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

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

Selected Recent Gastroenterology Publications