Effect of Carbamazepine on Dolutegravir Pharmacokinetics in Healthy Adult Subjects

You may not be if

• Male/females aged between 18 and 65 years of age inclusive, at the time of signing the informed consent.
• A female subject is eligible to participate if she is of: non-childbearing potential defined as pre-menopausal females with a documented tubal ligation, bilateral oophorectomy or hysterectomy \[for this definition, "documented" refers to the outcome of the investigator's/designee's review of the subject's medical history for study eligibility, as obtained via a verbal interview with the subject or from the subject's medical records\]; or postmenopausal defined as 12 months of spontaneous amenorrhea \[in questionable cases a blood sample with simultaneous follicle stimulating hormone (FSH) \>40 milli international units per milliliter (MIU/mL) and estradiol \<40 picograms (pg)/mL (\<147 picomole per liter (pmol/L) is confirmatory\]; Child-bearing potential with negative pregnancy test as determined by \[serum or urine\] human chorionic gonadotropin (hCG) test at screening or prior to dosing AND Agrees to use one of the contraception methods for an appropriate period of time (as determined by the product label or investigator) prior to the start of dosing to sufficiently minimize the risk of pregnancy at that point. Female subjects must agree to use contraception until 5 days post-last dose. OR has only same-sex partners, when this is her preferred and usual lifestyle.
• Body weight \>=50 kilograms (Kg) for males and \>=45 Kg for females and body mass index (BMI) within the range 18.5 - 31.0 Kg/m\^2 (square meters) (inclusive).
• Alanine aminotransferase, alkaline phosphatase and bilirubin \<= 1.5x Upper Limit of Normal (ULN) (isolated bilirubin \>1.5xULN is acceptable if bilirubin is fractionated and direct bilirubin \<35%). A single repeat is allowed for eligibility determination.
• Based on single corrected QT interval (QTc) value: QT duration corrected for heart rate by Bazett's formula (QTcB) \<450 millisecond (msec); or QTc \<480 msec in subjects with Bundle Branch Block.
• A negative HLA-B\*1502 allele screening assessment for subjects of Asian ethnicity only.
• Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form
• A positive pre-study drug/alcohol screen.
• A positive test for human immunodeficiency virus (HIV) antibody.
• Pregnant females as determined by positive \[serum or urine\] hCG test at screening or prior to dosing.
• History of regular alcohol consumption within 6 months of the study defined as: an average weekly intake of \>14 drinks for males or \>7 drinks for females. One drink is equivalent to 12 g of alcohol: 12 ounces (360 mL) of beer, 5 ounces (150 mL) of wine or 1.5 ounces (45 mL) of 80 proof distilled spirits.
• History of sensitivity to any of the study medications, or components thereof or a history of drug or other allergy that, in the opinion of the investigator or GlaxoSmithKline (GSK) Medical Monitor, contraindicates their participation. Subjects will allergy to tricyclic antidepressants should not be enrolled.
• Where participation in the study would result in donation of blood or blood products in excess of 500 mL within a 56 day period.
• 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).
• Lactating females.
• The subject's systolic blood pressure is outside the range of 90-140 millimeters of mercury (mmHg), or diastolic pressure is outside the range of 45-90 mmHg, or heart rate is outside the range of 50-100 beats per minute (bpm) for female subjects or 45-100 bpm for male subjects. A single repeat is allowed for eligibility determination.
• Platelets, white blood cell count or hemoglobin below the lower limit of normal. A single repeat is allowed for eligibility determination.
• A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening
• Current or chronic history of liver disease, or known hepatic or biliary abnormalities (with the exception of Gilbert's syndrome or asymptomatic gallstones).
• History of suicide ideation or severe depression.
• History of hepatic porphyria (e.g., acute intermittent porphyria, variegate porphyria, porphyria cutanea tarda.
• History of previous bone marrow depression (e.g., prior viral or drug related bone marrow depression)
• Unable to refrain from the use of prescription or non-prescription drugs, including vitamins, herbal and dietary supplements (including St. John's Wort) within 7 days (or 14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is longer) prior to the first dose of study medication, unless in the opinion of the investigator and GSK Medical Monitor the medication will not interfere with the study procedures or compromise subject safety.
• Unwillingness or inability to follow the procedures outlines in the protocol.