| NCT ID | Title | Phase | Status | Enrollment | Velocity | Design | Start | Completion | Last Updated | Sites | Countries |
|---|---|---|---|---|---|---|---|---|---|---|---|
| NCT02202161 | A Study Investigating Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GSK2330672 Administered With Metformin to Type 2 Diabetes Patients | PHASE2 | COMPLETED | 70 | — | — | Aug 27, 2014 | Jan 30, 2015 | Nov 6, 2017 | 4 | United States |
| NCT01929863 | Study to Investigate Safety, Tolerability, Pharmacokinetics and Pharmacodynamics of GSK2330672 in Type 2 Diabetes Patients Taking Metformin | PHASE2 | COMPLETED | 16 | — | — | Aug 1, 2013 | Nov 21, 2013 | Aug 16, 2017 | 1 | United States |
| NCT01607385 | A Study to Evaluate the Safety, Tolerability, Pharmacokinetic a Single Day of Dosing With GSK1614235. | PHASE1 | COMPLETED | 56 | — | — | May 18, 2012 | Dec 3, 2012 | Jul 26, 2017 | 1 | United States |
| NCT01416324 | First Time in Human Study Using GSK2330672 | PHASE1 | COMPLETED | 17 | — | — | Jun 15, 2011 | Sep 9, 2011 | Jun 20, 2017 | 1 | United States |
The change from Baseline was calculated by subtracting the Baseline values from the individual post-Baseline values. Baseline was defined as pre-dose Day -1 value. It was assessed on Baseline, Day 7 and 14. Data for fasting and weighted mean (WM) AUC(0-24 hour) glucose is provided. Statistics for least square mean is provided and participants withdrawing early were excluded. Results were based on an analysis of covariance (ANCOVA) model: change from Baseline = Baseline + treatment.
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 and alanine aminotransferase (ALT) \>= 3× upper limit of normal (ULN) and total bilirubin \>=2 × ULN (\>35% direct) or ALT \>=3 × ULN and international normalized ratio \>1.5.
Hematology parameters included platelet, red blood cell (RBC) count, mean corpuscular volume (MCV), neutrophils, white blood cell (WBC) count (absolute), mean corpuscular hemoglobin (MCH), lymphocytes, mean corpuscular hemoglobin concentration (MCHC), monocytes, hemoglobin, eosinophils, hematocrit and basophils. It was assessed on Baseline (pre-dose Day -1), Day 7 and 15. Data for parameters with above and below the PCI is provided.
Clinical chemistry parameters included blood urea nitrogen (BUN), potassium, aspartate aminotransferase (AST), total bilirubin, direct bilirubin, creatinine, chloride, alanine aminotransferase (ALT), uric acid, fasting glucose, total carbon dioxide, gamma glutamyltransferase (GGT), albumin, sodium, calcium, alkaline phosphatase (ALP), total protein, total carbon dioxide and triglycerides. It was assessed on Baseline (pre-dose Day -1), Day 7 and 15. Data for parameters with above and below the PCI is provided. The normal range (NR) and PCI definition for abnormal parameters are: ALT (NR: 0-44, 0-32, 2-33; PCI: \>=2×upper limit of normal \[ULN\]); AST (NR: 0-40; PCI: \>=2× ULN) and total bilirubin (NR: 0.00-20.52; PCI: \>=1.5× ULN).
Urinalysis included urine occult blood: trace to 3+, glucose: negative to 3+, protein: negative to 2+ and ketones: trace to negative by dipstick and microscopic examination included cast, cellular cast, granular cast, hyaline cast (none seen to 1) and RBC: 0-2, 3-10, 11-30, \>30, WBC: none seen, 0-5, 1, 2, 4, \<5, 6-10, 11-30, 19, \>30). The plus sign increases with a higher level of occult blood, glucose, ketones, proteins, RBC, WBC in the urine: 1+: slightly positive, 2+: positive, 3+: high positive. Participants were categorized as none seen or 1 based on the absence or presence, respectively, of cast, cellular cast, granular cast and hyaline cast. Higher value indicates higher abnormality.
Data for mean specific gravity is provided. Specific gravity is a measure of the amount of material dissolved in the urine. Specific gravity is the ratio of the density (mass of a unit volume) of a substance to the density (mass of the same unit volume) of a reference substance. Normal urine has a specific gravity between 1.010 and 1.020.
Urine pH is an acid-base measurement. pH is measured on a numeric scale ranging from 0 to 14; values on the scale refer to the degree of alkalinity or acidity. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Normal urine has a slightly acid pH (5.0 - 6.0).
Single 12-lead ECGs was obtained at each time point during the study using an ECG machine that automatically calculates the heart rate and measures PR, QRS, QT, and QTc intervals. It was assessed on Baseline (pre-dose Day -1), Day 7 and 15. Participants with normal, abnormal not clinically significant and abnormal clinically significant ECG is presented.
The change from Baseline was calculated by subtracting the Baseline values from the individual post-Baseline values. Baseline was defined as pre-dose Day -1 value.
The change from Baseline was calculated by subtracting the Baseline values from the individual post-Baseline values. Baseline was defined as pre-dose Day -1 value.
The change from Baseline was calculated by subtracting the Baseline values from the individual post-Baseline values. Baseline was defined as pre-dose Day -1 value.
The site staff classified participant's stools and record the date and time of occurrence after any bowel movement that occurs while participants were in residence in the clinic. BSFS is scale between type 1-7, it measured the shape of the stool, type 1: separate hard lumps, like nuts; type 2: sausage shaped but lumpy; type 3: like a sausage or snake but with cracks on its surface; type 4: like a sausage or snake, smooth and soft; type 5: soft blobs with clear cut edges; type 6: fluffy pieces with ragged edges, a mushy stool and type 7: watery, no solid pieces. Participants were discharged after they have had at least one bowel movement after the Day 14 dosing and after the investigator/designee had reviewed the Day 15 end of study questions.
The site staff classified participant's stools and record the date and time of occurrence after any bowel movement that occurs while participants were in residence in the clinic. BSFS is scale between type 1-7, it measured the shape of the stool, type 1: separate hard lumps, like nuts; type 2: sausage shaped but lumpy; type 3: like a sausage or snake but with cracks on its surface; type 4: like a sausage or snake, smooth and soft; type 5: soft blobs with clear cut edges; type 6: fluffy pieces with ragged edges, a mushy stool and type 7: watery, no solid pieces. Participants were discharged after they have had at least one bowel movement after the Day 14 dosing and after the investigator/designee had reviewed the Day 15 end of study questions.
GSRS is a rating scale consisting of 15 items. Each item was scored from 1: no discomfort at all, 2: minor discomfort, 3: mild discomfort, 4: moderate discomfort, 5: moderately severe discomfort, 6: severe discomfort, 7: very severe discomfort. The overall GSRS score is the mean of these 15 items, varying from 1 to 7; a score of 1 indicates that no symptoms are present, and a score of 7 indicates the worst possible degree of all symptoms. A higher score relative to Baseline indicates worsening of severity. There were 5 defined syndrome scores and 1 overall score that was derived by computing the mean of the scores for specific subsets of questions as indicated below: abdominal pain (1, 4, 5); reflux syndrome (2, 3); diarrhea syndrome (11, 12, 14); indigestion syndrome (6, 7, 8, 9); constipation syndrome (10, 13, 15) and overall GSRS (1-15). The data is presented for participants with worsening of symptoms in \>=2 levels.
Testing cards were provided to participants for assessments. Participants with abnormal not clinically significant and abnormal clinically significant is presented. The Day -1 sample was obtained any time starting Day -2 and prior to GSK2330672 dosing on Day 1. The Day 14 sample was collected any time after dosing on Day 14 and prior to discharge on Day 15.
An AE is defined as any untoward medical occurrence in a participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect, may jeopardize the participant or may require medical or surgical intervention to prevent one of the other outcomes listed in this definition, associated with liver injury and impaired liver function defined as alanine aminotransferase (ALT) \>=3 x upper limit of normal (ULN), and total bilirubin \>=2 x ULN or international normalized ratio \>1.5.
The assessments were done at Day -1, Day 3, Day 8 and Follow-up under fasting condition. The following laboratory parameters of clinical chemistry were analyzed: blood urea nitrogen (BUN), creatinine, fasting triglycerides (TGs), total cholesterol, low-density lipoprotein cholesterol (LDLc), high-density lipoprotein cholesterol (HDLc), sodium, potassium, chloride, total bicarbonate, calcium, aspartate aminotransferase (AST), ALT, gamma glutamyltransferase (GGT), alkaline phosphatase, total and direct bilirubin, uric acid, albumin and total protein. Baseline was the assessment done on Day -1 (pre dose). Only those parameters for which at least one value of PCI was reported are summarized. Data is reported for participants with high glucose PCI, where the PCI value for T2DM participants was ( low \< 3.8857 millimole per liter (mmol/L); high \> 15 mmol/L; normal range was 3.61 - 5.5 mmol/L).
The assessments were done at Day -1, Day 3, Day 8 and Follow-up under fasting condition. The following laboratory parameters of clinical haematology were analyzed: platelet count, red blood cells (RBC) count, absolute white blood cells (WBC) count, reticulocyte count, hemoglobin, hematocrit, mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), neutrophils, lymphocytes, monocytes, eosinophils and basophils. Baseline was the assessment done on Day -1 (pre dose). Only those parameters for which at least one value of PCI was reported are summarized. Data is reported for participants with high WBC counts PCI, where the PCI value for T2DM participants was (relative low : 0.5 multiplier of lower limit of normal \[LLN\]; relative high : 1.82 multiplier of upper limit of normal \[LLN\]; where normal range was 3.8 - 10.8 giga cells per liter (GI/L).
The assessments were done at Day -1, Day 3, Day 8 and Follow-up under fasting condition for microscopic analysis of bacteria, hyaline casts (semi-quantitive), RBC, squamous epithelial cells and WBC. Baseline was the assessment done on Day -1 (pre dose). The participants were categorized as 0-5, 6-10, 10-20, moderate, few and many. Only those parameters for which at least one value of these categories reported are summarized.
The assessments were done at Day -1, Day 3, Day 8 and Follow-up under fasting condition for urine dipstic analysis of occult blood, glucose, ketones and proteins. Baseline was the assessment done on Day -1 (pre dose). The participants were categorized with results of 1+, 2+, 3+ and trace. Only those parameters for which at least one value of these categories reported are summarized.
Urine specific gravity is a laboratory test that shows the concentration of all chemical particles in the urine. The assessments were done at Day -1, Day 3, Day 8 and Follow-up under fasting condition. Baseline was the assessment done on Day -1 (pre dose).
The assessment of fecal occult blood was done on Day 8. Stool sample was obtained any time after dosing on Day 7.
Vital signs assessment included heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure (DBP). Assessments were completed at pre morning dose on Day 1 (Baseline), Day 3, Day 8 (before discharge) and Follow-up. Criteria for vital sign values meeting PCI for Type 2 diabetes mellitus (T2DM) included: SBP \<85 and \>160 millimeters of mercury (mmHg), DBP \<45 and \>100 mmHg and HR \<40 and \>110 beats per minute (bpm). Only those parameters for which at least one value of PCI was reported are summarized.
12-lead ECG assessments were obtained pre-dose at Day 1, Day 3, Day 8 (before discharge) and Follow-up. The assessments were done using an ECG machine that automatically calculated the heart rate and measures PQ, QRS, QT, and QTc(B) intervals. Abnormal ECG findings (clinically significant or not clinically significant) were categorized. The abnormal PCI range for T2DM participants include QTc interval of \>450 to \<=480 milliseconds (msec) and increase from Baseline QTc interval of \> 30 to \<=60 msec, PR interval \<110 and \>220 msec and QRS interval \<75 and \>110 msec. ECG abnormalities were categorized as clinically significant or not clinically significant based on PCI criteria and judgment of the investigator. Baseline was defined as the mean of three replicate assessments at pre-dose on Day 1.
The BSFR Scale assessed stool quality using a 7-point scale, where 1=separate hard lumps like nuts (difficult to pass) and 7=watery, no solid pieces (entirely liquid). Bristol Stool Form Scale Rating: 1=separate hard lumps, like nuts, 2=sausage shaped but lumpy, 3=like a sausage or snake but with cracks on its surface, 4=like a sausage or snake, smooth and soft, 5=soft blobs with clear cut edges, 6=fluffy pieces with ragged edges, a mushy stool, 7=watery, no solid pieces. Data is reported for number of events in participants with each category of BSFR scale across Day 1 to 7 post morning dose.
The BSFR Scale assessed stool quality using a 7-point scale, where 1=separate hard lumps like nuts (difficult to pass) and 7 = watery, no solid pieces (entirely liquid). Bristol Stool Form Scale Rating: 1=separate hard lumps, like nuts, 2=sausage shaped but lumpy, 3=like a sausage or snake but with cracks on its surface, 4=like a sausage or snake, smooth and soft, 5=soft blobs with clear cut edges, 6=fluffy pieces with ragged edges, a mushy stool, 7=watery, no solid pieces. Data is reported for number of events in participants with each category of BSFR scale across Day 1 to 7 post morning dose.
The impact of gastrointestinal (GI) symptoms on health-related quality of life was assessed using the GSRS. The GSRS is a 15-item related to abdominal pain, reflux, indigestion, diarrhea and constipation syndromes, self-administered questionnaire that assesses the impact of gastrointestinal symptoms during the past week on a scale from 1 (no discomfort at all) to 7 (very severe discomfort). Overall GSRS is the mean of questions 1-15 and range from 1 to 7, with lower scores indicating a better quality of life with respect to gastrointestinal symptoms. Baseline was defined as the assessment done on Day -1. Change from baseline was calculated by subtracting the baseline (Day -1) values from the post-baseline value (Day 8).
Regular clinical chemistry and hematology panels.
Frequency of bowel movements and quality of stool samples.
Tolerability of possible gastic side effets.
frequency and absolute value change in heart rate, blood pressure, respiration rate relative to placebo
frequency of clinically significant changes in 12-lead ECG parameters relative to placebo
Changes in clinical chemistry, hematology, urinalysis results relative to placebo
Measure changes in FEV, FVC, FEF 25-75%, PEFR relative to placebo
Frequency and severity of adverse events relative to placebo
| Arm | Type | Description |
|---|---|---|
| GSK2330672 10 mg | EXPERIMENTAL | Subjects will receive metformin 850 mg BID for 13-15 days during the run in period followed by GSK2330672 10 mg BID for 14 days. |
| GSK2330672 20 mg | EXPERIMENTAL | Subjects will receive metformin 850 mg BID for 13-15 days during the run in period followed by GSK2330672 20 mg BID for 14 days. |
| GSK2330672 30 mg | EXPERIMENTAL | Subjects will receive metformin 850 mg BID for 13-15 days during the run in period followed by GSK2330672 30 mg BID for 14 days. |
| GSK2330672 90 mg | EXPERIMENTAL | Subjects will receive metformin 850 mg BID for 13-15 days during the run in period followed by GSK2330672 90 mg BID for 14 days. |
| GSK2330672-matched placebo | PLACEBO_COMPARATOR | Subjects will receive metformin 850 mg BID for 13-15 days during the run in period followed by matching placebo (of GSK2330672) BID for 14 days. |
| Sitagliptin 50 mg | ACTIVE_COMPARATOR | Subjects will receive metformin 850 mg BID for 13-15 days during the run in period followed by Sitagliptin 50 mg BID for 14 days. In this study, sitagliptin 50 mg BID will be provided as open-label (unblinded) study treatment. |
| Arm A | EXPERIMENTAL | Subjects will receive metformin 850 mg BID for 7 days, GSK2330672 45 mg BID on Days 1 and 2 and GSK2330672 90 mg BID on Days 3 to 7 in treatment period 1. Subjects will receive metformin 850 mg BID for 7 days, placebo (matching 45 mg GSK2330672) BID on Days 1 and 2 and placebo (matching 90 mg GSK2330672) BID on Days 3 to 7 in treatment period 2. Treatment periods will be separated by a washout period of 13 to 15 days in which subjects will continue metformin 850 mg BID only |
| Arm B | EXPERIMENTAL | Subjects will receive metformin 850 mg BID for 7 days, placebo (matching 45 mg GSK2330672) BID on Days 1 and 2 and placebo (matching 90 mg GSK2330672) BID on Days 3 to 7 in treatment period 1. Subjects will receive metformin 850 mg BID for 7 days, GSK2330672 45 mg BID on Days 1 and 2 and GSK2330672 90 mg BID on Days 3 to 7 in treatment period 2. Treatment periods will be separated by a washout period of 13 to 15 days in which subjects will continue metformin 850 mg BID only |
| GSK2330672 | ACTIVE_COMPARATOR | - |
| Placebo | PLACEBO_COMPARATOR | - |
| Name | Type | Description |
|---|---|---|
| GSK2330672 | DRUG | GSK2330672 will be available in 10 mg, 20 mg, 30 mg, and 90 mg oral solution to be administered BID for 14 days. Subjects are to drink contents of dosing bottle (45 ml) followed by 2 x 50 ml rinses of bottle and then an additional 95 ml water for a total volume of 240 ml consumed |
| Placebo | DRUG | Matching placebo will be available as oral solution to be administered for 14 days, BID. Subjects are to drink contents of dosing bottle (45 ml) followed by 2 x 50 ml rinses of bottle and then an additional 95 ml water for a total volume of 240 ml consumed |
| Sitagliptin | DRUG | Sitagliptin will be available as film-coated tablets Tablet of 50 mg to be administered orally, BID, for 14 days |
| Metformin | DRUG | Metformin will be available as 850 mg white to off-white, film-coated tablets; to be administered BID orally during run-in through Day 14 |
| GSK1614235 | DRUG | BID, co-dosed BID with last dosing day of active/placebo repeat doses |
| 0.1 mg GSK2330672 | DRUG | GSK2330672 is available as a white to almost white solid powder diluted in vehicle for oral administration. |
| 0.3 mg GSK2330672 | DRUG | GSK2330672 is available as a white to almost white solid powder diluted in vehicle for oral administration. |
| 1 mg GSK2330672 | DRUG | GSK2330672 is available as a white to almost white solid powder diluted in vehicle for oral administration. |
| 3 mg GSK2330672 | DRUG | GSK2330672 is available as a white to almost white solid powder diluted in vehicle for oral administration. |
| 10 mg GSK2330672 | DRUG | GSK2330672 is available as a white to almost white solid powder diluted in vehicle for oral administration. |
| 30 mg GSK2330672 | DRUG | GSK2330672 is available as a white to almost white solid powder diluted in vehicle for oral administration. |
| 60 mg GSK2330672 | DRUG | GSK2330672 is available as a white to almost white solid powder diluted in vehicle for oral administration. |
Inclusion Criteria: * Male or female between 30 and 64 years of age inclusive, at the time of signing the informed consent * Subjects with a diagnosis of T2DM for at least 3 months prior to screening, taking metformin for at least 4 weeks prior to screening, taking a metformin daily dose of\>= 1000...