Clinical trial
Evaluation and Promotion of Key Technologies of Base-edited Autologous Hematopoietic Stem Cell Transplantation in Treating Patients With β-thalassemia Major
Name
CS-101-03
Description
The goal of this open label, single-arm clinical study is to learn about the safety and efficacy of base-edited autologous hematopoietic stem cell transplantation(CS-101) in treating patients with β-thalassemia major.
Trial arms
Trial start
2023-11-07
Estimated PCD
2024-10-16
Trial end
2024-12-31
Status
Recruiting
Phase
Early phase I
Treatment
CS-101 injection
Autologous CD34+ hematopoietic stem cell suspension modified by in vitro base editing technique
Arms:
CS-101 injection
Size
5
Primary endpoint
Frequency and severity of adverse events(AEs) as assessed by CTCAE v5.0
From signing informed consent to 180 days post-CS-101 infusion
Occurrence of engraftment
within 42 days post-CS-101 infusion
Time to neutrophil and platelet engraftment
Days post-CS-101 infusion
Occurrence of transplant-related death
baseline to 100 days post-CS-101 infusion
Occurrence of all-cause death
From signing informed consent to 180 days post-CS-101 infusion
Occurrence of achieving transfusion reduction for at least 3 consecutive months
From 3 months post -CS-101 infusion to 3 months post -CS-101 infusion
Eligibility criteria
Inclusion Criteria:
* 3 to 17 years old(inclusive) male or female subjects at the time of informed consenting
* Diagnosis of β-thalassemia, genotypes include but are not limited to β+β0, βEβ0, β0β0, etc
* Generally in good condition, Karnofsky performance score≥60 points for subjects≥16 years old at the time of autologous hematopoietic stem cell collection, or Lansky Play-Performance score≥60 points for subjects under 16 years old, or equivalent clinical evaluation as the investigator site's common practice
* For female subjects of childbearing potential: use effective contraceptive measures for at least 1 month prior to screening and agree to continue using such measures for contraception throughout the study
* For male subjects who have a potential ability to father a child: use condoms or other methods continuously from the start of mobilization to ensure effective contraception for sexual partners during the study period
Exclusion Criteria:
* Treatment with other investigational medications or other experimental interventions 30 days prior to signing informed consent or within 6 half-lives of the drug, whichever is longer.
* Subjects who have received or are receiving thalidomide and/or Luspatercept, when their drug-drug interaction on the efficacy and safety of CS-101 cannot be ruled out, unless at least there are 3 test results showing the total hemoglobin level before transfusion is below 9g/dL in the past 6 months before screening.
* Previously received allogeneic hematopoietic stem cell transplantation or gene(edited) therapy.
* Subjects have available related fully matching donors and are eligible and prepared for allogeneic hematopoietic stem cell transplantation.
* Subjects with coexisting α-thalassemia and more than 2 deletions or non-deletional mutations in the α-globin chain coding genes.
* Known to be allergic to drugs used during autologous hematopoietic stem cell transplantation (including but not limited to granulocyte colony-stimulating factor, busulfan, dextran), excipients(such as dimethyl sulfoxide), or instruments(such as intravenous catheters) as determined by the investigator are deemed unsuitable to participate in this study.
* Those with active infections, including but not limited to: HIV, hepatitis B, hepatitis C, cytomegalovirus, Epstein-Barr virus and treponema pallidum test positive, or known tuberculosis, parasitic infection, etc. who are judged by the investigator to be unsuitable to participate in this study
* Echocardiography results with ejection fraction below 45%
* Subjects who are febrile (temperature over 37.3° C) should be held back from enrolment.
* Advanced liver disease, defined as aspartate aminotransferase (AST), alanine aminotransferase (ALT) \>3 × upper limit of normal (ULN) or baseline International Normalized Ratio (INR) \>1.5 × ULN
* MRI during the screening period showed heavy iron overload and is judged by the investigator to be unable to participate in the study.
* Patients with past/present history of cancer
* Known neurological disorders, psychological problems or mental illness, and is judged by the investigator to be unable to cooperate with the study procedures
* Known history of uncontrolled epileptic seizures and is judged by the investigator to be unfit to participate in this study
* Known history of other serious cardiovascular, pulmonary, renal diseases, digestive tract conditions, liver diseases and / or other conditions, etc., and are judged by the investigator to be intolerable or inappropriate for autologous hematopoietic stem cell mobilization, collection, and myeloablative conditioning and infusion
* Pregnant or lactating women
Protocol
{'studyType': 'INTERVENTIONAL', 'phases': ['EARLY_PHASE1'], 'designInfo': {'allocation': 'NA', 'interventionModel': 'SINGLE_GROUP', 'primaryPurpose': 'TREATMENT', 'maskingInfo': {'masking': 'NONE'}}, 'enrollmentInfo': {'count': 5, 'type': 'ESTIMATED'}}
Updated at
2024-05-01
1 organization
1 product
1 indication
Organization
Children's Hospital of Fudan UniversityProduct
CS-101Indication
Beta Thalassemia