Dr. Brennan has over 150 peer reviewed articles and book chapters, and he’s currently the co-principal investigator on an NIH U01 grant examining the head and neck effects of radiation therapy in head and neck cancer patients. Dr. Brennan is also the lead coordinating investigator for a study assessing a first in human treatment for oral lichen planus (an inflammatory condition of the mouth). Finally, he’s the site principal investigator of a study to assess gene therapy treatment in subjects with radiation-induced dry mouth.