The purpose of this study is to assess the bioavailability, safety, tolerability and pharmacokinetics of two tablet formulations as compared to the capsule formulation suspended in liquid.

A single-dose, three period, complete cross-over study to evaluate the relative bioavailability, pharmacokinetics, safety and tolerability of two candidate tablet formulations of ABT-072 when compared to that of the original capsule formulation suspended in liquid as a reference.

Inclusion Criteria:

• Overall healthy subjects, non-childbearing females included.

Exclusion Criteria:

• Use of any medications (prescription and over-the-counter), vitamins, or herbal supplements within the 2-week period prior to the first dose of study drug administration or within 10 half-lives of the respective medication, whichever is longer.
• Pregnant or breast-feeding female.
• Positive test result for hepatitis A virus immunoglobulin M (HAV-IgM), hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCV Ab), or HIV antibodies (HIV Ab).
• Positive screen for drugs of abuse, alcohol, or cotinine.
• Clinically significant cardiovascular, respiratory (except mild asthma), renal, gastrointestinal, hematologic, neurologic, thyroid, or any uncontrolled medical illness or psychiatric disorder.
• Use of tobacco or nicotine-containing products within the 6-month period preceding study drug administration.