TMC125-TiDP2-C197: A Phase I Trial to Investigate the Pharmacokinetic Interaction Between Lopinavir/Ritonavir and TMC125 Both at Steady-state in Healthy Volunteers.

Inclusion Criteria:

• Non-smoking or smoking no more than 10 cigarettes, or 2 cigars, or 2 pipes per day for at least 3 months prior to selection
• Normal weight as defined by a Quetelet Index (Body Mass Index [BMI], weight in kg divided by the square of height in meters) of 18.0 to 30.0 kg/m2, extremes included
• Informed Consent Form (ICF) signed voluntarily before the first trial-related activity
• Able to comply with protocol requirements
• Healthy on the basis of a medical evaluation that reveals the absence of any clinically relevant abnormality and includes a physical examination, medical history, electrocardiogram (ECG), vital signs, and the results of blood biochemistry, hematology and a urinalysis carried out at screening.

Exclusion Criteria:

• No positive HIV-1 or HIV-2 test at Screening
• No hepatitis A infection (confirmed by hepatitis A antibody IgM), or hepatitis B infection (confirmed by hepatitis B surface antigen), or hepatitis C infection (confirmed by hepatitis C virus antibody) at study screening
• No currently active or underlying gastro-intestinal, cardiovascular, nervous system, psychiatric, metabolic, renal, hepatic, respiratory, inflammatory, or infectious disease
• No currently significant diarrhea, gastric stasis, or constipation that in the investigator's opinion could influence drug absorption or bioavailability
• No history of significant skin disease such as, but not limited to, rash or eruptions, drug allergies, food allergies, dermatitis, eczema, psoriasis, or urticaria
• No previously demonstrated clinically significant allergy or hypersensitivity to any of the excipients of the investigational medication administered in this trial
• No use of concomitant medication, including over-the-counter products and dietary supplements. Over-the-counter systemic medication must have been discontinued at least 7 days prior to the first dose of study medication
• prescribed medication and all products containing Hypericum perforatum must have been discontinued at least 14 days before the first dose of study medication, except for paracetamol/acetaminophen and ibuprofen.