Skip to content

Clinical Outcomes and Clinical Trials Program (COCTP)

Visiting Scholars

Keiichi Sumida, MD

Dr. Sumida obtained his MD degree in Japan, and he completed his internal medicine residency and nephrology fellowship at Toranomon Hospital in Tokyo, Japan. Between 2010-2014 he worked there as an attending nephrologist. Dr. Sumida is board certified in Internal Medicine, Nephrology, and Rheumatology in Japan.

Since April 2015, he’s been working as a visiting research scholar at COCTP in Division of Nephrology, Department of Medicine at UTHSC. He is also a student of Johns Hopkins Bloomberg School of Public Health and plans to pursue the Master of Public Health degree. His research interests are bone and mineral disorders, detecting non-traditional risk factors, and identifying optimal care in chronic kidney disease through clinical studies.

Previous Visiting Scholars and Students

Margit Mikkelsen

Margit Mikkelsen is currently a senior at Rhodes College in Memphis, TN. She will graduate in May 2015 with a Bachelor of Science in Biology and a minor in International Studies. She plans to pursue a medical degree and is in the process of applying to medical school. In addition to being a student research assistant at UTHSC, she is also interning in the Anesthesiology department at St. Jude Children's Research Hospital.

Kristof Nagy, MD

Dr. Nagy received his medical degree in Hungary, 2014.  As a medical student he researched the metabolic changes after simultaneous kidney and pancreas transplantation. After graduation he entered to the Postdoctoral program with the main interest of kidney transplantation.

Dr. Nagy was invited to our department to work as a Postdoctoral Visiting Scholar on different epidemiological research projects. The main reason of visit is that his home institution, Semmelweis University, Budapest, Hungary, does not have any large medical databases, therefore this is unique opportunity for him to gain experience with large database management and analyzing, so he can initiate similar databases returning to his home country. Dr. Nagy has been working at COCTP since February, 2015.



The Harold Simmons Center for Chronic Disease Research and Epidemiology at University of California, Irvine

The Harold Simmons Center for Chronic Disease Research and Epidemiology is located on the campus of the University of California, Irvine (UCI), California. The Center is funded by a philanthropic grant from Mr. Harold Simmons in addition to funding from NIH and various other sources. Kamyar Kalantar-Zadeh, M.D. Ph.D who is Professor of Medicine at UCI, heads the Center. Besides its main mission of chronic disease research, the Center provides research training for masters and doctoral students from the UCI/UCLA School of Public Health, students and recent college graduates interested in pursuing careers in medicine and/or medical research, and young physician investigators from all over the world. The Harold Simmons Center has expanded during these past eight years in terms of facility space as well as staff. Our clinical studies staff has expanded to include one full-time study coordinator as well as three part-time staff members and several volunteers who are seeking experience in clinical trial research while pursuing careers in medicine or the healthcare field. The Center is currently mentoring five research physicians who come from all over the world to expand their knowledge of epidemiological research methodologies. Researchers who have completed their tenure are continuing their collaboration with the Center from their respective countries using remote access technologies.

John Hopkins Hospital

Our Group has been part of an international consortium of cohort studies (CKD Prognosis Consortium) spearheaded by Dr. Josef Coresh at the Johns Hopkins Hospital in Baltimore, MD.


University of Toronto

University of Toronto is one of the leading Universities in North-America. Our group collaborates with the group headed by Istvan Mucsi, MD, PhD in the field of kidney transplantation research.

Semmelweis University

Semmelweis University is the largest medical school in Hungary, Europe. The Division of Transplantation and Surgery performs approximately 150-170 kidney transplantations a year. Our group collaborates with the Division of Transplantation and Surgery on analyses from an observational cohort of prevalent kidney transplant recipients (“Malnutrition-Inflammation in Transplant-Hungary [MINIT-HU] Study”).

Last Published: Jan 19, 2018