PA-001 Ph.1 Study in Healthy and Elderly Subjects

Inclusion Criteria: * Groups of healthy subjects: Males or females, of any race, between 18 and 65 years of age, inclusive. * Group(s) of elderly subjects: Males or females, of any race, \> 65 years of age. * Body mass index between 18.0 and 32.0 kg/m2, inclusive. * In good health, or have stable, chronic, non life threatening medical conditions, determined by no clinically significant findings * Females will not be pregnant or lactating, and females of childbearing potential and males will agree to use contraception. * Able to comprehend and willing to sign an ICF and to abide by the study restrictions. Exclusion Criteria: * Significant history or clinical manifestation of any metabolic, allergic, dermatological, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, neurological, respiratory, endocrine, or psychiatric disorder that, in the opinion of the investigator (or designee), could impact subject safety or the objectives of the study. * Have signs and symptoms of any other liver disease, except nonalcoholic fatty liver disease, or any of the following, as determined from clinical laboratory evaluations: * History of significant hypersensitivity, intolerance, or allergy to any drug compound, food, or other substance, as determined by the investigator (or designee). * Positive hepatitis panel or positive human immunodeficiency virus test. * Positive SARS-CoV-2 test at screening or check in. * Have signs which shows something was not right in the …