Participate in Research and Clinical Trials

Cause of Symptom Studies

Miranda van Tilburg, PhD

Role of Energy Metabolism in Functional Abdominal Pain

We are conducting a research study looking at the role of energy metabolism in chronic abdominal pain in children.  We are looking for parents of healthy children AND parents of children who suffer from chronic abdominal pain.

Miranda Van Tilburg, PhD
(919)843-0688                          .

School-Related Seasonality in Pediatric Functional Abdominal Pain

Does your child suffer from stomachaches?  We want to know what factors make children's stomachaches worse or better during the school year.

We are looking for parents of children/adolescents who:

  • Have frequent stomachaches - no prior physician diagnosis needed
  • Attend school from fall to spring and have summers off

The research study will involve 2 online questionnaires.  No visits to UNC are required.  Participants completing the study will be automatically entered in a drawing for a $25 or $50 Amazon gift card redeemable online.

Miranda Van Tilburg, PhD
(919) 843-0688

F³ Study - Finding foods fearful: A study of children and adolescents with a fear of trying new foods

If you think your child has a fear of trying new foods and/or has such a limited food variety that it gets in the way, join our online registry of parents who have a child who struggles with food neophobia.  Your responses will help us to learn more about this behavioral pattern so we can develop new treatments, help parents feel less blamed, and learn more about the development of taste preferences in general.

Miranda Van Tilburg, PhD
(919) 843-0688

Managing Child Abdominal Pain

Volunteers needed to take part in a research study that looks at ways to help parents manage their child's stomachaches.  If you enroll in this study, you will be asked to complete three sessions with a research clinician.  You and your child will also complete five surveys over a period of a year.  No medicines will be used in this study.


You may be eligible if your child is between the ages of 7 and 12, AND experienced at least three stomachaches in the past three months which affected his/her activities.


You will receive up to $175 in total, your child will receive up to $50 in gift cards.

Charles Mclendon


The UNC Center for Functional GI and Motility Disorders is looking for eligible subjects to participate in the DEFINE study.

You may be eligible to participate if:
•  You have experienced any of the following GI symptoms for at least 3-6 months without a definitive diagnosis:
              •    Abdominal pain or discomfort
              •    Bloating
              •    Constipation
              •    Diarrhea
•  You have not had any definitive testing for your GI symptoms
•  You are at least 18 years of age


Treatment Studies


Renuka Kelapure




Need Men and Women who have Chronic Constipation

Eligibility: To be eligible, you must be between the ages of 18-81, and have chronic idiopathic constipation.