New cell therapy offers hope for tough anemia cases
NCT ID NCT07453836
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage trial tests a new cell therapy called YTS109 for people with autoimmune hemolytic anemia that hasn't improved after at least three prior treatments. The therapy uses specially engineered immune cells to target and destroy the faulty cells causing the anemia. The study aims to check if the treatment is safe and works, with 13 participants receiving different doses. A second infusion may be possible if needed.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 13 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Mar 2026
An estimate. Start dates often move.
- Expected to finish
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Mar 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
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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18 to 60 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: * 18 ≤ Age ≤ 60 years, regardless of gender. * A definitive diagnosis of Autoimmune Hemolytic Anemia (AIHA) or Evans Syndrome \[including warm antibody-type, mixed warm-cold antibody-type, and cold antibody-type hemolytic anemia (cold agglutinin disease)\] has been established, with diagnostic criteria referenced from the Chinese Clinical Practice Guidelines for the Diagnosis and Treatment of Autoimmune Hemolytic Anemia in Adults (2023 Edition). * Patients who have undergone at least three failed treatment attempts, whose anemia symptoms (hemoglobin \< 100 g/L) persist despite conventional therapy, and who remain unresponsive or experience recurrence after disease remission. Definition of Conventional Therapy: Treatment with glucocorticoids and/or rituximab, combined with any one or more of the following interventions: splenectomy, cyclosporine, cyclophosphamide, azathioprine, mycophenolate mofetil, bendamustine, fludarabine, bortezomib, or other pharmacological agents, as well as biologic agents including anti-CD38 monoclonal antibodies, BTK inhibitors, Syk inhibitors, complement inhibitors, etc. * Adequate Organ Function: 1. Liver Function: Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ≤ 3 × upper limit of normal (ULN); Total bilirubin ≤ 2.0 × ULN (excluding Gilbert syndrome, where total bilirubin ≤ 3.0 × ULN). 2. Renal Function: Creatinine clearance (CrCl) ≥ 60 ml/minute (calculated using the Cockcroft-Gault formula). 3. Oxygen Saturation (SpO₂): ≥ 92%. * ECOG performance status≤2. * Subjects of childbearing potential will be required to follow contraception requirements from the time of enrollment until the end of the 12-month safety follow-up period. * The subjects voluntarily participate in the study, sign the informed consent, demonstrate good compliance, and cooperate with follow-up. Exclusion Criteria: * Diagnosis of lymphoproliferative tumor * Other hereditary or acquired hemolytic diseases (Secondary AIHA caused by drugs or infection) * The platelet count in peripheral blood\<30×10\^9/L * Pregnant or breast-feeding subjects * Receive any of the following treatments within the specified time before cell infusion: a.anti-CD20 monoclonal antibodies \<12 weeks, b.sutimlimab or other marketed biologics \<5 half-lives,c.plasma exchange \<4 weeks, d.post-splenectomy \<12 weeks, e. BTK inhibitors, anti-CD38 monoclonal antibody, Syk inhibitors, BAFF inhibitors \< 5 half-lives. * Previously received organ or stem cell transplantation * History of new thrombosis or organ infarction in the past 6 months * Diagnosis of the active stage of the connective tissue disease. * Have active infections, such as sepsis, bacteremia, fungemia, uncontrolled pulmonary infection and active tuberculosis, etc. * Positive hepatitis B surface antigen (HBsAg) or hepatitis B e antigen (HBeAg); positive hepatitis B e antibody (HBe-Ab) or hepatitis B core antibody (HBc-Ab), and the HBV-DNA copy number is above the lower limit of the measurable capacity; positive hepatitis C (HCV) antibody; positive human immunodeficiency virus (HIV) antibody; positive syphilis test. * Underwent major surgery within 4 weeks before screening, as determined by the investigator to be unsuitable for enrollment. * Have malignant tumors within 5 years before enrollment, except tumors with negligible risk of metastasis or death and curable tumors, such as adequately treated cervical carcinoma in situ, cutaneous basal cell carcinoma, etc. * Have any of the following cardiovascular diseases: a.Left ventricular ejection fraction (LVEF) ≤45%, b. presence of active heart disease or congestive heart failure (New York Heart Association \[NYHA\] Class III or IV)), c.severe arrhythmias requiring treatment, d.have myocardial infarction, bypass surgery, or stent placement within the 6 months before the study, e.other heart diseases judged by the researcher to be unsuitable for enrollment. * Have a history of live attenuated vaccines within 6 weeks before enrollment. * Have a history of epilepsy or other active central nervous system diseases. * Have an allergy to the ingredients of the medicine used in this study. * Previously received CAR-T cell therapy. * Patients considered to be ineligible for the study by the investigator for reasons other than the above.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beijing GoBroad Boren Hospital
Beijing, China
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Other studies related to the condition(s) this trial covers.
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- Can a new drug calm the immune System's attack on blood cells?
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- Cheap drug combo may tame tough anemia
- Scientists hunt for genetic roots of rare childhood blood disorder