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Study of KTE-X19 in Minimal Residual Disease (MRD) Positive B-Cell Acute Lymphoblastic Leukemia (B-ALL)

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment60 people
  • Recruiting US sites1
  • SponsorH. Lee Moffitt Cancer Center and Research Institute
  • RegistryNCT06144606

Recruitment re-checked on ClinicalTrials.gov Oct 30, 2026. Public record; not medical advice.

Study of KTE-X19 in Minimal Residual Disease (MRD) Positive B-Cell Acute Lymphoblastic Leukemia (B-ALL): a one-minute explainerNCT061446061 min

Eligibility

Who can join

The film gives the main points. The full list below is copied from the registry; the study team makes the final decision.

  • Age18 Years to no maximum
  • SexAll
  • Healthy volunteersNo

You may be able to join if

  • Must be an adult 18 years of age or older.
  • Pathologically confirmed CD19 positive B-cell acute lymphoblastic leukemia.
  • Treatment and full recovery from induction chemotherapy, with following exceptions:
  • A. Vincristine associated grade 1 peripheral neuropathy B. Steroid/asparaginase associated diabetes and/or hypertension C. Inotuzumab/chemotherapy associated cytopenias
  • Patients must be in a complete remission with Minimal Residual Disease (MRD) following an induction regimen. MRD is defined herein as a bone marrow biopsy with fewer than 5% lymphoblasts. Complete remission implies the resolution of any extramedullary and/or Central Nervous Syndrome (CNS)-2-3/parenchymal disease.
  • Be willing and able to provide written informed consent/assent for the trial.
  • Able to adhere to the study visit schedule and other protocol requirements.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0-1.
  • Adequate renal, hepatic, pulmonary, cardiac function.
  • Adequate hematopoietic reserve.
  • Females of childbearing potential (FCBP) must have a negative serum pregnancy test at screening. A FCBP is considered when a sexually mature female:
  • has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally postmenopausal for at least 12 consecutive months.
  • Subjects of both genders of child-bearing potential must be willing to practice birth control from the time of consent through 6 months after the completion of KTE-X19 infusion.

You cannot join if

  • Diagnosis of L3 type Burkitt's lymphoma, Mixed-Lineage Leukemia (MLL) rearranged leukemia, biphenotypic leukemia, mixed phenotype acute leukemia, blast phase of chronic myeloid leukemia, or stem-cell leukemia.
  • Any active infection requiring systemic therapy, including HIV, Hepatitis B, and/or Hepatitis C.
  • History or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator (including but not limited to unstable angina, pre-existing liver disease, recurrent pancreatitis, uncontrolled diabetes, hypertriglyceridemia, pulmonary hypertension, or severe Congestive Heart Failure (CHF).
  • Recurrent thrombosis, or non-central venous catheter associated thrombosis within 3 months prior to enrollment.
  • History of myocardial infarction, cardiac angioplasty or stenting, unstable angina, or other clinically significant cardiac disease within 12 months of enrollment.
  • History or presence of any CNS disorder such as a seizure disorder, cerebrovascular ischemia/hemorrhage, dementia, cerebellar disease, any autoimmune disease with CNS involvement, posterior reversible encephalopathy syndrome (PRES), or cerebral edema.
  • Active CNS/leptomeningeal leukemia.
  • Severe comorbid conditions for which life expectancy would be <6 months.
  • Patients with active (uncontrolled, metastatic) second malignancies are excluded.
  • History of concomitant genetic syndrome associated with bone marrow failure such as Fanconi anemia, Kostmann syndrome, Shwachman-Diamond syndrome.
  • Primary immunodeficiency or history of autoimmune disease (Crohns, rheumatoid arthritis, systemic lupus) resulting in end organ injury or requiring systemic immunosuppression/systemic disease modifying agents within the last 2 years.
  • Corticosteroid therapy at a pharmacologic dose (> 5 mg/day of prednisone or equivalent doses of other corticosteroids) and other immunosuppressive drugs must be avoided for 7 days prior to enrollment.
  • Presence of any indwelling line or drain (percutaneous nephrostomy tube, indwelling Foley catheter, biliary drain, or pleural/peritoneal/pericardial catheter). Ommaya reservoirs and dedicated central venous access catheters such as a Port-a-Cath or Hickman catheter are permitted.
  • Live vaccine ≤ 4 weeks prior to enrollment.
  • Pregnant, breastfeeding, or expecting to conceive or father children within the projected duration of the trial, starting with the screening visit through 3 months after the last dose of trial treatment.

The treatment

How it is intended to work

This is how the treatment is meant to work. Whether it helps, and how safe it is, is what this trial is testing.

Treatments listed in the registry

  • Tecartus (Drug): Tecartus is a CD19 directed CAR T-cell therapy that utilizes CD28 costimulatory and CD3 zeta stimulatory domains. Tecartus is manufactured from purified autologous T-cells via retroviral transduction with a median time to product release of 13 days.

The study

Treatment groups

Na · Single Group · masking: None

Autologous CAR T-cell immunotherapy (Experimental)

Tecartus will be delivered at a target dose of 1x106 cells / kg. For those >100 kg, a flat dose of 1 x108 cells will be used. Tecartus will be administered on day 0, following 1 day of rest from conditioning chemotherapy.

Goals

What the study measures

Main goals

  • Relapse Free Survival (RFS) (Up to 5 years)

Other goals

  • Molecular Response Rate
  • Clinical Relapse Rate
  • Molecular Relapse Rate
  • Duration of Response (DOR)
  • Molecular Relapse Free Survival (MRFS)
  • Overall Survival
  • Rate of Cytokine Release Syndrome (CRS)
  • Rate of Immune effector cell-associated neurotoxicity syndrome (ICANS)

Planned enrollment: 60 (estimated).

Where

Recruiting US sites

  • Moffitt Cancer Center, Tampa, Florida

Site status as of Oct 30, 2026. Check the live record before contacting a site.

Sources

Where this comes from

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Sep 24, 2026. Public record; not medical advice.

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