['heart failure']
['neladenoson bialanate (bay1067197)', 'neladenoson bialanate (bay1067197)', 'neladenoson bialanate (bay1067197)', 'neladenoson bialanate (bay1067197)', 'neladenoson bialanate (bay1067197)', 'placebo']

        Inclusion Criteria:

          -  Men or women aged 45 years and older

          -  Diagnosis of chronic heart failure, NYHA (New York Heart Association) class II-IV,
             LVEF (left ventricular ejection fraction) ≥ 45% and elevated NT-proBNP

        Exclusion Criteria:

          -  Acute decompensated heart failure within the past 4 weeks

          -  Inability to exercise

          -  Previous diagnosis of HFrEF (heart failure with reduced ejection fraction) (LVEF <
             40%)
      