1.	Phase II/III Diagnostic Study of C11-Methionine and 2-F18-Fluoro-2-deoxy-D-Glucose (FDG) Positron Emission Tomography (PET) Imaging in Patients With Progressive Prostate Cancer Phase: Phase III, Phase II Type: Diagnostic Status: Closed Age: Not specified Sponsor: NCI Protocol IDs: MSKCC-97007, NCI-G97-1232, NCT00002981
2.	Evaluation of the Effects of Chemotherapy on the Uptake and Retention of Carbon 11 Methionine in Prostate Cancer Patients Phase: No phase specified Type: Diagnostic, Treatment Status: Completed Age: 18 and over Sponsor: Other Protocol IDs: 04-419, NCT00139204
3.	Imaging Brain Tumors With FACBC and Methionine Phase: No phase specified Type: Diagnostic Status: Closed Age: Not specified Sponsor: Other Protocol IDs: 03-028, NCT00597246