A Study of Solid Formulations of JNJ-39393406 in Healthy Male Participants

This is an open-label (all people know the identity of the intervention) and single center study that will be conducted in 3 parts (Part 1, Part 2, and Part 3). The study consists of 3 phases including, the screening phase, treatment phase, and the follow-up phase. Part 1 is a four-way cross-over (method used to switch participants from one treatment arm to another in a clinical study) study to compare the pharmacokinetics, dose-proportionality, safety and tolerability of JNJ 39393406 following single dose oral administration of two solid oral formulations (X and Y). Approximately 12 participants will be enrolled in Part 1. Part 2 is two-way cross-over study in a separate group of participants to assess pharmacokinetics in fasting condition and the relative bioavailability (the extent to which a medication or other substance becomes available to the body) of the selected solid formulation from Part 1 compared with a solution formulation. Approximately 8 participants will be enrolled in Part 2. In Part 3, the single and repeated dose pharmacokinetics after administration of the selected formulation from Part 1 will be assessed for 7 consecutive days. The same participants will participate in Parts 2 and 3 of the study. Safety will be evaluated by the assessment of adverse events, clinical laboratory tests, electrocardiogram, vital signs, physical examination, and neurological examination. The duration of participation in the study for an individual participant will be approximately 8 weeks (including screening and follow up visit).

Inclusion criteria

• Healthy male participants
• Body mass index (BMI) between 18 and 30 kg/m2 (BMI is calculated as weight [kilogram] divided by square of height [meter])
• Willing to adhere to the prohibitions and restrictions specified in the protocol
• Must have signed an informed consent document indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study

Exclusion criteria

• Clinically significant abnormal values for clinical chemistry, hematology or urinalysis at screening or admission
• Clinically significant abnormal physical examination, neurological examination, vital signs or 12 lead electrocardiogram at screening
• Significant history of or current significant medical illness including (but not limited to) cardiac arrhythmias or other cardiac disease, hematological disease, bronchospastic respiratory disease, dyspnea, diabetes mellitus, renal or hepatic insufficiency, thyroid disease, infection, or any other illness that the investigator considers clinically significant
• Significant history of or current psychiatric or neurological illness
• Serology positive for hepatitis B surface antigen, hepatitis C antibodies or human immunodeficiency virus antibodies at screening