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Panitumumab-IRDye800 in Diagnosing Participants With Malignant Glioma Undergoing Surgery

Phase I/II, Open-Label Study Evaluating the Efficacy and Pharmacokinetics of Panitumumab-IRDye800 as an Optical Imaging Agent to Detect Neoplasms During Neurosurgical Procedures

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03510208
Enrollment
46
Registered
2018-04-27
Start date
2018-05-16
Completion date
2026-05-01
Last updated
2026-02-09

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

Conditions

Malignant Brain Neoplasm, Malignant Glioma

Brief summary

The phase I/II trial studies the side effects and best dose of panitumumab-IRDye800 in diagnosing participants with malignant glioma who undergo surgery. Panitumumab-IRDye800 can attach to tumor cells and make them more visible using a special camera during surgery, which may help surgeons better distinguish tumor cells from normal brain tissue and identify small tumors that cannot be seen using current imaging methods.

Detailed description

PRIMARY OBJECTIVES: I. Determine/verify the safety and pharmacokinetic profile of panitumumab conjugated to the optical dye IRDye800CW (panitumumab-IRDye800), as an imaging agent in patients undergoing surgery for malignant glioma. SECONDARY OBJECTIVES: I. Determine the efficacy of panitumumab IRDye800 in identifying malignant glioma compared to surrounding normal central nervous system tissue. II. Determine whether a loading dose of panitumumab is necessary to achieve an effective tumor-to-background ratio. III. Determine the optimal timing of the surgical procedure to maximize the tumor-to-background ratio. OUTLINE: This is a phase I, dose escalation study of panitumumab-IRDye800 followed by a phase II study.

Interventions

Undergo NIR imaging

BIOLOGICALPanitumumab

Given IV

DEVICEPOINPOINT-IR9000

Intraoperative camera capable of exciting and detecting near infrared (NIR) dyes. Imaging will be performed on subjects during surgery and/or on ex-vivo resected tissues in the surgery suite ("back table").

Sponsors

Stanford University
Lead SponsorOTHER
National Institutes of Health (NIH)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

1\) One of the following: 1. Cohorts 1, 2, and 3: Participants with suspected or confirmed diagnosis of glioblastoma 2. Cohort 4: Participants with suspected or confirmed diagnosis of vestibular schwannoma 2.) Planned surgical removal of the tumor as part of standard of care. This may include participants postchemotherapy, post-radiation, and/or participants who have undergone diagnostic biopsy for their original diagnosis and are felt to be candidates for resection. 3\) Participant age ≥ 18 years. 4\) Participants or their designated advocates must be willing to and capable of providing informed consent and willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures.

Exclusion criteria

1. Received an investigational drug within 30 days prior to first dose of Panitumumab-IRDye800. 2. Myocardial infarction (MI); cerebrovascular accident (CVA); uncontrolled congestive heart failure (CHF); significant liver disease as determined by PI; or unstable angina within 6 months prior to enrollment. 3. History of infusion reactions to monoclonal antibody therapies 4. Pregnant or breastfeeding. 5. Evidence of QTc prolongation on pretreatment ECG (greater than 440 ms in males or greater than 460 ms in females). 6. Any of the following lab values: 1. Platelet count \< 75,000/mm3 2. TSH ≥ 13 micro International Units/mL. 3. Magnesium, potassium, or calcium \< each respective upper limit of normal 4. Serum creatinine \> 1.5 times upper limit of normal 7. Participants receiving Class IA (quinidine, procainamide) or Class III (dofetilide, amiodarone, sotalol) antiarrhythmic agents. 8. Participants with a history or evidence of interstitial pneumonitis or pulmonary fibrosis. 9. Participants not deemed by PI to be appropriate candidates for optimal resection of tumor based on location, involvement of eloquent brain, satellite lesions, or other factors not specifically listed here.

Design outcomes

Primary

MeasureTime frameDescription
Number of grade 2 or higher adverse events which have been determined to be clinically significant and definitely, probably, or possibly related to the study treatment, graded according to Common Terminology Criteria for Adverse Effects (CTCAE) v. 4.0Up to 30 daysDescriptive statistical analysis of subject disposition, baseline characteristics, exposure to study drug, and adverse events will be performed. Descriptive statistics for continuous data will include mean, standard deviation, median, minimum, maximum, and inter-quartile values. Frequencies and percentages will be used to summarize categorical data.

Secondary

MeasureTime frameDescription
Tumor to background ratio (TBR)30 days from study treatmentTBR is defined as the fluorescence intensity of tumor tissue compared to that or normal surrounding tissue as determined by ex vivo pathological imaging. Will be analyzed with the individual specimen as the unit of analysis using the Wilcoxon signed rank test.
Panitumumab Loading Dose30 daysThe fluorescence intensity of tissue obtained from patients undergoing surgery will be evaluated as an indicator of whether or not the loading dose of panitumumab is necessary to achieve an effective tumor-to-background ratio (TBR). The Fluorescence intensity of tissue will be assessed on the specimens collected on the day of surgery (Day 1-5 Post infusion), in group a vs group b, for Cohorts 1 and 2, in order to determine the tumor-to-background ratio (TBR). The outcome will be expressed as TBR by group and cohort. TBR will be reported as means +/- STD.
Optimal Timing of Surgical Procedure1 yearThe fluorescence intensity of tissue collected at surgery will be measured 1 to 5 days after infusion, and the outcome will be assessed as highest daily mean tumor-to-background ratio (TBR), with standard deviation. The tissue analysis to obtain the outcome data will occur within 1 year from surgery.

Countries

United States

Contacts

CONTACTSandra Torres
sandraet@stanford.edu(650) 723-5281
PRINCIPAL_INVESTIGATORGordon Li, MD

Stanford University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026