Clinical trials Read about ongoing general surgery-related clinical trials at Mayo Clinic. Below are current clinical trials.9 studies in Surgical Oncology and Endocrine Surgery in Arizona (open studies only). Filter this list of studies by location, status and more. Request an appointment Expertise & rankingsResearch Aug. 14, 2025 Share on: FacebookTwitter No. 1 Hospital in Arizona: 2025-2026 U.S. News & World Report Mayo Clinic in Arizona is the No. 1 hospital in Arizona and one of the top 20 hospitals in the nation for 9 consecutive years. Learn more about this top honor Surgical Oncology and Endocrine Surgery in ArizonaSectionsOverviewTests & proceduresConditions treatedDoctorsExpertise & rankingsClinical trialsResearchCosts & insuranceReferrals Research: It's all about patients Show transcript for video Research: It's all about patients [MUSIC PLAYING] Joseph Sirven, M.D., Professor of Neurology, Mayo Clinic: Mayo's mission is about the patient. The patient comes first. So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. SectionsRequest an AppointmentOverviewTests & proceduresConditions treatedDoctorsExpertise & rankingsClinical trialsResearchCosts & insuranceReferrals ORG-20515585 Medical Departments & Centers Surgical Oncology and Endocrine Surgery in Arizona