditary syndrome such as Fanconi anemia, Kostmann syndrome, Shwachman syndrome or any other known bone marrow failure syndrome (for ALL patients only);

4. Patients with intracranial extralateral lesions (cerebrospinal fluid tumor cells and/or intracranial lymphoma invasion shown by MRI) (for NHL patients only);

5. Extensive involvement of gastrointestinal lymphoma (for NHL patients only);

6. Radiotherapy, chemotherapy and monoclonal antibody within 1 week before screening;

7. Have a history of allergy to any of the components in the cell products;

8. Prior treatment with any CAR T cell product or other genetically-modified T cell therapies;

9. According to the New York heart association (NYHA) cardiac function classification criteria, Subjects with grade III or IV cardiac insufficiency;

10. Myocardial infarction, cardioangioplasty or stenting, unstable angina pectoris, or other severe cardiac diseases within 12 months of enrollment;

11. Severe primary or secondary hypertension of grade 3 or above (WHO Hypertension Guidelines, 1999);

12. Electrocardiogram shows prolonged QT interval, severe heart diseases such as severe arrhythmia in the past;

13. History of craniocerebral trauma, conscious disturbance, epilepsy, cerebrovascular ischemia, and cerebrovascular hemorrhagic diseases;

14. Patients with severe active infections (excluding simple urinary tract infection and bacterial pharyngitis).

15. History of other primary cancer, except for the following conditions:

    1. Cured non-melanoma after resection, such as basal cell carcinoma of the skin;
    2. Cervical cancer in situ, localized prostate cancer, ductal cancer in situ with disease-free survival ≥ 2 years after adequate treatment;

16. Patients with autoimmune diseases requiring treatment, patients with immunodeficiency or requiring immunosuppressive therapy;

17. Patients with graft-versus-host disease (GVHD);

18. If HBsAg positive at screening, HBV DNA copy number detected by PCR in patients with active hepatitis B > 1000 (if HBV DNA copy number≤1000, routine antiviral therapy is required after enrollment), as well as CMV, hepatitis C, syphilis infection;

19. Patients who have participated in any other clinical studies within 2 weeks prior to screening;

20. Pregnant and breast-feeding women and the subjects who are fertile and unable to take effective contraceptive measures (regardless of the gender);

21. Any situations that the investigator believes may increase the risk of patients or interfere with the results of study.