Skip to content

Phase I EGFR BATs in Newly Diagnosed Glioblastoma

A Phase I Study Targeting Newly Diagnosed Glioblastoma With Anti-CD3 × Anti-EGFR Bispecific Antibody Armed T Cells (EGFR BATs) in Combination With Radiation and Temozolomide

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03344250
Enrollment
16
Registered
2017-11-17
Start date
2018-03-01
Completion date
2023-05-08
Last updated
2025-03-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Glioblastoma, Glioblastoma Multiforme

Keywords

Adoptive Cell Therapy, Armed Activated T-cells, Bispecific Antibodies, Immunotherapy

Brief summary

This is a phase I trial using EGFR Bi-armed Activated T-cells (BATs) in combination with standard of care temozolomide (TMZ) and radiation (RT) in patients with glioblastoma (GBM). The purpose of the study is to determine a safe dose of EGFR BATs when given with standard of care therapy.

Detailed description

In addition to finding the safe dose of EGFR BATs, immune evaluations will be performed as delineated in the schedule of events to measure immune responses during all stages of treatment for GBM.

Interventions

DRUGEGFR BATs with TMZ following SOC RT/TMZ

Standard of care: 6 weeks of RT and TMZ and 6 cycles of TMZ (150-200 mg/m2) on days 1-5 of each 28 day cycle Experimental: EGFR BATs 2 and 3 weeks after completing RT, and then on day 21 of each cycle of TMZ.

DRUGWeekly EGFR BATs following SOC RT/TMZ

Standard of care: 6 weeks of RT and TMZ Experimental: 8 weekly doses of EGFR BATs following SOC RT and TMZ

Sponsors

University of Virginia
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

EGFR BATs administered in combination with standard of care temozolomide and radiation

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Histologically-confirmed newly diagnosed intracranial GBM or gliosarcoma 2. Age ≥ 18 years. 3. Karnofsky Performance Status ≥ 60. 4. Be willing and able to provide written informed consent for the trial. 5. For patients with resection, CT/MRI with contrast must be performed within 72 hours following resection. Intraoperative post resection MRI is acceptable. No post surgery CT/MRI is required for patients who have received biopsy. 6. Females of childbearing potential, and males, must be willing to use an effective method of contraception 7. Females of childbearing potential should have a negative urine or serum pregnancy test. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required. 8. Demonstrate adequate organ function as defined below. All screening labs should be performed within 10 days prior to apheresis. Absolute lymphocyte count ≥ 500/mm3, Absolute neutrophil count (ANC) ≥1,000 /mcL, Platelets ≥ 100,000 / mcL, Hemoglobin ≥ 9 g/dL (or ≥5.6 mmol/L without transfusion or EPO dependency (within 7 days of assessment), BUN ≤ 1.5 X upper limit of normal (ULN), Serum creatinine within the normal limits OR Measured or calculated creatinine clearance ≥60 mL/min/1.73m2, Serum total bilirubin ≤ 1.5 X ULN OR AST (SGOT) and ALT (SGPT) ≤ 5 X ULN, Albumin \>2.5 mg/dL, International Normalized Ratio (INR) or Prothrombin Time (PT) ≤1.5 X ULN, unless subject is receiving anticoagulant therapy as long as PT or PTT is within therapeutic range of intended use of anticoagulants i. Additional inclusion criteria for sub-cohort: MGMT unmethylated according to UVA pathology testing

Exclusion criteria

1. Patients with a diagnosis of another malignancy within 3 years of being on-study. Exceptions include basal cell carcinoma of the skin, or squamous cell carcinoma of the skin that has undergone potentially curative therapy or in situ cervical cancer. Patients must not be on any treatment for another malignancy. 2. Patients with evidence of leptomeningeal dissemination or subependymal spread on initial MRI. 3. Patients with extracranial metastases. 4. Known hypersensitivity to cetuximab or other EGFR antibody. 5. Alpha 1,3 Galactose IgE (alpha gal) test result outside of the reference range (indicating likely hypersensitivity to cetuximab) 6. Evidence of active bleeding or bleeding diathesis. 7. Cardiac Status: Patients will be ineligible for treatment on this protocol if (prior to protocol entry): There is a history of a recent (within one year) myocardial infarction or stroke. There is a current or prior history of angina/coronary symptoms requiring medications and/or evidence of depressed left ventricular function (LVEF \< 45% by MUGA or ECHO). There is clinical evidence of congestive heart failure requiring medical management (irrespective of MUGA or ECHO results). 8. Has Human Immunodeficiency Virus (HIV) (HIV 1/2 antibodies) or known active Hepatitis B (e.g., HBsAg reactive) or Hepatitis C (e.g., HCV RNA \[qualitative\] is detected). 9. Has received a live vaccine within 30 days of planned start of study therapy. 10. Has received any treatment for GBM besides surgery. 11. Females must not be breastfeeding. 12. Has a history or current evidence of any condition, therapy, or laboratory abnormality that might confound the results of the trial, interfere with the subject's participation for the full duration of the trial, or is not in the best interest of the subject to participate, in the opinion of the treating investigator. 13. A patient may be excluded if, in the opinion of the treating clinician, the patient is not capable of being compliant.

Design outcomes

Primary

MeasureTime frameDescription
Maximum tolerated doseThe study will not advance to the next dose until 7 days after the last patient in the cohort completes his or her second infusion of EGFR BATsMaximum tolerated dose will be based on number of dose limiting toxicities at each dose level

Secondary

MeasureTime frameDescription
Clinical responseEvery 3 months following last study visit until death or study closure, expected within 5 yearsProgression-free survival (PFS)
Immune measures in blood- cellular phenotypeBefore surgery (optional), during screening, at apheresis, at multiple timepoints during study treatment, following completion of study treatment, and every 2-6 months after completion of EGFR BATs infusions through 1 year after last EGFR BATs infusionSequential monitoring of cellular phenotype
Immune measures in blood- interferon-γBefore surgery (optional), during screening, at apheresis, at multiple timepoints during study treatment, following completion of study treatment, and every 2-6 months after completion of EGFR BATs infusions through 1 year after last EGFR BATs infusionSequential monitoring of interferon-γ
Immune measures in blood- EliSpotsBefore surgery (optional), during screening, at apheresis, at multiple timepoints during study treatment, following completion of study treatment, and every 2-6 months after completion of EGFR BATs infusions through 1 year after last EGFR BATs infusionSequential monitoring of EliSpots
Immune measures in blood- anti-GBM cytotoxicity of peripheral blood mononuclear cells directed at GBM cell linesBefore surgery (optional), during screening, at apheresis, at multiple timepoints during study treatment, following completion of study treatment, and every 2-6 months after completion of EGFR BATs infusions through 1 year after last EGFR BATs infusionSequential monitoring of anti-GBM cytotoxicity of peripheral blood mononuclear cells directed at GBM cell lines
Immune measures in blood- serum cytokine patternsBefore surgery (optional), during screening, at apheresis, at multiple timepoints during study treatment, following completion of study treatment, and every 2-6 months after completion of EGFR BATs infusions through 1 year after last EGFR BATs infusionSequential monitoring of serum cytokine patterns
Immune measures in blood- anti-GBM antibodiesBefore surgery (optional), during screening, at apheresis, at multiple timepoints during study treatment, following completion of study treatment, and every 2-6 months after completion of EGFR BATs infusions through 1 year after last EGFR BATs infusionSequential monitoring of anti-GBM antibodies
Response RateEvery 3 months following last study visit until death or study closure, expected within 5 yearsObjective Response Rate
Correlation of imaging to PFS and OSUp to 12 months after study treatment completionImaging (extent of resection) will be evaluated for correlation with PFS and OS.
Correlation of pathology to PFS and OSUp to 12 months after study treatment completionEGFR expression and tumor-infiltrating lymphocytes and age will be evaluated for correlation with PFS and OS.
Correlation of clinical response to PFS and OSUp to 12 months after study treatment completionSteroid use at the time of leukapheresis and age will be evaluated for correlation with PFS and OS.
Correlation of immune response to PFS and OSUp to 12 months after study treatment completionImmune response characteristics will be evaluated for correlation with PFS and OS.
Adverse events, including dose limiting toxicitiesThrough 30 days following last dose of EGFR BATsSafety of 8 weekly doses of BATs in unmethylated MGMT patients without adjuvant temozolomide
SurvivalEvery 3 months following last study visit until death or study closure, expected within 5 yearsOverall Survival (OS)

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 9, 2026