Overview Phase II Placebo-Controlled Study of 4-Aminosalicylic Acid for Ulcerative Colitis Status: Completed Trial end date: 1969-12-31 Target enrollment: Participant gender: Summary OBJECTIVES: I. Assess the safety and efficacy of 4-aminosalicylic acid in patients with mildly to moderately severe ulcerative colitis. Phase: Phase 2 Details Lead Sponsor: National Center for Research Resources (NCRR)Collaborator: University of VermontTreatments: Aminosalicylic Acid