BAY94-8862 Dose Finding Trial in Subjects With Chronic Heart Failure and Mild (Part A) or Moderate (Part B) Chronic Kidney Disease

Two 1.25 mg BAY94-8862 and 2 placebo tablets for duration of 4 weeks

Four 1.25 mg BAY94-8862 tablets for duration of 4 weeks

One 10 mg BAY94-8862 tablet for duration of 4 weeks

Part B only: Four 1.25 mg BAY94-8862 tablets in the morning and four tablets in the evening for duration of 4 weeks

Placebo tablets for duration of 4 weeks

Part B only: 25 mg spironolactone once daily with up-titration to 50 mg once daily starting at day 15, if serum potassium is less or equal to 4.8 mmol/L, for duration of 4 weeks