Effect of Armodafinil on Simulated Driving

Inclusion criteria 1. Male or females, between age 18 and 35 years of age, inclusive. 2. Body mass index (BMI) from 18.5 to 29.9 kg/m2, inclusive. 3. A valid driver's license. 4. Healthy on the basis of physical examination, medical history, vital signs. 5. Absence of clinically significant abnormalities in the subject's sleep history. The study physician will base this decision on the Epworth Sleepiness Scale and a discussion with the subject about his or her sleep history. 6. Female subjects must be postmenopausal (for at least 6 months), surgically sterile, or abstinent; or, if of childbearing potential and sexually active, be practicing an effective method of birth control (e.g., intrauterine device, double-barrier method, male partner sterilization) before entry and throughout the study; have a negative urine pregnancy test at screening, and a negative urine pregnancy test prior to each experimental session. Steroidal contraceptives have been shown to interact with the study drug and are not an acceptable form of contraception for this study (subjects taking steroidal contraceptive drugs are ineligible for this study). 7. Agree not to consume any alcohol 24 hours prior to any study session and until discharge from the unit. 8. Agree not to consume any grapefruit or grapefruit juice 24 hours prior to dosing and until discharge from the unit. 9. Agree not to use armodafinil or modafinil-containing medications 2 weeks prior to or during any study session (aside from what is administered for the study). 10. Agree not to use any other medication that acts on the central nervous system (prescription or nonprescription) 1 week prior to or during any study session (caffeine is the only exception, subjects are recommended to avoid caffeine for one week prior to a study session, but are required to avoid caffeine for 24 hours prior to and during a study session). 11. The subject is able to understand and comply with protocol requirements, instructions and protocol-stated restrictions and is likely to complete the study as planned. Subject is willing to provide informed consent. Exclusion criteria 1. History of current significant medical illness including (but not limited to) cardiovascular thrombotic events, myocardial infarction, stroke or other cardiac disease, hypertension, peptic ulcer disease or gastrointestinal bleeding, hematological disease, bronchospastic respiratory disease, asthma, diabetes mellitus, renal or hepatic insufficiency, psychiatric disorders, or any other illness that the investigator considers should exclude the subject. 2. Subjects who have a clinically significant sleep abnormality. 3. Subjects who are shift workers. 4. Evidence of use of drugs of abuse (including but not limited to barbiturates, opiates, cocaine, cannabinoids, amphetamines, and benzodiazepines) assessed via questioning the subject. 5. Subjects that are a smoker and smoke more than 10 cigarettes per day. 6. Known allergies or hypersensitivity to armodafinil or modafinil. 7. The subject has contraindications to take armodafinil. 8. Clinically significant abnormal physical examination, vital signs (e.g. systolic blood pressure\>140 mmHg, diastolic blood pressure\>90 mmHg, heart rate \>100 bpm and \<45 bpm) or 12-lead ECG (e.g. corrected QT\>450 msec) at screening or abnormal vital signs prior to study drug dosing. 9. The subject has participated in a clinical trial and has received an investigational product within the following time period prior to the first dosing day in the current study: 30 days, 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer). 10. Pregnant or breast-feeding. 11. Taking a steroidal contraceptive drug or drugs. 12. Donation of 1 or more units (approximately 450 mL) of blood or acute loss of an equivalent amount of blood within 60 days prior to study drug administration. 13. Recent history of surgery; within the past 3 months prior to screening. 14. Clinically significant acute illness within 7 days prior to study drug administration. 15. Strenuous exercise that is more excessive than their normal routine, 48 hours prior to each session, until they are discharged from the unit. 16. Any condition that, in the opinion of the investigator, would compromise the well-being of the subject or the study or prevent the subject from meeting or performing study requirements. 17. Unwillingness or inability to follow the procedures outlined in the protocol. 18. Employees of the investigator or study center, with direct involvement in the proposed study or other studies under the direction of that investigator or study center, as well as family members of the employees or the investigator. 19. Subjects living outside of Gainesville