['healthy']
['placebo', 'myk-461']

        Inclusion Criteria:

          -  Normal body mass index (BMI)

          -  Normal LVEF

          -  Normal electrocardiogram (ECG)

          -  Females must not be breastfeeding and must be permanently sterilized or are
             postmenopausal.

        Exclusion Criteria:

          -  Any structural abnormalities on echocardiography

          -  Positive results of HIV test and/or seropositive for HCV or HBV.
      