Etrasimod is a medication being studied to understand how well it is absorbed by the body when taken in different forms. In this trial, participants took etrasimod in the form of mini tablets. These mini tablets were mixed with different types of food, like applesauce, chocolate pudding, and yogurt, to see how these combinations affect the medication’s absorption compared to taking the tablets with just water. The goal is to find out if the food affects how much of the medication gets into the bloodstream and how quickly it happens. This information can help determine the best way to take etrasimod for it to work effectively.

Ulcerative Colitis – Ulcerative colitis is a chronic inflammatory condition affecting the colon and rectum. It involves continuous inflammation of the innermost lining of the large intestine, leading to ulcers. Symptoms often include abdominal pain, diarrhea, and rectal bleeding. The disease typically progresses with periods of exacerbation and remission. Over time, the inflammation can cause the colon to become less effective at absorbing nutrients and water. This condition is part of a group of diseases known as inflammatory bowel disease.

Alopecia Areata – Alopecia areata is an autoimmune disorder characterized by sudden, patchy hair loss on the scalp or other areas of the body. The immune system mistakenly attacks hair follicles, leading to hair loss. The progression of the disease can vary, with some individuals experiencing regrowth of hair while others may have persistent hair loss. The condition can occur at any age and affects both men and women. It is not associated with any physical pain or other health issues. The extent of hair loss and regrowth varies greatly among individuals.

Atopic Dermatitis – Atopic dermatitis, commonly known as eczema, is a chronic skin condition characterized by dry, itchy, and inflamed skin. It often begins in childhood and can persist into adulthood. The skin becomes red and irritated, and scratching can lead to further skin damage and infection. The condition tends to flare up periodically, with symptoms worsening at times. Environmental factors, allergens, and stress can trigger or exacerbate symptoms. It is part of a group of conditions known as atopic diseases, which also includes asthma and allergic rhinitis.

Eosinophilic Esophagitis – Eosinophilic esophagitis is a chronic immune system disease in which eosinophils, a type of white blood cell, build up in the esophagus. This accumulation leads to inflammation and damage to the esophageal tissue. Symptoms can include difficulty swallowing, food impaction, and chest pain. The disease can progress to cause narrowing of the esophagus, making it difficult for food to pass through. It is often associated with food allergies and other allergic conditions. The condition can affect individuals of all ages, but it is more commonly diagnosed in children and young adults.