Gastroenterology​/Hepatology

An Organized Hepatitis B Surveillance Program increases Patient Identification and Optimizes Management
Krisna Chai, Joanna Ready, Andy Avins | RAU | Ongoing

Assessment of the Risks of Biologic Therapy in Elderly Patients with Inflammatory Bowel Disease
Jennifer Chan | CH | Ongoing

Colorectal cancer screening decisions based on predicted risk: the PREcision ScreENing randomized controlled Trial (PRESENT)
Jeff Lee | NCI | Ongoing

Comparative analysis of safety and effectiveness of non-transplant treatment options for early-to-intermediate stage hepatocellular carcinoma across a large, integrated health care system in Northern California
Nizar  Mukhtar | CH | Ongoing

Comprehensive Colorectal Cancer Risk Prediction To Inform Personalized Screening
Doug Corley, Jeff Lee | NCI | Ongoing

Contemporary Probability of Occult Colorectal Cancer in Patients with Colitis-Related Dysplasia undergoing Colectomy
Fernando Velayos | Other | Ongoing

COVID-19 Pandemic: Impact on Colorectal Cancer Screening and Adenoma Surveillance Outcomes (PICASO)
Theodore Levin | Other | Ongoing

De-implementation of Outdated Colonoscopy Surveillance Interval Recommendations Among Patients with Low-risk Adenomas (DESIRE)
T.R. Levin, Jeffrey Fox, Jeffrey Lee | DSGP | Ongoing

Effect of Screening for Hepatocellular Carcinoma on cancer-related and all-cause mortality in patients with cirrhosis-a population-based case control study
Sreepriya Balasubramanian, Julie Schmittdiel | RAU | Ongoing

Effectiveness of Screening for Colorectal Cancer in Average Risk Adults: Colonoscopy vs. FIT (SCOLAR2)
Doug Corley, T.R. Levin | NCI | Ongoing

Esophageal adenocarcinoma risk in patients with Barrett’s Esophagus without dysplasia. Is ongoing surveillance endoscopy warranted?
Tanaaz Baldawala | CH | Ongoing

Hepatocellular Carcinoma Biomarker Study with Glycotest®
Varun Saxena | Other | Ongoing

Implementation success of integrated program on hepatitis B identification, surveillance, and treatment
Krisna Chai & Joanna Ready, Andy Avins | RAU | Ongoing

Improving health outcomes and reducing healthcare costs in individuals with Helicobacter pylori infection in a large, community-based population
Dan Li | PRP | Ongoing

International Travel for Liver and/or Kidney Transplantation
Joanna Ready | Other | Ongoing

K Award
Jeff Lee | NCI | Ongoing

Non-endoscopic management of acute esophageal food impaction (EFI) in the emergency department
Linda Lee | CH | Ongoing

Optimization of Hepatocellular Carcinoma Surveillance Protocols
Varun Saxena, Julie Schmittdiel | DSGP | Ongoing

Optimizing Colorectal Cancer Screening PREcision and Outcomes in CommunIty-baSEd Populations (PRECISE)
Doug Corley, T.R. Levin | NCI | Ongoing

Phase III, randomized, double blind, parallel group, placebo controlled, multicentre study to assess efficacy & safety to adult allogeneic expanded adipose-derived stem cells (eASCs) for treatement of complex perianal fistulising Crohn's disease
Fernando Velayos | Other | Ongoing

PICASO study of pandemic related impact on colorectal cancer screening outcomes
TR Levin | Other | Ongoing

PREDICT PCCC: PREDICTing Post Colonoscopy Colorectal Cancer
T.R. Levin, Jeffrey Lee, Vincent Liu, Charles Quesenberry, Oleg Sofrygin | PRP | Ongoing

PREDICT: Predicting advanced neoplasia on surveillance colonoscopy
TR Levin | Other | Ongoing

Predicting Serious Colonic Growths to Risk Stratify People Coming Due for Surveillance Colonoscopy
TR Levin | PRP | Ongoing

Prednisone, but not biologics or immunomodulators are associated with severe COVID-19 outcomes: A community-based study
Fernando Velayos, Jennifer Dusendang, Julie Schmittdiel | Other | Ongoing

PREEMPT CRC screening trial. Multicenter study of a multi-omics based blood based screening test
TR Levin, Aasma Shaukat | Industry | Ongoing

Prior immunosuppressive therapy and severe illness among patients diagnosed with SARS-CoV-2: a community-based study
Fernando Velayos | Other | Ongoing

Reproductive Health Following Liver Transplant
Sreepriya Balasubramanian | Other | Ongoing

Retreatment of Hepatitis C Infection in Patients who Previously Failed Sofobuvir/Velpatasvir/Voxilpravir
Varun Saxena | Other | Ongoing

Retrospective Validation of MeScore for Identification of Colorectal Cancer (CRC)
Doug Corley, T.R. Levin | Industry | Ongoing

Sarcopenia and Frailty Among Liver Transplant Recipients
Sreepriya Balasubramanian | Other | Ongoing

SARS-CoV-2 Serological Antibody Testing for Disease Surveillance and Clinical Use
Jacek Skarbinski, Larry Kushi, Douglas Corle | NIH | Ongoing

System-Level Capture of Family History Data to Assess Risk of Cancer and Provide Longitudinal Care Coordination
Doug Corley | PCORI | Ongoing

Tenofovir Disoproxil vs. Entecavir on the Risk of Hepatocellular Carcinoma, All-Cause Mortality and Liver Transplantation in Kaiser Permanente Northern California Members with Chronic Hepatitis B Virus
Suk Seo | CH | Ongoing

Volumetric Lase Endomicroscopy in dysplastic Barrett's esophagus: Can we see the invisible lesions?
Ben Hassid | Other | Ongoing

Benefits of Hepatitis C Virus Cure
Varun Saxena, Julie Schmittdiel | RAU | Completed

Burden of psychiatric co-morbidity in patients presenting to the Emergence department with infammatory  bowel disease
Ben Hassid, Shellie Kahane | CH | Completed

Cardiovascular Mortality after Azithromycin versus Amoxicillin Prescription: Pilot Feasibility Study
Jon Zaroff | Pfizer | Completed

Colorectal Cancer Risk in Patients with Diverticulitis: Is Routine Colonoscopy Warranted?
Tanaaz Baldawala | CH | Completed

Comparison of risk factors, clinical behavior and prognosis of microsatellite stable vs. unstable colorectal cancers in a large diverse U.S. population
Li, Dan MD | CH | Completed

Comparisons of Risk factors, Clinical Characteristics, Screening perfomance, and Survival of Microsatellite Stable vs. Unstable Colorectal Cancers in a Large U.S. Populations
Doug Corley, TR Levin, Jeffrey Lee, Minggui Pan | CH | Completed

COVID-19 Complications Are Not More Common Among Immunosuppressed Populations in KPNC
Fernando Velayos, Julie Schmittdiel | RAU | Completed

Early follow up after emergence room presentation reduces repeat emergency care in patients with inflammatory bowel disease
Ben Hassid | CH | Completed

Evaluating the prevalence and predictors of colorectal neoplasia after age 75 in patients with prior colonoscopy between the ages of 70-75
Abhik Roy | CH | Completed

Evaluating the yield and safety of surveillance colonoscopy in elderly patients
Abhik Roy | CH | Completed

Evaluation of a Novel Pharmacy Program for Reducing Variation in Prescribing Biologics for Inflammatory Bowel Disease
Jennifer Chan | CH | Completed

Evaluation of hepatocellular carcinoma management practices and patient survival within the Kaiser Permanente Northern California health care system across age, gender and racial/ethnic groups
Mukhtar, Nizar MD | CH | Completed

Identifying the Determinants and Incidence of Colorectal Neoplasia after a Negative Colonoscopy in Patients with Inflammatory Bowel Disease
Fernando Velayos | CH | Completed

Impact of Colonoscopist on Diagnostic Yield of Colonoscopy in Patients with Inflammatory Bowel Disease
Fernando Velayos | CH | Completed

Incidence of Serrated Polyps in Patients 40-49 Years and Associated Risk for Metachonous Advanced Neoplasia
Gene Ma | CH | Completed

Non-alcoholic Fatty Liver Disease Prevalence and Associated Mortality (NAFLD PAM)
Levin, Theodore R MD | CH | Completed

Optimization of Diagnosis of Serrated Polyps of the Colorectum among KPNC Gastroenterologists and Pathologists
Dan Li | PRP | Completed

Prevalence of Severe Infections in Elderly Patients with Inflammatory Bowel Disease
Benjamin Hassid | CH | Completed

Preventative Health Care Utilization in High Risk Patients with Inflammatory Bowel Disease
Benjamin Hassid | CH | Completed

Rates and Risk Factors of Post-Colonoscopy Colorectal Cancer in a Large, United States Population-based Cohort Study
Jeffrey Lee | CH | Completed

Risk of colorectal cancer in individuals with serrated polyposis
Dan Li | CH | Completed

Risk of Colorectal Cancer in Patients with Diverticulitis: Is Routine Colonoscopy Warranted?
Baldawala, Tanaaz MD | CH | Completed

Risk of COVID-19 pandemic on immunosuppressed populations
Fernando Velayos, Julie Schmittdiel | RAU | Completed

Risk of Hepatocellular Carcinoma in Patients with Isolated Anti-Hepatitis B Core Antibody Positivity: Implications for Surveillance
Jamila Champsi | CH | Completed

Risk of Metachronous Advanced Neoplasia After Colonoscopic Polypectomy in Younger Patients
Gene Ma | CH | Completed

Risk of Metachronous Advanced Neoplasia After Colonscopy in Patients Aged 40-49 Years Compared to Patients Aged 50-59 Years
Gene Ma | CH | Completed

Risk stratification of emergency department patients with lower gastrointestinal bleeding: identifying patients who may be safe for outpatient management
Sean Bouvet | CH | Completed

Telemedicine (Compared to in-Person Gastroenterology Visits) Had High Patient Satisfaction and Comparable Physician Decison-Making
Craig Munroe, Doug Corley | RAU | Completed

The Incidence of Gastric Adenocarcinoma after Helicobacter Pylori Eradication Therapy in a Large U.S. Population
Dan Li | CH | Completed

Travel for liver transplantation: is there a quantifiable benefit for our patients?
Joanna Ready | CH | Completed

Variable Phenotypes of Eosinophilic Esophagitis: Does Gender, Age and Race Play a Role?
Pauline Mysliwiec | CH | Completed

Virtual care in Gastroenterology: An Observational, Cross Sectional study in a community based, integrated health care system
Craig Munroe, Doug Corley | RAU | Completed