Study to Evaluate the Efficacy and Safety of Selonsertib in Participants With Moderate to Advanced Diabetic Kidney Disease

Following the screening period, eligible participants will enroll into a Run-in period of at least 5 weeks and receive placebo to match SEL for at least 1 week and then SEL for at least 4 weeks. After completing Run-in period, eligible participants will be randomized and receive either SEL or placebo to match SEL for at least 48 weeks.