A Feasibility and Safety Study of Dual Specificity CD19 and CD22 CAR-T Cell Immunotherapy for CD19+CD22+ Leukemia
Public ClinicalTrials.gov record NCT03330691. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Pediatric and Young Adult Leukemia Adoptive Therapy (PLAT)-05: A Phase 1 Feasibility and Safety Study of Dual Specificity CD19 and CD22 CAR-T Cell Immunotherapy for CD19+CD22+ Leukemia
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Patients with relapsed or refractory leukemia often develop resistance to chemotherapy and some patients who relapse following CD19 directed therapy relapse with CD19 negative leukemia. For this reason, the investigators are attempting to use T-cells obtained directly from the patient, which can be genetically modified to express two chimeric antigen receptors (CARs). One is to recognize CD19 and the other is to recognize CD22, both of which are proteins expressed on the surface of the leukemic cell in patients with CD19+CD22+ leukemia. The CAR enables the T-cell to recognize and kill the leukemic cell through recognition of CD19 and CD22. This is a phase 1 study designed to determine the safety of the CAR+ T-cells and the feasibility of making enough to treat patients with CD19+CD22+ leukemia.
Study identification
- NCT ID
- NCT03330691
- Recruitment status
- Active, not recruiting
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 78 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- Up to 30 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Nov 3, 2017 (Actual)
- Primary completion
- Sep 13, 2023 (Actual)
- Completion
- Mar 3, 2035 (Estimated)
- Last update posted
- Dec 15, 2025
2017 – 2035
United States locations
- U.S. sites
- 4
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Children's Hospital Los Angeles | Los Angeles | California | 90027 | — |
| Children's National Medical Center | Washington D.C. | District of Columbia | 20010 | — |
| Riley Hospital for Children | Indianapolis | Indiana | 46202 | — |
| Seattle Children's Hospital | Seattle | Washington | 98105 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT03330691, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 15, 2025 · Synced Oct 24, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT03330691 live on ClinicalTrials.gov.