Therapeutic Study of ONO-4819CD for Ulcerative Colitis
|Study Design:||Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Caregiver, Investigator)
Primary Purpose: Treatment
|Official Title:||A Randomized, Placebo-Controlled Trial of ONO-4819CD for Treatment of Mild to Moderate Ulcerative Colitis.|
- Remission evaluated by DAI scores at 14 and 28 days
- Improvement by DAI scores; Change in DAI scores; CAI scores at 3, 7, 14 and 28 days; Colonoscopic and histopathological scores at 14 and 28 days; Clinical severity and symptom scores at 7, 14 and 28 days; Cytokines at 7, 14 and 28 days; Adverse effects.
|Study Start Date:||February 2006|
|Study Completion Date:||March 2008|
|Estimated Primary Completion Date:||December 2007 (Final data collection date for primary outcome measure)|
Ulcerative colitis is a relapsing disease of unknown cause characterized by bloody diarrhea. Therapy usually involves 5-aminosalicylates, corticosteroids and immunosuppressants. However, steroid resistance and dependency can become problematic. Immunosuppressive drugs, such as azathioprine, are beneficial but may have serious side effects. Therefore, new therapeutic approach is needed.
Prostaglandin E2 is one of the prostanoids, which is involved with innate immunity. PGE2 induces oral tolerance to specific antigen in the small intestine and downregulates the production and release of proinflammatory cytokines by macrophages and neutrophils. Accordingly, PGE2 is considered to be the mediator of mucosal protection.
Recently, it was elucidated that disruption of EP4 gene, which is one of PGE receptors, caused severe colitis in mice. Moreover, EP4-selective agonist (AE1-734) was also revealed to ameliorate severe dextran sodium sulfate-induced colitis in mice. We therefore examined the effects of 2 weeks intravenous EP4-selective agonist therapy for patients with mild to moderate ulcerative colitis.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00296556
|Kyoto University, Graduate School of Medicine|
|Kyoto, Japan, 606-8501|
|Study Chair:||Shuh Narumiya, MD, PhD||Kyoto University, Graduate School of Medicine|
|Principal Investigator:||Tsutomu Chiba, MD, PhD||Kyoto University, Graduate School of Medicine|