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Panitumumab-IRDye800 and 89Zr-Panitumumab in Identifying Metastatic Lymph Nodes in Patients With Squamous Cell Head and Neck Cancer

Pilot Study Evaluating Panitumumab-IRDye800 and 89Zr-Panitumumab for Dual-Modality Imaging for Nodal Staging in Head and Neck Cancer

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03733210
Enrollment
14
Registered
2018-11-07
Start date
2019-01-07
Completion date
2021-08-09
Last updated
2023-05-19

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

Conditions

Squamous Cell Carcinoma of the Head and Neck, Carcinoma of the Head and Neck

Keywords

Head and Neck Cancer

Brief summary

This study evaluates how well panitumumab-IRDye800 and 89Zr-panitumumab work in identifying cancer that has spread to the lymph nodes in patients with squamous cell head and neck cancer. Panitumumab-IRDye800 is a drug that contains a dye molecule that fluoresces during surgery to indicate cancerous tissue. 89Zr-panitumumab is a drug that contains a small amount of radiation, which makes it visible in positron emission tomography (PET) scans. PET scans make detailed, computerized pictures of areas inside the body where the drug is used. Giving panitumumab-IRDye800 and 89Zr-panitumumab to patients with head and neck cancer may help doctors find metastatic lymph nodes better than current methods \[positron emission tomography (PET); computed tomography (CT); magnetic imaging resonance (MRI), or combinations\].

Detailed description

For patients with head and neck cancer, detection of malignant cells within nearby lymph nodes (LNs) is an important measure of the extent and severity of the cancer. LNs are a key immunologic organ involved in overall immune surveillance. Historically, LN or LNs were harvested before the surgery of curative intent, evaluated pathologically, and then tumor status of the harvested LNs were utilized to inform the individual surgical plan. These LNs became known as sentinel lymph nodes. In recent years, techniques have been developed to utilize peritumoral injection (around the tumor) of tumor labels that could identify tumor in the LNs without biopsy, ie, only LNs that were tumor-positive would be removed. However, in some patients, this technique could be limited by the location of the primary cancer. Effective and sensitive systemically-administered labels would be a significant advancement. The systemically-administered label 18F-fluorodeoxyglucose (18F-FDG), detected by positron emission tomography / computed tomography (PET/CT) and/or PET / magnetic imaging resonance (PET/MRI) radiologic scans and representing current regular medical care, has provided improvement in detection of cancer-positive LNs. However, further enhancements may be possible. Participants with squamous cell carcinoma of the head and neck (SCCHN) and scheduled to undergo regular medical care surgery with curative intent, were assigned to 2 study groups on the basis of whether regular medical care scans using 18F-FDG PET/CT or PET/MRI had indicated that cancer was suspected in the lymph nodes (LN+ or cN+), or without suspected cancer in the lymph nodes (LN- or cN0). Following the 18F-FDG, and prior to surgery, 89Zr-panitumumab was systemically administered by intravenous infusion, and a PET-CT imaging scan was conducted. Research imaging will be performed intraoperatively using optical imaging devices and a high-energy gamma probe. Subsequently, the excised tissue will evaluated ex vivo (back table) using radioactive (89Zr-panitumumab) and fluorescence (panitumumab-IRDye800) imaging techniques. Regular medical care surgical excision of the tumor and adjacent LN was conducted on Day 2 to 5. After surgery, patients are followed up at 15 and 30 days. PRIMARY OBJECTIVES: I. Determine the sensitivity and specificity of zirconium(89Zr)-panitumumab (89Zr-panitumumab) for the detection of tumor-involved regional lymph nodes. SECONDARY OBJECTIVES: I. Determine the number (proportion) of lymph nodes determined to be tumor positive by histological and/or pathological evaluation that were NOT predicted tumor-positive by 89Zr-panitumumab labeling. EXPLORATORY OBJECTIVES: I. Determine the sensitivity and specificity of panitumumab-IRDye800 for the detection of tumor-involved regional lymph nodes. II. Determine the number (proportion) of lymph nodes determined to be tumor positive by histological and/or pathological evaluation that were NOT predicted tumor-positive by panitumumab-IRDye800 labeling.

Interventions

30 mg administered intravenously (IV)

DRUG89-Zirconium (Zr-89) Panitumumab

0.8 to 1.2 mCi (29 to 45 Mbq) administered intravenously (IV)

DEVICEPinpoint IR IR9000 fluorescence imaging system (FIS)

Handheld fluorescence-imaging endoscope manufactured by Novadaq

DEVICESPY-PHI IR9000 fluorescence imaging system (FIS)

Handheld fluorescence-imaging endoscope manufactured by Novadaq

Fluorescence camera manufactured by SurgVision

DEVICEPDE-NEO II camera

Medical infrared camera manufactured by Hamamatsu Photonics KK

DEVICEFIS-00 fluorescence imaging system (FIS)

Fluorescence-imaging system (FIS) manufactured by Hamamatsu Photonics KK

DEVICEDa Vinci Firefly Imaging System

Fluorescence-imaging endoscope, mounted or stand-alone, manufactured by Intuitive Surgical Inc

DEVICEIGP-ELVIS-v4 Macroscopic Specimen Imager

Macroscopic specimen imager manufactured by LI-COR Biosciences

DEVICEVevo 3100 LAZR-X

Photoacoustic ultrasound imaging system manufactured by VisualSonics

DEVICEPearl Triology Imaging System

Near-infrared fluorescent and bioluminescent imaging system manufactured by LI-COR Biosciences

DEVICEOdyssey CLx Imaging System

Infrared fluorescent-imaging system manufactured by LI-COR Biosciences

DEVICELeica fluorescence microscope

Fluorescence microscope manufactured by Leica

Sponsors

National Institutes of Health (NIH)
CollaboratorNIH
National Cancer Institute (NCI)
CollaboratorNIH
Andrei Iagaru
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

* Biopsy confirmed diagnosis of squamous cell carcinoma of the head and neck. * Subjects diagnosed with any T stage, any subsite within the head and neck that are scheduled to undergo surgical resection. Subjects with recurrent disease or a new primary will be allowed. * Planned standard of care surgery with curative intent for squamous cell carcinoma. * Hemoglobin ≥ 9 gm/dL. * White blood cell count \> 3000/mm³. * Platelet count ≥ 100,000/mm³. * Serum creatinine ≤ 1.5 times upper reference range.

Exclusion criteria

* Myocardial infarction (MI); cerebrovascular accident (CVA); uncontrolled congestive heart failure (CHF); significant liver disease; or unstable angina within 6 months prior to enrollment. * Previous bilateral neck dissection. * History of infusion reactions to monoclonal antibody therapies. * Pregnant or breastfeeding. * Magnesium or potassium lower than the normal institutional values. * Subjects receiving class IA (quinidine, procainamide) or class III (dofetilide, amiodarone, sotalol) antiarrhythmic agents. * Subjects with a history or evidence of interstitial pneumonitis or pulmonary fibrosis. * Severe renal disease or anuria. * Known hypersensitivity to deferoxamine or any of its components.

Design outcomes

Primary

MeasureTime frameDescription
Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labelingup to 5 daysThe ability of 89Zr-panitumumab and 18F-fluorodeoxyglucose (18F-FDG) to detect tumor in lymph nodes were assessed on the basis of radiologic scans and histopathologic evaluation of excised lymph nodes (LNs). The histopathologic assessment was considered the definitive, regular medical care, assessment. The outcome is reported by study group as the number of LNs that were identified as tumor-positive by 18F-FDG- and 89Zr-panitumumab, stratified by the tumor-positivity as assessed by histopathology, and expressed as the number of LNs that were tumor-positive by both, negative for both, or positive for one and not the other. Results are also provided by study group for the number of LNs that tumor-positive by both 18F-FDG- and 89Zr-panitumumab, negative for both, or positive for one and not the other. The outcome is numbers without dispersion

Secondary

MeasureTime frameDescription
Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye800up to 5 daysThe value of 89Zr-panitumumab and panitumumab-IRDye800 as a label for cancer cells (radiologic or fluorescent, respectively), was assessed by the sensitivity and specificity for the detection of tumor cells in lymph nodes near the tumor. 18F-fluorodeoxyglucose (18F-FDG), an established agent for this use, was also assessed. Sensitivity was assessed as the true positive rate of paired measurements, expressed as the proportion (ratio) of the number of specimens positive by histopathology also positive by the test method (test:histopathology). Specificity is the true negative rate, the proportion of the number of specimens negative by histopathology also negative by the test method. The closer the proportions are to 1, the greater the sensitivity or specificity. The outcome is reported as the sensitivity and specificity of 89Zr-panitumumab, panitumumab-IRDye800, and 18F-fluorodeoxyglucose (18F-FDG). The outcome results are ratios, a number without dispersion.

Other

MeasureTime frameDescription
89Zr-panitumumab and 18F-FDG False-negativesup to 5 daysThe value of experimental 89Zr-panitumumab as a radiologic label was assessed as the number of lymph nodes (LNs) that have false-negative results. A false-negative result in this study is one that does not indicate that cancer is present in the lymph node, when histopathologic evaluation confirms the presence of cancer in the lymph nodes. The outcome is reported as the number of false-negative lymph nodes observed after systemic labeling with 89Zr-panitumumab and 18F-FDG, an established agent for this use. The outcome results are numbers without dispersion.
Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDGup to 5 daysThe value of experimental 89Zr-panitumumab as a radiologic label was assessed by determining the positive predictive value (PPV) and the negative predictive value (NPV). PPV is a measure of extent that positive-labeled samples that were actually cancer, expressed as a proportion (ratio) of the number of positive-labeled samples vs samples positive by histopathology (positive label/positive histopathology). NPV is a measure of extent that negative-labeled samples (not positive) that were actually NOT cancer, expressed as a proportion (ratio) of the number of negative-labeled samples vs samples NOT positive by histopathology (negative label/negative histopathology). The closer the proportions are to 1, the better the predictive value. The outcome is reported as the PPV and NPV of 89Zr-panitumumab and 18F-fluorodeoxyglucose (18F-FDG), an established agent for this use. The outcome results are ratios, numbers without dispersion.

Countries

United States

Participant flow

Participants by arm

ArmCount
Tumor-negative Lymph Nodes (by 18F-FDG Scan)
Participants whose lymph nodes are negative for cancer Panitumumab-IRDye800: 30 mg administered intravenously (IV) Zirconium Zr-89 Panitumumab: 0.8 to 1.2 mCi (29 to 45 Mbq) administered intravenously (IV) Pinpoint IR IR9000 fluorescence-imaging system (FIS): Handheld fluorescence-imaging endoscope manufactured by Novadaq SPY-PHI IR9000 fluorescence imaging system (FIS): Handheld fluorescence-imaging endoscope manufactured by Novadaq Explorer Air camera: Fluorescence camera manufactured by SurgVision PDE-NEO II camera: Medical infrared camera manufactured by Hamamatsu Photonics KK FIS-00 fluorescence imaging system (FIS): Fluorescence-imaging system (FIS) manufactured by Hamamatsu Photonics KK Da Vinci Firefly Imaging System: Fluorescence-imaging endoscope, mounted or stand-alone, manufactured by Intuitive Surgical Inc IGP-ELVIS-v4 Macroscopic Specimen Imager: Macroscopic specimen imager manufactured by LI-COR Biosciences Vevo 3100 LAZR-X: Photoacoustic ultrasound imaging system manufactured by VisualSonics Pearl Triology Imaging System: Near-infrared fluorescent and bioluminescent imaging system manufactured by LI-COR Biosciences Odyssey CLx Imaging System: Infrared fluorescent imaging system manufactured by LI-COR Biosciences Leica fluorescence microscope: Fluorescence microscope manufactured by Leica
7
Tumor-positive Lymph Nodes (by 18F-FDG Scan)
Participants whose lymph nodes are positive for cancer. Panitumumab-IRDye800: 30 mg administered intravenously (IV) Zirconium Zr-89 Panitumumab: 0.8 to 1.2 mCi (29 to 45 Mbq) administered intravenously (IV) Pinpoint IR IR9000 fluorescence-imaging system (FIS): Handheld fluorescence-imaging endoscope manufactured by Novadaq SPY-PHI IR9000 fluorescence-imaging system (FIS): Handheld fluorescence-imaging endoscope manufactured by Novadaq Explorer Air camera: Fluorescence camera manufactured by SurgVision PDE-NEO II camera: Medical infrared camera manufactured by Hamamatsu Photonics KK FIS-00 fluorescence imaging system (FIS): Fluorescenc3-imaging system (FIS) manufactured by Hamamatsu Photonics KK Da Vinci Firefly Imaging System: Fluorescence-imaging endoscope, mounted or stand-alone, manufactured by Intuitive Surgical Inc IGP-ELVIS-v4 Macroscopic Specimen Imager: Macroscopic specimen imager manufactured by LI-COR Biosciences Vevo 3100 LAZR-X: Photoacoustic ultrasound imaging system manufactured by VisualSonics Pearl Triology Imaging System: Near-infrared fluorescent and bioluminescent imaging system manufactured by LI-COR Biosciences Odyssey CLx Imaging System: Infrared fluorescent imaging system manufactured by LI-COR Biosciences Leica fluorescence microscope: Fluorescence microscope manufactured by Leica
7
Total14

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLymph nodes not collected or not evaluable42

Baseline characteristics

CharacteristicTumor-negative Lymph Nodes (by 18F-FDG Scan)Tumor-positive Lymph Nodes (by 18F-FDG Scan)Total
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
3 Participants5 Participants8 Participants
Age, Categorical
Between 18 and 65 years
4 Participants2 Participants6 Participants
Age, Continuous63.8 years69.8 years68.3 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
7 Participants6 Participants13 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
1 Participants0 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
White
6 Participants6 Participants12 Participants
Region of Enrollment
United States
7 participants7 participants14 participants
Sex: Female, Male
Female
3 Participants1 Participants4 Participants
Sex: Female, Male
Male
4 Participants6 Participants10 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 70 / 7
other
Total, other adverse events
7 / 77 / 7
serious
Total, serious adverse events
1 / 70 / 7

Outcome results

Primary

Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling

The ability of 89Zr-panitumumab and 18F-fluorodeoxyglucose (18F-FDG) to detect tumor in lymph nodes were assessed on the basis of radiologic scans and histopathologic evaluation of excised lymph nodes (LNs). The histopathologic assessment was considered the definitive, regular medical care, assessment. The outcome is reported by study group as the number of LNs that were identified as tumor-positive by 18F-FDG- and 89Zr-panitumumab, stratified by the tumor-positivity as assessed by histopathology, and expressed as the number of LNs that were tumor-positive by both, negative for both, or positive for one and not the other. Results are also provided by study group for the number of LNs that tumor-positive by both 18F-FDG- and 89Zr-panitumumab, negative for both, or positive for one and not the other. The outcome is numbers without dispersion

Time frame: up to 5 days

Population: Some participants did not have lymph nodes collected, or the collected lymph nodes were not evaluable. Some lymph nodes were not evaluable by all methodologies.

ArmMeasureGroupValue (NUMBER)
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & pathology-positive0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & pathology-negative0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & pathology-positive0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & pathology-negative5 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-positive & pathology-positive0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-positive & pathology-negative0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-negative & pathology-positive0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-negative & pathology-negative6 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & 18F-FDG-positive0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & 18F-FDG-negative0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & 18F-FDG-positive0 Lymph Nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & 18F-FDG-negative5 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & 18F-FDG-positive8 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & pathology-positive4 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-negative & pathology-positive2 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & pathology-negative0 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & 18F-FDG-negative1 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & pathology-positive6 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-negative & pathology-negative6 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & pathology-negative6 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-negative & 18F-FDG-negative4 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-positive & pathology-positive7 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling89Zr-panitumumab-positive & 18F-FDG-positive2 Lymph Nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Detection of Tumor in Lymph Nodes by 18F-FDG and 89Zr-panitumumab Labeling18F-FDG-positive & pathology-negative3 Lymph Nodes
Secondary

Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye800

The value of 89Zr-panitumumab and panitumumab-IRDye800 as a label for cancer cells (radiologic or fluorescent, respectively), was assessed by the sensitivity and specificity for the detection of tumor cells in lymph nodes near the tumor. 18F-fluorodeoxyglucose (18F-FDG), an established agent for this use, was also assessed. Sensitivity was assessed as the true positive rate of paired measurements, expressed as the proportion (ratio) of the number of specimens positive by histopathology also positive by the test method (test:histopathology). Specificity is the true negative rate, the proportion of the number of specimens negative by histopathology also negative by the test method. The closer the proportions are to 1, the greater the sensitivity or specificity. The outcome is reported as the sensitivity and specificity of 89Zr-panitumumab, panitumumab-IRDye800, and 18F-fluorodeoxyglucose (18F-FDG). The outcome results are ratios, a number without dispersion.

Time frame: up to 5 days

Population: Some participants did not have lymph nodes collected, or the collected lymph nodes were not evaluable. Some lymph nodes were not evaluable by all methodologies.Some participants did not have lymph nodes collected, or the collected lymph nodes were not evaluable. Some lymph nodes were not evaluable by all methodologies.

ArmMeasureGroupValue (NUMBER)
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80089Zr-panitumumab Sensitivity0 Ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80089Zr-panitumumab Specificity0 Ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye800Panitumumab-IRDye800 Sensitivity0 Ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye800Panitumumab-IRDye800 Specificity Panitumumab-IRDye800 Specificity0 Ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80018F-FDG Sensitivity0 Ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80018F-FDG Specificity0 Ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80018F-FDG Sensitivity0.78 Ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80089Zr-panitumumab Sensitivity0.4 Ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye800Panitumumab-IRDye800 Specificity Panitumumab-IRDye800 Specificity1.0 Ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80089Zr-panitumumab Specificity1.0 Ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye80018F-FDG Specificity0.67 Ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Sensitivity and Specificity of 89Zr-panitumumab, 18F-FDG, and Panitumumab-IRDye800Panitumumab-IRDye800 Sensitivity1.0 Ratio
Other Pre-specified

89Zr-panitumumab and 18F-FDG False-negatives

The value of experimental 89Zr-panitumumab as a radiologic label was assessed as the number of lymph nodes (LNs) that have false-negative results. A false-negative result in this study is one that does not indicate that cancer is present in the lymph node, when histopathologic evaluation confirms the presence of cancer in the lymph nodes. The outcome is reported as the number of false-negative lymph nodes observed after systemic labeling with 89Zr-panitumumab and 18F-FDG, an established agent for this use. The outcome results are numbers without dispersion.

Time frame: up to 5 days

Population: Some participants did not have lymph nodes collected, or the collected lymph nodes were not evaluable. Some lymph nodes were not evaluable by all methodologies.

ArmMeasureGroupValue (NUMBER)
Tumor-negative Lymph Nodes (by 18F-FDG Scan)89Zr-panitumumab and 18F-FDG False-negatives89Zr-panitumumab False-negatives0 Lymph nodes
Tumor-negative Lymph Nodes (by 18F-FDG Scan)89Zr-panitumumab and 18F-FDG False-negatives18F-FDG False-negatives0 Lymph nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)89Zr-panitumumab and 18F-FDG False-negatives89Zr-panitumumab False-negatives6 Lymph nodes
Tumor-positive Lymph Nodes (by 18F-FDG Scan)89Zr-panitumumab and 18F-FDG False-negatives18F-FDG False-negatives2 Lymph nodes
Other Pre-specified

Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG

The value of experimental 89Zr-panitumumab as a radiologic label was assessed by determining the positive predictive value (PPV) and the negative predictive value (NPV). PPV is a measure of extent that positive-labeled samples that were actually cancer, expressed as a proportion (ratio) of the number of positive-labeled samples vs samples positive by histopathology (positive label/positive histopathology). NPV is a measure of extent that negative-labeled samples (not positive) that were actually NOT cancer, expressed as a proportion (ratio) of the number of negative-labeled samples vs samples NOT positive by histopathology (negative label/negative histopathology). The closer the proportions are to 1, the better the predictive value. The outcome is reported as the PPV and NPV of 89Zr-panitumumab and 18F-fluorodeoxyglucose (18F-FDG), an established agent for this use. The outcome results are ratios, numbers without dispersion.

Time frame: up to 5 days

Population: Some participants did not have lymph nodes collected, or the collected lymph nodes were not evaluable. Some lymph nodes were not evaluable by all methodologies.

ArmMeasureGroupValue (NUMBER)
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG89Zr-panitumumab Positive Predictive Value (PPV)0 ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG89Zr-panitumumab Negative Predictive Value (NPV)0 ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG18F-FDG Positive Predictive Value (PPV)0 ratio
Tumor-negative Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG18F-FDG Negative Predictive Value (NPV)0 ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG18F-FDG Negative Predictive Value (NPV)0.67 ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG89Zr-panitumumab Positive Predictive Value (PPV)0.4 ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG18F-FDG Positive Predictive Value (PPV)0.78 ratio
Tumor-positive Lymph Nodes (by 18F-FDG Scan)Positive Predictive Value (PPV) and Negative Predictive Value (NPV) of 89Zr-panitumumab and 18F-FDG89Zr-panitumumab Negative Predictive Value (NPV)1.0 ratio

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026