ClinicalTrials.gg
RecruitingNCT04870944Updated Sep 11, 2026

CBL0137 for the Treatment of Relapsed or Refractory Solid Tumors, Including CNS Tumors and Lymphoma

A Phase 1/2 interventional study of Biospecimen Collection and Bone Marrow Aspirate in Diffuse Midline Glioma, H3 K27-Altered, Metastatic Malignant Neoplasm in the Central Nervous System and Recurrent Diffuse Intrinsic Pontine Glioma, sponsored by Children's Oncology Group. Recruiting at 35 sites in 2 countries. Open to participants aged 12 Months to 21 Years. Per ClinicalTrials.gov, last updated 2026-09-11.

Sponsored by Children's Oncology Group · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Jan 2022; still recruiting 4 years 9 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
63
Allocation
Not applicable
Ages
12 Months to 21 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 88 studies in Diffuse Intrinsic Pontine Glioma with a site in United States — 24 open to participants now, 34 under way, none of them phase 3. Diffuse Intrinsic Pontine Glioma · United States.

Planned enrollment
19th of 82
63 · median 30
Started
2022
with 5 others
Phase 1/2
17 of 88
4 open now
Primary completion
2026-12
later than 7 of 33 live
Registered
63rd of 88
by date
Lead sponsor
3 of 88
Children's Oncology Group

Among the 88 studies in Diffuse Intrinsic Pontine Glioma with a site in United States, this one is the 19th largest by planned enrollment of the 82 interventional ones, is one of 6 that started in 2022, is one of 17 in phase 1/2, reaches primary completion later than 7 of the 33 other live ones, and was the 63rd registered.

By phase

88 studies; the count open now beside each. This study's row is marked.

Phase 146 · 11 open
Phase 1/2this study17 · 4 open
Phase 215 · 6 open
Observational5 · 3 open
No phase4 · 0 open
Other kind1 · 0 open

By the year they started

First in 2002; this study’s year is marked. 6 started in 2022.

Size and results

Median enrollment 30 across the 82 interventional studies, 100 across the 5 observational. Of the 47 that completed or were terminated, 17 (36%) have results posted.

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02

Study summary

This phase I/II trial evaluates the best dose, side effects and possible benefit of CBL0137 in treating patients with solid tumors, including central nervous system (CNS) tumors or lymphoma that has come back (relapsed) or does not respond to treatment (refractory). Drugs, such as CBL0137, block signals passed from one molecule to another inside a cell. Blocking these signals can affect many functions of the cell, including cell division and cell death, and may kill cancer cells.

Read the detailed description

PRIMARY OBJECTIVES:

I. To estimate the maximum tolerated dose (MTD) and/or recommended Phase 2 dose (RP2D) of Facilitates Chromatin Transcription (FACT) complex-targeting curaxin CBL0137 (CBL0137) administered via infusion on Day 1 and Day 8 of a 21-day cycle to children with recurrent or refractory solid tumors, including CNS tumors and lymphoma. (Phase 1 Dose Escalation) II. To preliminarily determine the antitumor effects as measured by objective response rate of CBL0137 in children with progressive/recurrent diffuse intrinsic pontine glioma (DIPG) and other H3 K27-altered diffuse midline gliomas (DMG). (Phase 2)

SECONDARY OBJECTIVES:

I. To preliminarily determine the antitumor effects of CBL0137 in children with refractory solid tumors and other CNS tumors, to the extent possible in the context of a Phase 1 study.

II. To define and describe the toxicities of CBL0137 in children with recurrent or refractory solid tumors, including CNS tumors.

III. To characterize the pharmacokinetics of CBL0137 in children with recurrent or refractory solid tumors, including CNS tumors.

EXPLORATORY OBJECTIVES:

I. To measure biologic marker FACT in tumor specimens with potential for correlation with disease response.

II. To evaluate the effect of CBL0137 on immune response by measuring the effects on the interferon response pathway in peripheral blood mononuclear cells.

III. To preliminarily determine the effect of treatment with CBL0137 on overall survival of children with DIPG or other diffuse midline gliomas, H3 K27-altered, in comparison with historical controls.

OUTLINE: This is a phase I, dose-escalation study followed by a phase II study.

Patients receive CBL0137 intravenously (IV) over 30 minutes on days 1 and 8. Treatment repeats every 21 days for up to 17 cycles in the absence of disease progression or unacceptable toxicity. Patients with pseudoprogression may remain on treatment, as per the treating physician. Patients also undergo echocardiography (ECHO) collection of blood samples throughout the trial. Patients may also undergo bone marrow aspirate and/or biopsy as clinically indicated.

After completion of study treatment, patients are followed up at 3, 6, 9, 12, 18, 24, 36, 48 and 60 months.

03

Conditions studied

  • Diffuse Midline Glioma, H3 K27-Altered
  • Metastatic Malignant Neoplasm in the Central Nervous System
  • Recurrent Diffuse Intrinsic Pontine Glioma
  • Recurrent Diffuse Midline Glioma, H3 K27-Altered
  • Recurrent Lymphoma
  • Recurrent Malignant Solid Neoplasm
  • Recurrent Primary Malignant Central Nervous System Neoplasm
  • Refractory Lymphoma
  • Refractory Malignant Solid Neoplasm
  • Refractory Primary Malignant Central Nervous System Neoplasm
04

Who can participate

Ages eligible
12 Months to 21 Years
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

  • Parts A and B: Patients must be >= 12 months and =\< 21 years of age at the time of study enrollment
  • Patients must have had histologic verification of at original diagnosis or relapse, except in patients with diffuse intrinsic brain stem tumors, or patients with pineal tumors and elevations of cerebrospinal fluid (CSF) or serum tumor markers, including alpha-fetoprotein or beta-human chorionic gonadotropin (HCG)

    • Part A: Patients with solid tumors or lymphoma, including patients with CNS tumors or known (including untreated or progressive) are eligible
    • Part B: Patients with progressive or recurrent DIPG (diagnosed by or imaging characteristics) and other H3 K27-altered DMG previously treated with radiation therapy
  • Part A: Patients must have either measurable or evaluable disease
  • Part B: Patients must have
  • Patient's current disease state must be one for which there is no known curative therapy or therapy proven to prolong survival with an acceptable quality of life
  • Patients must have a performance status corresponding to Easter Cooperative Oncology Group () scores of 0, 1 or 2. Use for patients > 16 years of age and Lansky for patients =\< 16 years of age. Patients must have a Karnofsky or Lansky score >= 50%
  • Patients must have fully recovered from the acute toxic effects of all prior anti-cancer therapy and must meet the following minimum duration from prior anti-cancer directed therapy prior to enrollment. If after the required timeframe, the numerical eligibility criteria are met, e.g., blood count criteria, the patient is considered to have recovered adequately

    • Cytotoxic chemotherapy or other anti-cancer agents known to be myelosuppressive

      • Solid tumor patients: >= 21 days after the last dose of myelosuppressive chemotherapy (42 days if prior nitrosourea)
    • Anti-cancer agents not known to be myelosuppressive (eg, not associated with reduced or [ANC] counts): >= 7 days after the last dose of agent
    • Antibodies: >= 21 days must have elapsed from infusion of last dose of antibody, and toxicity related to prior antibody therapy must be recovered to grade =\< 1
    • : If used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid. Patients with CNS tumors receiving corticosteroids must have been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment
    • Hematopoietic growth factors: >= 14 days after the last dose of a long-acting growth factor (e.g., pegfilgrastim) or 7 days for short acting growth factor. For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur
    • Interleukins, interferons and cytokines (other than hematopoietic growth factors): >= 21 days after the completion of interleukins, interferon or cytokines (other than hematopoietic growth factors)
    • Stem cell Infusions (with or without total body irradiation [TBI]):

      • Allogeneic (non-autologous) bone marrow or stem cell transplant, or any stem cell infusion including donor lymphocyte infusion (DLI) or boost infusion: >= 84 days after infusion and no evidence of (GVHD)
      • Autologous stem cell infusion including boost infusion: >= 30 days
    • Cellular therapy: >= 42 days after the completion of any type of cellular therapy (e.g., modified T cells, natural killer [NK] cells, dendritic cells, etc.)
    • Radiation therapy [XRT]/external beam irradiation including protons: >= 14 days after local XRT; >= 150 days after TBI, craniospinal XRT or if radiation to >= 50% of the pelvis; >= 42 days if other substantial bone marrow (BM) radiation
    • Radiopharmaceutical therapy (e.g., radiolabeled antibody, I-131 metaiodobenzylguanidine [131I MIBG]): >= 42 days after systemically administered radiopharmaceutical therapy
    • Patients must not have received prior exposure to CBL0137
  • For patients with solid tumors without known bone marrow involvement:

    • Peripheral absolute neutrophil count (ANC) >= 1000/uL (performed within 7 days prior to enrollment unless otherwise indicated)
    • Patients with known bone marrow disease will be eligible for study provided they meet the blood counts (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions). These patients will not be evaluable for hematologic toxicity. At least 5 of every cohort of 6 patients must be evaluable for hematologic toxicity for the dose-escalation part of the study. If dose-limiting hematologic toxicity is observed, all subsequent patients enrolled must be evaluable for hematologic toxicity
  • For patients with solid tumors without known bone marrow involvement:

    • Platelet count >= 100,000/uL (transfusion independent, defined as not receiving platelet transfusions for at least 7 days prior to enrollment) (performed within 7 days prior to enrollment unless otherwise indicated)
    • Patients with known bone marrow metastatic disease will be eligible for study provided they meet the blood counts (may receive transfusions provided they are not known to be refractory to red cell or platelet transfusions). These patients will not be evaluable for hematologic toxicity. At least 5 of every cohort of 6 patients must be evaluable for hematologic toxicity for the dose-escalation part of the study. If dose-limiting hematologic toxicity is observed, all subsequent patients enrolled must be evaluable for hematologic toxicity
  • or radioisotope (GFR) >= 70 mL/min/1.73 m\^2 or a creatinine based on age/sex as follows (performed within 7 days prior to enrollment unless otherwise indicated):

    • Age: Maximum serum creatinine (mg/dL)
    • 1 to \< 2 years: 0.6 (male); 0.6 (female)
    • 2 to \< 6 years: 0.8 (male); 0.8 (female)
    • 6 to \< 10 years: 1 (male); 1 (female)
    • 10 to \< 13 years: 1.2 (male); 1.2 (female)
    • 13 to \< 16 years: 1.5 (male); 1.4 (female)
    • >= 16 years: 1.7 (male); 1.4 (female)
  • Patients with solid tumors:

    • (sum of conjugated + unconjugated or total) =\< 1.5 x (ULN) for age (performed within 7 days prior to enrollment unless otherwise indicated)
  • Patients with solid tumors:

    • Serum glutamate pyruvate transaminase () (alanine aminotransferase [ALT]) =\< 135 U/L. For the purpose of this study, the ULN for SGPT is 45 U/L (performed within 7 days prior to enrollment unless otherwise indicated)
  • Shortening fraction of >= 27% by echocardiogram (performed within 7 days prior to enrollment unless otherwise indicated) or
  • of >= 50% by gated radionuclide study (performed within 7 days prior to enrollment unless otherwise indicated)
  • (QTC) \< 480 msec (performed within 7 days prior to enrollment unless otherwise indicated)
  • Patients with seizure disorder may be enrolled if seizures well controlled without the use of enzyme-inducing anti-convulsant agents. Well controlled is defined by no increase in seizure frequency in the prior 7 days
  • Nervous system disorders ( [CTCAE] version [v]5) resulting from prior therapy must be =\< grade 2, with the exception of decreased tendon reflex (DTR). Any grade of DTR is eligible
  • Patients have consented to receive a central venous catheter prior to the administration of CBL0137. A central line is required for CBL0137 administration

Exclusion criteria

Exclusion Criteria:

  • Pregnant or breast-feeding women will not be entered on this study due to risks of fetal and teratogenic adverse events as seen in animal/human studies, OR because there is yet no available information regarding human fetal or teratogenic toxicities. Pregnancy tests must be obtained in girls who are post-menarchal. Males or females of may not participate unless they have agreed to use two effective methods of , including a medically accepted barrier or contraceptive method (e.g., male or female condom) for the duration of the study. Abstinence is an acceptable method of birth control
  • Patients receiving who have not been on a stable or decreasing dose of corticosteroid for at least 7 days prior to enrollment are not eligible. If used to modify immune adverse events related to prior therapy, >= 14 days must have elapsed since last dose of corticosteroid
  • Patients who are currently receiving another drug are not eligible
  • Patients who are currently receiving other anti-cancer agents are not eligible (except leukemia patients receiving hydroxyurea, which may be continued until 24 hours prior to start of protocol therapy)
  • Patients who are receiving cyclosporine, tacrolimus or other agents to prevent post bone marrow transplant are not eligible for this trial
  • Patients who are receiving drugs that are strong inducers or inhibitors of , CYP2B6 (e.g., carbamazepine) and CYP1A2 (e.g., ciprofloxacin, enoxacin, fluvoxamine, smoking) are not eligible. These agents are to be avoided for 7 days prior to the start of CBL0137 and for the duration of the protocol therapy. Sensitive substrates of CYP2D6 (e.g., atomoxetine, desipramine, dextromethorphan, eliglustat, nebivolol, nortriptyline, perphenazine, tolterodine, R-venlafaxine) should also be avoided for the duration protocol therapy
  • Patients who are receiving drugs associated with a known risk of Torsades de Pointes (TdP) are not eligible. Drugs associated with known risk of Torsades de Pointes (TdP) are to be avoided for 7 days prior to the start of CBL0137 and for duration of the protocol therapy
  • Patients with known peripheral vascular disease are excluded
  • Patients with a history of pro-thrombotic disorder are not eligible
  • Patients who have an uncontrolled infection are not eligible
  • Patients who have received a prior solid organ transplantation are not eligible
  • Patients who in the opinion of the investigator may not be able to comply with the safety monitoring requirements of the study are not eligible
Terms in these criteria, in plain language(24)

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.

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.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

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.

Measurable disease

The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.

The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.

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.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

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.

GVHD (graft-versus-host disease)

After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.

Metastases

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

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

Reproductive potential

Able to have children. For women this usually means from the first period until menopause, unless permanently unable to through surgery; for men, unless permanently sterile. Read who the line is about — participants, women, men, or their partners.

Criteria about it usually ask for contraception during the study and for a time after it.

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.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
63 participants (estimated)

Study arms

  • Experimental
    Treatment (CBL0137)

    Patients receive CBL0137 IV over 30 minutes on days 1 and 8. Treatment repeats every 21 days for up to 17 cycles in the absence of disease progression or unacceptable toxicity. Patients with pseudoprogression may remain on treatment, as per the treating physician. Patients also undergo ECHO collection of blood samples throughout the trial. Patients may also undergo bone marrow aspirate and/or biopsy as clinically indicated.

    Procedure: Biospecimen Collection · Procedure: Bone Marrow Aspirate · Procedure: Bone Marrow Biopsy · Procedure: Echocardiography Test · Drug: FACT Complex-targeting Curaxin CBL0137

Interventions

  • ProcedureBiospecimen Collection

    Undergo collection of blood samples

    Also known as: Biological Sample Collection, Biospecimen Collected, Sample Collection, Specimen Collection

  • ProcedureBone Marrow Aspirate

    Undergo bone marrow aspirate

    Also known as: BONE MARROW, LIQUID, Human Bone Marrow Aspirate

  • ProcedureBone Marrow Biopsy

    Undergo bone marrow biopsy

    Also known as: Biopsy of Bone Marrow, Biopsy, Bone Marrow

  • ProcedureEchocardiography Test

    Undergo ECHO

    Also known as: EC, Echocardiography

  • Given IV

    Also known as: CBL0137

06

What researchers measure

Primary outcomes

  1. Maximum tolerated dose and/or Recommended Phase 2 dose of CBL0137

    Maximum tolerated dose (MTD) and/or recommended phase 2 dose (RP2D) of CBL0137 in children with relapsed or refractory solid tumors including central nervous system (CNS) tumors and lymphoma.

    Time frame: Up to 21 days

  2. Frequency of dose limiting toxicities of CBL0137 (Phase I)

    The frequency (%) of patients experiencing a cycle 1 dose limiting toxicity attributable to CBL0137 by study part and dose level.

    Time frame: Up to 21 days

  3. Anti-tumor effect of CBL0137 in children with diffuse intrinsic pontine glioma (DIPG) or other H3 K27-altered diffuse midline gliomas (Phase II)

    Frequency (%) of patients with at least partial response to CBL0137 at the maximum tolerated dose/recommended phase II dose (MTD/RP2D) in children with progressive or recurrent diffuse intrinsic pontine glioma (DIPG).

    Time frame: Up to 4 months

Secondary outcomes

  1. Anti-tumor effect of CBL0137 in children with solid tumors (Phase I)

    Frequency (%) of patients with at least partial response to CBL0137 at the MTD/RP2D in children with refractory solid tumors and other central nervous system (CNS) tumors.

    Time frame: Up to 4 months

  2. Frequency of adverse events attributable to CBL0137

    The frequency (%) of patients experiencing adverse events that are at least possibly attributable to CBL0137 by study part and dose level.

    Time frame: Up to 60 months

  3. Area under the drug concentration curve of CBL0137

    The median (min, max) of the area under the drug concentration curve for CBL0137 by study part and dose level.

    Time frame: Up to 3 days

Other outcomes

  1. FACT in tumor specimens

    A descriptive analysis of biomarkers will assess associations with disease response. The parameters will be summarized with simple summary statistics, including means, medians, ranges, and standard deviations (if numbers and distribution permit). All these analyses will be descriptive and exploratory and hypotheses generating in nature. FACT expression in tumor specimens will be determined by immunohistochemistry.

    Time frame: Up to 60 months

  2. Immune response

    Will measure effects on the interferon response pathway. A descriptive analysis of biomarkers will assess associations with disease response. The parameters will be summarized with simple summary statistics, including means, medians, ranges, and standard deviations (if numbers and distribution permit). All these analyses will be descriptive and exploratory and hypotheses generating in nature. Peripheral blood lymphocytes will be assessed for expression of genes in the interferon response pathway, in order to determine whether treatment with CBL0137 leads to increase gene expression.

    Time frame: Up to 60 months

  3. Overall survival

    Will be compared with historical controls in children with DIPG or other diffuse midline gliomas, H3 K27-altered.

    Time frame: Up to 60 months

  4. Progression-free survival

    An exploratory analysis of progression-free survival using Kaplan-Meier curves and the log-rank test statistic will compare overall time-to-disease progression (or death) versus historical cohort for the DIPG cohort.

    Time frame: Up to 60 months

07

Study locations

33 of 35 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Started Jan 2022 (actual). Primary completion is estimated for Dec 2026, 59 months after the start.

How these figures are worked out, and which studies are left out of them.

Registered
Apr 19, 2021
First posted
May 4, 2021
StartActual
Jan 28, 2022
Primary completionEst.
Dec 31, 2026
CompletionEst.
Dec 31, 2026
Last update
Sep 11, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 11, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT04870944
Collaborators
Incuron LLC
Responsible party
Sponsor
First posted
May 4, 2021
Start date
Jan 28, 2022
Primary completion
Dec 31, 2026 (estimated)
Completion
Dec 31, 2026 (estimated)
Last update
Sep 11, 2026

Study contacts

David S Ziegler
principal investigator · Pediatric Early Phase Clinical Trial Network

Oversight

Data monitoring committee
No
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: CBLC137

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