Installation of Labmatrix is limited to computers specified by Dr. Figg. These computers all have a password restricted login screen. Labmatrix creates a unique barcode ID for every sample and sample box, which cannot be traced back to patients without Labmatrix access. The data recorded for each sample includes the patient ID, name, trial name/protocol number, time drawn, cycle time point, dose, material type, as well as box and freezer location. Patient demographics associated with the clinical center patient number are provided in the system. For each sample, there are notes associated with the processing method (delay in sample processing, storage conditions on the ward, etc.). Barcoded samples are stored in barcoded boxes in a locked freezer at either -20 or -80C according to stability requirements. These freezers are located onsite in the BPC and offsite at NCI Frederick Central Repository Services in Frederick, MD. Visitors to the laboratory are required to be accompanied by laboratory staff at all times. 39 Short Title: Enzalutamide Vaccine in mCRPC Version Date: 03/29/2022 Access to stored clinical samples is restricted. Samples will be stored until requested by a researcher named on the protocol.