This Phase 1, single-dose study will be conducted in adult female subjects (N = 16) who are in general good health and selected for participation in the study according to the selection criteria. This study will assess the effect of food on the pharmacokinetics of PT2385 Tablets. The study will consist of two periods and will be conducted in a crossover fashion.

Subjects will be randomized in equal numbers to two sequences of meal conditions (fasting and non-fasting). Serial blood samples will be collected for after dose administration in each period. Subjects will be confined at the clinical research for a portion of each period.

Inclusion Criteria:

• Female between 18 and 45 years of age;
• If of childbearing potential, willing to practice methods of birth control;
• If of childbearing potential, must be non-pregnant and non-lactating and have a negative serum pregnancy test result prior to enrollment into the trial;
• Has a body mass index (BMI) between 19 and 32 kg/m2;
• Willing and able to give written informed consent for study participation and provide consent for access to medical data;
• Willing and able to cooperate with all aspects of the protocol.

Exclusion Criteria:

• Any vaccination within 30 days before start of this study and throughout the study;
• Use of or need for any systemic drug(s) including vitamins or herbal preparations other than drugs used for contraception, within 30 days before entry into the study or during the study;
• Use of aspirin, non-steroidal anti-inflammatory agents, or acetaminophen within 5 days prior to the ingestion of the study drug;
• Donation or receipt of blood or blood components within the 4 weeks prior to the start of the study;
• Any diagnostic or intervention procedure requiring a contrast agent within the 30 days prior to the start of study participation;
• Abnormal blood pressure or pulse rate;
• Abnormal screening electrocardiogram (ECG);
• Use of tobacco or nicotine-containing products (e.g., cigarettes, cigars, chewing tobacco, snuff, etc.);
• Consumption of alcohol or xanthine-containing products;
• Consumption of grapefruit, star fruit, Seville oranges, or products containing any of these ingredients;
• Receipt of any investigational agent within 30 days;
• A positive history of drug abuse or a positive test result for drug(s) of abuse;
• Female subjects who are planning a pregnancy or are pregnant or lactating.