ClinicalTrials.gg
RecruitingNCT06144606Updated Sep 25, 2026

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

A Phase 2 interventional study of Tecartus in B-Cell Lymphoblastic Leukemia and Acute Lymphoblastic Leukemia, sponsored by H. Lee Moffitt Cancer Center and Research Institute. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-25.

Sponsored by H. Lee Moffitt Cancer Center and Research Institute · Phase 2, Interventional, and Treatment

From the registry’s dates

  • Started Dec 2023; still recruiting 2 years 10 months later.
Updated Sep 25, 2026Primary completion movedStudy completion movedGo to Updates ↓
Phase
Phase 2
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Study summary

This is a Phase 2 Study is to determine the efficacy and safety rate of B-Cell Acute Lymphoblastic Leukemia (B-ALL) participants in remission with minimal residual disease (MRD) after KTE-X19 CAR T-cell therapy

02

Conditions studied

  • B-Cell Lymphoblastic Leukemia
  • Acute Lymphoblastic Leukemia
03

In context

Burkitt Lymphoma

976 studies on the registry are indexed under Burkitt Lymphoma; 159 are open to participants now.

This study's planned enrollment of 60 is above the median of 36 across 765 interventional studies indexed under Burkitt Lymphoma.

Browse Burkitt Lymphoma studies →

Lead sponsor

H. Lee Moffitt Cancer Center and Research Institute is the lead sponsor of 540 studies on the registry; 75 are open to participants now.

Of its 99 completed or terminated interventional studies of FDA-regulated products, 57 (58%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Must be an adult 18 years of age or older.
  • 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. /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 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 /assent for the trial.
  • Able to adhere to the study visit schedule and other protocol requirements.
  • (ECOG) performance status 0-1.
  • Adequate renal, hepatic, pulmonary, cardiac function.
  • Adequate hematopoietic reserve.
  • Females of (FCBP) must have a negative serum pregnancy test at screening. A FCBP is considered when a sexually mature female:

    1) has not undergone a hysterectomy or bilateral oophorectomy; or 2) has not been naturally for at least 12 consecutive months.

  • Subjects of both genders of child-bearing potential must be willing to practice from the time of consent through 6 months after the completion of KTE-X19 infusion.

Exclusion criteria

Exclusion Criteria:

  • 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 , , and/or .
  • 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 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 disease with CNS involvement, posterior reversible encephalopathy syndrome (PRES), or cerebral edema.
  • Active CNS/ leukemia.
  • Severe comorbid conditions for which would be \<6 months.
  • Patients with active (uncontrolled, ) second 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 /systemic disease modifying agents within the last 2 years.
  • 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.
  • ≤ 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.
Terms in these criteria, in plain language(19)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Leptomeningeal disease

Cancer that has spread to the leptomeninges, the thin layers covering the brain and spinal cord, and the fluid between them. It is not the same as brain metastases.

Criteria often treat it separately, and many studies leave it out even where treated brain metastases are allowed.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Autologous CAR T-cell immunotherapy

    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.

    Drug: Tecartus

Interventions

  • 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.

    Also known as: Brexucabtagene autoleucel, KTE-X19

06

What researchers measure

Primary outcomes

  1. Relapse Free Survival (RFS)

    The primary endpoint is RFS, defined as the time from KTE-X19 infusion until clinical relapse or death from any cause. Patients proceeding to subsequent anti-cancer therapy, inclusive of allogeneic transplantation, without relapse will be censored in this analysis. Surviving patients not meeting criteria for relapse by the analysis data cutoff date will be censored at their last evaluable disease assessment date.

    Time frame: Up to 5 years

Secondary outcomes

  1. Molecular Response Rate

    Measured as converting to a complete molecular remission following CAR T-cell immunotherapy. Molecular remission is defined as having fewer than 0.0001% clonotype sequences per one million nucleated cells.

    Time frame: Up to 5 years

  2. Clinical Relapse Rate

    Measured as \>5% lymphoblasts in the bone marrow and/or the emergence of extramedullary leukemia.

    Time frame: Up to 5 years

  3. Molecular Relapse Rate

    Measured as achieving complete molecular remission at day 28 and followed until 5 years from infusion or the emergence of detectable disease. Molecular remission is defined as having fewer than 0.0001% clonotype sequences per one million nucleated cells.

    Time frame: Up to 5 years

  4. Duration of Response (DOR)

    Measured as time from enrollment until clinical relapse or death. In the case of death without documented relapse, patients will be censored.

    Time frame: Up to 5 years

  5. Molecular Relapse Free Survival (MRFS)

    Measured by complete molecular remission at day 28 and followed until 5 years from infusion or the emergence of detectable disease. Molecular remission is defined as having fewer than 0.0001% clonotype sequences per one million nucleated cells.

    Time frame: Up to 5 years

  6. Overall Survival

    Measured as time from date of enrollment to date of death from any cause.

    Time frame: Up to 5 years

  7. Rate of Cytokine Release Syndrome (CRS)

    Participants rate of developing Cytokine Release Syndrome (CRS)

    Time frame: Up to 5 years

  8. Rate of Immune effector cell-associated neurotoxicity syndrome (ICANS)

    Participants rate of developing Immune effector cell-associated neurotoxicity syndrome (ICANS).

    Time frame: Up to 5 years

07

Study locations

1 of 1 sites recruiting
  • Moffitt Cancer Center
    Tampa, Florida 33612, United States
    Recruiting
    • Bijal D. Shah, MD · Principal investigator
    • Rawan Faramand, MD · Sub investigator
    • Leidy Isenalumhe, MD · Sub investigator
    • Frederick Locke, MD · Sub investigator
08

Updates

1 registry update since Sep 25, 2026
Primary completion
Nov 15, 2028→Jul 29, 2031
Sep 25, 2026
Study completion
Nov 15, 2028→Jul 29, 2031
Sep 25, 2026
Show all 1 update
  1. Sep 25, 2026
    Primary completion Nov 15, 2028→Jul 29, 2031
    Study completion Nov 15, 2028→Jul 29, 2031
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT06144606
Responsible party
Sponsor
First posted
Nov 22, 2023
Start date
Dec 26, 2023
Primary completion
Jul 29, 2031 (estimated)
Completion
Jul 29, 2031 (estimated)
Last update
Sep 25, 2026

Study contacts

Connor Tate
Contact
ICETtrials@moffitt.org
813-745-3783
Bijal D. Shah, MD
principal investigator · Moffitt Cancer Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Brexucabtagene autoleucel

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