- Judged by the investigator to be in good health based upon the results of a medical history, physical examination, vital signs, 12-lead ECG, and clinical safety laboratory tests prior to the initial study drug administration. Clinical safety laboratory test results must be within the laboratory reference ranges or test results that are outside the reference ranges need to be considered non clinically significant in the opinion of the investigator. One retest is allowed during screening period, if deemed appropriate by the investigator.