Overview

A Study to Assess The Relative Bioavailability of New Tablet Formulations of GSK1265744 in Healthy Adult Subjects

Status:
Completed
Trial end date:
2014-06-01
Target enrollment:
0
Participant gender:
All
Summary
This study will evaluate two new GSK1265744 sodium salt tablet formulations and provide data for selection of one of these tablet formulations for use in Phase 3. This is a single-center, randomized, two part, open-label, crossover study in healthy adult subjects. Part A is a randomized, open-label, 3-way balanced cross-over design in 24 subjects to assess the oral bioavailability of two GSK1265744 sodium salt tablet formulations relative to the current GSK1265744 sodium salt formulation being used in the phase IIb studies under fasting conditions. Part A treatment periods will be separated by a 14 day washout. After completion of Part A, preliminary PK data will be analyzed and a decision will be made based on pre-specified criteria, as to which formulation will be used to conduct Part B. Fifteen subjects who will have participated in Part A will participate in Part B and receive the selected formulation with a moderate fat meal. All treatments will be administered as single 30 mg doses of GSK1265744. Safety evaluations and serial PK samples will be collected during each treatment period. A follow-up visit will occur 10 - 14 days after the last dose of study drug.
Phase:
Phase 1
Accepts Healthy Volunteers?
Accepts Healthy Volunteers
Details
Lead Sponsor:
ViiV Healthcare
Treatments:
Cabotegravir
Criteria
Inclusion Criteria:

- Male and females aged between 18 and 65 years of age inclusive, at the time of signing
the informed consent.

- Healthy as determined by a responsible and experienced physician, based on a medical
evaluation including medical history, physical examination, laboratory tests and
cardiac monitoring.

- Body weight >= 50 kilogram (kg) and body mass index (BMI) within the range 18.5-31.0
kg/meter^2 (inclusive).

- A female subject is eligible to participate if she is of: non-childbearing potential
defined as pre-menopausal females with a documented tubal ligation 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 picogram
(pg)/ml (<147 picomole per liter [pmol/L]) is confirmatory]; child-bearing potential
with negative pregnancy test as determined by a 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 the
final study visit; OR has only same-sex partners, when this is her preferred and usual
lifestyle.

- Male subjects with female partners of child-bearing potential must agree to use one of
the contraception methods listed in protocol. This criterion must be followed from the
time of the first dose of study medication until 14 days post-last dose of study
medication.

- Capable of giving written informed consent, which includes compliance with the
requirements and restrictions listed in the consent form.

- Alanine aminotransferase (ALT), 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%).

Exclusion Criteria:

- 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 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 grams 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 heparin or heparin-induced thrombocytopenia.

- 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.

- A history of regular use of tobacco- or nicotine-containing products within 6 months
prior to screening.

- A positive pre-study Hepatitis B surface antigen or positive Hepatitis C antibody
result within 3 months of screening

- A positive pre-study drug/alcohol screen.

- A positive test for human immunodeficiency virus (HIV) antibody.

- The subject's systolic blood pressure is outside the range of 90-140 millimeter of
mercury (mmHg), or diastolic blood pressure is outside the range of 45-90 mmHg.

- History of clinically significant cardiovascular disease including: exclusion criteria
for screening ECG (a single repeat is allowed for eligibility determination) - Heart
rate of <45 and >100 beats per minute for males and <50 and >100 beats per minute for
females; QRS duration >120 milliseconds (msec); QT duration corrected for heart rate
by Bazett's formula (QTc B) >450 milliseconds. Evidence of previous myocardial
infarction (pathologic Q waves, S-T segment changes (except early repolarization);
History/evidence of symptomatic arrhythmia, angina/ischemia, coronary artery bypass
grafting (CABG) surgery or percutaneous transluminal coronary angioplasty (PCTA) or
any clinically significant cardiac disease; Any conduction abnormality (including but
not specific to left or right complete bundle branch block, AV block [2nd degree (type
II) or higher], Wolf Parkinson White [WPW] syndrome); Sinus pauses > 3 seconds. Any
significant arrhythmia which, in the opinion of the principal Investigator and GSK
Medical Monitor, will interfere with the safety for the individual subject.
Non-sustained (>=3 consecutive ventricular ectopic beats) or sustained ventricular
tachycardia.

- 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).

- Exposure to more than four new chemical entities within 12 months prior to the first
dosing day.