- Has a history of alcohol or substance abuse within the past year, as determined by the investigator or a positive urine drug screen at screening (Visit 2) or during treatment: 1) Unwilling to refrain from the use of excessive alcohol or illicit drugs and adhere to other protocol-stated restrictions while participating in the study, 2) History of alcohol abuse defined as an average weekly intake of greater than 21 units or an average daily intake of greater than three units (males) or defined as an average weekly intake of greater than 14 units or an average daily intake of greater than two units (females). One unit is equivalent to a half-pint of beer or one measure of spirits or one glass of wine, 2) The investigator should exercise their medical judgment to determine if a urine drug screen is indicated