Skip to content

A Study in Type 2 Diabetics of Single and Multiple Doses of Orally Administered GSK1292263 to Investigate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics

A Study in Type II Diabetic Subjects of Single and Multiple Doses of Orally Administered GSK1292263 to Investigate the Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of the Compound Alone and When Co-administered With Sitagliptin or Metformin

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01119846
Enrollment
100
Registered
2010-05-10
Start date
2009-06-05
Completion date
2010-03-19
Last updated
2018-01-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus, Type 2

Keywords

Tolerability, Pharmacokinetics, Safety, Pharmacodynamics, Glucose

Brief summary

The purpose of this study is to see if GSK1292263 is safe and well-tolerated when administered to type 2 diabetics, and to get preliminary information about whether it may be effective in the treatment of type 2 diabetes.

Detailed description

Data from this study will be used to assess the potential of GSK1292263 as a treatment for T2DM, and will aid the design and dose selection of future studies of longer duration in T2DM subjects that will evaluate GSK1292263 alone or in combination with other anti-diabetic drugs.

Interventions

GSK1292263 is an immediate-release round, white, film-coated tablet provided in 3 strengths, 25mg, 75mg and 200mg being developed for the treatment of type 2 diabetes.

Matching placebo to active drug GSK1292263

DRUGSitagliptin

Sitagliptin (Januvia) 100mg tablets are beige, round, film-coated tablets with 277 on one side.

Sponsors

GlaxoSmithKline
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 60 Years
Healthy volunteers
No

Inclusion criteria

* Male or female subjects, 18 - 60 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 or hysterectomy; or postmenopausal defined as 12 months of spontaneous amenorrhea. FSH and estradiol levels will be checked at Screening for postmenopausal women. Simultaneous follicle stimulating hormone (FSH) \> 40 MlU/ml and estradiol \< 40pg/ml (\<140pmol/L) is confirmatory. * Except as noted elsewhere, subjects should have no significant known medical conditions other than T2DM, as determined by a responsible physician, based on a medical evaluation including medical history, physical examination, laboratory tests and ECGs. A subject with a clinical abnormality or laboratory parameters that meets

Exclusion criteria

but is outside the reference range for the population being studied may be included only if the Investigator and the GSK Medical Monitor agree that the finding is unlikely to introduce additional risk factors and will not interfere with the study procedures. * BMI (body mass index) within the range 22-35 kg/m2, inclusive. * Part A - T2DM diagnosed by American Diabetes Association criteria at least 3 months prior to Screening with: * Currently controlled by diet and exercise. * Fasting plasma glucose (FPG) level \<= 250mg/dL at the Screening visit * FPG level \<= 250mg/dL on Day -1 * HbA1c between 6.5 and 11%, inclusive, at Screening visit * For Parts B and C, T2DM diagnosed by American Diabetes Association criteria at least 3 months prior to Screening with: * T2DM currently controlled by diet and exercise, or, if on medication, subjects must be treating their T2DM using one of the following regimens: * Metformin as monotherapy * Sulfonylurea as monotherapy * Metformin and sulfonylurea in combination, if both components are being administered at doses that are half their maximum dose or less * DPP-IV inhibitors, either as monotherapy or in combination with other agent(s) on this list at half maximal dose or less * Exenatide, either as monotherapy or in combination with other agent(s) on this list at half maximal dose or less * For subjects that are being screened for Parts B and C, all doses of anti-diabetic medication must have been stable for at least 3 months prior to Screening, and the subject must be willing to wash out from their anti-diabetic medications from Day -7 through post-last-dose of Period 2 (Part B) or Day -7 through Day 15 (Part C). * Fasting plasma glucose (FPG) level \<= 220mg/dL at the Screening visit * FPG level \<= 250mg/dL on Day -1 * HbA1c between 7 and 11%, inclusive, at Screening visit * Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form.

Design outcomes

Primary

MeasureTime frameDescription
Part C: Summary of Change From Baseline in Fasted InsulinBaseline (Day 1 pre-dose) and Day -1, 13 and 14Blood samples were collected fasting pre-breakfast and pre-morning dose (PD time 0) on Days -1, 13 and 14 and then at 10, 20, 30, 60, 90, 120, 180 min after eating the standardized breakfast meal tolerance test. For lunch (4 hour post-morning dose) samples were collected just before the meal and after starting each meal: 0.5, 1, 1.5, 2 and 3 hours. For the evening meal (10 hour post-morning dose), BID dosing groups followed the sequence of sampling, food and dosing as for breakfast (PD sample immediately before meal, eat and then dose), then 0.5, 1, 1.5, 2 and 3 hours post-dinner. A sample was also collected 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value minus post-Baseline value. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part C: Summary of Time Invariance Ratio (Rs) of CmaxDays 1, 7, 13 and 14The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post-breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected. Cmax for one participant from 50 BID x 14 day was not analyzed due to positive definite G Matrix.
Part A: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 1 of each treatment periodBlood samples for the determination of insulin were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. The unit of measure is mL/min×1/micro international unit×10\^4 (mL/min×1/µIU×10\^4).
Part C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay -1, 13 and 14Blood samples for the determination of insulin were collected fasting pre-breakfast and then pre-morning dose (PD time 0) on Days -1, 13 and 14, and then at 10, 20, 30, 60, 90, 120, 180 min after eating the standardized breakfast meal tolerance test. For lunch (approximately 4 hour post-morning dose) samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5, 2 and 3 hours. For the evening meal (approximately 10 hour post-morning dose), BID dosing groups followed the sequence of sampling, food and dosing as for breakfast (PD sample immediately before meal, eat and then dose), then 0.5, 1, 1.5, 2 and 3 hours post-dinner. A sample was also collected 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected (example: 24 hours post first-dose = pre-dose \[time 0\] for the second dose).
Part A: Summary of Change From Baseline in Fasted GlucoseBaseline (Day 1 pre-dose) and Day 1 (24 hours)Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value from post-Baseline value. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseUp to Day 1 (24 hours)Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinUp to Day 1 (24 hours)Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseUp to Day 1 (24 hours)Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinUp to Day 1 (24 hours)Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the OGTT Derived Parameters: Disposition IndexUp to Day 1 (24 hours)Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated by multiplying insulin glucose index with insulin sensitivity index. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioUp to Day 1 (24 hours)Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated as insulin/glucose ratio was calculated as insulin AUC(0-3\]/glucose AUC(0-3) during OGTT, while glucose/insulin ratio was calculated as glucose AUC(0-3)/insulin AUC(0-3) during OGTT. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the OGTT Derived Parameters: Insulin Glucose IndexUp to Day 1 (24 hours)Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated as insulin (30 min) - insulin (0 min)/glucose (30 min) - glucose (0 min). It was calculated as insulin (30 min) - insulin (0 min)/glucose (30 min) - glucose (0 min). The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Summary of the OGTT Derived Parameters: Insulin Sensitivity IndexUp to Day 1 (24 hours)Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated as 10,000/square root (\[mean plasma insulin × mean plasma glucose during OGTT or meal challenge\] × \[fasting plasma glucose × fasting plasma insulin\]). The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part C: Summary of Change From Baseline in Fasted GlucoseBaseline (Day 1 pre-dose) and Day -1, 13 and 14.Blood samples were collected fasting pre-breakfast and pre-morning dose (PD time 0) on Days -1, 13 and 14 and then at 10, 20, 30, 60, 90, 120, 180 min after eating the standardized breakfast meal tolerance test. For lunch (4 hour post-morning dose) samples were collected just before the meal and after starting each meal: 0.5, 1, 1.5, 2 and 3 hours. For the evening meal (10 hour post-morning dose), BID dosing groups followed the sequence of sampling, food and dosing as for breakfast (PD sample immediately before meal, eat and then dose), then 0.5, 1, 1.5, 2 and 3 hours post-dinner. A sample was also collected 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value minus post-Baseline value. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.
Part A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Up to Week 10An AE was defined as any untoward medical occurrence (MO) in a participant temporally associated with the use of a medicinal product (MP), whether or not considered related to the MP and can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition.
Part A: Number of Participants With Abnormal Hematology Parameters of Potential Clinical Importance (PCI)Up to Week 10Hematology parameters included platelet count, red blood cell (RBC) count, mean corpuscular volume (MCV), total neutrophils, white blood cell count (WBC; absolute), mean corpuscular hemoglobin (MCH), lymphocytes, mean corpuscular hemoglobin concentration (MCHC), monocytes, hemoglobin, eosinophils, hematocrit, reticulocytes and basophils. It was assessed on Screening, Day -1, Day 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters (hemoglobin, high) for which at least one value of PCI was reported are summarized. Null data is not presented.
Part A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIUp to Week 10Clinical chemistry parameters included blood urea nitrogen (BUN), potassium, aspartate aminotransferase (AST), total and direct bilirubin, creatinine, chloride, alanine aminotransferase (ALT), uric acid, glucose fasting, gamma glutamyltransferase (GGT), albumin, sodium, magnesium, phosphorus inorganic, calcium, total carbon dioxide (CO2), alkaline phosphatase (ALP), triglycerides, total cholesterol, low-density lipoprotein (LDL) cholesterol, free fatty acid (non-esterified fatty acids; \[NEFA\]), high-density lipoprotein (HDL) cholesterol and total protein. It was assessed on Screening, Day -1, Day 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.
Part A: Number of Participants With Abnormal Electrocardiogram (ECG) FindingsUp to Week 10Twelve-lead ECGs was obtained in a supine position at each time point during the study using an ECG machine that automatically measured PR, QRS, QT and QTc intervals (QT duration corrected for heart rate by Bazett's formula \[QTcB\] and Fridericia's formula \[QTcF\]). Participants with abnormal clinically significant ECG findings is presented. It was assessed on Screening, Day 1 at pre-dose, 1, 2, 3, 4, 6, 10, 16, 24 hours and Follow-up (7 to 10 days after final discharge).
Part A: Number of Participants With Abnormal Vital Signs of PCIUp to Week 10.Systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse rate measurements were recorded at each time point, assessment was performed after resting in a supine or semi-supine position for at least 10 minutes. Participants with abnormal clinically significant vital signs findings is presented. It was assessed on Screening, Day -1, 1, 2 (pre-dose, 1, 3, 4, 6, 10, 16 and 24 hours of each treatment period) and Follow-up (7 to10 days after final discharge).
Part A: Summary of Maximum Plasma Concentration (Cmax)Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours on Day 1 of each treatment periodThe first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. Blood samples for the determination of PKs was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours.
Part A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours on Day 1 of each treatment periodThe time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. Blood samples for the determination of PK was collected on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours.
Part A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours on Day 1 of each treatment periodThe AUC 0-24 and AUC 0-t determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours.
Part C: Number of Participants With AEs and SAEsUp to Week 7An AE was defined as any untoward MO in a participant temporally associated with the use of a MP, whether or not considered related to the MP and can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition.
Part C: Number of Participants With Abnormal Hematology Parameters of PCIUp to Week 7Hematology parameters included platelet count, RBC count, MCV, total neutrophils, WBC absolute, MCH, lymphocytes, MCHC, monocytes, hemoglobin, eosinophils, hematocrit, reticulocytes and basophils. It was assessed on Screening, Day -2 (can be non-fasting) and prior to breakfast (early in the morning, fasting) on Days 1, 7 and 14, and on Day 15 prior to checkout, (=24 hours post-dose) of each treatment period and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.
Part C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIUp to Week 7Clinical chemistry parameters included BUN, potassium, AST, total and direct bilirubin, creatinine, chloride, ALT, uric acid, glucose fasting, GGT, albumin, sodium, magnesium, phosphorus inorganic, calcium, total CO2, ALP, triglycerides, total cholesterol, LDL cholesterol, free fatty acid (NEFA), HDL cholesterol and total protein. It was assessed on Screening, Day -2 (can be non-fasting) and prior to breakfast (early in the morning, fasting) on Days 1, 7 and 14, and on Day 15 prior to checkout, (=24 hours post-dose) of each treatment period and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.
Part C: Number of Participants With Significant ECG AbnormalitiesUp to Week 7Twelve-lead ECGs was obtained in a supine position at each time point during the study using an ECG machine that automatically measured PR, QRS, QT and QTc intervals (QTcB and QTcF). Participants with abnormal clinically significant ECG findings is presented. It was assessed on Screening, on Day -1, 1, 7, 13 and 14 pre-breakfast dose (fasting) and at 1, 3, 6, 9, 12 and 24 hours of each treatment period and Follow-up (7 to 10 days after final discharge).
Part C: Number of Participants With Abnormal Vital Signs of PCIUp to Week 7SBP, DBP and pulse rate measurements were recorded at each time point, assessment was performed after resting in a supine or semi-supine position for at least 10 minutes. Participants with abnormal clinically significant vital signs findings is presented. It was assessed on Screening, on Days -1 to 14 in a fasting state early in the morning (prior to morning dosing on days 1-14) and at Follow-up. On Days 1, 7, 13 and 14, it was also taken at 1, 3, 6, 9, 12 and 24 hours after the morning dose each treatment period and Follow-up (7 to 10 days after final discharge).
Part C: Summary of Plasma CmaxDays 1, 7, 13 and 14The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.
Part C: Summary of T-max and T-lagDays 1, 7, 13 and 14The time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.
Part C: Summary of AUC0-10, AUC0-12 and AUC0-24Days 1, 7, 13 and 14The AUC0-10, AUC0-12 and AUC0-24 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For QD and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post- breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.
Part C: Summary of Accumulation Ratio (Ro)Days 1, 7, 13 and 14Ro was derived as follows: Ro = Day 13 (AUC0-24)/Day 1 (AUC0-24) for once daily dosing; Ro = Day 13 AM (AUC0-10)/Day 1 AM (AUC0-10) for BID dosing and Ro = Day 13 (AUC0-24)/Day 1 (AUC0-24) for BID dosing. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected. Data presented for Day 13 and Day 14.
Part C: Summary of Time Invariance Ratio (Rs) of AUC0-10 for BID Dose of GSK1292263Days 1, 7, 13 and 14The AUC0-10 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post-breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.
Part C: Summary of Time Invariance Ratio (Rs) of AUC0-24 for Once Daily Dose of GSK1292263Days 1, 7, 13 and 14The AUC0-24 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post-breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Secondary

MeasureTime frameDescription
Part B: Number of Participants With Abnormal Hematology Parameters of PCIUp to Week 7Hematology parameters included platelet count, RBC count, MCV, total neutrophils, WBC absolute, MCH, lymphocytes, MCHC, monocytes, hemoglobin, eosinophils, hematocrit, reticulocytes and basophils. It was assessed on Screening, Day -1, 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.
Part B: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIUp to Week 7Clinical chemistry parameters included BUN, potassium, AST, total and direct bilirubin, creatinine, chloride, ALT, uric acid, glucose fasting, GGT, albumin, sodium, magnesium, phosphorus inorganic, calcium, total CO2, ALP, triglycerides, total cholesterol, LDL cholesterol, free fatty acid (NEFA), HDL cholesterol and total protein. It was assessed on Screening, Day -1, 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters (Glucose, High) for which at least one value of PCI was reported are summarized. Null data is not presented.
Part B: Number of Participants With Significant ECG AbnormalitiesUp to Week 7Twelve-lead ECGs was obtained in a supine position at each time point during the study using an ECG machine that automatically measured PR, QRS, QT and QTc intervals (QTcB and QTcF). Participants with abnormal clinically significant ECG findings is presented. It was assessed on Screening, Day 1 at pre-dose, 1, 2, 3, 4, 6, 10, 16, 24 hours and Follow-up (7 -10 days after final discharge).
Part B: Number of Participants With Abnormal Vital Signs of PCIUp to Week 7SBP, DBP and pulse rate measurements were recorded at each time point, assessment was performed after resting in a supine or semi-supine position for at least 10 min. Participants with abnormal clinically significant vital signs findings is presented. It was assessed on Screening, Day -1, 1, 2 (pre-dose, 1, 3, 4, 6, 10, 16 and 24 hours of each treatment period) and Follow-up (7 -10 days after final discharge).
Part B: Summary of Plasma CmaxPre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours on Day 1 of each treatment period.The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours.
Part B: Summary of T-max and T-lagPre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours on Day 1 of each treatment periodThe time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours.
Part B: Summary of AUC0-t and AUC0-24Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours on Day 1 of each treatment periodThe AUC 0-24 and AUC 0-t determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours.
Part B: Summary of Change From Baseline in Fasted GlucoseBaseline (Day 1 pre-dose) and Day 1 (24 hours)Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value from post-Baseline value.
Part B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinBaseline (Day 1 pre-dose) and Day 1 (24 hours)Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period. For breakfast, lunch and evening meal in Part B, samples were collected just after the meal and at the following times after starting each meal: 0.5, 1 and 2 hours. Samples were also collected in Part B at 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value from post-Baseline value.
Part C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administeredDays 1, 7, 13 and 14The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (= immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.
Part C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredDays 1, 7, 13 and 14The time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (= immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.
Part C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredDays 1, 7, 13 and 14The AUC0-10, AUC0-12 and AUC0-24 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post- breakfast), 1, 2, 4 (= pre lunch), 6, 10 (= immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.
Part B: Number of Participants With AEs and SAEsUp to Week 7An AE was defined as any untoward MO in a participant temporally associated with the use of a MP, whether or not considered related to the MP and can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition.

Countries

United States

Participant flow

Recruitment details

A total of 13, 4 and 83 participants with type 2 diabetes mellitus (T2DM) were randomized in Part A, B and C, respectively. The study was conducted from 05 June 2009 to 19 March 2010 at 8 centers in the United States.

Pre-assignment details

The maximum time a participant spent in Part A, B and C of the study was approximately 10, 7 and 7 weeks, respectively including the 28-days period allotted for screening assessments in all parts.

Participants by arm

ArmCount
Part A
In this part (Cohort 1), drug naïve T2DM participants were randomized to receive escalating doses of GSK1292263 25 mg, 150 mg and 800 mg in each of 3 periods along with placebo and sitagliptin 100 mg orally in the other 2 periods in fasted condition. These doses were administered to the participants in an ascending sequence irrespective of the randomization order for placebo and sitagliptin. In Part A, study drug was administered 2 hours before the OGTT.
13
Part B
In this part (Cohort 2), eligible T2DM participants on mono-therapy or sub-maximal anti-diabetic medications washed off these medications for 1 week and received a single dose of GSK1292263 800 mg orally in fasted or fed condition. Before participants in Part B were dosed, the safety and tolerability of GSK1292263 800 mg administered in the fasted state to 9 participants in Part A was reviewed to ensure that it was safe to proceed. In Part B, study drug was administered 30 minutes (min) after breakfast and lunch and dinner was approximately 4 and 10 hours after dosing.
4
Part C
Participants were randomized to 14 days of dosing with 4 dose regimens of GSK1292263 (final doses were: 50 mg BID, 150 mg BID, 300 mg BID, and 600 mg once daily) or matching placebo (administered BID) or open-label sitagliptin 100 mg (dosed once daily with the morning dose of GSK1292263). In this part (Cohort 3 and Cohort 4), if Cohort 3 was dosed once daily, participants in Cohort 4 were enrolled to investigate the safety, tolerability, PK and PD of GSK1292263 when dosed in a BID regimen and vice versa.
83
Total100

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Overall StudyAdverse Event106
Overall StudyPhysician Decision100
Overall StudyProtocol Violation001
Overall StudyWithdrawal by Subject004

Baseline characteristics

CharacteristicPart APart BPart CTotal
Age, Customized
18-60 Years
13 Participants4 Participants83 Participants100 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants1 Participants1 Participants
Race (NIH/OMB)
Black or African American
1 Participants1 Participants6 Participants8 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
12 Participants3 Participants75 Participants90 Participants
Sex: Female, Male
Female
4 Participants1 Participants22 Participants27 Participants
Sex: Female, Male
Male
9 Participants3 Participants61 Participants73 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
EG010
affected / at risk
EG011
affected / at risk
EG012
affected / at risk
deaths
Total, all-cause mortality
0 / 110 / 120 / 120 / 110 / 130 / 40 / 40 / 140 / 160 / 120 / 140 / 150 / 12
other
Total, other adverse events
2 / 112 / 122 / 124 / 112 / 130 / 41 / 44 / 145 / 161 / 124 / 144 / 152 / 12
serious
Total, serious adverse events
0 / 110 / 120 / 120 / 110 / 130 / 40 / 40 / 140 / 160 / 120 / 140 / 150 / 12

Outcome results

Primary

Part A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCI

Clinical chemistry parameters included blood urea nitrogen (BUN), potassium, aspartate aminotransferase (AST), total and direct bilirubin, creatinine, chloride, alanine aminotransferase (ALT), uric acid, glucose fasting, gamma glutamyltransferase (GGT), albumin, sodium, magnesium, phosphorus inorganic, calcium, total carbon dioxide (CO2), alkaline phosphatase (ALP), triglycerides, total cholesterol, low-density lipoprotein (LDL) cholesterol, free fatty acid (non-esterified fatty acids; \[NEFA\]), high-density lipoprotein (HDL) cholesterol and total protein. It was assessed on Screening, Day -1, Day 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.

Time frame: Up to Week 10

Population: Safety Population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High0 Participants
Part A: PlaceboPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIMagnesium, High0 Participants
Part A: PlaceboPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low1 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High1 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIMagnesium, High0 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High0 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIMagnesium, High0 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High0 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIMagnesium, High0 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High0 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIMagnesium, High1 Participants
Primary

Part A: Number of Participants With Abnormal Electrocardiogram (ECG) Findings

Twelve-lead ECGs was obtained in a supine position at each time point during the study using an ECG machine that automatically measured PR, QRS, QT and QTc intervals (QT duration corrected for heart rate by Bazett's formula \[QTcB\] and Fridericia's formula \[QTcF\]). Participants with abnormal clinically significant ECG findings is presented. It was assessed on Screening, Day 1 at pre-dose, 1, 2, 3, 4, 6, 10, 16, 24 hours and Follow-up (7 to 10 days after final discharge).

Time frame: Up to Week 10

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart A: Number of Participants With Abnormal Electrocardiogram (ECG) Findings0 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Abnormal Electrocardiogram (ECG) Findings0 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Abnormal Electrocardiogram (ECG) Findings0 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Abnormal Electrocardiogram (ECG) Findings0 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Abnormal Electrocardiogram (ECG) Findings0 Participants
Primary

Part A: Number of Participants With Abnormal Hematology Parameters of Potential Clinical Importance (PCI)

Hematology parameters included platelet count, red blood cell (RBC) count, mean corpuscular volume (MCV), total neutrophils, white blood cell count (WBC; absolute), mean corpuscular hemoglobin (MCH), lymphocytes, mean corpuscular hemoglobin concentration (MCHC), monocytes, hemoglobin, eosinophils, hematocrit, reticulocytes and basophils. It was assessed on Screening, Day -1, Day 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters (hemoglobin, high) for which at least one value of PCI was reported are summarized. Null data is not presented.

Time frame: Up to Week 10

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart A: Number of Participants With Abnormal Hematology Parameters of Potential Clinical Importance (PCI)0 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Abnormal Hematology Parameters of Potential Clinical Importance (PCI)0 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Abnormal Hematology Parameters of Potential Clinical Importance (PCI)1 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Abnormal Hematology Parameters of Potential Clinical Importance (PCI)0 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Abnormal Hematology Parameters of Potential Clinical Importance (PCI)1 Participants
Primary

Part A: Number of Participants With Abnormal Vital Signs of PCI

Systolic blood pressure (SBP), diastolic blood pressure (DBP) and pulse rate measurements were recorded at each time point, assessment was performed after resting in a supine or semi-supine position for at least 10 minutes. Participants with abnormal clinically significant vital signs findings is presented. It was assessed on Screening, Day -1, 1, 2 (pre-dose, 1, 3, 4, 6, 10, 16 and 24 hours of each treatment period) and Follow-up (7 to10 days after final discharge).

Time frame: Up to Week 10.

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart A: Number of Participants With Abnormal Vital Signs of PCI0 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Abnormal Vital Signs of PCI0 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Abnormal Vital Signs of PCI0 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Abnormal Vital Signs of PCI0 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Abnormal Vital Signs of PCI0 Participants
Primary

Part A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)

An AE was defined as any untoward medical occurrence (MO) in a participant temporally associated with the use of a medicinal product (MP), whether or not considered related to the MP and can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition.

Time frame: Up to Week 10

Population: Safety Population comprised of all participants enrolled in the study and who had received at least one dose of study drug.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any AE2 Participants
Part A: PlaceboPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any AE2 Participants
Part A: GSK1292263 25 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any AE2 Participants
Part A: GSK1292263 150 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
Part A: GSK1292263 800 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any AE4 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any AE2 Participants
Part A: Sitagliptin 100 mgPart A: Number of Participants With Adverse Events (AEs) and Serious Adverse Events (SAEs)Any SAE0 Participants
Primary

Part A: Relationships Between GSK1292263 Drug Exposures and Insulin Sensitivity

Blood samples for the determination of insulin were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. The unit of measure is mL/min×1/micro international unit×10\^4 (mL/min×1/µIU×10\^4).

Time frame: Day 1 of each treatment period

Population: The PK/PD Population included all participants who were in both the PK and PD populations, as well as those in the PD population who received the placebo treatment.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Relationships Between GSK1292263 Drug Exposures and Insulin Sensitivity1.4 mL/min×1/µIU×10^4Geometric Coefficient of Variation 98
Part A: GSK1292263 25 mgPart A: Relationships Between GSK1292263 Drug Exposures and Insulin Sensitivity2.1 mL/min×1/µIU×10^4Geometric Coefficient of Variation 67
Part A: GSK1292263 150 mgPart A: Relationships Between GSK1292263 Drug Exposures and Insulin Sensitivity2.3 mL/min×1/µIU×10^4Geometric Coefficient of Variation 51
Part A: GSK1292263 800 mgPart A: Relationships Between GSK1292263 Drug Exposures and Insulin Sensitivity2.8 mL/min×1/µIU×10^4Geometric Coefficient of Variation 86
Part A: Sitagliptin 100 mgPart A: Relationships Between GSK1292263 Drug Exposures and Insulin Sensitivity2.7 mL/min×1/µIU×10^4Geometric Coefficient of Variation 86
Primary

Part A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)

The AUC 0-24 and AUC 0-t determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours.

Time frame: Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours on Day 1 of each treatment period

Population: Pharmacokinetic Population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)AUC 0-24524.30 Nanograms×hour per millilitersGeometric Coefficient of Variation 21.138
Part A: PlaceboPart A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)AUC 0-t526.88 Nanograms×hour per millilitersGeometric Coefficient of Variation 20.208
Part A: GSK1292263 25 mgPart A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)AUC 0-241684.86 Nanograms×hour per millilitersGeometric Coefficient of Variation 31.009
Part A: GSK1292263 25 mgPart A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)AUC 0-t1685.44 Nanograms×hour per millilitersGeometric Coefficient of Variation 31.015
Part A: GSK1292263 150 mgPart A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)AUC 0-243985.72 Nanograms×hour per millilitersGeometric Coefficient of Variation 28.449
Part A: GSK1292263 150 mgPart A: Summary of Area Under the Concentration-time Curve From Time Zero (Pre-dose) to Last Time of Quantifiable Concentration (AUC0-t) and Area Under the Concentration-time Curve From Zero (Pre-dose) to 24 Hours (AUC0-24)AUC 0-t3979.35 Nanograms×hour per millilitersGeometric Coefficient of Variation 27.457
90% CI: [0.5282, 0.6375]
90% CI: [0.5325, 0.6291]
Primary

Part A: Summary of Change From Baseline in Fasted Glucose

Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value from post-Baseline value. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Baseline (Day 1 pre-dose) and Day 1 (24 hours)

Population: The PD Population included participants from the Safety Population who had any PD parameter estimates from any portion of the study.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of Change From Baseline in Fasted Glucose0.52 Millimoles per LiterGeometric Coefficient of Variation 795.822
Part A: GSK1292263 25 mgPart A: Summary of Change From Baseline in Fasted Glucose1.49 Millimoles per LiterGeometric Coefficient of Variation 848.906
Part A: GSK1292263 150 mgPart A: Summary of Change From Baseline in Fasted Glucose0.53 Millimoles per LiterGeometric Coefficient of Variation 533.024
Part A: GSK1292263 800 mgPart A: Summary of Change From Baseline in Fasted Glucose0.87 Millimoles per LiterGeometric Coefficient of Variation 653.005
Part A: Sitagliptin 100 mgPart A: Summary of Change From Baseline in Fasted Glucose0.58 Millimoles per LiterGeometric Coefficient of Variation -220.27
95% CI: [-1.17, 1.1]
95% CI: [-0.9, 1.35]
95% CI: [-1.1, 1.19]
95% CI: [-1.8, 0.45]
Primary

Part A: Summary of Maximum Plasma Concentration (Cmax)

The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. Blood samples for the determination of PKs was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours.

Time frame: Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours on Day 1 of each treatment period

Population: The Pharmacokinetic Population included all participants from the Safety Population who have any pharmacokinetic parameter estimates from any portion of the study.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of Maximum Plasma Concentration (Cmax)52.04 Nanograms per millilitersGeometric Coefficient of Variation 17.147
Part A: GSK1292263 25 mgPart A: Summary of Maximum Plasma Concentration (Cmax)165.62 Nanograms per millilitersGeometric Coefficient of Variation 37.467
Part A: GSK1292263 150 mgPart A: Summary of Maximum Plasma Concentration (Cmax)379.79 Nanograms per millilitersGeometric Coefficient of Variation 28.171
90% CI: [0.523, 0.6335]
Primary

Part A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of Insulin

Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, iAUC 0-123.77 Pico moles per LiterGeometric Coefficient of Variation 54.721
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, AUC 0-125.66 Pico moles per LiterGeometric Coefficient of Variation 34.886
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, AUC 0-121533.54 Pico moles per LiterGeometric Coefficient of Variation 32.331
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, AUC 0-1223.04 Pico moles per LiterGeometric Coefficient of Variation 30.099
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, iAUC 0-123.35 Pico moles per LiterGeometric Coefficient of Variation 54.162
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, iAUC 0-12920.62 Pico moles per LiterGeometric Coefficient of Variation 34.611
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, AUC 0-128.11 Pico moles per LiterGeometric Coefficient of Variation 27.492
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, iAUC 0-1235.36 Pico moles per LiterGeometric Coefficient of Variation 25.387
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, iAUC 0-1210.34 Pico moles per LiterGeometric Coefficient of Variation 45.444
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, AUC 0-122.14 Pico moles per LiterGeometric Coefficient of Variation 1.291
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, AUC 0-1239.99 Pico moles per LiterGeometric Coefficient of Variation 23.579
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, iAUC 0-13211.95 Pico moles per LiterGeometric Coefficient of Variation 64.157
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, AUC 0-13267.68 Pico moles per LiterGeometric Coefficient of Variation 63.475
Part A: PlaceboPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, iAUC 0-120.05 Pico moles per LiterGeometric Coefficient of Variation 172.301
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, AUC 0-1229.72 Pico moles per LiterGeometric Coefficient of Variation 26.567
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, iAUC 0-1238.77 Pico moles per LiterGeometric Coefficient of Variation 29.579
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, AUC 0-125.83 Pico moles per LiterGeometric Coefficient of Variation 41.037
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, AUC 0-1244.91 Pico moles per LiterGeometric Coefficient of Variation 28.596
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, iAUC 0-13199.42 Pico moles per LiterGeometric Coefficient of Variation 46.245
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, iAUC 0-12874.41 Pico moles per LiterGeometric Coefficient of Variation 39.842
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, iAUC 0-120.06 Pico moles per LiterGeometric Coefficient of Variation 346.41
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, iAUC 0-123.34 Pico moles per LiterGeometric Coefficient of Variation 57.021
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, iAUC 0-122.81 Pico moles per LiterGeometric Coefficient of Variation 194.661
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, AUC 0-121518.81 Pico moles per LiterGeometric Coefficient of Variation 31.728
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, AUC 0-13272.04 Pico moles per LiterGeometric Coefficient of Variation 45.425
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, AUC 0-122.12 Pico moles per LiterGeometric Coefficient of Variation 0.815
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, AUC 0-129.55 Pico moles per LiterGeometric Coefficient of Variation 39.783
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, iAUC 0-1215.04 Pico moles per LiterGeometric Coefficient of Variation 38.723
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, AUC 0-1210.62 Pico moles per LiterGeometric Coefficient of Variation 37.541
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, iAUC 0-122.60 Pico moles per LiterGeometric Coefficient of Variation 148.08
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, AUC 0-13277.10 Pico moles per LiterGeometric Coefficient of Variation 53.966
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, AUC 0-1244.07 Pico moles per LiterGeometric Coefficient of Variation 26.903
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, iAUC 0-1238.52 Pico moles per LiterGeometric Coefficient of Variation 28.757
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, AUC 0-122.26 Pico moles per LiterGeometric Coefficient of Variation 10.182
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, iAUC 0-12821.46 Pico moles per LiterGeometric Coefficient of Variation 34.785
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, AUC 0-1230.46 Pico moles per LiterGeometric Coefficient of Variation 34.393
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, iAUC 0-120.12 Pico moles per LiterGeometric Coefficient of Variation 153.295
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, AUC 0-121523.99 Pico moles per LiterGeometric Coefficient of Variation 26.37
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, AUC 0-126.13 Pico moles per LiterGeometric Coefficient of Variation 29.049
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, iAUC 0-123.64 Pico moles per LiterGeometric Coefficient of Variation 42.846
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, iAUC 0-13207.02 Pico moles per LiterGeometric Coefficient of Variation 55.393
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, iAUC 0-1215.56 Pico moles per LiterGeometric Coefficient of Variation 54.028
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, iAUC 0-120.07 Pico moles per LiterGeometric Coefficient of Variation 191.029
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, iAUC 0-12846.34 Pico moles per LiterGeometric Coefficient of Variation 29.692
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, AUC 0-1251.21 Pico moles per LiterGeometric Coefficient of Variation 26.338
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, iAUC 0-1242.15 Pico moles per LiterGeometric Coefficient of Variation 24.08
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, AUC 0-122.20 Pico moles per LiterGeometric Coefficient of Variation 7.629
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, AUC 0-121513.90 Pico moles per LiterGeometric Coefficient of Variation 23.322
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, AUC 0-127.44 Pico moles per LiterGeometric Coefficient of Variation 39.162
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, iAUC 0-124.33 Pico moles per LiterGeometric Coefficient of Variation 41.068
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, AUC 0-129.34 Pico moles per LiterGeometric Coefficient of Variation 52.831
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, iAUC 0-121.97 Pico moles per LiterGeometric Coefficient of Variation 83.805
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, AUC 0-13280.90 Pico moles per LiterGeometric Coefficient of Variation 46.494
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, iAUC 0-13208.19 Pico moles per LiterGeometric Coefficient of Variation 50.315
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, AUC 0-1235.38 Pico moles per LiterGeometric Coefficient of Variation 34.413
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, iAUC 0-1217.74 Pico moles per LiterGeometric Coefficient of Variation 43.836
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, iAUC 0-122.36 Pico moles per LiterGeometric Coefficient of Variation 71.247
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, AUC 0-121418.12 Pico moles per LiterGeometric Coefficient of Variation 31.849
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, iAUC 0-13151.53 Pico moles per LiterGeometric Coefficient of Variation 51.789
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 total, AUC 0-124.04 Pico moles per LiterGeometric Coefficient of Variation 39.915
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, iAUC 0-123.05 Pico moles per LiterGeometric Coefficient of Variation 50.439
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGLP-1 active, AUC 0-125.35 Pico moles per LiterGeometric Coefficient of Variation 30.858
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, iAUC 0-123.79 Pico moles per LiterGeometric Coefficient of Variation 105.916
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinPYY total, AUC 0-1217.67 Pico moles per LiterGeometric Coefficient of Variation 32.393
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, iAUC 0-1228.03 Pico moles per LiterGeometric Coefficient of Variation 31.909
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGIP total, AUC 0-1232.76 Pico moles per LiterGeometric Coefficient of Variation 28.341
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinC-peptide, iAUC 0-12836.98 Pico moles per LiterGeometric Coefficient of Variation 35.373
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinInsulin, AUC 0-13210.66 Pico moles per LiterGeometric Coefficient of Variation 48.374
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, iAUC 0-121.86 Pico moles per LiterGeometric Coefficient of Variation 50.802
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-12 and iAUC 0-12 of Glucagon, Glucagon-like Peptide (GLP; Active and Total)-1, C-peptide, Total Glucose-dependent Insulinotropic Peptide (GIP) and Total Peptide Tyrosine-tyrosine (PYY) and AUC 0-13 and iAUC 0-13 of InsulinGlucagon, AUC 0-127.44 Pico moles per LiterGeometric Coefficient of Variation 37.297
95% CI: [-479.74, 379.94]
95% CI: [-507.32, 384.04]
95% CI: [-530.07, 358.37]
95% CI: [-494.09, 291.25]
95% CI: [-340.32, 261.85]
95% CI: [-429.61, 194.74]
95% CI: [-433.14, 189.18]
95% CI: [-356.07, 194.03]
95% CI: [-8.08, 13.7]
95% CI: [-8.27, 14.32]
95% CI: [0.23, 22.74]
95% CI: [-17.04, 2.86]
95% CI: [-7.28, 12.28]
95% CI: [-6.61, 13.67]
95% CI: [-2.17, 18.04]
95% CI: [-15.99, 1.88]
95% CI: [-0.79, 0.76]
95% CI: [-0.78, 0.82]
95% CI: [-0.78, 0.85]
95% CI: [2.74, 4.17]
95% CI: [-0.78, 0.75]
95% CI: [-0.79, 0.8]
95% CI: [-0.79, 0.83]
95% CI: [2.69, 4.11]
95% CI: [-2.06, 2.17]
95% CI: [-1.97, 2.42]
95% CI: [-0.35, 4.02]
95% CI: [-3.56, 0.3]
95% CI: [-1.7, 1.86]
95% CI: [-1.56, 2.13]
95% CI: [-1.08, 2.6]
95% CI: [-2.96, 0.29]
95% CI: [-4.26, 6.18]
95% CI: [-2.56, 8.69]
95% CI: [-2.98, 8.01]
95% CI: [-5.56, 4.13]
95% CI: [-6.4, 0.67]
95% CI: [-4.68, 2.95]
95% CI: [-4.16, 3.29]
95% CI: [-4.86, 1.71]
95% CI: [-168.38, 118.9]
95% CI: [-161.16, 136.7]
95% CI: [-158.07, 138.81]
95% CI: [-198.15, 64.28]
95% CI: [-150.57, 78.48]
95% CI: [-141.27, 96.22]
95% CI: [-140.36, 96.36]
95% CI: [-170.95, 38.3]
95% CI: [-2.66, 14.62]
95% CI: [-0.05, 17.86]
95% CI: [5.39, 23.24]
95% CI: [-13.33, 2.45]
95% CI: [-1.87, 11.87]
95% CI: [-0.22, 14.03]
95% CI: [1.93, 16.14]
95% CI: [-12.67, -0.11]
Primary

Part A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of Glucose

Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-139.42 Millimoles per LiterGeometric Coefficient of Variation 16.011
Part A: PlaceboPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-248.72 Millimoles per LiterGeometric Coefficient of Variation 17.563
Part A: PlaceboPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-132.11 Millimoles per LiterGeometric Coefficient of Variation 32.518
Part A: PlaceboPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-241.18 Millimoles per LiterGeometric Coefficient of Variation 43.037
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-249.17 Millimoles per LiterGeometric Coefficient of Variation 22.684
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-241.04 Millimoles per LiterGeometric Coefficient of Variation 96.395
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-139.44 Millimoles per LiterGeometric Coefficient of Variation 24.357
Part A: GSK1292263 25 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-131.35 Millimoles per LiterGeometric Coefficient of Variation 62.815
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-131.48 Millimoles per LiterGeometric Coefficient of Variation 59.021
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-139.15 Millimoles per LiterGeometric Coefficient of Variation 21.389
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-241.44 Millimoles per LiterGeometric Coefficient of Variation 137.548
Part A: GSK1292263 150 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-249.03 Millimoles per LiterGeometric Coefficient of Variation 20.928
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-138.64 Millimoles per LiterGeometric Coefficient of Variation 20.241
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-131.78 Millimoles per LiterGeometric Coefficient of Variation 64.653
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-248.67 Millimoles per LiterGeometric Coefficient of Variation 18.128
Part A: GSK1292263 800 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-240.90 Millimoles per LiterGeometric Coefficient of Variation 141.078
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-248.95 Millimoles per LiterGeometric Coefficient of Variation 33.715
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-131.48 Millimoles per LiterGeometric Coefficient of Variation 97.908
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseiAUC 0-240.53 Millimoles per LiterGeometric Coefficient of Variation 188.368
Part A: Sitagliptin 100 mgPart A: Summary of the AUC 0-13, AUC 0-24, Incremental AUC (iAUC) 0-13 and iAUC 0-24 of GlucoseAUC 0-139.23 Millimoles per LiterGeometric Coefficient of Variation 39.431
95% CI: [-1.8, 2.33]
95% CI: [-1.53, 2.76]
95% CI: [-1.64, 2.54]
95% CI: [-1.39, 2.33]
95% CI: [-2.53, 1.95]
95% CI: [-2.35, 2.3]
95% CI: [-2.48, 2.15]
95% CI: [-1.88, 2.21]
95% CI: [-1.58, 0.87]
95% CI: [-1.41, 1.13]
95% CI: [-1.36, 1.18]
95% CI: [-1.33, 0.91]
95% CI: [-1.68, 0.68]
95% CI: [-1.24, 1.21]
95% CI: [-1.44, 0.95]
95% CI: [-1.72, 0.4]
Primary

Part A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of Insulin

Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, AUC 0-21207.17 Pico moles per LiterGeometric Coefficient of Variation 27.472
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, AUC 0-23.60 Pico moles per LiterGeometric Coefficient of Variation 41.288
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, AUC 0-24.45 Pico moles per LiterGeometric Coefficient of Variation 32.218
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, iAUC 0-22.65 Pico moles per LiterGeometric Coefficient of Variation 49.892
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, AUC 0-216.76 Pico moles per LiterGeometric Coefficient of Variation 23.007
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, AUC 0-229.73 Pico moles per LiterGeometric Coefficient of Variation 34.698
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, iAUC 0-3146.03 Pico moles per LiterGeometric Coefficient of Variation 52.193
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, iAUC 0-225.30 Pico moles per LiterGeometric Coefficient of Variation 36.096
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, iAUC 0-25.89 Pico moles per LiterGeometric Coefficient of Variation 62.399
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, AUC 0-3204.77 Pico moles per LiterGeometric Coefficient of Variation 46.353
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, AUC 0-22.12 Pico moles per LiterGeometric Coefficient of Variation 0.426
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, iAUC 0-2563.75 Pico moles per LiterGeometric Coefficient of Variation 46.497
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, iAUC 0-20.56 Pico moles per LiterGeometric Coefficient of Variation 448.254
Part A: PlaceboPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, iAUC 0-20.03 Pico moles per LiterGeometric Coefficient of Variation 331.662
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, iAUC 0-2NA Pico moles per Liter
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, AUC 0-22.12 Pico moles per LiterGeometric Coefficient of Variation 0
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, iAUC 0-231.50 Pico moles per LiterGeometric Coefficient of Variation 30.146
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, AUC 0-24.51 Pico moles per LiterGeometric Coefficient of Variation 36.731
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, iAUC 0-2676.24 Pico moles per LiterGeometric Coefficient of Variation 40.442
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, iAUC 0-21.66 Pico moles per LiterGeometric Coefficient of Variation 80.669
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, AUC 0-24.77 Pico moles per LiterGeometric Coefficient of Variation 40.537
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, AUC 0-21352.32 Pico moles per LiterGeometric Coefficient of Variation 28.098
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, AUC 0-219.30 Pico moles per LiterGeometric Coefficient of Variation 42.059
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, AUC 0-3230.91 Pico moles per LiterGeometric Coefficient of Variation 39.743
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, iAUC 0-20.24 Pico moles per LiterGeometric Coefficient of Variation -157.518
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, AUC 0-237.86 Pico moles per LiterGeometric Coefficient of Variation 26.719
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, iAUC 0-24.66 Pico moles per LiterGeometric Coefficient of Variation 95.556
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, iAUC 0-3156.32 Pico moles per LiterGeometric Coefficient of Variation 41.131
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, iAUC 0-20.18 Pico moles per LiterGeometric Coefficient of Variation 158.801
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, AUC 0-21357.81 Pico moles per LiterGeometric Coefficient of Variation 20.421
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, iAUC 0-2620.95 Pico moles per LiterGeometric Coefficient of Variation 41.762
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, AUC 0-234.82 Pico moles per LiterGeometric Coefficient of Variation 34.834
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, iAUC 0-229.27 Pico moles per LiterGeometric Coefficient of Variation 37.728
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, AUC 0-22.18 Pico moles per LiterGeometric Coefficient of Variation 4.606
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, AUC 0-25.02 Pico moles per LiterGeometric Coefficient of Variation 27.985
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, iAUC 0-22.40 Pico moles per LiterGeometric Coefficient of Variation 51.939
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, AUC 0-26.08 Pico moles per LiterGeometric Coefficient of Variation 39.006
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, iAUC 0-20.62 Pico moles per LiterGeometric Coefficient of Variation -157.616
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, AUC 0-3235.88 Pico moles per LiterGeometric Coefficient of Variation 42.743
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, iAUC 0-3161.05 Pico moles per LiterGeometric Coefficient of Variation 45.743
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, AUC 0-222.45 Pico moles per LiterGeometric Coefficient of Variation 39.164
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, iAUC 0-26.81 Pico moles per LiterGeometric Coefficient of Variation 74.605
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, iAUC 0-20.18 Pico moles per LiterGeometric Coefficient of Variation 331.662
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, AUC 0-24.49 Pico moles per LiterGeometric Coefficient of Variation 44.216
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, AUC 0-22.14 Pico moles per LiterGeometric Coefficient of Variation 2.54
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, iAUC 0-20.73 Pico moles per LiterGeometric Coefficient of Variation -122.368
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, iAUC 0-233.51 Pico moles per LiterGeometric Coefficient of Variation 29.808
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, AUC 0-21387.78 Pico moles per LiterGeometric Coefficient of Variation 25.473
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, AUC 0-3254.61 Pico moles per LiterGeometric Coefficient of Variation 50.81
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, AUC 0-242.25 Pico moles per LiterGeometric Coefficient of Variation 34.507
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, iAUC 0-3179.93 Pico moles per LiterGeometric Coefficient of Variation 58.35
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, iAUC 0-2695.31 Pico moles per LiterGeometric Coefficient of Variation 43.06
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, iAUC 0-25.59 Pico moles per LiterGeometric Coefficient of Variation 62.823
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, AUC 0-25.59 Pico moles per LiterGeometric Coefficient of Variation 37.459
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, AUC 0-223.42 Pico moles per LiterGeometric Coefficient of Variation 25.206
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, iAUC 0-22.38 Pico moles per LiterGeometric Coefficient of Variation 49.604
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, AUC 0-22.97 Pico moles per LiterGeometric Coefficient of Variation 34.891
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, iAUC 0-21.25 Pico moles per LiterGeometric Coefficient of Variation 162.044
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, AUC 0-23.85 Pico moles per LiterGeometric Coefficient of Variation 62.26
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, AUC 0-24.73 Pico moles per LiterGeometric Coefficient of Variation 22.23
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 total, iAUC 0-21.26 Pico moles per LiterGeometric Coefficient of Variation 63.785
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, AUC 0-21287.66 Pico moles per LiterGeometric Coefficient of Variation 34.527
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, iAUC 0-3150.33 Pico moles per LiterGeometric Coefficient of Variation 56.399
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGlucagon, iAUC 0-20.39 Pico moles per LiterGeometric Coefficient of Variation -121.494
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, iAUC 0-221.79 Pico moles per LiterGeometric Coefficient of Variation 45.161
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinC-peptide, iAUC 0-2692.11 Pico moles per LiterGeometric Coefficient of Variation 45.456
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGLP-1 active, iAUC 0-22.47 Pico moles per LiterGeometric Coefficient of Variation 38.584
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinPYY total, AUC 0-213.93 Pico moles per LiterGeometric Coefficient of Variation 35.971
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinInsulin, AUC 0-3213.17 Pico moles per LiterGeometric Coefficient of Variation 49.48
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-2) and iAUC(0-2)- C-peptide, Total GIP, GLP-1 (Active and Total), Glucagon and Total PYY and AUC 0-3 and iAUC 0-3 of InsulinGIP total, AUC 0-226.57 Pico moles per LiterGeometric Coefficient of Variation 40.429
95% CI: [-200.57, 506.49]
95% CI: [-252.69, 480.42]
95% CI: [-250.89, 479.83]
95% CI: [-186.32, 459.6]
95% CI: [-127.31, 454.55]
95% CI: [-243.57, 359.72]
95% CI: [-222.32, 379]
95% CI: [-108.73, 422.82]
95% CI: [-4.79, 17.87]
95% CI: [-7.65, 15.84]
95% CI: [1.33, 24.74]
95% CI: [-13.17, 7.52]
95% CI: [-3.47, 15.93]
95% CI: [-5.46, 14.65]
95% CI: [-0.54, 19.51]
95% CI: [-11.65, 6.08]
95% CI: [-0.38, 0.52]
95% CI: [-0.21, 0.72]
95% CI: [-0.42, 0.51]
95% CI: [2.28, 3.11]
95% CI: [-0.36, 0.5]
95% CI: [-0.2, 0.69]
95% CI: [-0.41, 0.47]
95% CI: [2.25, 3.04]
95% CI: [-1.44, 1.55]
95% CI: [-1.28, 1.82]
95% CI: [-0.65, 2.44]
95% CI: [-2.85, -0.12]
95% CI: [-1.18, 1.34]
95% CI: [-0.97, 1.63]
95% CI: [-1.48, 1.12]
95% CI: [-2.34, -0.04]
95% CI: [-1.51, 3.98]
95% CI: [0.04, 5.71]
95% CI: [-1.21, 4.16]
95% CI: [-2.2, 2.74]
95% CI: [-4.92, 0.56]
95% CI: [-4.74, 0.93]
95% CI: [-3.74, 1.63]
95% CI: [-3.72, 1.22]
95% CI: [-95.82, 122.59]
95% CI: [-103.25, 123.21]
95% CI: [-80.43, 145.28]
95% CI: [-76.77, 122.76]
95% CI: [-86.79, 90.97]
95% CI: [-92.47, 91.84]
95% CI: [-71.8, 111.91]
95% CI: [-57.59, 104.8]
95% CI: [-3.13, 10.14]
95% CI: [0.41, 14.18]
95% CI: [0.15, 13.87]
95% CI: [-8.62, 3.51]
95% CI: [-2.13, 7.17]
95% CI: [0.47, 10.12]
95% CI: [-3.08, 6.53]
95% CI: [-7.75, 0.74]
Primary

Part A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-Glucose

Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseAUC 0-312.82 Millimoles per LiterGeometric Coefficient of Variation 14.08
Part A: PlaceboPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseiAUC 0-35.55 Millimoles per LiterGeometric Coefficient of Variation 16.251
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseAUC 0-312.79 Millimoles per LiterGeometric Coefficient of Variation 18.904
Part A: GSK1292263 25 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseiAUC 0-35.17 Millimoles per LiterGeometric Coefficient of Variation 19.811
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseAUC 0-312.12 Millimoles per LiterGeometric Coefficient of Variation 16.572
Part A: GSK1292263 150 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseiAUC 0-34.78 Millimoles per LiterGeometric Coefficient of Variation 20.419
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseiAUC 0-34.25 Millimoles per LiterGeometric Coefficient of Variation 27.727
Part A: GSK1292263 800 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseAUC 0-311.26 Millimoles per LiterGeometric Coefficient of Variation 16.651
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseAUC 0-311.97 Millimoles per LiterGeometric Coefficient of Variation 25.95
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT AUC (0-3) and iAUC(0-3)-GlucoseiAUC 0-34.43 Millimoles per LiterGeometric Coefficient of Variation 28.677
95% CI: [-2.69, 1.56]
95% CI: [-3.05, 1.36]
95% CI: [-3.37, 1.02]
95% CI: [-2.56, 1.33]
95% CI: [-1.64, 0.39]
95% CI: [-2.01, 0.09]
95% CI: [-2.15, -0.06]
95% CI: [-1.91, -0.07]
Primary

Part A: Summary of the OGTT Derived Parameters: Disposition Index

Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated by multiplying insulin glucose index with insulin sensitivity index. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the OGTT Derived Parameters: Disposition Index0.87 [(µIU/mL)/(mg/deciliter [dL])]^2Geometric Coefficient of Variation 201.883
Part A: GSK1292263 25 mgPart A: Summary of the OGTT Derived Parameters: Disposition Index0.76 [(µIU/mL)/(mg/deciliter [dL])]^2Geometric Coefficient of Variation 65.975
Part A: GSK1292263 150 mgPart A: Summary of the OGTT Derived Parameters: Disposition Index1.07 [(µIU/mL)/(mg/deciliter [dL])]^2Geometric Coefficient of Variation 78.991
Part A: GSK1292263 800 mgPart A: Summary of the OGTT Derived Parameters: Disposition Index0.94 [(µIU/mL)/(mg/deciliter [dL])]^2Geometric Coefficient of Variation 62.371
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT Derived Parameters: Disposition Index0.86 [(µIU/mL)/(mg/deciliter [dL])]^2Geometric Coefficient of Variation 95.526
95% CI: [-0.84, 1.32]
95% CI: [-0.6, 1.64]
95% CI: [-1.17, 1.06]
95% CI: [-0.81, 1.16]
Primary

Part A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose Ratio

Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated as insulin/glucose ratio was calculated as insulin AUC(0-3\]/glucose AUC(0-3) during OGTT, while glucose/insulin ratio was calculated as glucose AUC(0-3)/insulin AUC(0-3) during OGTT. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioG/I ratio0.06 RatioGeometric Coefficient of Variation 60.128
Part A: PlaceboPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioI/G ratio15.98 RatioGeometric Coefficient of Variation 47.582
Part A: GSK1292263 25 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioG/I ratio0.06 RatioGeometric Coefficient of Variation 73.172
Part A: GSK1292263 25 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioI/G ratio18.05 RatioGeometric Coefficient of Variation 40.272
Part A: GSK1292263 150 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioG/I ratio0.05 RatioGeometric Coefficient of Variation 61.602
Part A: GSK1292263 150 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioI/G ratio19.46 RatioGeometric Coefficient of Variation 50.494
Part A: GSK1292263 800 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioI/G ratio22.61 RatioGeometric Coefficient of Variation 60.152
Part A: GSK1292263 800 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioG/I ratio0.04 RatioGeometric Coefficient of Variation 56.203
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioG/I ratio0.06 RatioGeometric Coefficient of Variation 154.204
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT Derived Parameters: Glucose/Insulin and Insulin/Glucose RatioI/G ratio17.80 RatioGeometric Coefficient of Variation 54.449
95% CI: [-0.08, 0.06]
95% CI: [-0.07, 0.07]
95% CI: [-0.07, 0.07]
95% CI: [-0.04, 0.08]
95% CI: [-8.31, 12.85]
95% CI: [-8.01, 13.93]
95% CI: [-4.88, 16.99]
95% CI: [-5.65, 13.68]
Primary

Part A: Summary of the OGTT Derived Parameters: Insulin Glucose Index

Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated as insulin (30 min) - insulin (0 min)/glucose (30 min) - glucose (0 min). It was calculated as insulin (30 min) - insulin (0 min)/glucose (30 min) - glucose (0 min). The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the OGTT Derived Parameters: Insulin Glucose Index0.23 µIU/mL/mg/dLGeometric Coefficient of Variation 144.722
Part A: GSK1292263 25 mgPart A: Summary of the OGTT Derived Parameters: Insulin Glucose Index0.22 µIU/mL/mg/dLGeometric Coefficient of Variation 54.34
Part A: GSK1292263 150 mgPart A: Summary of the OGTT Derived Parameters: Insulin Glucose Index0.28 µIU/mL/mg/dLGeometric Coefficient of Variation 67.645
Part A: GSK1292263 800 mgPart A: Summary of the OGTT Derived Parameters: Insulin Glucose Index0.26 µIU/mL/mg/dLGeometric Coefficient of Variation 64.622
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT Derived Parameters: Insulin Glucose Index0.21 µIU/mL/mg/dLGeometric Coefficient of Variation 75.325
95% CI: [-0.28, 0.22]
95% CI: [-0.2, 0.31]
95% CI: [-0.29, 0.23]
95% CI: [-0.27, 0.19]
Primary

Part A: Summary of the OGTT Derived Parameters: Insulin Sensitivity Index

Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. When this results in multiple samples at the same time point, only one sample was collected. It was calculated as 10,000/square root (\[mean plasma insulin × mean plasma glucose during OGTT or meal challenge\] × \[fasting plasma glucose × fasting plasma insulin\]). The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Up to Day 1 (24 hours)

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart A: Summary of the OGTT Derived Parameters: Insulin Sensitivity Index3.95 1/(mg/dL)×1/(µIU/mL)Geometric Coefficient of Variation 44.078
Part A: GSK1292263 25 mgPart A: Summary of the OGTT Derived Parameters: Insulin Sensitivity Index3.47 1/(mg/dL)×1/(µIU/mL)Geometric Coefficient of Variation 45.993
Part A: GSK1292263 150 mgPart A: Summary of the OGTT Derived Parameters: Insulin Sensitivity Index3.87 1/(mg/dL)×1/(µIU/mL)Geometric Coefficient of Variation 42.72
Part A: GSK1292263 800 mgPart A: Summary of the OGTT Derived Parameters: Insulin Sensitivity Index3.60 1/(mg/dL)×1/(µIU/mL)Geometric Coefficient of Variation 37.292
Part A: Sitagliptin 100 mgPart A: Summary of the OGTT Derived Parameters: Insulin Sensitivity Index4.01 1/(mg/dL)×1/(µIU/mL)Geometric Coefficient of Variation 47.046
95% CI: [-2.06, 1.37]
95% CI: [-1.82, 1.73]
95% CI: [-2.16, 1.38]
95% CI: [-1.43, 1.7]
Primary

Part A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)

The time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. Blood samples for the determination of PK was collected on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours.

Time frame: Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 14 and 24 hours on Day 1 of each treatment period

Population: Pharmacokinetic Population.

ArmMeasureGroupValue (MEDIAN)
Part A: PlaceboPart A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)T-lag0.50 Hour
Part A: PlaceboPart A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)T-max4.99 Hour
Part A: GSK1292263 25 mgPart A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)T-lag0.00 Hour
Part A: GSK1292263 25 mgPart A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)T-max3.00 Hour
Part A: GSK1292263 150 mgPart A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)T-lag0.00 Hour
Part A: GSK1292263 150 mgPart A: Summary of Time to Maximum Concentration (T-max) and Lag Time Before Observation of Drug Concentration in Sampled Matrix (T-lag)T-max3.00 Hour
Primary

Part C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCI

Clinical chemistry parameters included BUN, potassium, AST, total and direct bilirubin, creatinine, chloride, ALT, uric acid, glucose fasting, GGT, albumin, sodium, magnesium, phosphorus inorganic, calcium, total CO2, ALP, triglycerides, total cholesterol, LDL cholesterol, free fatty acid (NEFA), HDL cholesterol and total protein. It was assessed on Screening, Day -2 (can be non-fasting) and prior to breakfast (early in the morning, fasting) on Days 1, 7 and 14, and on Day 15 prior to checkout, (=24 hours post-dose) of each treatment period and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICalcium, Low1 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCISodium, Low0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High5 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIALT, High0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIAlbumin, Low1 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPotassium, Low0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, High1 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPhosphorus inorganic, Low0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCISodium, Low1 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIALT, High0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, High0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High1 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPhosphorus inorganic, Low0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICalcium, Low0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIAlbumin, Low0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPotassium, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, High0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIALT, High0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICalcium, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCISodium, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High4 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIAlbumin, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPotassium, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPhosphorus inorganic, Low0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIALT, High0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPhosphorus inorganic, Low0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, High0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High4 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPotassium, Low0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIAlbumin, Low0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICalcium, Low0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCISodium, Low0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPotassium, Low1 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low1 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIAlbumin, Low0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High3 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCISodium, Low0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICalcium, Low0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, High1 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPhosphorus inorganic, Low1 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIALT, High1 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPhosphorus inorganic, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIALT, High0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCISodium, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICalcium, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIAlbumin, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIGlucose, High3 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCIPotassium, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Clinical Chemistry Parameters of PCICO2, High1 Participants
Primary

Part C: Number of Participants With Abnormal Hematology Parameters of PCI

Hematology parameters included platelet count, RBC count, MCV, total neutrophils, WBC absolute, MCH, lymphocytes, MCHC, monocytes, hemoglobin, eosinophils, hematocrit, reticulocytes and basophils. It was assessed on Screening, Day -2 (can be non-fasting) and prior to breakfast (early in the morning, fasting) on Days 1, 7 and 14, and on Day 15 prior to checkout, (=24 hours post-dose) of each treatment period and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart C: Number of Participants With Abnormal Hematology Parameters of PCIHemoglobin, High0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Hematology Parameters of PCIHematocrit, High0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Hematology Parameters of PCITotal neutrophils, Low0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHemoglobin, High0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHematocrit, High0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCITotal neutrophils, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHemoglobin, High0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHematocrit, High0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCITotal neutrophils, Low0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHemoglobin, High2 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHematocrit, High1 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCITotal neutrophils, Low2 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHemoglobin, High0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHematocrit, High0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCITotal neutrophils, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHematocrit, High0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCITotal neutrophils, Low1 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Hematology Parameters of PCIHemoglobin, High2 Participants
Primary

Part C: Number of Participants With Abnormal Vital Signs of PCI

SBP, DBP and pulse rate measurements were recorded at each time point, assessment was performed after resting in a supine or semi-supine position for at least 10 minutes. Participants with abnormal clinically significant vital signs findings is presented. It was assessed on Screening, on Days -1 to 14 in a fasting state early in the morning (prior to morning dosing on days 1-14) and at Follow-up. On Days 1, 7, 13 and 14, it was also taken at 1, 3, 6, 9, 12 and 24 hours after the morning dose each treatment period and Follow-up (7 to 10 days after final discharge).

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart C: Number of Participants With Abnormal Vital Signs of PCISBP, High0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Vital Signs of PCISBP, Low0 Participants
Part A: PlaceboPart C: Number of Participants With Abnormal Vital Signs of PCIPulse rate, High0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, High0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, Low0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Abnormal Vital Signs of PCIPulse rate, High0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, High1 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, Low0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Abnormal Vital Signs of PCIPulse rate, High0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, High0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, Low1 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Abnormal Vital Signs of PCIPulse rate, High1 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, High2 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, Low0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Vital Signs of PCIPulse rate, High0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, Low0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Vital Signs of PCIPulse rate, High0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Abnormal Vital Signs of PCISBP, High0 Participants
Primary

Part C: Number of Participants With AEs and SAEs

An AE was defined as any untoward MO in a participant temporally associated with the use of a MP, whether or not considered related to the MP and can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition.

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart C: Number of Participants With AEs and SAEsAny AE4 Participants
Part A: PlaceboPart C: Number of Participants With AEs and SAEsAny SAE0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With AEs and SAEsAny AE5 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With AEs and SAEsAny SAE0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With AEs and SAEsAny AE1 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With AEs and SAEsAny SAE0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With AEs and SAEsAny AE4 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With AEs and SAEsAny SAE0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With AEs and SAEsAny AE4 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With AEs and SAEsAny SAE0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With AEs and SAEsAny AE2 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With AEs and SAEsAny SAE0 Participants
Primary

Part C: Number of Participants With Significant ECG Abnormalities

Twelve-lead ECGs was obtained in a supine position at each time point during the study using an ECG machine that automatically measured PR, QRS, QT and QTc intervals (QTcB and QTcF). Participants with abnormal clinically significant ECG findings is presented. It was assessed on Screening, on Day -1, 1, 7, 13 and 14 pre-breakfast dose (fasting) and at 1, 3, 6, 9, 12 and 24 hours of each treatment period and Follow-up (7 to 10 days after final discharge).

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart C: Number of Participants With Significant ECG Abnormalities0 Participants
Part A: GSK1292263 25 mgPart C: Number of Participants With Significant ECG Abnormalities0 Participants
Part A: GSK1292263 150 mgPart C: Number of Participants With Significant ECG Abnormalities0 Participants
Part A: GSK1292263 800 mgPart C: Number of Participants With Significant ECG Abnormalities0 Participants
Part A: Sitagliptin 100 mgPart C: Number of Participants With Significant ECG Abnormalities0 Participants
Part C: Sitagliptin 100 mgPart C: Number of Participants With Significant ECG Abnormalities0 Participants
Primary

Part C: Relationships Between GSK1292263 Drug Exposures and Insulin Sensitivity

Blood samples for the determination of insulin were collected fasting pre-breakfast and then pre-morning dose (PD time 0) on Days -1, 13 and 14, and then at 10, 20, 30, 60, 90, 120, 180 min after eating the standardized breakfast meal tolerance test. For lunch (approximately 4 hour post-morning dose) samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5, 2 and 3 hours. For the evening meal (approximately 10 hour post-morning dose), BID dosing groups followed the sequence of sampling, food and dosing as for breakfast (PD sample immediately before meal, eat and then dose), then 0.5, 1, 1.5, 2 and 3 hours post-dinner. A sample was also collected 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected (example: 24 hours post first-dose = pre-dose \[time 0\] for the second dose).

Time frame: Day -1, 13 and 14

Population: PK/PD Population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 135.6 mL/min×1/µIU×10^4Geometric Coefficient of Variation 64
Part A: PlaceboPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay -16.4 mL/min×1/µIU×10^4Geometric Coefficient of Variation 149
Part A: PlaceboPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 145.7 mL/min×1/µIU×10^4Geometric Coefficient of Variation 88
Part A: GSK1292263 25 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 138.6 mL/min×1/µIU×10^4Geometric Coefficient of Variation 50
Part A: GSK1292263 25 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay -19.8 mL/min×1/µIU×10^4Geometric Coefficient of Variation 100
Part A: GSK1292263 25 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 149.0 mL/min×1/µIU×10^4Geometric Coefficient of Variation 52
Part A: GSK1292263 150 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 138.7 mL/min×1/µIU×10^4Geometric Coefficient of Variation 99
Part A: GSK1292263 150 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay -19.2 mL/min×1/µIU×10^4Geometric Coefficient of Variation 80
Part A: GSK1292263 150 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 147.3 mL/min×1/µIU×10^4Geometric Coefficient of Variation 90
Part A: GSK1292263 800 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 137.2 mL/min×1/µIU×10^4Geometric Coefficient of Variation 72
Part A: GSK1292263 800 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay -18.0 mL/min×1/µIU×10^4Geometric Coefficient of Variation 96
Part A: GSK1292263 800 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 148.0 mL/min×1/µIU×10^4Geometric Coefficient of Variation 75
Part A: Sitagliptin 100 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay -16.6 mL/min×1/µIU×10^4Geometric Coefficient of Variation 79
Part A: Sitagliptin 100 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 146.8 mL/min×1/µIU×10^4Geometric Coefficient of Variation 91
Part A: Sitagliptin 100 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 136.6 mL/min×1/µIU×10^4Geometric Coefficient of Variation 59
Part C: Sitagliptin 100 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 145.7 mL/min×1/µIU×10^4Geometric Coefficient of Variation 124
Part C: Sitagliptin 100 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay 137.4 mL/min×1/µIU×10^4Geometric Coefficient of Variation 122
Part C: Sitagliptin 100 mgPart C: Relationships Between GSK1292263 Drug Exposures and Insulin SensitivityDay -17.0 mL/min×1/µIU×10^4Geometric Coefficient of Variation 107
Primary

Part C: Summary of Accumulation Ratio (Ro)

Ro was derived as follows: Ro = Day 13 (AUC0-24)/Day 1 (AUC0-24) for once daily dosing; Ro = Day 13 AM (AUC0-10)/Day 1 AM (AUC0-10) for BID dosing and Ro = Day 13 (AUC0-24)/Day 1 (AUC0-24) for BID dosing. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected. Data presented for Day 13 and Day 14.

Time frame: Days 1, 7, 13 and 14

Population: PK Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart C: Summary of Accumulation Ratio (Ro)Day 132.22 RatioGeometric Coefficient of Variation 21.131
Part A: PlaceboPart C: Summary of Accumulation Ratio (Ro)Day 142.29 RatioGeometric Coefficient of Variation 19.681
Part A: GSK1292263 25 mgPart C: Summary of Accumulation Ratio (Ro)Day 142.15 RatioGeometric Coefficient of Variation 20.319
Part A: GSK1292263 25 mgPart C: Summary of Accumulation Ratio (Ro)Day 132.17 RatioGeometric Coefficient of Variation 19.972
Part A: GSK1292263 150 mgPart C: Summary of Accumulation Ratio (Ro)Day 131.72 RatioGeometric Coefficient of Variation 31.647
Part A: GSK1292263 150 mgPart C: Summary of Accumulation Ratio (Ro)Day 141.77 RatioGeometric Coefficient of Variation 31.51
Part A: GSK1292263 800 mgPart C: Summary of Accumulation Ratio (Ro)Day 131.29 RatioGeometric Coefficient of Variation 40.69
Part A: GSK1292263 800 mgPart C: Summary of Accumulation Ratio (Ro)Day 141.39 RatioGeometric Coefficient of Variation 39.448
Primary

Part C: Summary of AUC0-10, AUC0-12 and AUC0-24

The AUC0-10, AUC0-12 and AUC0-24 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For QD and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post- breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: PK Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 11127.45 RatioGeometric Coefficient of Variation 10.341
Part A: PlaceboPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 137776.26 RatioGeometric Coefficient of Variation 23.727
Part A: PlaceboPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 13552.46 RatioGeometric Coefficient of Variation 15.595
Part A: PlaceboPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 133167.19 RatioGeometric Coefficient of Variation 21.745
Part A: PlaceboPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 148026.26 RatioGeometric Coefficient of Variation 22.275
Part A: PlaceboPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 143179.51 RatioGeometric Coefficient of Variation 22.197
Part A: PlaceboPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-12, Day 73559.59 RatioGeometric Coefficient of Variation 27.687
Part A: GSK1292263 25 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 1314463.50 RatioGeometric Coefficient of Variation 29.668
Part A: GSK1292263 25 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-12, Day 76413.05 RatioGeometric Coefficient of Variation 31.719
Part A: GSK1292263 25 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 145723.55 RatioGeometric Coefficient of Variation 32.728
Part A: GSK1292263 25 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 16439.56 RatioGeometric Coefficient of Variation 26.152
Part A: GSK1292263 25 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 1414356.75 RatioGeometric Coefficient of Variation 29.796
Part A: GSK1292263 25 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 135869.82 RatioGeometric Coefficient of Variation 32.289
Part A: GSK1292263 25 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 11868.87 RatioGeometric Coefficient of Variation 24.974
Part A: GSK1292263 150 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-12, Day 79965.14 RatioGeometric Coefficient of Variation 27.26
Part A: GSK1292263 150 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 13076.52 RatioGeometric Coefficient of Variation 23.023
Part A: GSK1292263 150 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 137332.26 RatioGeometric Coefficient of Variation 32.746
Part A: GSK1292263 150 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 147451.13 RatioGeometric Coefficient of Variation 37.067
Part A: GSK1292263 150 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 111078.97 RatioGeometric Coefficient of Variation 24.411
Part A: GSK1292263 150 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 1318682.34 RatioGeometric Coefficient of Variation 32.153
Part A: GSK1292263 150 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 1419134.61 RatioGeometric Coefficient of Variation 34.542
Part A: GSK1292263 800 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 145470.57 RatioGeometric Coefficient of Variation 23.708
Part A: GSK1292263 800 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 1410166.83 RatioGeometric Coefficient of Variation 26.747
Part A: GSK1292263 800 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 139388.93 RatioGeometric Coefficient of Variation 26.616
Part A: GSK1292263 800 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 135348.21 RatioGeometric Coefficient of Variation 22.627
Part A: GSK1292263 800 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-10, Day 14003.80 RatioGeometric Coefficient of Variation 27.722
Part A: GSK1292263 800 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-24, Day 17153.16 RatioGeometric Coefficient of Variation 34.663
Part A: GSK1292263 800 mgPart C: Summary of AUC0-10, AUC0-12 and AUC0-24AUC 0-12, Day 76268.95 RatioGeometric Coefficient of Variation 27.159
Primary

Part C: Summary of Change From Baseline in Fasted Glucose

Blood samples were collected fasting pre-breakfast and pre-morning dose (PD time 0) on Days -1, 13 and 14 and then at 10, 20, 30, 60, 90, 120, 180 min after eating the standardized breakfast meal tolerance test. For lunch (4 hour post-morning dose) samples were collected just before the meal and after starting each meal: 0.5, 1, 1.5, 2 and 3 hours. For the evening meal (10 hour post-morning dose), BID dosing groups followed the sequence of sampling, food and dosing as for breakfast (PD sample immediately before meal, eat and then dose), then 0.5, 1, 1.5, 2 and 3 hours post-dinner. A sample was also collected 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value minus post-Baseline value. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Baseline (Day 1 pre-dose) and Day -1, 13 and 14.

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 1 Hour4.60 Millimoles per LiterGeometric Coefficient of Variation 73.478
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 10 Hours2.07 Millimoles per LiterGeometric Coefficient of Variation 271.597
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 2 Hours4.71 Millimoles per LiterGeometric Coefficient of Variation 150.72
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted GlucoseDay 14, 24 Hours1.26 Millimoles per LiterGeometric Coefficient of Variation -1044.892
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 4 Hours1.85 Millimoles per LiterGeometric Coefficient of Variation -482.69
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 12 Hours3.66 Millimoles per LiterGeometric Coefficient of Variation 105.362
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 6 Hours4.98 Millimoles per LiterGeometric Coefficient of Variation 75.579
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 2 Hours3.65 Millimoles per LiterGeometric Coefficient of Variation 82.667
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 6 Hours3.72 Millimoles per LiterGeometric Coefficient of Variation 67.064
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 4 Hours1.11 Millimoles per LiterGeometric Coefficient of Variation -606.064
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 10 Hours1.91 Millimoles per LiterGeometric Coefficient of Variation 166.934
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 1 Hour4.93 Millimoles per LiterGeometric Coefficient of Variation 41.905
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 14, 24 Hours1.09 Millimoles per LiterGeometric Coefficient of Variation 3884.234
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 12 Hours2.42 Millimoles per LiterGeometric Coefficient of Variation 71.838
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 4 Hours1.13 Millimoles per LiterGeometric Coefficient of Variation 270.863
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 2 Hours5.00 Millimoles per LiterGeometric Coefficient of Variation 45.953
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 1 Hour7.39 Millimoles per LiterGeometric Coefficient of Variation 36.73
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 10 Hours3.18 Millimoles per LiterGeometric Coefficient of Variation 83.271
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 12 Hours4.41 Millimoles per LiterGeometric Coefficient of Variation 49.106
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 6 Hours6.16 Millimoles per LiterGeometric Coefficient of Variation 51.414
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 14, 24 Hours1.34 Millimoles per LiterGeometric Coefficient of Variation 179.562
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 6 Hours4.15 Millimoles per LiterGeometric Coefficient of Variation 74.614
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 1 Hour5.17 Millimoles per LiterGeometric Coefficient of Variation 57.754
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 2 Hours3.61 Millimoles per LiterGeometric Coefficient of Variation 75.258
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 4 Hours2.05 Millimoles per LiterGeometric Coefficient of Variation 685.731
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 10 Hours3.13 Millimoles per LiterGeometric Coefficient of Variation 133.236
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 12 Hours3.53 Millimoles per LiterGeometric Coefficient of Variation 82.377
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 14, 24 Hours1.21 Millimoles per LiterGeometric Coefficient of Variation 2819.22
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 4 Hours0.95 Millimoles per LiterGeometric Coefficient of Variation -223.367
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 2 Hours2.59 Millimoles per LiterGeometric Coefficient of Variation 60.658
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 14, 24 Hours1.52 Millimoles per LiterGeometric Coefficient of Variation 565.287
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 1 Hour5.51 Millimoles per LiterGeometric Coefficient of Variation 38.497
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 12 Hours3.77 Millimoles per LiterGeometric Coefficient of Variation 60.67
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 6 Hours3.93 Millimoles per LiterGeometric Coefficient of Variation 62.647
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 10 Hours2.06 Millimoles per LiterGeometric Coefficient of Variation 228.901
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 14, 24 Hours2.08 Millimoles per LiterGeometric Coefficient of Variation -323.555
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 10 Hours5.17 Millimoles per LiterGeometric Coefficient of Variation -1115.737
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 4 Hours2.13 Millimoles per LiterGeometric Coefficient of Variation -188.101
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 2 Hours3.17 Millimoles per LiterGeometric Coefficient of Variation 152.623
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 12 Hours3.33 Millimoles per LiterGeometric Coefficient of Variation 119.827
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 1 Hour4.09 Millimoles per LiterGeometric Coefficient of Variation 70.342
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted GlucoseDay 7, 6 Hours3.70 Millimoles per LiterGeometric Coefficient of Variation 270.326
95% CI: [-3.04, 2]
95% CI: [-3.07, 1.94]
95% CI: [-0.45, 4.57]
95% CI: [-2.19, 2.82]
95% CI: [-3.99, 1.02]
95% CI: [-3.27, 1.68]
95% CI: [-2.78, 2.15]
95% CI: [-0.03, 4.91]
95% CI: [-1.58, 3.34]
95% CI: [-3.69, 1.24]
95% CI: [-2.06, 2.03]
95% CI: [-1.56, 2.51]
95% CI: [-0.53, 3.55]
95% CI: [-0.8, 3.26]
95% CI: [-3.05, 1.02]
95% CI: [-3.05, 2.67]
95% CI: [-2.39, 3.3]
95% CI: [-0.14, 5.56]
95% CI: [-1.78, 3.91]
95% CI: [-5.55, 0.14]
95% CI: [-2.41, 2.7]
95% CI: [-2.09, 2.99]
95% CI: [-0.13, 4.96]
95% CI: [-1.47, 3.6]
95% CI: [-4.05, 1.03]
95% CI: [-4.2, 1.6]
95% CI: [-4.21, 1.56]
95% CI: [-1.89, 3.89]
95% CI: [-3.14, 2.62]
95% CI: [-3.4, 2.37]
95% CI: [-2.29, 1.26]
95% CI: [-1.99, 1.55]
95% CI: [-1.28, 2.28]
95% CI: [-1.98, 1.65]
95% CI: [-2.81, 0.73]
Primary

Part C: Summary of Change From Baseline in Fasted Insulin

Blood samples were collected fasting pre-breakfast and pre-morning dose (PD time 0) on Days -1, 13 and 14 and then at 10, 20, 30, 60, 90, 120, 180 min after eating the standardized breakfast meal tolerance test. For lunch (4 hour post-morning dose) samples were collected just before the meal and after starting each meal: 0.5, 1, 1.5, 2 and 3 hours. For the evening meal (10 hour post-morning dose), BID dosing groups followed the sequence of sampling, food and dosing as for breakfast (PD sample immediately before meal, eat and then dose), then 0.5, 1, 1.5, 2 and 3 hours post-dinner. A sample was also collected 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value minus post-Baseline value. The point estimates and corresponding 95% CI for treatment ratios were calculated for treatment comparisons versus placebo.

Time frame: Baseline (Day 1 pre-dose) and Day -1, 13 and 14

Population: The PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 1 Hour158.91 Millimoles per LiterGeometric Coefficient of Variation 115.808
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 10 Hours68.08 Millimoles per LiterGeometric Coefficient of Variation 129.341
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 2 Hours92.17 Millimoles per LiterGeometric Coefficient of Variation 99.479
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted InsulinDay 14, 24 Hours12.45 Millimoles per LiterGeometric Coefficient of Variation -180.869
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 4 Hours35.05 Millimoles per LiterGeometric Coefficient of Variation 650.532
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 12 Hours107.52 Millimoles per LiterGeometric Coefficient of Variation 77.742
Part A: PlaceboPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 6 Hours103.52 Millimoles per LiterGeometric Coefficient of Variation 76.383
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 2 Hours94.18 Millimoles per LiterGeometric Coefficient of Variation 55.907
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 6 Hours88.70 Millimoles per LiterGeometric Coefficient of Variation 70.484
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 4 Hours20.10 Millimoles per LiterGeometric Coefficient of Variation 354.147
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 10 Hours55.28 Millimoles per LiterGeometric Coefficient of Variation 131.603
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 1 Hour117.15 Millimoles per LiterGeometric Coefficient of Variation 53.056
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 14, 24 Hours1.51 Millimoles per LiterGeometric Coefficient of Variation -256.494
Part A: GSK1292263 25 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 12 Hours95.16 Millimoles per LiterGeometric Coefficient of Variation 69.323
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 4 Hours27.32 Millimoles per LiterGeometric Coefficient of Variation 97.622
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 2 Hours143.75 Millimoles per LiterGeometric Coefficient of Variation 108.953
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 1 Hour151.56 Millimoles per LiterGeometric Coefficient of Variation 88.163
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 10 Hours55.40 Millimoles per LiterGeometric Coefficient of Variation 86.768
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 12 Hours98.26 Millimoles per LiterGeometric Coefficient of Variation 140.843
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 6 Hours136.15 Millimoles per LiterGeometric Coefficient of Variation 92.906
Part A: GSK1292263 150 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 14, 24 Hours3.54 Millimoles per LiterGeometric Coefficient of Variation -116.769
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 6 Hours131.08 Millimoles per LiterGeometric Coefficient of Variation 84.834
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 1 Hour129.44 Millimoles per LiterGeometric Coefficient of Variation 101.186
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 2 Hours87.30 Millimoles per LiterGeometric Coefficient of Variation 145.016
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 4 Hours21.93 Millimoles per LiterGeometric Coefficient of Variation 337.965
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 10 Hours66.90 Millimoles per LiterGeometric Coefficient of Variation 162.22
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 12 Hours114.93 Millimoles per LiterGeometric Coefficient of Variation 81.742
Part A: GSK1292263 800 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 14, 24 Hours11.03 Millimoles per LiterGeometric Coefficient of Variation -226.913
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 4 Hours19.41 Millimoles per LiterGeometric Coefficient of Variation 150.506
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 2 Hours160.57 Millimoles per LiterGeometric Coefficient of Variation 123.482
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 14, 24 Hours7.87 Millimoles per LiterGeometric Coefficient of Variation -322.274
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 1 Hour216.95 Millimoles per LiterGeometric Coefficient of Variation 91.593
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 12 Hours138.42 Millimoles per LiterGeometric Coefficient of Variation 54.45
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 6 Hours142.10 Millimoles per LiterGeometric Coefficient of Variation 74.418
Part A: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 10 Hours64.04 Millimoles per LiterGeometric Coefficient of Variation 72.943
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 14, 24 Hours3.26 Millimoles per LiterGeometric Coefficient of Variation -191.1
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 10 Hours39.35 Millimoles per LiterGeometric Coefficient of Variation 76.204
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 4 Hours30.25 Millimoles per LiterGeometric Coefficient of Variation 169.388
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 2 Hours163.46 Millimoles per LiterGeometric Coefficient of Variation 80.53
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 12 Hours123.65 Millimoles per LiterGeometric Coefficient of Variation 74.446
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 1 Hour162.83 Millimoles per LiterGeometric Coefficient of Variation 62.028
Part C: Sitagliptin 100 mgPart C: Summary of Change From Baseline in Fasted InsulinDay 7, 6 Hours130.88 Millimoles per LiterGeometric Coefficient of Variation 48.541
95% CI: [-214.72, 73.8]
95% CI: [-295.98, -7.46]
95% CI: [-213.48, 75.25]
95% CI: [-248.72, 39.78]
95% CI: [-263.93, 27.01]
95% CI: [-264.78, 36.1]
95% CI: [-266.9, 33.98]
95% CI: [-154.75, 146.35]
95% CI: [-198.7, 102.16]
95% CI: [-202.31, 101.1]
95% CI: [-40.84, 26.38]
95% CI: [-38.63, 28.58]
95% CI: [-24.11, 43.16]
95% CI: [-36.22, 30.99]
95% CI: [-13.09, 54.69]
95% CI: [-156.11, 38.38]
95% CI: [-175.15, 19.35]
95% CI: [-69, 125.65]
95% CI: [-121.74, 72.74]
95% CI: [-157.82, 38.31]
95% CI: [-69.85, 69.4]
95% CI: [-77.28, 61.98]
95% CI: [-62.55, 76.85]
95% CI: [-36.89, 102.36]
95% CI: [-81.01, 61.49]
95% CI: [-123.36, 84.18]
95% CI: [-150.69, 56.85]
95% CI: [-79.16, 128.59]
95% CI: [-111.73, 95.8]
95% CI: [-103.08, 109.29]
95% CI: [-25.12, 4.89]
95% CI: [-23.71, 6.28]
95% CI: [-15.63, 14.38]
95% CI: [-27.78, 2.88]
95% CI: [-24.02, 6.66]
Primary

Part C: Summary of Plasma Cmax

The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: Pharmacokinetic Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_LEAST_SQUARES_MEAN)Dispersion
Part A: PlaceboPart C: Summary of Plasma CmaxDay 1219.36 Nanograms per millimeterGeometric Coefficient of Variation 14.14
Part A: PlaceboPart C: Summary of Plasma CmaxDay 7410.98 Nanograms per millimeterGeometric Coefficient of Variation 25.083
Part A: PlaceboPart C: Summary of Plasma CmaxDay 13433.12 Nanograms per millimeterGeometric Coefficient of Variation 20.372
Part A: PlaceboPart C: Summary of Plasma CmaxDay 14438.36 Nanograms per millimeterGeometric Coefficient of Variation 19.487
Part A: GSK1292263 25 mgPart C: Summary of Plasma CmaxDay 7715.01 Nanograms per millimeterGeometric Coefficient of Variation 26.989
Part A: GSK1292263 25 mgPart C: Summary of Plasma CmaxDay 13732.05 Nanograms per millimeterGeometric Coefficient of Variation 29.116
Part A: GSK1292263 25 mgPart C: Summary of Plasma CmaxDay 14715.71 Nanograms per millimeterGeometric Coefficient of Variation 30.769
Part A: GSK1292263 25 mgPart C: Summary of Plasma CmaxDay 1364.73 Nanograms per millimeterGeometric Coefficient of Variation 29.202
Part A: GSK1292263 150 mgPart C: Summary of Plasma CmaxDay 13969.19 Nanograms per millimeterGeometric Coefficient of Variation 31.059
Part A: GSK1292263 150 mgPart C: Summary of Plasma CmaxDay 71149.32 Nanograms per millimeterGeometric Coefficient of Variation 25.481
Part A: GSK1292263 150 mgPart C: Summary of Plasma CmaxDay 14950.52 Nanograms per millimeterGeometric Coefficient of Variation 35.046
Part A: GSK1292263 150 mgPart C: Summary of Plasma CmaxDay 1584.32 Nanograms per millimeterGeometric Coefficient of Variation 30.096
Part A: GSK1292263 800 mgPart C: Summary of Plasma CmaxDay 14772.89 Nanograms per millimeterGeometric Coefficient of Variation 23.019
Part A: GSK1292263 800 mgPart C: Summary of Plasma CmaxDay 7813.03 Nanograms per millimeterGeometric Coefficient of Variation 24.578
Part A: GSK1292263 800 mgPart C: Summary of Plasma CmaxDay 1721.18 Nanograms per millimeterGeometric Coefficient of Variation 23.346
Part A: GSK1292263 800 mgPart C: Summary of Plasma CmaxDay 13831.23 Nanograms per millimeterGeometric Coefficient of Variation 18.373
Primary

Part C: Summary of Time Invariance Ratio (Rs) of AUC0-10 for BID Dose of GSK1292263

The AUC0-10 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post-breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: PK Population. Only those participants available at the specified time points were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)
Part A: PlaceboPart C: Summary of Time Invariance Ratio (Rs) of AUC0-10 for BID Dose of GSK12922632.8174 Ratio
Part A: GSK1292263 25 mgPart C: Summary of Time Invariance Ratio (Rs) of AUC0-10 for BID Dose of GSK12922633.0033 Ratio
Part A: GSK1292263 150 mgPart C: Summary of Time Invariance Ratio (Rs) of AUC0-10 for BID Dose of GSK12922632.4218 Ratio
Primary

Part C: Summary of Time Invariance Ratio (Rs) of AUC0-24 for Once Daily Dose of GSK1292263

The AUC0-24 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post-breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: PK Population. Only those participants available at the specified time points were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)
Part A: PlaceboPart C: Summary of Time Invariance Ratio (Rs) of AUC0-24 for Once Daily Dose of GSK12922631.2871 Ratio
Primary

Part C: Summary of Time Invariance Ratio (Rs) of Cmax

The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (=post-breakfast), 1, 2, 4 (=pre lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected. Cmax for one participant from 50 BID x 14 day was not analyzed due to positive definite G Matrix.

Time frame: Days 1, 7, 13 and 14

Population: PK Population.

ArmMeasureValue (GEOMETRIC_LEAST_SQUARES_MEAN)
Part A: PlaceboPart C: Summary of Time Invariance Ratio (Rs) of Cmax1.9186 Ratio
Part A: GSK1292263 25 mgPart C: Summary of Time Invariance Ratio (Rs) of Cmax1.6755 Ratio
Part A: GSK1292263 150 mgPart C: Summary of Time Invariance Ratio (Rs) of Cmax1.1703 Ratio
Primary

Part C: Summary of T-max and T-lag

The time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (=immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: Pharmacokinetic Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (MEDIAN)
Part A: PlaceboPart C: Summary of T-max and T-lagT-max, Day 73.97 Hour
Part A: PlaceboPart C: Summary of T-max and T-lagT-lag, Day 10.00 Hour
Part A: PlaceboPart C: Summary of T-max and T-lagT-max, Day 133.97 Hour
Part A: PlaceboPart C: Summary of T-max and T-lagT-max, Day 14.00 Hour
Part A: PlaceboPart C: Summary of T-max and T-lagT-max, Day 144.01 Hour
Part A: GSK1292263 25 mgPart C: Summary of T-max and T-lagT-max, Day 73.97 Hour
Part A: GSK1292263 25 mgPart C: Summary of T-max and T-lagT-max, Day 112.00 Hour
Part A: GSK1292263 25 mgPart C: Summary of T-max and T-lagT-max, Day 133.98 Hour
Part A: GSK1292263 25 mgPart C: Summary of T-max and T-lagT-lag, Day 10.00 Hour
Part A: GSK1292263 25 mgPart C: Summary of T-max and T-lagT-max, Day 143.98 Hour
Part A: GSK1292263 150 mgPart C: Summary of T-max and T-lagT-lag, Day 10.00 Hour
Part A: GSK1292263 150 mgPart C: Summary of T-max and T-lagT-max, Day 112.00 Hour
Part A: GSK1292263 150 mgPart C: Summary of T-max and T-lagT-max, Day 73.97 Hour
Part A: GSK1292263 150 mgPart C: Summary of T-max and T-lagT-max, Day 133.97 Hour
Part A: GSK1292263 150 mgPart C: Summary of T-max and T-lagT-max, Day 143.98 Hour
Part A: GSK1292263 800 mgPart C: Summary of T-max and T-lagT-max, Day 133.97 Hour
Part A: GSK1292263 800 mgPart C: Summary of T-max and T-lagT-max, Day 13.97 Hour
Part A: GSK1292263 800 mgPart C: Summary of T-max and T-lagT-lag, Day 10.50 Hour
Part A: GSK1292263 800 mgPart C: Summary of T-max and T-lagT-max, Day 74.0 Hour
Part A: GSK1292263 800 mgPart C: Summary of T-max and T-lagT-max, Day 143.98 Hour
Secondary

Part B: Number of Participants With Abnormal Clinical Chemistry Parameters of PCI

Clinical chemistry parameters included BUN, potassium, AST, total and direct bilirubin, creatinine, chloride, ALT, uric acid, glucose fasting, GGT, albumin, sodium, magnesium, phosphorus inorganic, calcium, total CO2, ALP, triglycerides, total cholesterol, LDL cholesterol, free fatty acid (NEFA), HDL cholesterol and total protein. It was assessed on Screening, Day -1, 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters (Glucose, High) for which at least one value of PCI was reported are summarized. Null data is not presented.

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart B: Number of Participants With Abnormal Clinical Chemistry Parameters of PCI1 Participants
Part A: GSK1292263 25 mgPart B: Number of Participants With Abnormal Clinical Chemistry Parameters of PCI1 Participants
Secondary

Part B: Number of Participants With Abnormal Hematology Parameters of PCI

Hematology parameters included platelet count, RBC count, MCV, total neutrophils, WBC absolute, MCH, lymphocytes, MCHC, monocytes, hemoglobin, eosinophils, hematocrit, reticulocytes and basophils. It was assessed on Screening, Day -1, 2 (of each treatment period) and Follow-up (7 to 10 days after final discharge). Only those parameters for which at least one value of PCI was reported are summarized. Null data is not presented.

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart B: Number of Participants With Abnormal Hematology Parameters of PCI0 Participants
Part A: GSK1292263 25 mgPart B: Number of Participants With Abnormal Hematology Parameters of PCI0 Participants
Secondary

Part B: Number of Participants With Abnormal Vital Signs of PCI

SBP, DBP and pulse rate measurements were recorded at each time point, assessment was performed after resting in a supine or semi-supine position for at least 10 min. Participants with abnormal clinically significant vital signs findings is presented. It was assessed on Screening, Day -1, 1, 2 (pre-dose, 1, 3, 4, 6, 10, 16 and 24 hours of each treatment period) and Follow-up (7 -10 days after final discharge).

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart B: Number of Participants With Abnormal Vital Signs of PCI0 Participants
Part A: GSK1292263 25 mgPart B: Number of Participants With Abnormal Vital Signs of PCI0 Participants
Secondary

Part B: Number of Participants With AEs and SAEs

An AE was defined as any untoward MO in a participant temporally associated with the use of a MP, whether or not considered related to the MP and can therefore be any unfavourable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with its use. The SAE was any untoward MO that, at any dose, results in death, life threatening, persistent or significant disability/incapacity, results in or prolongs inpatient hospitalization, congenital abnormality or birth defect, that may not be immediately life-threatening or result in death or hospitalization but may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition.

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart B: Number of Participants With AEs and SAEsAny AE0 Participants
Part A: PlaceboPart B: Number of Participants With AEs and SAEsAny SAE0 Participants
Part A: GSK1292263 25 mgPart B: Number of Participants With AEs and SAEsAny AE1 Participants
Part A: GSK1292263 25 mgPart B: Number of Participants With AEs and SAEsAny SAE0 Participants
Secondary

Part B: Number of Participants With Significant ECG Abnormalities

Twelve-lead ECGs was obtained in a supine position at each time point during the study using an ECG machine that automatically measured PR, QRS, QT and QTc intervals (QTcB and QTcF). Participants with abnormal clinically significant ECG findings is presented. It was assessed on Screening, Day 1 at pre-dose, 1, 2, 3, 4, 6, 10, 16, 24 hours and Follow-up (7 -10 days after final discharge).

Time frame: Up to Week 7

Population: Safety Population.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Part A: PlaceboPart B: Number of Participants With Significant ECG Abnormalities0 Participants
Part A: GSK1292263 25 mgPart B: Number of Participants With Significant ECG Abnormalities0 Participants
Secondary

Part B: Summary of AUC0-t and AUC0-24

The AUC 0-24 and AUC 0-t determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours.

Time frame: Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours on Day 1 of each treatment period

Population: PK Population.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart B: Summary of AUC0-t and AUC0-24AUC 0-243370.43 Nanograms×hour per mLGeometric Coefficient of Variation 21.507
Part A: PlaceboPart B: Summary of AUC0-t and AUC0-24AUC 0-t3370.43 Nanograms×hour per mLGeometric Coefficient of Variation 21.507
Part A: GSK1292263 25 mgPart B: Summary of AUC0-t and AUC0-24AUC 0-2412639.84 Nanograms×hour per mLGeometric Coefficient of Variation 27.622
Part A: GSK1292263 25 mgPart B: Summary of AUC0-t and AUC0-24AUC 0-t12659.88 Nanograms×hour per mLGeometric Coefficient of Variation 27.391
Secondary

Part B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and Insulin

Blood samples for the determination of glucose and other PD markers were collected at pre-dose on Day 1 of each dosing period. For breakfast, lunch and evening meal in Part B, samples were collected just after the meal and at the following times after starting each meal: 0.5, 1 and 2 hours. Samples were also collected in Part B at 24 hours post-dose. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value from post-Baseline value.

Time frame: Baseline (Day 1 pre-dose) and Day 1 (24 hours)

Population: PD Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGLP-1 ACTIVE0.00 Pico moles per Liter
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGLUCAGON0.94 Pico moles per Liter
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGIP TOTAL2.23 Pico moles per LiterGeometric Coefficient of Variation 38.211
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinINSULIN31.18 Pico moles per LiterGeometric Coefficient of Variation 223.783
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGLP-1 TOTAL0.56 Pico moles per LiterGeometric Coefficient of Variation 384.9
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinPYY TOTAL3.05 Pico moles per LiterGeometric Coefficient of Variation 99.436
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinC-PEPTIDE13.44 Pico moles per LiterGeometric Coefficient of Variation 226.572
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinPYY TOTAL4.55 Pico moles per LiterGeometric Coefficient of Variation 181.246
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinC-PEPTIDE55.83 Pico moles per LiterGeometric Coefficient of Variation -507.439
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGIP TOTAL5.40 Pico moles per LiterGeometric Coefficient of Variation -165.542
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGLP-1 ACTIVE0.00 Pico moles per Liter
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGLP-1 TOTAL0.48 Pico moles per LiterGeometric Coefficient of Variation 66.682
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinGLUCAGON2.02 Pico moles per LiterGeometric Coefficient of Variation 72.451
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucagon, GLP-1, C-peptide, Total GIP, Total PYY and InsulinINSULIN7.19 Pico moles per LiterGeometric Coefficient of Variation 7682.607
Secondary

Part B: Summary of Change From Baseline in Fasted Glucose

Blood samples for the determination of glucose were collected at pre-dose on Day 1 of each dosing period and immediately prior to and at 10, 20, 30, 60, 90, 120, 180 min after administration of the 75 grams glucose drink. For lunch and evening meal in Part A, samples were collected just before the meal and at the following times after starting each meal: 0.5, 1, 1.5 (except breakfast in Part B), 2 and 3 hours. When this results in multiple samples at the same time point, only one sample was collected. Change from Baseline was calculated by subtracting Baseline value from post-Baseline value.

Time frame: Baseline (Day 1 pre-dose) and Day 1 (24 hours)

Population: The PD Population included participants from the Safety Population who had any PD parameter estimates from any portion of the study.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart B: Summary of Change From Baseline in Fasted Glucose0.40 Millimoles per LiterGeometric Coefficient of Variation 62.025
Part A: GSK1292263 25 mgPart B: Summary of Change From Baseline in Fasted Glucose1.95 Millimoles per LiterGeometric Coefficient of Variation -10966.01
Secondary

Part B: Summary of Plasma Cmax

The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours.

Time frame: Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours on Day 1 of each treatment period.

Population: PK Population.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart B: Summary of Plasma Cmax339.52 Nanograms per mLGeometric Coefficient of Variation 32.581
Part A: GSK1292263 25 mgPart B: Summary of Plasma Cmax944.21 Nanograms per mLGeometric Coefficient of Variation 47.33
Secondary

Part B: Summary of T-max and T-lag

The time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. Blood samples for the determination of PK was collected at on Day 1 of each period: immediately pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours.

Time frame: Pre-dose (time 0) and at 0.5, 1, 2, 3, 4, 6, 8, 13 and 24 hours on Day 1 of each treatment period

Population: PK Population.

ArmMeasureGroupValue (MEDIAN)
Part A: PlaceboPart B: Summary of T-max and T-lagT-max2.00 Hour
Part A: PlaceboPart B: Summary of T-max and T-lagT-lag0.00 Hour
Part A: GSK1292263 25 mgPart B: Summary of T-max and T-lagT-max4.98 Hour
Part A: GSK1292263 25 mgPart B: Summary of T-max and T-lagT-lag0.00 Hour
Secondary

Part C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administered

The AUC0-10, AUC0-12 and AUC0-24 determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post- breakfast), 1, 2, 4 (= pre lunch), 6, 10 (= immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: PK Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-24, Day 142701.81 Nanograms×hour per mLGeometric Coefficient of Variation 16.951
Part A: PlaceboPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-t, Day 142701.79 Nanograms×hour per mLGeometric Coefficient of Variation 16.955
Part A: GSK1292263 25 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-24, Day 142585.15 Nanograms×hour per mLGeometric Coefficient of Variation 18.942
Part A: GSK1292263 25 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-t, Day 142585.10 Nanograms×hour per mLGeometric Coefficient of Variation 18.944
Part A: GSK1292263 150 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-24, Day 143338.49 Nanograms×hour per mLGeometric Coefficient of Variation 25.396
Part A: GSK1292263 150 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-t, Day 143338.27 Nanograms×hour per mLGeometric Coefficient of Variation 25.407
Part A: GSK1292263 800 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-24, Day 143012.70 Nanograms×hour per mLGeometric Coefficient of Variation 19.602
Part A: GSK1292263 800 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-t, Day 143012.70 Nanograms×hour per mLGeometric Coefficient of Variation 19.602
Part A: Sitagliptin 100 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-24, Day 142437.10 Nanograms×hour per mLGeometric Coefficient of Variation 26.512
Part A: Sitagliptin 100 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-t, Day 142436.88 Nanograms×hour per mLGeometric Coefficient of Variation 26.52
Part C: Sitagliptin 100 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-24, Day 143027.99 Nanograms×hour per mLGeometric Coefficient of Variation 22.377
Part C: Sitagliptin 100 mgPart C: Summary of AUC0-24, AUC0-t of GSK1292263 and Sitagliptin When Co-administeredAUC 0-t, Day 143027.81 Nanograms×hour per mLGeometric Coefficient of Variation 22.388
Secondary

Part C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administered

The first occurrence of the maximum observed plasma concentration determined directly from the raw concentration-time data. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (= immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: PK Population. Only those participants available at the specified time points were analyzed.

ArmMeasureValue (GEOMETRIC_MEAN)Dispersion
Part A: PlaceboPart C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administered301.89 Nanograms per mLGeometric Coefficient of Variation 20.128
Part A: GSK1292263 25 mgPart C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administered284.59 Nanograms per mLGeometric Coefficient of Variation 20.569
Part A: GSK1292263 150 mgPart C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administered458.24 Nanograms per mLGeometric Coefficient of Variation 39.382
Part A: GSK1292263 800 mgPart C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administered378.12 Nanograms per mLGeometric Coefficient of Variation 30.39
Part A: Sitagliptin 100 mgPart C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administered307.45 Nanograms per mLGeometric Coefficient of Variation 31.323
Part C: Sitagliptin 100 mgPart C: Summary of Cmax of GSK1292263 and Sitagliptin When Co-administered360.91 Nanograms per mLGeometric Coefficient of Variation 26.831
Secondary

Part C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administered

The time at which Cmax was observed was determined directly from the raw concentration-time data. The lag time before observation of drug concentrations in sample matrix determined as the time of the sample preceding the first quantifiable concentration. When GSK1292263 was dosed once daily, blood samples were collected on Days 1, 13 and 14 immediately pre-dose (time 0) and at 0.5, 1, 1.5, 2, 3, 4, 6, 8, 14 and 24 hours post-dose. When GSK1292263 was dosed BID, blood samples were collected on Days 1, 13 and 14, at immediately pre-morning dose, 1,2, 4, 6, 8, 10, 11, 12, 14, 16, 18 and 24 hours post-morning dose. For once daily and BID dosing regimens on Day 7, blood samples were collected at pre-dose (= post-breakfast), 1, 2, 4 (= pre-lunch), 6, 10 (= immediately post-dinner) and 12 hours. When planned PK sampling results in multiple samples at the same time point, only one sample was collected.

Time frame: Days 1, 7, 13 and 14

Population: PK Population. Only those participants available at the specified time points were analyzed.

ArmMeasureGroupValue (MEDIAN)
Part A: PlaceboPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-half, Day 147.60 Hour
Part A: PlaceboPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-max, Day 142.00 Hour
Part A: GSK1292263 25 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-half, Day 147.24 Hour
Part A: GSK1292263 25 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-max, Day 142.00 Hour
Part A: GSK1292263 150 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-half, Day 147.38 Hour
Part A: GSK1292263 150 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-max, Day 142.00 Hour
Part A: GSK1292263 800 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-half, Day 147.22 Hour
Part A: GSK1292263 800 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-max, Day 142.00 Hour
Part A: Sitagliptin 100 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-half, Day 147.85 Hour
Part A: Sitagliptin 100 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-max, Day 142.00 Hour
Part C: Sitagliptin 100 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-half, Day 147.89 Hour
Part C: Sitagliptin 100 mgPart C: Summary of T-half and Tmax of GSK1292263 and Sitagliptin When Co-administeredT-max, Day 142.00 Hour

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026