Current Research Studies

Gastroenterology – The Healthy Endoscopy Research Study

Condition or Therapy:

Gastrointestinal diseases such as irritable bowel disease, functional gastrointestinal disease and graft vs. host disease



What is the goal of this study?

Researchers at Seattle Children’s Research Institute are conducting studies to better understand functional gastrointestinal diseases, inflammatory bowel disease and graft versus host disease.

We are looking for healthy research volunteers between the ages of 18 to 25 to collect blood, stool, and GI tissue samples from. We want to compare healthy cells to cells from people with gastrointestinal issues. We are studying this to discover why and how people develop these conditions.

We hope the information we learn in this study will help us better predict and treat these diseases in the future.

Who can join the study?

You might be eligible for this study if:

  • You are between the ages of 18 and 25. 
  • You have no abdominal symptoms (vomiting, diarrhea or abdominal pain)
  • You are not on any medications for medical conditions (multivitamins and birth control are OK).
  • You are not pregnant.

What will happen if my child takes part in this study?

If you agree to join this study you will be in the study for about 3 weeks. Participants will have an upper endoscopy and colonoscopy for research purposes. We will collect blood, stool and GI tissue biopsies from participants.

We will ask you to answer some questions about your health and medical history and to come to one clinic visit at Seattle Children's Hospital to determine eligibility before the endoscopy and colonoscopy.

After these visits, you would have an upper and lower endoscopy (EGD and colonoscopy) for research purposes. We would collect one stool sample before your procedure and collect blood and gastrointestinal biopsies (small tissue pinches, the size of a grain of rice) during your procedure.

Participants who take part will get $600 to thank them for their time.

Read more about this study on

Who can I contact for more information?

To take part in The Healthy Endoscopy Research Study or for more information, please contact Madeline Ford by email or at 206-884-7426.

Study Location(s):

Seattle Children's Hospital campus

Principal Investigator:

Dr. Betty Zheng