Combining two CAR T cell therapies for treating advanced B-ALL in children
Official title: Use of Autologous Anti-CD22 CAR T Cells (CART22-65s) Co-administered With Humanized Anti-CD19 CAR T Cells (huCART19) in Children and Young Adults With Relapsed or Refractory B-ALL
Run by Children's Hospital of Philadelphia · NCT05674175 · Data updated 2026-11-12
This study is testing if giving two types of CAR T cell therapies together can help children and young adults with advanced B-cell leukemia who haven't responded to other treatments.
Quick facts
| Phase | Phase1; Phase2 |
|---|---|
| Study type | Interventional |
| Ages | Any age to 29 Years |
| Sex | All |
| Enrollment | 93 (estimated) |
| Sponsor | Children's Hospital of Philadelphia Academic / other |
| Drugs / interventions | CAR T, CART |
| Locations | 1 site (Philadelphia, Pennsylvania) |
| Status | Recruiting |
| Started | January 25, 2023 |
| Main results expected | July 1, 2028 |
| Study ends | July 1, 2029 |
| Registry record updated | March 27, 2026 |
| Trial ID | NCT05674175 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are children and young adults aged 0-29 years with relapsed or refractory B-ALL or those with poor responses to prior B cell-directed therapies.
✕Probably not a fit
Patients without documented CD19+ and/or CD22+ disease or those with significant comorbidities may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study evaluates the safety and efficacy of co-administering two CAR T cell products, huCART19 and CART22-65s, in children with advanced B-cell Acute Lymphoblastic Leukemia (B-ALL). The approach aims to address the common issue of disease relapse by targeting both CD19 and CD22 antigens, which are often involved in treatment failure. By utilizing next-generation CAR T cell therapies, the study seeks to enhance patient outcomes for those who have not responded to previous treatments. The trial will include patients aged 0-29 years with documented CD19+ and/or CD22+ disease.
Why it matters
Potential benefit: If successful, this approach could significantly improve survival rates and reduce relapse in pediatric patients with advanced B-ALL.
How similar studies have gone: Other studies have shown promise with CAR T cell therapies, but this specific combination approach is novel and untested.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. Signed informed consent form 2. Patients with documented CD19+ and/or CD22+ ALL/LLy: 1. Cohort A: Patients with relapsed or refractory ALL/LLy: 2. Cohort B: Patients with poor response to prior B cell directed engineered cell therapy 3. Patients with prior or current history of Central Nervous System 3 disease will be eligible if Central Nervous System disease is responsive to therapy 4. Documentation of CD19 and/or CD22 tumor expression in bone marrow, peripheral blood, Cerebrospinal fluid, or tumor tissue by flow cytometry at the time of last detectable disease. If the patient has experienced a relapse after CD19-directed and/or CD22-directed therapy, flow cytometry should be evaluated after this therapy to demonstrate CD19 and/or CD22 expression. 5. Age 0-29 years 6. Adequate organ function 7. Adequate performance status defined as Lanksy or Karnofsky performance score ≥50. 8. Subjects of reproductive potential must agree to use acceptable birth control methods. Exclusion Criteria: 1. Active hepatitis B or active hepatitis C 2. HIV infection 3. Active acute or chronic Graft Vs. Host Disease requiring systemic therapy 4. Concurrent use of systemic steroids or immunosuppression at the time of cell infusion or cell collection, or a condition, in the treating physician's opinion, that is likely to require steroid therapy or immunosuppression during collection or after infusion. Steroids for disease treatment at times other than cell collection or at the time of infusion are permitted. Use of physiologic replacement hydrocortisone or inhaled steroids is permitted as well. 5. Central nervous system disease that is progressive on therapy, or with Central nervous system parenchymal lesions that might increase the risk of central nervous system toxicity. 6. Pregnant or nursing (lactating) women 7. Uncontrolled active infection
Where it's running
-
Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States Recruiting
Study contacts
- Principal investigator: Regina Myers, MD — Children's Hospital of Philadelphia
- Study coordinator: CART Nurse Navigator
- Email: CARTNurseNavigator@chop.edu
- Phone: 445-942-5891
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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CD19 and CD22 in vivo CAR-T therapy for relapsed/refractory B-ALL
This study tests a one-of-a-kind in vivo CAR-T treatment that targets CD19 first and then CD22 in adults with relapsed or refractory B-ALL to see if it is safe and possibly effective.
-
Umbilical Cord Blood CAR-T Cells Targeting CD19 and CD22 for relapsed/refractory B-ALL
This phase 1 study tests whether dual-target cord blood-derived CAR-T cells against CD19 and CD22 are safe and tolerable in adults with relapsed or refractory B-cell ALL.
-
In Vivo CD19/CD20 CAR T-Cell Therapy for Relapsed or Refractory B-Cell Lymphoma
This early-phase trial tests a one-time in vivo CAR T-cell therapy (SL1617) for people with relapsed or refractory B-cell lymphoma to see if it is safe and tolerable.
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Dual-target CD22/CD19 CAR-T consolidation after first remission in high-risk B-ALL
This test will try a dual-target CD22/CD19 CAR-T cell treatment as consolidation for patients with high-risk B-cell acute lymphoblastic leukemia who are in their first remission.
-
CD22/CD19 CAR-T consolidation for adults with standard-risk B-ALL
This study will try dual-target CD22/CD19 CAR-T cell therapy as a consolidation treatment for adults with standard-risk B-cell acute lymphoblastic leukemia who are in first remission.
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CART123 Cells With or Without Ruxolitinib for Relapsed/Refractory AML
This trial tests CART123 cells alone or with ruxolitinib to see if they help kids and young adults with relapsed or treatment‑resistant AML.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.