The purpose of this research study is to determine whether the amount of radiation given to the normal areas around the anal cancer can be reduced by using Proton Therapy while reducing the side effects that are seen with standard therapy.
Protocol Amendment History
8 amendments
This ClinicalTrials.gov record has been amended 8 times since 2017-01-10; most recent amendment 2024-08-21.
Status change: Recruiting → Active, Not Recruiting2021-06-30