Study to Evaluate the Safety, Efficacy, and Pharmacokinetics of Budesonide Extended-release Tablets in Pediatric Subjects Aged 5 to 17 Years With Active, Mild to Moderate Ulcerative Colitis

This study is testing whether budesonide extended-release tablets (an anti-inflammatory medication) are safe and effective for children and teenagers with mild to moderate active ulcerative colitis, a chronic inflammation of the large intestine. **You may be eligible if...** - You are between 5 and 17 years old and weigh more than 13.6 kg - You have been diagnosed with ulcerative colitis based on clinical, endoscopic, and biopsy findings - Your colitis is currently active but mild to moderate (Mayo score between 4 and 10) - Any current medications for colitis have been at a stable dose for at least 6 weeks **You may NOT be eligible if...** - You have Crohn's disease or indeterminate colitis (rather than ulcerative colitis) - Your disease only affects a very small area of the rectum (distal proctitis within 15 cm) - You have had surgery on your colon or rectum - You have serious infections or other significant medical conditions - You are pregnant or breastfeeding Talk to your doctor to see if this trial is right for you.