The purpose of this study is to test whether a non-invasive dietary intervention during the last trimester of pregnancy can beneficially shift the microbiome, or the bacterial flora of the body, in patients with Crohn’s disease and in their babies. Crohn's disease, a type of inflammatory bowel disease, is a chronic condition of the gastrointestinal tract that is associated with an imbalance in the gut microbiome. Diet may play a role in the development and treatment of Crohn's disease. Accumulating evidence suggests that maternal health and diet during pregnancy and early life have an impact on the baby’s microbiome composition and immune system development, with long-term health consequences, including establishing risk of developing Crohn's disease and other immune-mediated diseases. By changing the maternal microbiome during pregnancy through diet, we hope to be able to promote healthier immune system development in infants born to mothers with Crohn's disease.

We are conducting interviews with both caregivers of patients with CD and patients with CD between the ages of 5 and 17 years. Through these interviews, we will identify and explore the most important symptoms of CD experienced by children and adolescents. We want to understand how symptoms impact their lives and identify the specific language patients and their caregivers use to describe CD symptoms. With this data, we will create a conceptual model of CD, which will be used to develop a measure for Eli Lilly's clinical trials.

Full Study Title: A 52-Week, Multicenter, Randomized, Double-blind, Double-dummy, Placebo and Active-Controlled (Humira), Operationally Seamless Phase 2b/3, Parallel-group Study to Assess the Efficacy and Safety of Investigational drug in Participants With Moderately to Severely Active Crohn's Disease [INTREPID]

The primary objectives of this study is to evaluate the efficacy and safety of the investigational drug versus placebo (Stage 1) and versus Humira® (Stage 2) to achieve endoscopic response and clinical remission in participants with moderately to severely active Crohn's Disease (CD) who have failed or are intolerant to conventional therapy (corticosteroids or immunomodulators), or who are biological-treatment naive, have demonstrated a successful response to prior biological treatment, or who have failed or were intolerant to biological treatment.

Full Study Title: A 54-Week Treatment, Multicenter, Randomized, Double-Blind, Double-Dummy, Placebo and Active-Controlled (Entyvio), Parallel-Group Phase 2 Study to Assess the Efficacy and Safety of A Study Drug in Participants with Moderately to Severely Active Ulcerative Colitis [Expedition]

The primary objective of this study is to evaluate the efficacy and safety of a study drug versus placebo in patients with moderately to severely active Ulcerative Colitis.

To investigate the underlying mechanisms of sex differences in statural growth impairment and to develop a predictive model to identify patients at highest risk for developing growth impairment refractory to standard therapeutic approaches

The purpose of this research study is to compare the effects of the study drugs, PF-06651600 and PF-06700841, with placebo to find out which is better for treating UC. PF-06651600 and PF-06700841 are investigational drugs.

The primary objectives of this study are to determine if an investigational drug called PF-06687234, is safe, tolerable, and effective as an add-on therapy to Infliximab in the treatment of patients with active ulcerative colitis.

The purpose of this research study is to help us understand whether a diet can help children with Ulcerative Colitis (UC) to feel better without needing to take additional medications. Currently, it is thought that UC causes an imbalance in the good and bad bacteria that live inside our gut. We also know that certain foods can change how these good and bad bacteria live, and possibly contribute to UC symptoms. We think a specific diet could help create a better balance in your gut and help you feel better. This study is trying to figure out if a diet can help treat UC.

Full Study Title: A Phase 3 Randomized, Double-Blind, Placebo-Controlled Study, With a Vedolizumab IV Reference Arm, to Evaluate the Efficacy and Safety of Vedolizumab Subcutaneous as Maintenance Therapy in Patients With Moderately to Severely Active Ulcerative Colitis Who Achieved Clinical Response Following Open-Label Vedolizumab Intravenous Therapy. (3027)

The purpose of this study is to assess the effect of vedolizumab subcutaneous (vedolizumab SC) maintenance treatment in participants with moderately to severely active ulcerative colitis (UC) who achieved clinical response following administration of vedolizumab intravenous (vedolizumab IV) induction therapy.

The main objective of this study is to evaluate the health of the bowel at Week 26 after taking vedolizumab using ileocolonoscopy.