- Clinical laboratory tests (complete blood counts [CBC], blood chemistries, and urinalysis) conducted at the Screening Visit must be within normal limits or clinically acceptable to the investigator/sponsor. An electrocardiogram (ECG) using a centralized trans-telephonic technology at the Screening Visit must be clinically acceptable to the investigator. A chest x-ray performed at the Screening Visit, or within 12 months prior to the Screening Visit, must be clinically acceptable to the investigator.