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. MElanoma Research Lymph node prediction Implementation National_001 (MERLIN_001) Rochester, Minn. This study aims to create a registry for primary melanoma gene-signature to predict sentinel node (SN) status and determine its prognostic value for more accurate staging of SN-negative melanoma patients. A Registry for the Collection and Maintenance of Biological Specimens for Breast Cancer Research Rochester, Minn. The purpose of this registry is to collect and maintain samples of breast tissue from women and men undergoing surgery for a breast related concern at Mayo Clinic Rochester, to create a biospecimen resource for the study of benign and cancerous breast conditions. A Study to Establish a Living Breast Organoid Biobank for Translational Research Rochester, Minn., Jacksonville, Fla., Scottsdale/Phoenix, Ariz. Researchers at Mayo Clinic are developing a Biobank of adult stem cell-rich breast organoids, a new research resource to facilitate normal and cancer stem cell research. Subjects in the Biobank will provide samples of excess breast tissue, complete a health questionnaire, and allow access to medical records now and in the future. The Biobank serves as a library for researchers; instead of having to look for volunteers for each new project, researchers can use samples from the Biobank as well as share information already collected. A Study to Evaluate the Safety of the Goldilocks Procedure with Implant-Based Reconstruction Rochester, Minn., Jacksonville, Fla., Scottsdale/Phoenix, Ariz. The purpose of this study is to assess outcomes, satisfaction and aesthetics of two different breast reconstruction techniques (Goldilocks alone, and Goldilocks with Implant-Based Reconstruction) and compare its safety, patient satisfaction, aesthetic evaluation and complications. 3D Ultrasound Imaging for Breast Cancer Diagnosis Rochester, Minn. The purpose of this study is to evaluate the effectiveess of a new 3D ultrasound imaging technology combining B-mode, microvessel imaging, shear wave elastography, and machine learning for breast lesion diagnosis. A Study of the Ability to Predict Lymphedema Development Following Axillary Surgery for Breast Cancer and Its Effects on Patient Survivorship Jacksonville, Fla. The purpose of this study is to better understand the anatomy of the lymphatic structure and the molecular process that leads to the over production of lymph fluid. This proposal will begin intense lymphedema screening and identify baseline characteristics potentially predisposing someone to lymphedema, and identify molecular markers that might be altered to prevent lymphedema. Defining the Immunologic Profile of Sentinel Lymph Nodes and Identifying the Mechanisms Responsible for Immunosuppression Rochester, Minn., Jacksonville, Fla. The purpose of this study is to look at the effects cancer and melanoma have on the immune cells found in lymph nodes. A Study of the Bacteria Found in Cancerous and Non-cancerous Breast Tissue Rochester, Minn. The purpose of this study is to see if having different kinds of bacteria genes in breast tissue may be connected to the risk of getting breast cancer. A Study to Evaluate Same Day Discharge Post-mastectomy with/without Alloplastic Breast Reconstruction Rochester, Minn. In the light of the pandemic, institutions have had to take greater precautions and instigate procedures to aim to improve safety and reduce risk for patients undergoing surgery. One intiative was designed to implement a same day discharge for patients undergoing mastectomy with or without alloplastic reconstruction. This study aims to evaluate the outcomes and patient satisfaction with same day mastectomy with or without alloplastic reconstruction following COVID-19 and compare satisfaction and outcomes (e.g complications) with patients pre-COVID 19. This is part of a quality improvement project. 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