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Active, not recruitingNCT04837547PEACHUpdated Sep 23, 2026

PEACH TRIAL- Precision Medicine and Adoptive Cellular Therapy

A Phase 1 interventional study of Tumor-specific ex vivo expanded autologous lymphocyte transfer (TTRNA-xALT) in Neuroblastoma and Diffuse Intrinsic Pontine Glioma, sponsored by University of Florida. Active, not recruiting at 3 sites in United States. Open to participants aged 1 Year to 30 Years. Per ClinicalTrials.gov, last updated 2026-09-23.

Sponsored by University of Florida · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
24
Allocation
Non-randomized
Ages
1 Year to 30 Years
Sex
All
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Study summary

A Phase I open-label, multicenter study, to evaluate the safety, feasibility, and maximum tolerated dose (MTD) of treating children with newly diagnosed DIPG or recurrent neuroblastoma with molecular targeted therapy in combination with adoptive cell therapy (Total tumor mRNA-pulsed autologous Dendritic Cells (DCs) (TTRNA-DCs), Tumor-specific ex vivo expanded autologous lymphocyte transfer (TTRNA-xALT) and Autologous G-CSF mobilized Hematopoietic Stem Cells (HSCs)).

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Conditions studied

  • Neuroblastoma
  • Diffuse Intrinsic Pontine Glioma
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In context

Neuroblastoma

625 studies on the registry are indexed under Neuroblastoma; 122 are open to participants now.

This study's planned enrollment of 24 is below the median of 32 across 475 interventional studies indexed under Neuroblastoma.

Browse Neuroblastoma studies →

Lead sponsor

University of Florida is the lead sponsor of 1,254 studies on the registry; 201 are open to participants now.

Of its 170 completed or terminated interventional studies of FDA-regulated products, 136 (80%) have results posted.

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

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Who can participate

Ages eligible
1 Year to 30 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Subjects must have proven pediatric cancer with confirmation at diagnosis or at the time of recurrence/progression and clinical determination of disease for which there is no known effective curative therapy or disease that is refractory to established proven therapies fitting into one of the following categories:
  • Disease Status:

High Risk Neuroblastoma-

  1. Patients that have relapsed following standard of care therapy or having progressed during standard of care therapy and non-responsive/progressive to accepted curative chemotherapy.
  2. Neuroblastoma must be age >12 months at enrollment

Diffuse Intrinsic Pontine (or other brain stem) Glioma

  1. Newly-diagnosed patients willing to undergo biopsy
  2. Must be within 2 months of diagnosis and prior to starting radiation
  3. DIPG must be ≥ 3 years of age at enrollment

    • All subjects must be age ≤ 30 years at enrollment
    • Patient and/or parents/guardian willing to consent to biopsy for obtaining tumor material for confirmatory diagnosis and/or tumor RNA extraction and amplification.
    • Subjects must have measurable disease as defined Per section 8 at the time of biopsy and tumor or bone marrow must be accessible for biopsy. Tumor or bone marrow samples submitted for analysis must contain >20% viable tumor tissue to qualify. Note: Subjects with NB who are expected to have no evidence of disease after surgical removal of their tumor are still eligible for this trial if their disease would normally require adjuvant chemotherapy treatment after surgery despite NED status.
    • Current disease state must be one for which there is currently no known effective therapy
    • Specimens will be obtained only in a non-significant risk manner and not solely for the purpose of investigational testing.
    • Lansky or Karnofsky Score must be ≥ 60
    • Bone Marrow:

      1. ANC (Absolute neutrophil count) ≥ 1000/µl (unsupported- >24 hrs off G-CSF and 7 days off neulasta)
      2. Platelets ≥ 100,000/µl (can be transfused)
      3. Hemoglobin > 8 g/dL (can be transfused)
    • Renal: Serum creatinine ≤ upper limit of institutional normal.
    • Adequate liver function must be demonstrated, defined as:

      1. Total bilirubin ≤ 1.5 x upper limit of normal (ULN) for age AND
      2. ALT (SGPT) ≤ 3 times upper limit of normal (ULN) for age
      3. AST (SGOT) ≤ 3 times upper limit of normal (ULN) for age.
    • Subjects with CNS disease currently taking steroids must have been on a stable dose of steroids for at least one week prior to their biopsy and must not have progressive hydrocephalus at enrollment.
    • A negative serum pregnancy test is required for female participants of childbearing potential (≥13 years of age or after onset of menses)
    • Both male and female post-pubertal study subjects need to agree to use one of the more effective birth control methods during treatment and for six months after treatment is stopped. These methods include total abstinence (no sex), oral contraceptives ("the pill"), an intrauterine device (IUD), levonorgestrel implants (Norplant), or medroxyprogesterone acetate injections (Depo-provera shots). If one of these cannot be used, contraceptive foam with a condom is recommended.
    • Informed Consent: All subjects and/or legal guardians must sign informed written consent. Assent, when appropriate, will be obtained according to institutional guidelines
    • Post-Biopsy: Patients with post-biopsy neurological deficits should have deficits that are stable for a minimum of 1 week prior to registration.

Exclusion criteria

Exclusion Criteria:

  • Absence of tumor on biopsy specimen or a diagnosis other than NBL or glioma on biopsy
  • Known autoimmune or immunosuppressive disease or human immunodeficiency virus infection.
  • Subjects with significant renal, cardiac, pulmonary, hepatic or other organ dysfunction.
  • Prior allergic reaction to GM-CSF or Td.
  • Subjects who have received any cytotoxic chemotherapy within the last 7 days prior to biopsy or focal radiotherapy in the case of patients with diffuse intrinsic pontine (or other brain stem) gliomas
  • Subjects with NBL who have received any radiotherapy to the primary sample site within the last 14 days (radiation may be included in treatment decision after biopsy).
  • Subjects receiving any investigational drug concurrently.
  • Subjects with uncontrolled serious infections or a life-threatening illness (unrelated to tumor)
  • Subjects with any other medical condition, including malabsorption syndromes, mental illness or substance abuse, deemed by the Investigator to be likely to interfere with the interpretation of the results or which would interfere with a subject's ability to sign or the legal guardian's ability to sign the informed consent, and subject's ability to cooperate and participate in the study
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Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
24 participants (estimated)

Study arms

  • Experimental
    Arm 1: Subjects with Diffuse Intrinsic Pontine Glioma (DIPG).

    This Phase I study is will utilize a standard 3+3 dose escalation design to establish the MTD and will evaluate the following three pre-specified dose levels of xALT: Dose Level 1: 3 x10\^7 cells/kg Dose Level +1: 3 x10\^8 cells/kg Dose Level -1: 3 x10\^6 cells/kg The dose escalation scheme will be evaluated for Arm 1 and Arm 2 separately. For each Study Arm, a minimum of 4 DLT evaluable subjects and a maximum of 12 DLT evaluable subjects will be enrolled (a total of 8 to 24 DLT evaluable subjects).

    Biological: Tumor-specific ex vivo expanded autologous lymphocyte transfer (TTRNA-xALT)

  • Experimental
    Arm 2: Relapsed/Refractory Neuroblastoma (NB)

    This Phase I study is will utilize a standard 3+3 dose escalation design to establish the MTD and will evaluate the following three pre-specified dose levels of xALT: Dose Level 1: 3 x10\^7 cells/kg Dose Level +1: 3 x10\^8 cells/kg Dose Level -1: 3 x10\^6 cells/kg The dose escalation scheme will be evaluated for Arm 1 and Arm 2 separately. For each Study Arm, a minimum of 4 DLT evaluable subjects and a maximum of 12 DLT evaluable subjects will be enrolled (a total of 8 to 24 DLT evaluable subjects).

    Biological: Tumor-specific ex vivo expanded autologous lymphocyte transfer (TTRNA-xALT)

Interventions

  • BiologicalTumor-specific ex vivo expanded autologous lymphocyte transfer (TTRNA-xALT)

    There will be two immunotherapy products manufactured and administered to subjects enrolled on this trial. The first product will be autologous dendritic cells (DCs) loaded with total tumor messenger ribonucleic acid (mRNA) (TTRNA) derived from malignant tumors. The second product will be autologous T lymphocytes stimulated ex vivo against TTRNA antigens for autologous transfer (TTRNA-xALT). DCs are professional antigen-presenting cells critical for the initiation of B and T-cell responses in vivo.

    Also known as: xALT

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What researchers measure

Primary outcomes

  1. Number of Participants with Dose Limiting Toxicities as a Measure of Safety and Tolerability

    To evaluate the dose-limiting toxicities (DLTs) and to establish the maximum tolerated dose (MTD) of treating children with molecular targeted therapy in combination with adoptive cellular therapy

    Time frame: 2 years

Secondary outcomes

  1. Number of Participants with Adverse Events as a Measure of Safety and Tolerability

    To evaluate the overall safety profile of study treatment

    Time frame: 2 years plus 30 days

  2. Number of Participants that are able to have vaccine produced and delivered

    To evaluable the feasibility of producing and administering the protocol directed therapy

    Time frame: 2 years

  3. Number of participants with progression free survival (PFS) during study

    To determine the activity of treatments chosen based on Progression free survival (PFS)

    Time frame: 7 years

  4. Number of participants with overall survival (OS) during study

    To determine the activity of treatments chosen based on Overall Survival (OS)

    Time frame: 7 years

  5. Determine the Overall Response Rate (ORR) of Participants using INSS Response Evaluation Criteria for NB and RANO criteria for DIPG

    To determine the activity of treatments chosen based on Overall Response Rate (ORR)

    Time frame: 2 years

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Study locations

3 sites
  • University of Florida
    Gainesville, Florida 32611, United States
  • Levine Children's Hospital
    Charlotte, North Carolina 28204, United States
  • Penn State Milton S. Hershey Medical Center and Children's Hospital
    Hershey, Pennsylvania 17033, United States
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References and documents

Individual participant data

Plan to share: No

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04837547
Lead sponsor
University of Florida
Collaborators
Beat Childhood Cancer Research Consortium
Responsible party
Sponsor
First posted
Apr 8, 2021
Start date
Sep 20, 2021
Primary completion
Sep 2027 (estimated)
Completion
Sep 2032 (estimated)
Last update
Sep 23, 2026

Study contacts

Giselle Sholler, MD
study chair · Beat Childhood Cancer at Penn State University
Duane Mitchell, M.D., Ph.D.
study chair · University of Florida

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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