Anti-BCMA CAR T-Cell Therapy for R/R ITP

  • End date
    Jun 30, 2023
  • participants needed
  • sponsor
    The First Affiliated Hospital of Soochow University
Updated on 19 April 2022


This is a prospective, single-center, open-label, single-arm study, to evaluate the efficacy and safety of Anti-BCMA chimeric antigen receptor T cell therapy(BCMA CAR-T)for patients with relapse/refractory Immune thrombocytopenia(R/R ITP).


Immune thrombocytopenia (ITP) is a disorder that can lead to easy or excessive bruising and bleeding. Approximately two-thirds of patients achieve remission after/during first-line therapies. However, the other part of patients could not achieve durable remission or even refractory to initial treatments. Those cases, known as relapse/refractory Immune thrombocytopenia (R/R ITP), undergo the heavy burden of disease which decreases the quality of life. Lots of pathogeneses take part in the occurrence of R/R ITP, and the most important one of them is antibody-mediated immune platelet destruction. As far as it is known,human platelet autoantibodies are mainly secreted by plasma cells, especially long-lived plasma cells. Researchers want to explore that can BCMA CAR-T help R/R ITP patients increase platelet count, reduce bleeding episodes and the dose of concomitant medications.

Condition ITP
Treatment autologous anti-BCMA chimeric antigen receptor T cells
Clinical Study IdentifierNCT05315778
SponsorThe First Affiliated Hospital of Soochow University
Last Modified on19 April 2022


Yes No Not Sure

Inclusion Criteria

Refractory ITP defined according to the recent consensual criteria ( 'Chinese guideline on the diagnosis and management of adult primary immune thrombocytopenia (version 2020)'), or relapse ITP defined as ITP patients who have responded to first-line therapy (glucocorticoids or immunoglobulins) and anti-CD20 monoclonal antibody, but cannot maintain the response
Ages 18-65 years inclusive
Adequate venous access for apheresis or venous blood and no other contraindications for leukocytosis
Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
Subjects should have full capacity for civil conduct, understand necessary information,sign the informed consent form voluntarily,and have good corporation with the content of this research protocol

Exclusion Criteria

Secondary ITP
Patients with a known history or prior diagnosis of arterial thrombosis (such as cerebral thrombosis, myocardial infarction, etc.), or comorbidity of venous thrombosis (such as deep vein thrombosis, pulmonary embolism), or are using anticoagulant/antiplatelet drug at the beginning of trial
Patients with a known history or prior diagnosis of serious cardiovascular disease
Patients with uncontrolled infection, organ dysfunction or any uncontrolled active medical disorder that would preclude participation as outlined
Patients with malignancy or history of malignancy
Failed T cell expansion test
During screening, hemoglobin <100g/L; absolute value of neutrophil count <1.5×10^9/L
During screening, serum creatinine concentration > 1.5x the upper limit of the normal range, total bilirubin > 1.5x the upper limit of the normal range, alanine aminotransferase and aspartate aminotransferase > 3x the upper limit of the normal range, Left ventricular ejection fraction ≤ 50% by echocardiography, Pulmonary function ≥ grade 1 dyspnea (CTCAE v5.0), blood oxygen saturation<91% without oxygen inhalation
Prothrombin time (PT) or prothrombin time-international normalized ratio (PT-INR) or activated partial thromboplastin time (APTT) exceeding 20% of the normal reference range; or a history of coagulation abnormalities other than ITP
Either HIV antibody or syphilis antibody is positive; hepatitis C antibody is positive and the detection of HCV-RNA exceeds the laboratory test upper reference limit; hepatitis B surface antigen is positive and the detection of HBV-DNA exceeds the laboratory test upper reference limit
Participated in other clinical studies within 3 months before this CAR-T cell infusion
Patients is pregnant or breastfeeding, or planning pregnancy
Patients is fertile and the investigator determines the case is inappropriate to participate
History of severe drug allergy or known allergy to CAR-T treatment related drugs
Suspected or established alcohol, drug or drug abuse
The investigator judges that it is not suitable to participate in this trial
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