Gene-Editing breakthrough offers hope for blood disorder patients
NCT ID NCT06065189
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage study tested a new gene-edited stem cell transplant in 2 children with severe β-thalassemia, a serious blood disorder requiring lifelong transfusions. The treatment aims to help the body produce healthy red blood cells and reduce or stop the need for transfusions. Researchers monitored safety, engraftment, and blood counts to see if the approach is feasible.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Early phase 1
The earliest testing in people: a first look at safety, in a very small group.
- Participants
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2 people
The number who actually took part.
- Started
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Nov 2023
- Finished
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Aug 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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3 to 17 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
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
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Children's Hospital of Fudan University
Shanghai, Shanghai Municipality, 201102, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a single stem cell infusion rewrite the code of beta thalassemia?
- A gentler transplant may cure sickle cell and thalassemia — can the body accept donor cells?
- How does a blood disorder drug perform in everyday practice?
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- Brushing for better health: new study aims to boost oral care in kids with thalassemia
- New stem cell transplant aims to ease severe blood disorders