If the tumor has remained confined to the pancreas, surgery may be recommended — a final call on whether surgery is an option will be based on the exact location of the cancer. If the tumor is confined to the head and neck of the pancreas, a procedure called the Whipple procedure (pancreaticoduodenectomy) can be done. In this procedure, the first part, or the “head” of the pancreas and about 20 percent of the “body,” or the second part, are removed. The bottom half of the bile duct and the first part of the intestine are also removed. In a modified version of this surgery, a part of the stomach is removed.
The structure of cyclocreatine is fairly flat (planar), which aids in passive diffusion across membranes. It has been used with success in an animal study, where mice suffered from a SLC6A8 (creatine transporter at the blood brain barrier) deficiency, which is not responsive to standard creatine supplementation.  This study failed to report increases in creatine stores in the brain, but noted a reduction of mental retardation associated with increased cyclocreatine and phosphorylated cyclocreatine storages.  As demonstrated by this animal study and previous ones, cyclocreatine is bioactive after oral ingestion   and may merely be a creatine mimetic, able to phosphorylate ADP via the creatine kinase system.