- Acceptable laboratory values that indicate adequate baseline organ function at time of screening. Laboratory values are considered acceptable if the severity is less than or equal to Grade 1, according to the AIDS Clinical Trials Group (ACTG) Division of Acquired Immunodeficiency Syndrome (of the National Institute of Allergy and Infectious Diseases / National Institutes of Health) (DAIDS) Grading Scale and within normal reference ranges for other laboratory parameters not defined by DAIDS. Participation of subjects with abnormal laboratory values greater than Grade 1 (e.g., Creatine phosphokinase (CPK), amylase, triglycerides) is subject to approval by the Boehringer Ingelheim Pharmaceuticals, Inc. (BIPI) clinical monitor