CAR T-cell Therapy Directed to CD70 for Pediatric Patients With Hematological Malignancies

January 22, 2026 updated by: St. Jude Children's Research Hospital

The study participant has one of the following blood cancers: acute myelogenous leukemia (AML)/myelodysplastic syndrome (MDS), acute lymphoblastic leukemia (B-ALL, T-ALL) or Lymphoma. Your cancer has been difficult to treat (refractory) or has come back after treatment (relapse).

Primary Objective

To determine the safety and maximum tolerated dose of intravenous infusions of escalating doses of CD70-CAR T cells in patients (≤21 years) with recurrent/refractory CD70+ hematological malignancies after lymphodepleting chemotherapy.

Secondary Objectives

To evaluate the antileukemic activity of CD70-CAR T cells. We will determine the anti- leukemic activity of the CD70-CAR T cells in the bone marrow and in the treatment of extramedullary disease.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The primary interventions are a lymphodepleting chemotherapy regimen (fludarabine and cyclophosphamide), followed by a single autologous infusion of CD70-CAR T cells.

Phase I study evaluating three (3) dose levels of CD70-CAR T cells.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
18

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Tennessee
      • Memphis, Tennessee, United States, 38105
        • Recruiting
        • St. Jude Children's Research Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child
  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria

Age ≤21 years old

Relapsed/refractory CD70+ hematological malignancy

Relapsed disease: Patients developing recurrent disease after a prior complete remission (CR)

Refractory disease: Patients with persistent disease despite 3 cycles of induction chemotherapy.

  • Relapsed/refractory CD70+ AML or MDS:

    • Relapsed disease that is CD70 positive
    • Refractory disease that is persistent despite 3 cycles of chemotherapy

  • Relapsed/refractory CD70+ B-cell ALL:

    • Relapsed disease that is CD70 positive and CD19 negative/dim or patients otherwise ineligible for CD19-directed therapies including:
    • Patients in 2nd or greater relapse
    • Patients with relapse after allogeneic HSCT

  • Relapsed/refractory CD70+ T-cell ALL:

    • Relapsed /refractory disease that is CD70 positive

  • Mixed Phenotype Acute Leukemia (MPAL):

    • Relapsed/refractory that is CD70 positive

  • Relapsed/refractory CD70+ lymphoma:

    • Relapsed disease that is CD70 positive and CD19 negative/dim or patients otherwise ineligible for CD19-directed therapies including:
    • Patients in 2nd or greater relapse
    • Patients with relapse after allogeneic HSCT

Estimated life expectancy of >12 weeks

Karnofsky or Lansky (age- dependent) performance score ≥50

Patients with a history of prior allogeneic HCT must be clinically recovered from prior HCT therapy, have no evidence of active GVHD and have not received a donor lymphocyte infusion (DLI) within the 28 days prior to apheresis

Patient must have an identified HCT donor

For females of childbearing age:

i. Not lactating with intent to breastfeed

ii. Not pregnant with negative serum or urine pregnancy test within 7 days prior to enrollment

Exclusion Criteria

  • Known primary immunodeficiency
  • Known history of HIV positivity
  • Severe intercurrent bacterial, viral or fungal infection
  • History of hypersensitivity to cornstarch or hydroxyethyl starch
  • Patients with acute promyelocytic leukemia (APL)
  • Known contraindication to protocol defined lymphodepleting
  • chemotherapy regimen of Fludarabine/cyclophosphamide

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: CD70- CAR T cell Therapy
Patients will receive autologous (their own) cells.
Drug: Fludarabine
40mg/m2, Day -4, -3 and -2
Other Names:
  • Fludara
Drug: Cyclophosphamide

Day -3 and Day-2

REST DAY, -1

Other Names:
  • Cytoxan
Drug: CD70-CAR T cell infusion (Autologous)
Day 0 or +1
Drug: Mesna
Mesna is generally dosed at approximately 25% of the cyclophosphamide dose. It is generally given intravenously prior to and again at 3, 6 and 9 hours following each dose of cyclophosphamide
Other Names:
  • Mesnex

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Maximum tolerated dose of CD70-CAR T cells
Time Frame: 28 days after CD70-CAR T-cell infusion
Phase I design to determine the maximum tolerated dose (MTD) of autologous, CD70-CAR T cells. Three (3) dose levels will be evaluated (1x10e6, 3x10e6, and 1x10e7 cells/kg).
28 days after CD70-CAR T-cell infusion

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
St. Jude Children's Research Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Swati Naik, MBBS, St. Jude

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 16, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
July 1, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2031

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 15, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 15, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 22, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
January 23, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 22, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • DIRECT70
  • NCI-2024-03240 (Other Identifier: NCI Clinical Trial Registration Program)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Individual participant de-identified datasets containing the variables analyzed in the published article will be made available (related to the study primary or secondary objectives contained in the publication). Supporting documents such as the protocol, statistical analyses plan, and informed consent are available through the CTG website for the specific study. Data used to generate the published article will be made available at the time of article publication. Investigators who seek access to individual level de-identified data will contact the computing team in the Department of Biostatistics (ClinTrialDataRequest@stjude.org) who will respond to the data request.

IPD Sharing Time Frame

Data will be made available at the time of article publication.

IPD Sharing Access Criteria

Data will be provided to researchers following a formal request with the following information: full name of requestor, affiliation, data set requested, and timing of when data is needed. As an informational point, the lead statistician and study principal investigator will be informed that primary results datasets have been requested.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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