A Study of High Dose Radiation Therapy for Locally Advanced Pancreatic Cancer That Responded to Initial Chemotherapy Treatment

"High dose radiation refers to the administration of a concentrated beam of radiation to target and treat the tumor. High dose radiation therapy typically involves delivering radiation in fractions over a set period. For instance, options such as:~* 50Gy/5Fx: 50 Gray delivered over 5 fractions, administered every other day over 2 weeks.~* 67.5Gy/15Fx: 67.5 Gray delivered over 15 fractions, administered once a day over 3 weeks.~* 75Gy/25Fx: 75 Gray delivered over 25 fractions, administered once a day over 5 weeks.~These numbers denote the total dose of radiation (in Gray, abbreviated as Gy) delivered over a specific number of fractions (abbreviated as Fx), and the respective time frames for administration. The selection of radiation therapy (RT) dose levels for participants is guided by the expertise and evaluation of the radiation oncologist."