PET Imaging of Solid Tumors Using 124I-Humanized 3F8: A Pilot Study
Melanoma, Neuroblastoma, Sarcoma

About this trial
This is an interventional diagnostic trial for Melanoma focused on measuring 124I-Humanized 3F8, PET Imaging, 13-147
Eligibility Criteria
Inclusion Criteria:
Patients with the diagnosis of neuroblastoma must meet both of the following criteria:
- Diagnosis confirmed by histological assessment by MSKCC Department of pathology or by the presence of BM metastases PLUS elevated urinary catecholamines
- Relapsed or refractory stage 4 disease or relapsed or refractory stage MYCN-amplified 2B or 3 disease.
- Patients with tumors other than neuroblastoma must meet both the following criteria:
- Have one of the following diagnoses (these tumors are known to express GD2 on cell surface):
- Melanoma
- Osteogenic sarcoma
- Leiomyosarcoma
- Ewing sarcoma
- Liposarcoma
- Fibrosarcoma
- Malignant fibrous histiocytoma
- Spindle cell sarcoma
- Small cell lung cancer
- Medulloblastoma metastatic to extracranial sites
- Paraganglioma
- Have refractory or relapsed or metastatic disease
- Patients with solid tumors with diagnoses OTHER than neuroblastoma or those listed above will be eligible if they meet both of the following criteria:
- Immunohistochemical demonstration of GD2 expression on cell surface (Tumor assessment by immunohistochemistry is required for this group of patients)
- Have refractory or relapsed disease or metastatic disease. All patients must have measurable or evaluable disease
- Age 3-90 years
- Prior treatment with anti-GD2 monoclonal antibody is permitted only if human anti-human antibody titer is ≤1300 assay developed by Dr. Nai-Kong Cheung.
- Negative serum pregnancy test in women of childbearing potential
- Women of child-bearing potential must be willing to practice an effective method of birth control while on study
- Signed informed consent indicating awareness of the investigational nature of this study.
Exclusion Criteria:
Existing major organ dysfunction > grade 2, with the exception of myelosuppression (neutrophil count > or = 500/μl and platelet count > or = 25,000/μl are acceptable) and hearing loss.
- Acute life threatening infection
- Requirement for sedation for PET/CT scans
- Pregnant women or women who are breast-feeding.
- Inability to comply with protocol requirements.
- Hypersensitivity to potassium iodide or Lugols products
- Prior development of positive human antimouse antibody response (HAMA) or human antihuman antibody response (HAHA)
- Positive human anti-hu3F8 antibody titer.
Sites / Locations
- Memorial Sloan Kettering Cancer Center
Arms of the Study
Arm 1
Experimental
PET Imaging using 124I-Humanized 3F8
124I-hu3F8 at a dose of 3mCi/m2 (with a maximum dose of 5mCi) will be injected IV. 124I-hu3F8 PET/CT scans will be performed at approximately 2-4 hours, 18-26hours, 48-72 hours and 96-144 hours after injection of 124I-hu3F8. A low dose CT scan will be obtained with each PET scans. PET/CT scan images will be analyzed to determine biodistribution of 124I-hu3F8 and to determine dosimetry to organs and sites of disease. Comparison of tumor targeting and tumor dosimetry will be made between the two cohorts of patients: (a) NB and (b) other solid tumors. Blood will be drawn where feasible at multiple time points: approximately 0h, 0.5h, 1h, 2h, 4-8h, 24h, 48h, 96h and 120h-144h after injection of 124I-hu3F8 and radioactivity measured to determine pharmacokinetics of 124I-hu3F8.