This is a Phase I/II clinical trial of gene therapy for treating Fanconi anemia using a self-inactivating lentiviral vector to functionally correct the defective gene. The objectives are to evaluate the safety and efficacy of the gene transfer clinical protocol.
Fanconi anemia is a rare, inherited disease that is caused by a gene defect and that primarily affects an individual's bone marrow, resulting in decreased production of blood cells. The major problem for most patients is aplastic anemia, the blood counts for red blood cells, white blood cells, and platelets are low. In addition, some patients have physical defects usually involving the skeleton and kidneys. Fanconi anemia is typically diagnosed in childhood, and there is a high fatality rate. Hematopoietic stem cell transplantation (HSCT) is a common treatment for Fanconi anemia. However, there are many risks associated with HSCT including rejection of the transplanted cells and graft-versus-host disease. The primary objectives are to evaluate the safety of the self-inactivating lentiviral vector, the ex vivo gene transfer clinical protocol and the efficacy of immune reconstitution in patients overcoming immune abnormalities present at the time of treatment, assessment of gene correction efficiency, and finally the long-term correction of Fanconi anemia associated disease symptoms.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
10
Infusion for 5x10\^6\~1x10\^7 per kilogram of body weight of gene-modified cells; or more infusions depending on the circumstances
Capital Institute of Pediatrics affiliated Children's hospital
Beijing, Beijing Municipality, China
RECRUITINGBeijing Children's Hospital
Beijing, Beijing Municipality, China
RECRUITINGShenzhen Geno-immune Medical Institute
Shenzhen, Guangdong, China
RECRUITINGSafety in patients using CTCAE version 4.0 standard to evaluate the level of adverse events
Physiological parameter (measuring cytokine response, fever, symptoms)
Time frame: 6 months
Treatment responses
Blood routine indexes will be obtained before and after treatment. Objective response, such as complete response (CR), partial response (PR), stable disease (SD), or progressive disease (PD) will be assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 criteria
Time frame: 1 year
Quality of life
Quality of life will be measured using the Functional Assessment of Cancer Therapy-General (FACT-G) before and after treatment.
Time frame: 1 year
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