Clinical Research

OVERVIEW

Our faculty have strong expertise in performing high-quality research in epidemiology, clinical outcomes and population sciences. We also conduct several clinical trails thus providing our patients access to participate in ground-breaking research.

W. RAY KIM

Professor

Dr. Kim's research focuses on clinical epidemiology and patient-oriented, effectiveness research to improve the outcome of individuals with chronic liver disease by identifying the optimal means for diagnosis, monitoring, treatment and prevention. His research group has strong interest in acute and chronic renal injury in patients undergoing liver transplantation.

URI LADABAUM

Professor

Dr. Ladabaum's research focus is colorectal cancer risk management and prevention, including screening, risk stratification, and management of average-risk as well as high-risk populations, including persons with Lynch syndrome. His research program spans a range of methods and approaches including epidemiological studies, observational and interventional clinical studies, systematic reviews, decision analyses and health economic evaluations. Current efforts include exploring colorectal cancer screening tailored to risk, and enhancing the uptake of genetic testing and preventive interventions.

PAUL KWO

Professor

Dr Kwo's research focus is on clinical outcomes research in patients with chronic liver diseases. His research group specifically focuses on novel therapies for HCV infection, HBV infection, post-transplant HCV infection, as well as the use of extended donors post liver transplantation. He serves as the principle investigator on multiple international clinical trials.

AIJAZ AHMED

Professor

Dr. Ahmed's research focuses on understanding the factors which impact clinical outcomes of patients with nonalcoholic fatty liver disease (NAFLD) and viral hepatitis. His research group focuses on database analysis to determine epidemiological trends and clinical outcomes NAFLD and viral hepatitis. They also pursue translational research in these areas to provided insight into disease mechanism and future therapies.

MINDIE H. NGUYEN

Professor

Dr. Nguyen's research areas include epidemiology, clinical outcomes, translational studies of liver cancer/tumors and other chronic liver diseases such as hepatitis B, hepatitis C, nonalcoholic fatty liver disease and liver transplant-related issues. She conducts therapeutic clinical trials for these diseases. Her research base includes single-center Stanford-based cohorts, multi-center Bay Area consortium, multi-center US consortia as well as collaborative international cohorts.

RAMSEY CHEUNG

Professor

Dr. Cheung's research goals are to understand the pathogenesis of HCV and mechanism of anti-viral therapy. Dr. Cheung is investigating the healthcare model of hepatitis C care among infected veterans, interaction between hepatitic C infection and alcoholic cirrhosis, and impact of comorbid conditions on the health related quality of life. He is investigating methods to improve care of veterans with chronic hepatitis C, including use of the novel experimental anti-viral therapies as part of clinical trails.

SHAI FRIEDLAND

Professor

Dr. Friedland's research focus includes the study of techniques and outcomes in gastrointestinal endoscopy, improving noninvasive methods for colorectal cancer screening and medical device development in gastroenterology.

SUBHAS BANERJEE

Professor

Dr. Banerjee's research interests include evaluation of advanced endoscopic procedures (ERCP, choledochoscopy and endoscopic ultrasound) in the diagnosis and management of benign and malignant pancreatic and biliary disease. Additional interests include the development of new endoscopic devices and instruments

GEORGE TRIADAFILOPOULOS

Clinical Professor

Dr. Triadafilopoulos' research interest concerns factors involved in the pathogenesis of gastro-esophageal reflux disease (GERD) and its complications, such as Barrett's esophagus. His research group currently studies early stages of metaplastic transformation in Barrett's esophagus and identifies environmental factors that predispose to esophageal metaplasia. They also conduct clinical studies investigating the role of 24-hour dual pH monitoring in the management of patients with reflux-like dyspepsia, esophagitis, and Barrett's esophagus.

JOHN CLARKE

Clinical Professor

Dr. Clarke's research focuses on optimization and characterization of diagnostic studies to evaluate motility disorders, as well the relationship between therapeutic endoscopic techniques and treatment of motility disorders. He conducts several multicenter clinical trials investigating novel therapies for the management of gastroesophageal reflux diseases (GERD).

LINDA NGUYEN

Clinical Professor

Dr. Nguyen's research interests focus on disorder of gastrointestinal motility. Her research group focuses on understanding the role/impact of physiologic testing on clinical care, exploring novel therapies for gastroparesis and expanding the role of neuromodulation in the treatment of GI motility disorders and pain. Her group is also interested in understanding overlapping conditions such as chronic fatigue syndrome and Ehlers-Danlos syndrome as it relates to pathophysiology and impact on gastrointestinal symptoms and outcomes.

SARAH STREETT

Clinical Professor

Dr. Streett's research interests are in fertility and pregnancy in people with IBD, developing precision approaches to IBD therapy, and in the role that the microbiome and diet play its pathogenesis. She is one of the investigators in the Stanford IBD Registry and has research projects focused on optimizing clinical outcomes in IBD, the role of the microbiota and diet in IBD and pregnancy and applying new technologies to individualizing therapy for IBD.

DAVID LIMSUI

Clinical Associate Professor

Dr. Limsui's research focus is to improve clinical outcomes for patients with inflammatory bowel disease. His research interests include identifying predictors of disease course, complications, and efficacy of treatments in Crohn's disease and ulcerative colitis for specific patient populations.

EDITH HO

Clinical Associate Professor

Dr. Ho’s scholarly interests include studying traditional and non-traditional therapies for inflammatory bowel disease, guideline development, and post-graduate programmatic education. She serves on the Guideline Panel of the American Gastroenterological Association Clinical Guidelines Committee, where she authored the 2021 AGA practice guidelines for "Intragastric Balloons in the Management of Obesity" and "Medical Management of Moderate to Severe Luminal and Perianal Fistulizing Crohn's Disease". She also plays an active role on the Educational Affairs Committee of the American College of Gastroenterology, where she has chaired several abstract committees, regularly reviews postgraduate course content, and develops CME content for the American Journal of Gastroenterology.

AFRIN KAMAL

Clinical Assistant Professor

Dr. Kamal’s research focuses on improving health outcomes among patients with esophageal disorders (e.g., gastroesophageal reflux disease, esophageal dysmotility) by harnessing patient activation and motivating behavior change through communication interventions. Her research program spans a range of methods including epidemiological studies, health economic evaluations, and qualitative analysis. Current efforts including developing, refining, and testing a mobile health communication intervention, as well as understanding patient-oriented outcomes including shared decision making, health literacy, and effective patient-physician communication.

KIAN KEYASHIAN

Clinical Associate Professor

Dr. Keyashian's goal is to improve the outcomes and quality of life of patients with inflammatory bowel disease (IBD). In line with these goals, His research focuses on investigating new noninvasive diagnostic tests and identifying biomarkers early in the disease which might predict a more aggressive disease course and need for different therapies. He also investigates new promising effective medications with less side effects.

APARNA GOEL

Clinical Assistant Professor

Dr. Goel's research focus centers on autoimmune liver diseases including autoimmune hepatitis, primary biliary cholangitis, primary sclerosing cholangitis and sarcoidosis. She is the leading institutional principal investigator for several clinical trials for these rare autoimmune liver conditions. Dr. Goel is also involved in several national and international collaborations to further our research and treatment of autoimmune hepatitis, PBC and PSC.

DAVID GOLDENBERG

Clinical Assistant Professor

Dr. Goldenberg’s research is focused on developing innovative strategies for gastrointestinal healthcare delivery. He is focused on the development and evaluation of new technologies with a focus on cost effectiveness and high value care. He has experience in decision analysis, health economics, and quality improvement. He also has pending patents on multiple medical devices that are in development.

LEILA NESHATIAN

Clinical Assistant Professor

Dr. Neshatian's research focuses on neurogastroenterology and motility disorders. She is a member of multiple national and international consortia which develop treatment guidelines for patients with functional Gi disorders.

IRENE SONU

Clinical Associate Professor

Dr. Sonu's research focus is in the diagnosis and clinical management of motility disorders, primarily esophageal diseases and functional gastrointestinal disorders. She also studies the predictors of response to fecal microbiota transplant.

ATULKUMAR SHAH

Clinical Associate Professor

Dr. Shah research focus is to develop tools for recommendation to do follow up colonoscopy in post polypectomy patients. Another area of research is to understand variations in Gut Microbiomes in different ethnicities , difference between first- and second-generation immigrants and clinical implications of these findings. He also focuses on mass level simplified screening methods for NAFLD and acceptable easy implementation tackling NAFLD using current technology methods