PET Imaging of Patients With Melanoma and Malignant Brain Tumors Using an 124I-labeled cRGDY Silica Nanomolecular Particle Tracer: A Microdosing Study
Current tests to detect cancer, including CAT scans and MRI scans, are limited. PET scans use special dyes that are injected into a vein and can better localize possible cancer. The investigators have developed a new particle that can carry a radioactive dye to a very specific area of the tumor. When using a PET scan the radioactive dye can be viewed in areas of possible disease. This particle has been studied in mice and was safe.
The particles will not treat the cancer and any images or information found during this study will not be used for your treatment. The information collected may be used to guide the design of future studies to detect and/or treat tumors.
|Newly Diagnosed or Recurrent Metastatic Melanoma Patients Malignant Brain Tumors||Drug: PET scan with 124I-cRGDY-PEG-dots|
|Study Design:||Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Diagnostic
|Official Title:||PET Imaging of Patients With Melanoma and Malignant Brain Tumors Using an 124I-labeled cRGDY Silica Nanomolecular Particle Tracer: A Microdosing Study|
- Conduct pilot single-dose studies of 124I-cRGDY-PEG-dots† [ Time Frame: 2 years ]in a limited number of human melanoma and brain tumor patients to characterize biodistribution, pharmacokinetics, and metabolic stability.
- Estimate the radiation dosimetry of i.v.-injected 124I-cRGDY-PEG-dots. [ Time Frame: 1 year ]studies have demonstrated that a dose 100 times the proposed human dose equivalent did not induce adverse effects
- Assay particle tracer tissue distributions in tumor tissue specimens [ Time Frame: 2 years ]
|Study Start Date:||January 2011|
|Estimated Study Completion Date:||December 2017|
|Estimated Primary Completion Date:||December 2017 (Final data collection date for primary outcome measure)|
Experimental: newly diagnosed or recurrent head/neck melanoma
This is a two-year microdosing study that will enroll 5 metastatic melanoma patients and 18 malignant brain tumor patients (surgical (n=13) and non-surgical candidates (n=5)). We have already accrued 5 melanoma patients and expect to accrue brain tumor patients within a 1 year period.
Drug: PET scan with 124I-cRGDY-PEG-dots
Five (5) patients with newly diagnosed or recurrent melanoma, and 18 malignant brain tumor patients (surgical (n=13) or non-surgical candidates (n=5)). Patients with either primary or metastatic brain tumors, will be i.v. injected with approximately 5 mCi (3.4-6.7 nanomoles) of 124I-cRGDY-PEG-dots (specific activity range 750.0 - 1450 mCi/mol) and undergo the microdosing study for purposes of collecting pharmacokinetic and dosimetry data. All studies will be performed using a dedicated scanner, which integrates a dedicated PET scanner and a spiral CT with proprietary fusion software.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01266096
|Contact: Michelle Bradbury, MD, PhD||646-888-3373|
|Contact: Snehal Patel, MD||212-639-3412|
|United States, New York|
|Memorial Sloan Kettering Cancer Center||Recruiting|
|New York, New York, United States, 10065|
|Contact: Michelle Bradbury, MD, PhD 646-888-3373|
|Principal Investigator: Michelle Bradbury, MD, PhD|
|Principal Investigator:||Michelle Bradbury, MD,PhD||Memorial Sloan Kettering Cancer Center|