ClinicalTrials.gg
RecruitingNCT07076498Updated Oct 9, 2026

Engineered HSV-1 M032 for the Treatment of Children and Adults With Newly Diagnosed Diffuse Midline Glioma After Standard of Care Radiation

A Phase 1 interventional study of M032 in Glioma, sponsored by M.D. Anderson Cancer Center. Recruiting at 1 site in United States. Open to participants aged 36 Months and older. Per ClinicalTrials.gov, last updated 2026-10-09.

Sponsored by M.D. Anderson Cancer Center · Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started Apr 2026; still recruiting 6 months later.
Phase
Phase 1
Study type
Interventional
Enrollment
20
Allocation
Non-randomized
Ages
36 Months and older
Sex
All
01

Where this study stands

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

Among 30 studies in Glioma by M.D. Anderson Cancer Center — 7 open to participants now, 11 under way, none of them phase 3. Glioma · M.D. Anderson Cancer Center.

Planned enrollment
18th of 26
20 · median 27
Started
2026
the only one that year
Phase 1
10 of 30
4 open now
Primary completion
2029-12
later than 9 of 10 live
Registered
30th of 30
by date

Among the 30 studies in Glioma by M.D. Anderson Cancer Center, this one is the 18th largest by planned enrollment of the 26 interventional ones that give a count, is the only one that started in 2026, is one of 10 in phase 1, reaches primary completion later than 9 of the 10 other live ones, and was the 30th registered.

Glioma

1,452 studies on the registry are indexed under Glioma; 349 are open to participants now.

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Open to participants now

7 of the 30 studies in Glioma by M.D. Anderson Cancer Center are open now, in 1 country. Recruiting first, the newest first:

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By country, each count listing its studies:

All 7 open studies →

Who these studies take

Of the 267 Glioma studies recruiting now, 164 (61%) set no upper age limit and 57 (21%) stop at 75 or younger; 63 take children under 18; 15 take healthy volunteers.

This study: 36 Months and older · all sexes · no healthy volunteers.

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02

Study summary

The goal of this clinical research study is to learn about the safety and effects of M032 given directly into the tumor in children and adults with DMG and who have received standard-of-care radiation therapy.

Read the detailed description

Primary Objective:

I. To assess the safety and tolerability of IL-12-expressing HSV-1 NSC 733972 (M032) administered intratumorally via stereotactic intratumoral injection in children and adults with a diagnosis of diffuse midline glioma (DMG) after receiving standard of care radiation.To determine the maximum tolerated dose (MTD), which will serve as the recommended Phase 2 dose (RP2D). This will include two cohorts: supratentorial DMG H3K27-altered and pontine DMG.

Secondary Objective:

I. Obtain preliminary information concerning the potential efficacy of M032 by assessing longitudinal changes in radiographic response, progression free and overall survival, and performance scale.

II. To survey for virologic shedding in saliva, conjunctiva, and blood. III. To evaluate immunologic responses to M032 by assessing HSV antibody titers and changes from baseline in circulating peripheral blood immune cells, cytokines, and chemokines by longitudinal sampling.

Exploratory Objectives:

I. To evaluate pre- and post-treatment tissue for immune cell populations and checkpoint proteins in patients who are amendable to and meet criteria for resection/biopsy while on study.

II. To assess overall survival (OS) in subgroups of patients based on therapies received after M032 (surgery versus no surgery; reirradiation versus no reirradiation, immunotherapy versus [vs] no immunotherapy).

OUTLINE: This is a dose escalation study of M032.

Patients receive M032 intratumorally (IT) on day 0 over 5 minutes at the time of standard of care (SOC) craniotomy. Patients undergo magnetic resonance imaging (MRI), as well as saliva, conjunctival secretions, blood collection throughout the trial. Patients may undergo tissue biopsy on study.

After completion of study treatment, patients are followed up at 7, 14, and 28 days, then 3, 5, 7, 9, 12, 18, 24 and 36 months, and then annually up to 15 years.

03

Conditions studied

  • Glioma

Keywords

  • Diffuse Midline Glioma
  • H3 K27-altered
  • H3 K27M-mutant
  • Pediatric Brain Tumor
  • DMG
  • Diffuse Intrinsic Pontine Glioma
  • Supratentorial DMG
  • DIPG
  • M032
  • Oncolytic Herpes Simplex Virus
  • Oncolytic Virus
  • oHSV
  • Immunotherapy
  • Oncolytic Immunotherapy
  • Viral Immunotherapy
  • Intratumoral Therapy
  • Phase 1 Trial
  • Pediatric Oncology
  • Neuro-Oncology
  • Clinical Trial in Children
  • Translational Research
04

Who can participate

Ages eligible
36 Months 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

  • Age ≥ 36 months
  • Newly diagnosed proven diffuse midline glioma (DMG) (H3 K27M mutant) or radiographic and/or pathologically proven pontine DMG (tumors with an epicenter in the pontine and diffuse involvement in at least 50% of the axial diameter of the pons)
  • Patient must have received standard of care radiation ≥ 4 but ≤ 8 weeks prior to study enrollment Note: The eligibility determination, enrollment, pre-surgical planning, and M032 administration must be completed within 8 weeks of radiation therapy completion.
  • The tumor characteristics for enrollment are as follows:
  • The lesion must be ≥ 1.0 cm and ≤ 4.0 cm in diameter and surgically accessible as determined by MRI
  • For patients diagnosed with supratentorial DMG, tumors larger than 4.0 cm may be eligible if they can be surgically debulked to ≤ 4.0 cm
  • Patients must have fully recovered from acute treatment-related toxicities prior to entering this study. The study entry timepoint is defined as the time of consent
  • Previous treatment guidelines (if applicable):
  • Monoclonal antibody (i.e., bevacizumab): patient must have received last dose ≥ 21 days prior
  • Radiation: Patients must have received their last fraction of radiation ≥ 4 weeks and ≤ 8 weeks prior to study entry
  • Temozolomide: Patients must have received their last dose of chemotherapy ≥ 4 weeks prior

Normal hematological, renal, and liver function as defined below:

  • > 9g/dL
  • White blood cell ≥ 3,000/μL
  • ≥ 1000/mm3
  • ≥ 100,000/mm3
  • PT or ≤ 1.3 x control
  • Creatinine within normal institutional limits OR ≥ 60 mL/min/1.73 m2 (cystatin C preferred) for patients with creatinine levels above institutional normal
  • Total ≤ 1.5 mg/dl
  • Transaminases \< 3 times above the upper limits of the institutional norm
  • Patients \< 16 years, Modified Lansky score ≥ 60; patients ≥ 16 years, score ≥ 60
  • Women of and men must agree to use adequate (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. (Refer to Pregnancy Assessment Policy MD Anderson Institutional Policy # CLN1114). This includes all female patients, between the onset of menses (as early as 8 years of age) and 55 years unless the patient presents with an applicable exclusionary factor which may be one of the following:
  • (no menses in greater than or equal to 12 consecutive months).
  • History of hysterectomy or bilateral salpingo-oophorectomy.
  • Ovarian failure (Follicle Stimulating Hormone and Estradiol in menopausal range, who have received Whole Pelvic Radiation Therapy).
  • History of bilateral tubal ligation or another surgical sterilization procedure.
  • Approved methods of birth control are as follows: Hormonal contraception (i.e. birth control pills, injection, implant, transdermal patch, vaginal ring), Intrauterine device (IUD), Tubal Ligation or hysterectomy, Subject/Partner post vasectomy, Implantable or injectable contraceptives, and condoms plus spermicide. Not engaging in sexual activity for the total duration of the trial and the drug is an acceptable practice; however periodic abstinence, the rhythm method, and the withdrawal method are not acceptable methods of birth control. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately.
  • Men treated or enrolled on this protocol must also agree to use adequate contraception prior to the study, for the duration of study participation, and 6 months after completion of study agent administration.
  • Written in accordance with institutional and FDA guidelines must be obtained from the patient or legal guardian

Exclusion criteria

Exclusion Criteria:

  • Patients who previously received other agents
  • Patients with untreated symptomatic hydrocephalus
  • Patients with a radiographic atypical pontine DMG or exophytic glioma, unless confirmed H3K27M alteration
  • Patients with a primary spinal cord tumor
  • Acute infection, granulocytopenia, or medical condition precluding surgery
  • Pregnant or lactating females: Pregnant women are excluded from this study due to the unknown potential of M032 to cause teratogenic or abortifacient effects. Lactating females are excluded from this study due to the unknown potential risk of adverse effects on both the mother and nursing infants associated with treatment using M032
  • Diagnosis of encephalitis or CNS infection \< 12 weeks prior
  • Receiving ongoing treatment for encephalitis, CNS infection, or multiple sclerosis
  • Tumor involvement which would require ventricular inoculation or would require access through a ventricle to deliver treatment
  • Patients may not be on therapy (for at least 1 week), including at the time of enrollment. Physiological replacement of corticosteroids, intermittent use of bronchodilators, or topical steroids will not be excluded from the study.
  • Known seropositivity or known immune deficiency
  • Patient with an active herpes infection with clinical symptomology
  • Concurrent therapy with any drug active against HSV (acyclovir, valacyclovir, penciclovir, famciclovir, ganciclovir, foscarnet, cidofovir) or any systemic immunosuppressive drug therapy (except physiological replacement of corticosteroids
  • Patients with a prior or concurrent whose natural history or treatment has the potential to interfere with the safety or efficacy assessment of the investigational regimen for this trial.
  • Concurrent anticancer or investigational drug
  • Patients with medical for MRI or MRI contrast agents.
  • Patients who have received a within 30 days prior to planned M032 treatment.
Terms in these criteria, in plain language(21)

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.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

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.

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.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

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.

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.

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.

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.

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.

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).

Washout period

A planned gap after a treatment, so that its effects can lessen before the study treatment or a study assessment. Ask the study team and the doctor who prescribed it before changing any medicine.

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.

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.

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.

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.

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.

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.

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.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

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 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Adult: For Adult Patients Phase 1 Treatment with Single Injection of M032

    All patients in both disease cohorts (Cohort 1: Supratentorial DMG; Cohort 2: Pontine DMG) will be enrolled in this single-arm Phase 1 trial and will receive intratumoral administration of M032. Each patient will be treated with a single dose of M032 directly injected into the tumor. There is no placebo or comparator arm. The primary objectives are to evaluate the safety and tolerability of M032 and to determine the recommended Phase 2 dose (RP2D). The two disease cohorts will be assessed independently.

    Biological: M032

  • Experimental
    PED: For Pediatric Patients Phase 1 Treatment with Single Injection of M032

    All patients in both disease cohorts (Cohort 1: Supratentorial DMG; Cohort 2: Pontine DMG) will be enrolled in this single-arm Phase 1 trial and will receive intratumoral administration of M032. Each patient will be treated with a single dose of M032 directly injected into the tumor. There is no placebo or comparator arm. The primary objectives are to evaluate the safety and tolerability of M032 and to determine the recommended Phase 2 dose (RP2D). The two disease cohorts will be assessed independently.

    Biological: M032

Interventions

  • BiologicalM032

    M032 is a genetically engineered type 1 herpes simplex virus (HSV-1) that has been demonstrated to be aneurovirulent secondary to deletions of both copies of the γ134.5 gene and modified to express human interleukin-12 (IL-12). Each patient will receive a single intratumoral injection of M032.

06

What researchers measure

Primary outcomes

  1. Safety and Adverse Events (AEs)

    Incidence of Adverse Events, Graded According to National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version (v) 5.0

    Time frame: Through study completion; an average of 1 year

07

Study locations

1 of 1 sites recruiting
08

References and documents

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Apr 2026 (actual). Primary completion is estimated for Dec 2029, 44 months after the start.

Of 166 non-industry phase 1 interventional studies under Glioma, half reached primary completion within 59 months of starting (the median), counting those still running; a quarter within 36 and three quarters within 87. This study's planned 44 months is below that.

Counting every sponsor, half of 213 studies reached it within 59 months; a quarter within 36 and three quarters within 88.

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

Registered
Jul 15, 2025
First posted
Jul 22, 2025
StartActual
Apr 23, 2026
Primary completionEst.
Dec 31, 2029
CompletionEst.
Dec 31, 2031
Last update
Oct 9, 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.
Minor edits
Nothing that changes what the study is or who can join. Edited: verification date
1 update, last Oct 9, 2026
Show all 1 update
  1. Oct 9, 2026
    Minor edits only
    + 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 ↗

10

Registry details

Key details

Study ID
NCT07076498
Collaborators
Congressionally Directed Medical Research Programs
Responsible party
Sponsor
First posted
Jul 22, 2025
Start date
Apr 23, 2026
Primary completion
Dec 31, 2029 (estimated)
Completion
Dec 31, 2031 (estimated)
Last update
Oct 9, 2026

Study contacts

Gregory Friedman, MD
Contact
gkfriedman@mdanderson.org
713-835-4467
Kara Kachurak, PNP
Contact
kgkachurak@mdanderson.org
713-835-4467
Gregory Kane Friedman Friedman, MD
principal investigator · M.D. Anderson 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: IL-12-expressing HSV-1 NSC 733972

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