Douglas K Rex MD

Gastroenterology•Indianapolis, IN

Distinguished Professor of Medicine Emeritus, Indiana University School of Medicine,

Join to View Full Profile

550 University Blvd# UH4100Indianapolis, IN 46202
Phone+1 317-278-8741

Education & Training

Indiana University School of MedicineResidency, Internal Medicine, 1984 - 1985
Indiana University School of MedicineFellowship, Gastroenterology, 1982 - 1984
Indiana University School of MedicineResidency, Internal Medicine, 1980 - 1982
Indiana University School of MedicineClass of 1980

Certifications & Licensure

IN State Medical License 1980 - 2025
FL State Medical License 2020 - 2022
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

America's Top Doctors Castle Connolly, 2002-2014
America's Top Doctors for Cancer Castle Connolly, 2009-2013
Indianapolis Monthly Castle Connolly, 2007, 2009-2011, 2013
Fellow (AGAF) American Gastroenterological Association, 2010
Top MD Consumers Checkbook
Whos Who in Medicine and Healthcare Marquis Whos Who
Fellow (FACG) American College of Gastroenterology
Join now to see all

Clinical Trials

Evaluation of the PillCam™ Colon Capsule Endoscopy (PCCE) in the Visualization of the Colon Start of enrollment: 2006 Jun 01
Terminated
Cap-fitted Colonoscopy: a Randomized, Tandem Colonoscopy Study of Adenoma Miss Rates Start of enrollment: 2006 Nov 01
Completed
Not Applicable
Does Inspection During Insertion Improve Adenoma Yields During Colonoscopy? Start of enrollment: 2009 Dec 01
Completed
Not Applicable
Performance Study of the Invendo C20 Colonoscope System in Colorectal Cancer Screening Start of enrollment: 2009 Nov 01
Completed
Narrow-Band Imaging Versus Standard White Light for the Detection of Serrated Lesions in the Proximal Colon Start of enrollment: 2011 Apr 01
Completed
Not Applicable
Novel Biophotonics Methodology for Colon Cancer Screening Start of enrollment: 2008 Feb 01
Completed
A Phase III Study of the Efficacy and Safety of Remimazolam Compared to Placebo and Midazolam in Colonoscopy Patients Start of enrollment: 2015 Mar 30
Completed
Phase 3
Standard Colonoscopy Versus Colonoscopy With Endocuff Vision Start of enrollment: 2017 Dec 11
Completed
Not Applicable
Post-resection Treatment of Large Colon Polyps Start of enrollment: 2018 Oct 16
Completed
Not Applicable
A Prospective Randomized Study Comparing the Adenoma Detection Yield of SC, AI and Combined AI and G-EYE® Start of enrollment: 2022 May 01
Not yet recruiting
Not Applicable
Roles: Contact, Principal Investigator
Join now to see all

Publications & Presentations

PubMed

AGA Clinical Practice Update on Endoscopic Lifting Agents: Commentary.
Tobias Zuchelli, Amit Patel, Alessandro Repici, Douglas K Rex
Clinical Gastroenterology and Hepatology. 2025-06-01
Clinical management of patients with colorectal intramucosal carcinoma compared to high-grade dysplasia and T1 colorectal cancer.
Edgard Medawar, Roupen Djinbachian, Douglas K Rex, Michael Vieth, Heiko Pohl
Gastrointestinal Endoscopy. 2025-06-01
Risk of Post-polypectomy Bleeding After Colorectal Endoscopic Mucosal Resection in Patients with Chronic Kidney Disease: A Propensity-Matched Analysis of the US Collab...
Azizullah Beran, Khaled Elfert, Feenalie N Patel, Mouhand Mohamed, Daryl Ramai
Digestive Diseases and Sciences. 2025-06-01

Lectures

Optimal Colonoscopy Technique and Polypectomy
AGC 2018 Annual Scientific Meeting, Philadelphia, PA - 10/7/2018
Colorectal Cancer Prevention
AGC 2018 Annual Scientific Meeting, Philadelphia, PA - 10/7/2018
Divergent Long-Term Detection Rates of Proximal and Distal Advanced Neoplasia in Fecal Immunochemical Test Screening Programs: A Retrospective Cohort Study
Digestive Disease Week, Orlando, Florida - 5/18/2013

Press Mentions

Stay up to Date: Healio Recaps Pivotal Guidelines for GI, Liver Disease in 2024 (So Far)September 17th, 2024
Five Key Measures to Ensure a Quality ColonoscopySeptember 10th, 2024
ACG/ASGE Updates ADR Recs, Adds 2 Metrics as Priority Quality Indicators for ColonoscopyAugust 27th, 2024
Join now to see all

Grant Support

Benzoate And Phenylacetate In The Treatment Of Adult Hepatic EncephalopathyNational Center For Research Resources1985

Professional Memberships