Dr. Gulley is an internationally recognized expert in cancer immunotherapy with a strong interest in prostate cancer. Since 1998 he has authored and run a variety of clinical trials at the National Cancer Institute. These innovative, investigator-initiated studies involve the use of cancer immunotherapy to (a) initiate immune responses, (b) expand immune responses and/or (c) allow the immune responses to be effective within the tumor microenvironment.

In addition to his role as Branch Chief, Dr. James L. Gulley is also Director of the Medical Oncology Service.