Gastroenterology

A Wealth of Experience

We have collaborated with our clients on projects to research gastrointestinal (GI) disease, GI treatment, and complications and comorbidities of GI disease.  Our experience includes:

  • Celiac disease
  • Chronic idiopathic constipation
  • Crohn’s disease
  • Diverticulitis
  • Dyspepsia
  • Gastroesophageal reflux disease (GERD)
  • Pediatric GERD
  • Gastroparesis
  • Gastric cancer
  • Irritable bowel syndrome (IBS) (diarrhea-predominant & constipation-predominant)
  • Opioid-induced constipation
  • Postoperative ileus
  • Ulcerative colitis

Types of Projects

We have implemented studies to help our clients develop strategies in the gastrointestinal (GI) market and to develop and gain market access for products to treat GI diseases and complications arising from treatment of GI illnesses. Recent projects have included:

Our Experts

Elena Rivero
Director, Epidemiology
Rebecca Crawford
Senior Research Scientist, Patient-Centered Outcomes Assessment
Claire Ervin
Senior Director, Patient-Centered Outcomes Assessment
Bintu Sherif
Director, Biostatistics
Ann Colosia
Associate Director, Market Access and Outcomes Strategy
Kati Copley-Merriman
Vice President, Market Access and Outcomes Strategy
David McSorley
Director, Biostatistics, US
Keith Davis
Head, Health Economics
Brett Hauber
Senior Economist and VP, Health Preference Assessment
Stephanie Earnshaw
Vice President, Health Economics
Beth Sherrill
Vice President, Biostatistics
Sean Candrilli
Vice President, Health Economics
James Twiss
Senior Research Scientist, Patient-Centered Outcomes Assessment
Valerie Williams
Senior Director, Psychometrics, Patient-Centered Outcomes Assessment
Carol Mansfield
Senior Economist and Head, Health Preference Assessment
Lynne Hamm
Vice President, Clinical and Medical Services
Kelly Hollis
Vice President, Surveys and Observational Studies
Dawn Odom
Vice President, Head, Biostatistics
Lauren Nelson
Senior Director, Psychometrics, Patient-Centered Outcomes Assessment
Jin Yang
Senior Associate, Market Access and Outcomes Strategy
Sheri Fehnel
Vice President, Patient-Centered Outcomes Assessment
Shahnaz Khan
Executive Director, Market Access and Outcomes Strategy
Caroline Ling
Senior Director, Market Access and Outcomes Strategy
Donald Stull
Head, Data Analytics and Design Strategy
Katherine Houghton
Director, Health Economics
Annete Njue
Director, Market Access and Outcomes Strategy
Allen Mangel
Executive Vice President, RTI Health Solutions

Selected Recent Gastroenterology Publications