A Phase I Study: PET Imaging of Cancer Patients Using [18F] 4-L-Fluoroglutamine (2S,4R)

Thirty cancer patients will receive an injection of a 0.5 to 7.5mCi of \[18F\] 4-LFluoroglutamine (2S,4R) , followed by serial PET/CT scanning and blood draws, (at the direction of the investigator) over a period of 3.5 hours, on a single day. Each patient will be offered the opportunity to repeat the \[18F\] 4-L-Fluoroglutamine (2S,4R) injection and subsequent set of post-injection PET-CT scans, once, on a separate date. At the discretion of the investigator, scan 3 can be waived. Immediately prior to injection of the radiotracer, a blood sample will be obtained for measurement of serum glutamine level. The serum glutamine level will be assayed, if necessary, as part of an amino acid screen assay.