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NCT06559189
Phase I Dose Escalation and Preliminary Efficacy Study of Bispecific CD19 and CD22 Chimeric Antigen Receptor Co-Expressing T Cells (CD19x22 CAR T) in Pediatric Patients With Relapsed and/or Refractory B-Cell Acute Lymphoblastic Leukemia (B-ALL)
Phase 1 trial testing CD19x22 CAR T in B-cell Acute Lymphoblastic Leukemia in 53 participants. Currently enrolling.
1 December 2028
Quick facts
| Lead sponsor | University of Colorado, Denver |
|---|---|
| Phase | Phase 1 |
| Status | Recruiting now |
| Study type | INTERVENTIONAL |
| Allocation | non randomized |
| Design | parallel |
| Masking | none |
| Primary purpose | treatment |
| Enrollment | 53 |
| Start date | 27 September 2024 |
| Primary completion | 1 December 2028 |
| Estimated completion | 1 December 2029 |
| Sites | 1 location across United States |
Drugs / interventions tested
- CD19x22 CAR T — full drug profile →
Conditions studied
- B-cell Acute Lymphoblastic Leukemia — all drugs for B-cell Acute Lymphoblastic Leukemia →
Sponsor
University of Colorado, Denver
Who can join
Adults 3 Months to 30, any sex, with B-cell Acute Lymphoblastic Leukemia. Patients with the condition only — healthy volunteers not accepted.
What's being measured
Primary outcomes are the specific endpoints the trial is designed to prove or disprove.
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Safety Measured by Dose Limiting Toxicities (DLTs)
Time frame: Infusion date to 28 days post-infusion
The safety of the administering this bispecific CD19/CD22-directed CAR T cell product will be measured by assessing the DLTs in each disease burden cohort in a Bayesian optimal interval (BOIN) design to determine the MTD
Sponsor's own description
This study will evaluate the safety and tolerability of administering a novel bispecific CD19/CD22-directed CAR T cell product (CD19x22) for the treatment of relapsed or refractory pediatric B-ALL.
Publications & conference data
3 peer-reviewed publications reference this trial (live from Europe PMC):
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Mechanisms of Resistance to CAR T-Cells and How to Overcome Them.
Legato L, Bisio M, Fasano F, Benevolo Savelli C, et al · · 2025 · cited 3× · PMID 40981226 · DOI 10.3390/mps8050108 -
Advances in ligand-targeted nanodelivery systems for leukemia therapy: from single- to dual-ligand strategies.
Hu M, He C, Hao J, Qi N, et al · · 2026 · PMID 41772642 · DOI 10.1186/s12967-026-07966-w -
Increased NFAT activity with dual CAR stimulation in CD19xCD22 CAR T-cells is associated with decreased exhaustion and improved survival.
Rankin AW, Pham-Danis C, Novak AJ, Danis E, et al · · 2025 · PMID 41238217 · DOI 10.1136/jitc-2025-011971
Verify or expand the search:
- PubMed search for NCT06559189
- Europe PMC full search
- ASCO Meeting Library
- ESMO Meeting Library
- bioRxiv preprints
- medRxiv preprints
- Google Scholar
Related trials
Other recruiting trials for B-cell Acute Lymphoblastic Leukemia
Currently open trials in the same condition.
- NCT06326008 — Safety, Tolerability, and Pharmacokinetics of Donor-derived CD19 CAR Therapy Bridged Allo-HSCT and Sequential Donor-deri · Phase 1 · recruiting
- NCT07153796 — A Phase 2 Study to Assess the Safety and Efficacy of Subcutaneous Blinatumomab in Combination With Low Intensity Chemoth · Phase 2 · recruiting
- NCT06863259 — Study of Inotuzumab Ozogamicin, Venetoclax, and Dexamethasone for Relapsed B-cell ALL · Phase 1 · recruiting
- NCT06793241 — Donor Derived CD19 CAR-T Cells in the Treatment of R/R B-cell Acute Lymphoblastic Leukemia · EARLY_PHASE1 · recruiting
- NCT06208735 — CLIC-2201 for the Treatment of Relapsed/Refractory B Cell Malignancies · Phase 1 · recruiting
Other University of Colorado, Denver trials
Trials by the same sponsor.
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Verify against primary sources
- ClinicalTrials.gov — authoritative US registry record
- WHO ICTRP — international registry index
- EU Clinical Trials Register
- Sponsor press releases (Google)
- Trial protocol + status: ClinicalTrials.gov NCT06559189 (US National Library of Medicine, public domain)
- Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
- Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
- Sponsor: as reported to ClinicalTrials.gov by University of Colorado, Denver
- Last refreshed: 21 November 2025
Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT06559189.
Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing