It depends on whether your oncologist is on the clinical study team. As part of a clinical trial, your study-related medical care is provided by the study team at the location where you’re participating. This includes the principal investigator (study doctor) — the healthcare professional who conducts and takes responsibility for the study at that location — as well as other study team members.
During your clinical trial, you may also continue to see your regular medical doctors for any care that is not related to the study. It is important for you to tell your study team about other conditions you might have, and to let them know which other doctors are caring for you. This helps the study team coordinate your overall care. It is equally important to tell your other doctors about your participation in your study.