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RecruitingNCT06831526Updated May 29, 2026

Neoadjuvant Chemoradiotherapy With or Without Concurrent Azeliragon in Patients With Newly Diagnosed Glioblastoma

An Early Phase 1 interventional study of Azeliragon and Temozolomide in Glioblastoma, sponsored by Washington University School of Medicine. Recruiting at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-29.

Sponsored by Washington University School of Medicine · Early Phase 1, Interventional, and Treatment

From the registry’s dates

  • Started Nov 2025; still recruiting 11 months later.
Phase
Early Phase 1
Study type
Interventional
Enrollment
12
Allocation
Randomized
Ages
18 Years and older
Sex
All
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Study summary

Preclinical data have demonstrated the combination of azeliragon, a RAGE inhibitor, with radiation therapy (RT) can effectively reduce immune-suppressive myeloid cells and restore T-cell activation to improve tumor control in murine glioma models. Ongoing clinical studies of azeliragon with RT alone and RT plus temozolomide (TMZ) to treat patients with newly diagnosed glioblastoma (GBM) have demonstrated safety and tolerability. The purpose of this window-of-opportunity study is to validate that the combination of azeliragon with RT and TMZ would modulate immune-suppressive myeloid and T cells in the tumor microenvironment in patients with GBM.

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Conditions studied

  • Glioblastoma

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Keywords

  • GBM
  • Neoadjuvant chemoradiotherapy
  • Azeliragon
  • RAGE inhibitor
  • Window of opportunity study
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In context

Glioblastoma

1,920 studies on the registry are indexed under Glioblastoma; 450 are open to participants now.

This study's planned enrollment of 12 is below the median of 36 across 1,618 interventional studies indexed under Glioblastoma.

Browse Glioblastoma studies →

Lead sponsor

Washington University School of Medicine is the lead sponsor of 1,765 studies on the registry; 271 are open to participants now.

Of its 324 completed or terminated interventional studies of FDA-regulated products, 212 (65%) have results posted.

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

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Who can participate

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

Inclusion criteria

  • Histologically proven diagnosis of IDH-wildtype GBM (WHO grade 4) according to the 2021 WHO classification (including subtypes such as gliosarcoma).
  • Radiographic evidence of residual tumor after initial surgery or biopsy.
  • Patient is amenable for future surgery (either surgical resection or laser interstitial thermal therapy (LITT)) to sample the residual tumor after completion of chemoradiotherapy.
  • At least 18 years of age.
  • Eligible for and planning to receive standard fractionated RT of 60 Gy with concurrent TMZ.
  • Recovered from the effects of surgery, postoperative infection, and other complications sufficiently for initiation of chemoradiotherapy, in the opinion of the treating physician.
  • Karnofsky performance status ≥ 60.
  • Adequate organ and bone marrow function as defined below:

    • Absolute neutrophil count (ANC) ≥ 1.5 K/cumm;
    • Platelets ≥ 100 K/cumm;
    • Hemoglobin > 9.0 g/dL (Note: the use of transfusion or other intervention to achieve Hgb >9.0 g/dL is acceptable);
    • Total bilirubin ≤ 1.5 ULN
    • AST (SGOT) and ALT (SGPT) ≤ 3 x ULN
    • Creatinine ≤ 1.5 ULN or creatinine clearance ≥ 60 mL/min
    • If there is history of human immunodeficiency virus (HIV) infection, patients must be on effective antiretroviral therapy, and HIV viral load must be undetectable within 6 months of study enrollment.
    • If there is history of chronic hepatitis B virus (HBV) infection, patients must have either been treated or are on suppressive therapy (as indicated), and HBV viral load must be undetectable.
    • If there is history of hepatitis C virus (HCV) infection, patients must have been treated, and HCV viral load must be undetectable.
  • Females of childbearing potential (defined as a female who is non-menopausal or surgically sterilized) and sexually active heterosexual males must be willing to use an acceptable method of birth control (i.e., hormonal contraceptive, intra-uterine device, diaphragm with spermicide, condom with spermicide, or abstinence) during the trial and for 6 months after the last administration of azeliragon. Should a female trial participant or female partner of a male trial participants become pregnant or suspect she is pregnant while participating in this study, she must inform her treating physician immediately.
  • Able to understand and willingness to sign an IRB-approved written informed consent document. Legally authorized representatives may sign and give informed consent on behalf of study participants.

Exclusion criteria

Exclusion Criteria:

  • Prior cranial RT or RT to the head and neck where potential field overlap may exist.
  • Leptomeningeal or metastatic involvement.
  • Known IDH mutation. IDH status could be determined by either immunohistochemistry or sequencing as evaluated per routine clinical care.
  • Patients receiving CYP 2C8 inhibitors within 2 weeks or 5 half-lives prior to study entry.
  • Patients with a gastrointestinal condition that could interfere with swallowing or absorption.
  • Patients with concurrent participation in another interventional clinical trial or use of another investigational agent within 30 days prior to study entry. Patients who are participating in non-interventional clinical trials (e.g., QOL, imaging, observational, follow-up studies, etc.) are eligible, regardless of the timing of participation.
  • Medical contraindication to MRI (e.g., unsafe foreign metallic implants, incompatible pacemaker, inability to lie still for long periods, severe to end-stage kidney disease or on hemodialysis).
  • Pregnant or breastfeeding. Women of childbearing potential must have a negative pregnancy test within 14 days of the first dose of RT (Arm 1) or azeliragon (Arm 2).
  • Patients with psychiatric illness/social situations, including alcohol or drug abuse that in the investigator's opinion will prevent administration or completion of protocol therapy.
  • Non-English speaking, as the cognitive assessments will only be available in English
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Study design

Phase
Early Phase 1
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
12 participants (estimated)

Study arms

  • Active comparator
    Arm 1: Neoadjuvant RT and Temozolomide (TMZ) + Surgery or LITT + Adjuvant TMZ & Azeliragon

    Radiation therapy (RT) will consist of fractionated RT to 60 Gy in 30 daily fractions administered per standard of care RTOG approach. Concurrent TMZ during RT will be self-administered by mouth (PO) as per standard of care. 1 month after completion of RT, patient will proceed with planned surgery of either resection or LITT. Patients will then receive adjuvant TMZ and azeliragon for up to 6 months. Patient should start with the loading dose 30 mg BID for 6 days before the start of adjuvant TMZ. After 6 days, azeliragon 20 mg once daily should be continued in combination with TMZ.

    Drug: Azeliragon · Drug: Temozolomide · Radiation: Radiation therapy · Procedure: Surgery or LITT

  • Experimental
    Arm 2: Neoadjuvant RT, Temozolomide (TMZ) & Azeliragon + Surgery or LITT + Adjuvant TMZ & Azeliragon

    RT will consist of fractionated RT to 60 Gy in 30 daily fractions administered per standard of care RTOG approach. Concurrent TMZ during RT will be self-administered by mouth (PO) as per standard of care. Patients will receive azeliragon as well. Azeliragon is self-administered PO. Azeliragon dosing will consist of 6 days of a loading dose of 30 mg twice per day starting on day -6, followed by 20 mg daily starting on the Day 1. Concurrent RT and TMZ start on Day 1. Azeliragon should continue until the day before planned surgical procedure. 1 month after completion of RT, patient will proceed with planned surgery of either resection or LITT. Patients will then receive adjuvant TMZ and azeliragon for up to 6 months. Patient should start with the loading dose 30 mg BID for 6 days before the start of adjuvant TMZ. After 6 days, azeliragon 20 mg once daily should be continued in combination with TMZ.

    Drug: Azeliragon · Drug: Temozolomide · Radiation: Radiation therapy · Procedure: Surgery or LITT

Interventions

  • DrugAzeliragon

    Provided by Cantex Pharmaceuticals

  • DrugTemozolomide

    Standard of care.

    Also known as: TMZ

  • RadiationRadiation therapy

    Standard of care.

  • ProcedureSurgery or LITT

    Standard of care surgical resection or laser interstitial thermal therapy (LITT).

06

What researchers measure

Primary outcomes

  1. Percentage of immune-suppressive myeloid cells in the tumor tissue

    Time frame: At time of surgery or LITT (estimated to be day 60)

  2. Percentage of immune-suppressive T cells in the tumor tissue

    Time frame: At time of surgery or LITT (estimated to be day 60)

Secondary outcomes

  1. Number of participants with adverse events

    Time frame: From day 1 (Arm 1) or Day -6 (Arm 2) through 30 days after last dose of azeliragon (estimated to be 10 months)

  2. Number of participants with intolerable toxicities

    The protocol lists the specific toxicities that are considered intolerable.

    Time frame: From first dose of azeliragon until 30 days after the last dose (estimated to be 6-9 months)

  3. Progression-free survival (PFS)

    Time frame: Up to 12 months after completion of study treatment (estimated to be 21 months)

  4. Overall survival (OS)

    Time frame: Up to 12 months after completion of study treatment (estimated to be 21 months)

  5. Feasibility of the regimen as measured by the number of participants who proceed with post-chemoradiotherapy surgery or LITT

    Feasibility is defined as at least 50% of patients in each arm who are able to proceed with post-chemoradiotherapy surgery or LITT.

    Time frame: Through surgery or LITT (estimated to be 60 days)

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Study locations

1 of 1 sites recruiting
  • Washington University School of Medicine
    St Louis, Missouri 63110, United States
    • Jiayi Huang, M.D. · Contact · jiayi.huang@wustl.edu · 314-362-8567
    • Jiayi Huang, M.D. · Principal investigator
    • Chun-Kan Chen, Ph.D. · Sub investigator
    • Dimitrios Mathios, M.D. · Sub investigator
    • Abraham Snyder, M.D. · Sub investigator
    • Chongliang Luo, Ph.D. · Sub investigator
    • Milan Chheda, M.D., Ph.D. · Sub investigator
    • Joshua Shimony, M.D. · Sub investigator
    • Robert Fucetola, Ph.D. · Sub investigator
    • Timothy Mitchell, Ph.D. · Sub investigator
    • Zhihua Liu, Ph.D. · Sub investigator
    • Nikhil Rammohan, M.D., Ph.D. · Sub investigator
    • Tanner Johanns, M.D., Ph.D. · Sub investigator
    • Omar Butt, M.D., Ph.D. · Sub investigator
    • Joshua Dowling, M.D. · Sub investigator
    • Albert Kim, M.D., Ph.D. · Sub investigator
    • Eric Leuthardt, M.D. · Sub investigator
    • Ananth Vellimana, M.D. · Sub investigator
    • Greg Zipfel, M.D. · Sub investigator
    • Tammie Benzinger, M.D., Ph.D. · Sub investigator
    Recruiting
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References and documents

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 29, 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
NCT06831526
Lead sponsor
Washington University School of Medicine
Collaborators
Cantex Pharmaceuticals
Responsible party
Sponsor
First posted
Feb 18, 2025
Start date
Nov 6, 2025
Primary completion
Feb 28, 2029 (estimated)
Completion
Aug 31, 2030 (estimated)
Last update
May 29, 2026

Study contacts

Jiayi Huang, M.D.
Contact
jiayi.huang@wustl.edu
314-362-8567
Jiayi Huang, M.D.
principal investigator · Washington University School of Medicine

Oversight

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

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