This is an open-label, single-center, single dose, non-randomized, sequential, fixed-sequence study, which will evaluate pharmacokinetics (PK) of dolutegravir (DTG) in healthy adult subjects. The study will contain 6 periods with five prototype liquid formulations for evaluation in fasted state. In period 1, 2 and 3 single reference dose of 2 dispersible tablets of 5 milligram DTG will be administered and at least 2 liquid prototype DTG formulations (containing a target total dose of 10mg DTG). There will be a wash-out period of 7 days between each period. In period 4 through 6, there would be options to evaluate additional prototype liquid formulations. The total duration of study will be up to 17 weeks. DTG has been found to be safe and effective in adults infected with human immunodeficiency virus (HIV). DTG dispersible tablets have been developed primarily for use in children from 4 weeks to 6 years of age, and a DTG liquid formulation are is being developed to study the appropriate dose needed for the HIV-exposed and infected neonatal population in the first four weeks of life. Approximately 18 subjects will be enrolled in this study.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
22
DTG will be available as an oral tablet with dosing strength of 5 mg 2 tablet will be dispersed in water will be administered orally for prescribed regimen.
DTG will be available as an oral suspension with dosing strength of 5 mg per milliliter (ml) or 2 mg per ml with miglyol 812N or ethyl cellulose in miglyol 812N as vehicle for suspension administered orally for prescribed regimen.
DTG will be available as an oral solution with dosing strength of 2 mg per ml will be administered orally for prescribed regimen.
GSK Investigational Site
Nottingham, United Kingdom
Area Under the Plasma Concentration Time Curve From Time Zero to the Last Quantifiable Time Point (AUC[0-t]) for DTG
Blood samples were collected at indicated time points and pharmacokinetic (PK) analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
AUC From Time Zero to Infinity (AUC[0-inf]) for DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
Maximum Observed Concentration (Cmax) for DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
Absorption Lag Time (Tlag) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
Time of Maximum Observed Concentration (Tmax) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
Time of Last Quantifiable Concentration (Tlast) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
Elimination Half-life (t½) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
Apparent Elimination Rate Constant (Lambda z) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
Percentage of AUC(0-inf) Extrapolated (%AUCex) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48, and 72 hours post-dose
AUC From Time Zero to 24 Hours (AUC[0-24]) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, and 24 hours post-dose
AUC From Time Zero to 72 Hours (AUC[0-72]) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose
Apparent Oral Clearance (CL/F) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose
Last Quantifiable Concentration (Ct) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose and 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose
Apparent Oral Volume of Distribution (Vz/F) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: Pre-dose, 0.25, 0.5, 0.75, 1, 1.5, 2, 2.5, 3,3.5, 4, 5, 6, 8, 12, 16, 24, 48 and 72 hours post-dose
Concentration at 24hours Post-dose (C24) Following Administration of DTG
Blood samples were collected at indicated time points and PK analysis was performed. PK parameters were determined by non-compartmental methods.
Time frame: 24 hours
Change From Baseline in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP)
SBP and DBP was measured in a supine position after at least 5 minutes of rest for the participant in a quiet setting without any distractions using a completely automated device. Day -1 was considered as Baseline. Change from Baseline was calculated by subtracting Baseline value from the specific time point value.
Time frame: Baseline (Day -1) and Day 4
Change From Baseline in Pulse Rate
Pulse rate was measured in a supine position after at least 5 minutes of rest for the participant in a quiet setting without any distractions using a completely automated device. Day -1 was considered as Baseline. Change from Baseline was calculated by subtracting Baseline value from the specific time point value.
Time frame: Baseline (Day -1) and Day 4
Number of Participants With Non-serious Adverse Events (AEs) and Serious Adverse Events (SAEs)
An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of a study intervention, whether or not considered related to the study intervention. A SAE is defined as any untoward medical occurrence that, at any dose results in death,is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent disability/incapacity, is a congenital anomaly/birth defect, any other situation according to medical or scientific judgement.
Time frame: Up to Week 11
Number of Participants With Clinically Significant Hematology Parameters
Blood samples were collected to analyze the following hematology parameters: Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils, Platelets, hemoglobin, hematocrit, mean corpuscular hemoglobin (MCH), mean corpuscular volume (MCV), percentage reticulocytes and red blood cell count. Data for clinically significant abnormal hematology parameters have been presented. Clinically significant abnormal laboratory findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition.
Time frame: Baseline (Day -1)
Number of Participants With Clinically Significant Chemistry Parameters
Blood samples were collected to analyze the following clinical chemistry parameters: Potassium, calcium, sodium, creatinine, glucose, alkaline phosphatase, Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT), Blood urea nitrogen (BUN), total and direct bilirubin, total protein and creatine kinase. Data for clinically significant abnormal clinical chemistry parameters have been presented. Clinically significant abnormal laboratory findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition.
Time frame: Baseline (Day -1)
Number of Participants With Clinically Significant Urine Parameters
Urine samples were collected to analyze the following urinalysis parameters: specific gravity, potential of hydrogen (pH). Clinically significant abnormal laboratory findings are those which are not associated with the underlying disease, unless judged by the investigator to be more severe than expected for the participant's condition.
Time frame: Baseline (Day -1)
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.