CAPTURE Inflammatory Bowel Disease (IBD) is a multi-center, longitudinal study designed with the goal of advancing precision medicine in pediatric IBD. Participants in CAPTURE IBD will continue to receive their usual care at the Children's Hospital of Philadelphia. The study team will ask participants to give blood, stool, and tissue samples at the same time as scheduled IBD clinical visits, endoscopy, or bowel surgery visits. Additionally, participants will be asked to complete electronic surveys at scheduled clinic visits, including any scheduled endoscopy or bowel surgery visits. The study will use the biospecimens and health data as a research resource that can help scientists to answer questions like:

• Can we help guide the selection of the most effective IBD therapies for pediatric and young adult populations?
• Can we help identify new treatments for pediatric patients who are not responding to current available therapies?
• Can we advance our understanding of who are the best candidates for surgery in pediatric Crohn's disease and the best treatment approaches after surgery?

CAPTURE IBD will enroll 3,000 patients, ages 4-21 years old, who have an established or suspected diagnosis of IBD at 12 sites across the United States.

We are trying to learn more about the ways in which adolescents (12-17 years) are involved in decision making related to their chronic condition. We are hoping to partner with families who are planning to attend or recently attended a visit in the Comprehensive Sickle Cell Center, Diabetes Center for Children, Center for Inflammatory Bowel Disease, or the Division of Rheumatology at CHOP.

If you and your child are able to help us, you will each be asked to complete a questionnaire about your experiences during a recent clinic visit. Additionally, a random selection of parents and teens will be asked to complete an interview with our team. All participants will be compensated for their participation in this study.

It is essential that we speak to families before or immediately following their scheduled visit at CHOP.

Kids with IBD (inflammatory bowel disease) often struggle with tiredness and difficulty doing everyday activities, which can make life harder, but there aren't good tools to measure these problems in children. This study aims to create special tools to measure fatigue and disability in kids aged 2-18. Researchers will talk to kids and their parents to find out what issues matter most and use this information, along with medical records, to design the tools. The goal is to help doctors track these problems better and improve care for children with IBD. This study is being done in collaboration with the Shaare Zedek Medical Center. Participants will be compensated for their time and effort, upon completion of the interview.

The RE-EEN Smoothie Study is recruiting patients newly diagnosed with Crohn's Disease who are interested in using diet to help achieve disease remission. The purpose of the study is to evaluate the use of a whole-food based smoothie as Exclusive Enteral Nutrition for Crohn's Disease. In this study, participants will be randomly assigned to receive either a whole-food based smoothie, or formula as Exclusive Enteral Nutrition (EEN) therapy for Crohn's Disease. Participants will work closely with the study dietician to ensure that all of their nutritional needs are met during their participation in the study.