RecruitingPhase 1Drug trialA Study to Investigate the Safety, Tolerability, and Pharmacokinetics of ONO-6414 Administered Orally in Healthy Adult Participants and Patients With Active Ulcerative ColitisA study to investigate the safety, tolerability, and pharmacokinetics (PK) of ONO-6414 orally in healthy adult participants and in patients with active ulcerative colitis (UC).