Diabetes Mellitus, Type 2Phase 2NCT00937326
Clinical Study to Assess the Safety and Pharmacokinetics of SRT2104 in Type 2 Diabetic Human Subjects
A Phase 2 study testing SRT2104 in people with Diabetes Mellitus, Type 2, run by Sirtris, a GSK Company at 61 sites in 8 countries.
Trial summary
The primary purpose of this study is to determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days, and to characterize the pharmacokinetic profile of SRT2104 after a single dose and multiple administrations in type… Read more about this study
- Who is it for?
- Ages 30 to 70 years
- Conditions the study is for
- Diabetes Mellitus, Type 2
- What is being tested?
- SRT2104
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 227 participants
- Where
- 61 sitesin 8 countries
- Study dates
- 19 Aug 2009to 18 Sep 2010
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 30 to 70 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Subjects of any race and gender within the age range of 30 to 70 years.
- All female subjects must be of non-child-bearing potential. For the purposes of this study, this is defined as the subject being amenorrheic for at least 12 consecutive months, or at least 6 weeks post-surgical bilateral oophorectomy with or without hysterectomy, or women who underwent tubal ligation. Menopausal status will be confirmed by demonstrating levels of follicle stimulating hormone (FSH) 40 - 138 mIU/ml and oestradiol < 20 pg/ml at entry, unless this information is available in the subject's medical record. In the event a subject's menopause status has been clearly established (for example, the subject indicates she has been amenorrheic for 10 years), but FSH and/or oestradiol levels are not consistent with a post-menopausal condition, determination of subject eligibility will be at the discretion of the principal investigator following consultation with the sponsor and medical monitor
- All male subjects must agree with their partners to use double-barrier birth control or abstinence while participating in the study and for 12 weeks following the last dose of study drug.
- Willingness to provide written informed consent to participate in the study
- HbA1c ≥ 7.5 and ≤ 10.5
- Fasting glucose ≥ 160 and ≤ 240 mg/dL
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- Body Mass Index (BMI) ≥ 25.0 kg/m^2 and ≤ 40.0 kg/m^2
- On stable metformin medication for at least 3 months (≥ 1.0 g/day) prior to Screening
- No prior history of HIV 1 or 2
- Absence of disease markers for hepatitis B \& C virus
- Absence of significant disease or clinically significant abnormal laboratory values on the laboratory evaluations, medical history or physical examination during the screening; normal end organ function
- Have a normal 12-lead ECG or one with abnormality considered to be clinically insignificant
- Have a normal chest X-ray (P. A. View) or one with abnormality considered to be clinically insignificant
- Comprehension of the nature and purpose of the study and compliance with the requirement of the entire protocol
Who cannot join
- Any major illness in the past three months or any significant ongoing chronic medical illness not related to diabetes
- Renal or liver impairment, defined as serum creatinine level of ≥ 1.4 mg/dL for females and ≥ 1.5 mg/dL for males, and greater than two times the upper limit of normal for liver enzymes, respectively.
- History of or current gastro-intestinal diseases influencing drug absorption, except for appendectomy
- History, within 3 years, of drug abuse (including Benzodiazepines, opioids, amphetamine, cocaine, and THC)
- History of alcoholism (more than two years), moderate drinkers (more than three drinks per day) or having consumed alcohol within 48 hrs prior to dosing [one drink is equal to one unit of alcohol (one glass wine, half pint beer, one measure of spirit)]
- Participation in any clinical trial within the past three months
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- History of difficulty in donating blood or accessibility of veins in left or right arm
- Donation of blood (one unit or 350 ml) within three months prior to receiving the first dose of test material
- Use of any prescription drug therapy, with exception of any prescription medication administered at a stable dose for at least 6 weeks prior to Screening, provided the medication is not contraindicated by the metformin label
- Use of any alternate anti-diabetic therapy, except metformin, within three months of enrollment
Trial locations and contacts
61 sites in 8 countries.
61 sites in 8 countries
Russia16 sites
GSK Investigational Site
Barnaul, 656024
GSK Investigational Site
Kemerovo, 650061
GSK Investigational Site
Kemerovo, 650099
GSK Investigational Site
Moscow, 115 280
GSK Investigational Site
Moscow, 119881
GSK Investigational Site
Moscow, 121069
GSK Investigational Site
Moscow, 127486
GSK Investigational Site
Moscow, 129110
GSK Investigational Site
Novosibirsk, 630068
GSK Investigational Site
Novosibirsk, 630090
GSK Investigational Site
Rostov-on-Don, 344022
GSK Investigational Site
Saint Petersburg, 190103
GSK Investigational Site
Saint Petersburg, 194354
GSK Investigational Site
Tyumen, 625023
GSK Investigational Site
Ufa, 450071
GSK Investigational Site
Yaroslavl, 150062
Bulgaria9 sites
GSK Investigational Site
Byala, 7100
GSK Investigational Site
Dimitrovgrad, 6400
GSK Investigational Site
Haskovo, 6300
GSK Investigational Site
Pleven, 5800
GSK Investigational Site
Plovdiv, 4000
GSK Investigational Site
Plovdiv, 4002
GSK Investigational Site
Rousse, 7002
GSK Investigational Site
Sofia, 1407
GSK Investigational Site
Sofia, 1431
Poland9 sites
GSK Investigational Site
Cieszyn, 43-400
GSK Investigational Site
Lubin, 20-090
GSK Investigational Site
Lubin, 59-301
GSK Investigational Site
Puławy, 24-100
GSK Investigational Site
Radzymin, 05-250
GSK Investigational Site
Ruda Śląska, 41-709
GSK Investigational Site
Słupsk, 76-200
GSK Investigational Site
Tychy, 43-100
GSK Investigational Site
Warsaw, 04-141
Hungary7 sites
GSK Investigational Site
Balantonfured, 8230
GSK Investigational Site
Eger, 3300
GSK Investigational Site
Gyula, 5701
GSK Investigational Site
Kecskemét, 6000
GSK Investigational Site
Sopron, 9400
GSK Investigational Site
Szekszárd, 7100
GSK Investigational Site
Zalaegerszeg, 8900
Romania7 sites
GSK Investigational Site
Bacau, 600114
GSK Investigational Site
Brăila, 810249
GSK Investigational Site
Buzău, 120257
GSK Investigational Site
Constanța, 900591
GSK Investigational Site
Oradea, 410169
GSK Investigational Site
Ploieşti, 100097
GSK Investigational Site
Timișoara, 300456
Ukraine7 sites
GSK Investigational Site
Kharkiv, 61022
GSK Investigational Site
Mykolaiv, 54003
GSK Investigational Site
Simferopol, 95017
GSK Investigational Site
Ternopil, 46001
GSK Investigational Site
Vinnitsa, 21010
GSK Investigational Site
Zaporizhzhya, 69001
GSK Investigational Site
Zaporizhzhya, 69035
Estonia3 sites
GSK Investigational Site
Tallinn, 10138
GSK Investigational Site
Tallinn, 10617
GSK Investigational Site
Tallinn, 13419
United Kingdom3 sites
GSK Investigational Site
Birmingham, B9 5SS
GSK Investigational Site
London, SE 1 9RT
GSK Investigational Site
Newport, PO30 5TG
About this study
Official title: A Phase II, Randomized, Placebo-Controlled, Double-Blind, Multiple-Dose Clinical Study to Assess the Safety and Pharmacokinetics of SRT2104 in Type 2 Diabetic Human Subjects
The primary purpose of this study is to determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days, and to characterize the pharmacokinetic profile of SRT2104 after a single dose and multiple administrations in type 2 diabetic subjects.
The secondary purpose of this study is to determine the effect of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) when administered once daily for 28 consecutive days on fasting blood glucose and insulin and post-prandial blood glucose and insulin in type 2 diabetic subjects.
Read the detailed description
Study Objectives
Primary:
- To determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days.
- To characterize the pharmacokinetic profile of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) after a single dose and multiple administrations in type 2 diabetic subjects.
Secondary:
- To determine the effect of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) when administered once daily for 28 consecutive days on fasting blood glucose and insulin and post-prandial blood glucose and insulin in type 2 diabetic subjects.
Study Design:
Prospective, multi-center, clinical study of SRT2104 administered orally once daily for 28 consecutive days; randomized, placebo-controlled, double-blind, multiple-dose, inpatient/outpatient study to assess the safety and pharmacokinetics (PK) of SRT2104 in type 2 diabetic male and female subjects on an existing, stable, background metformin therapy. Approximately 225 subjects aged 30-70, who fulfill the inclusion/exclusion criteria, will be enrolled in this study to ensure completion of forty (40) evaluable subjects within each of five dosing groups. Subjects will be evenly randomized to receive SRT2104 at one of five doses, placebo (A), 0.25 g/day (B), 0.5 g/day (C), 1.0 g/day (D), or 2.0 g/day (E), once a day for 28 consecutive days, approximately 15 minutes following consumption of a standardized meal. Subjects will remain on a fixed dose of test material for all dosing days in the study.
Subjects will sign the informed consent form at the Screening Visit, and will undergo screening assessments over a 2-day period to verify eligibility for the study. If eligible and willing to participate, subjects will return to the clinic within 21 days of the Screening Visit to participate in the dosing phase of the study. Subjects will be randomized to receive SRT2104 or placebo, and will be required to stay overnight at the study center on Day -1 and Day 27 to gather required PK samples and to assess safety on Day 1 and Day 28 respectively. In addition, subjects will be asked to return to the study center on Days 2 and 29; for three interim weekly safety assessments (on Days 8, 15, 22); and for an End of Study safety assessment 7 days after they complete the 28-day dosing period. A follow-up safety call will be made to each subject 30 days following their final dose of SRT2104 or placebo.
- Conditions
- Diabetes Mellitus, Type 2
- Being tested
- SRT2104, Placebo
- Medical subject headings
- Diabetes Mellitus, Type 2
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SRT2104Drug
SRT2104 will be supplied as hard gelatin capsules, with each containing 250 mg.
PlaceboDrug
Placebo will be supplied as hard gelatin capsules, with each containing an appropriate amount of placebo.
| Study group | Role | What they receive |
|---|---|---|
| Placebo | Placebo comparator | The Placebo treatment group will be administered eight placebo capsules per day.
Placebo will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, approximately 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. Receives: Drug: Placebo |
| Arm1 - 0.25g | Active comparator | The 0.25g SRT2104 treatment group will be administered one SRT2104 capsules with 7 placebo capsules, for a total of 8 capsules per day.
0.25g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. Receives: Drug: SRT2104; Drug: Placebo |
| Arm2 - 0.5g | Active comparator | The 0.5g SRT2104 treatment group will be administered two SRT2104 capsules with 6 placebo capsules, for a total of 8 capsules per day.
0.5g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. Receives: Drug: SRT2104; Drug: Placebo |
| Arm3 - 1g | Active comparator | The 1g SRT2104 treatment group will be administered four SRT2104 capsules with four placebo capsules, for a total of 8 capsules per day.
1g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. Receives: Drug: SRT2104; Drug: Placebo |
| Arm4 - 2g | Active comparator | The 2g SRT2104 treatment group will be administered eight SRT2104 capsules per day.
2g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. Receives: Drug: SRT2104 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Number of Participants With Any Adverse Event (AE), Serious Adverse Event (SAE), AE Related to Study Medication, AE Leading to Discontinuation and Fatal AE of Death
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. AE's were classified as related to the study medication, based on the investigator's judgment.
Measured: Up to Follow-up (58 days)
Number of Participants With AE by Intensity of Mild, Moderate and Severe
Intensity for each AE was categorized as mild, moderate and severe. Mild was defined as awareness of sign or symptom, but easily tolerated; moderate was defined as discomfort enough to cause interference with normal daily activities; severe was defined as inability to perform normal daily activities.
Measured: Up to Follow-up (58 days)
Mean Change From Baseline in Weight Over Time
Participant's body weight was assessed in the beginning of the study (at Day 1) and at the end of the study (Day 28 and Day 35). The clinical staff was instructed to use calibrated scales for weight measurement. The same scale was used at the clinical site for all participants at each specified time point during the study. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Vital Sign Parameter of Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) Over Time
Vital sign assessment of SBP and DBP was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Measured: Baseline (Day 1, pre-dose) and up to Day 35
Change From Baseline in Vital Sign Parameter of Heart Rate (HR) Over Time
Vital sign assessment of HR was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Measured: Baseline (Day 1, pre-dose) and up to Day 35
Change From Baseline in Vital Sign Parameter of Respiratory Rate (RR) Over Time
Vital sign assessment of RR was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Measured: Baseline (Day 1, pre-dose) and up to Day 35
Change From Baseline in Vital Sign Parameter of Temperature Over Time
Vital sign assessment of temperature was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Measured: Baseline (Day 1, pre-dose) and up to Day 35
Change From Baseline in Electrocardiogram (ECG) Values Over Time
12-lead ECG was obtained in the rested state. Participants lied in supine position with ECG leads on for at least 5 minutes prior to ECG recording. The ECG was performed at Day 1 (pre-dose and post-dose), Day 8, Day 15, Day 22, Day 28 (pre-dose and pre-dose) and Day 35, and included the assessment of PR interval, QRS interval, QT interval and QTc interval. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1 [post-dose], Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1, pre-dose) and up to Day 35
Change From Baseline in Hematology Parameters of Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils, Platelet and White Blood Cell (WBC) Count Over Time
Assessment for basophils, eosinophils, lymphocytes, monocytes, neutrophils, platelet and white blood cell (WBC) count were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Hematology Parameter of Red Blood Cell (RBC) Count Over Time
Assessment for RBC count was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Hematology Parameter of Hematocrit Over Time
Assessment for hematocrit was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Hematology Parameter of Hemoglobin Over Time
Assessment for hemoglobin was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Hematology Parameter of Mean Corpuscular Hemoglobin Over Time
Assessment for mean corpuscular hemoglobin was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Hematology Parameter of Mean Corpuscular Hemoglobin Concentration Over Time
Assessment for mean corpuscular hemoglobin concentration was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Hematology Parameter of Mean Corpuscular Volume Over Time
Assessment for mean corpuscular volume was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Coagulation Parameters of Activated Partial Thromplastin Time (aPTT) and Prothrombin Time (PT) Over Time
Assessment for aPTT and PT were performed on Day 1, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.
Measured: Baseline (Day 1), Day 28 and Day 35
Change From Baseline in Coagulation Parameter of International Normalized Ratio Over Time
Assessment for international normalized ratio was performed on Day 1, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.
Measured: Baseline (Day 1), Day 28 and Day 35
Change From Baseline in Chemistry Parameters of Alanine Aminotransferase (ALT), Aspartate Aminotrasferase (AST), Alkaline Phosphatase (ALP), Creatinine Phosphokinase and Lactate Dehydrogenase (LDH) Over Time
Assessment for ALT, AST, ALP, creatinine phosphokinase and LDH were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Chemistry Parameter of Bicarbonate, Blood Urea Nitrogen (BUN), Calcium, Chloride, Magnesium, Phosphate, Potassium and Sodium Over Time
Assessment for bicarbonate, BUN, calcium, chloride, magnesium, phosphate, potassium and sodium were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Chemistry Parameter of Direct Bilirubin, Indirect Bilirubin, Serum Creatinine, Total Bilirubin and Uric Acid Over Time
Assessment for direct bilirubin, indirect bilirubin, serum creatinine, total bilirubin and uric acid were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Chemistry Parameter of Lipid Profile Over Time
Assessment for lipid profile was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. The parameters included high density lipoprotein (HDL), low density lipoprotein (LDL), total cholesterol and triglycerides. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Chemistry Parameter of Albumin and Total Protein Over Time
Assessment for albumin and total protein were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Urinalysis Parameter of Specific Gravity Over Time
Urinary specific gravity is a measure of the concentration of solutes in urine. It measures the ratio of urine density compared with water density and provides information on the kidney's ability to concentrate urine. The assessments were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Change From Baseline in Urinalysis Parameter of pH Over Time
Urinalysis parameter included urine pH. pH was calculated on a scale of 0 to 14, such that, the lower the number, more acidic the urine and higher the number, more alkaline the urine with 7 being neutral. The assessment was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Area Under Plasma Concentration Curve From Time 0 to Last Measurable Time Point (AUC 0-t), From Time 0 to Infinity (AUC 0-infinity) and From Time 0 to Trough Concentration (AUC 0-τ) of SRT2104 on Day 1 and Day 28
The pre-dose blood samples were collected within one hour prior to study medication administration. The post-dose blood samples were collected within 2 minutes of the scheduled time. AUC values reported in the analysis of AUC 0-infinity of Day 28 versus Day 1 included AUC 0-infinity on Day 1 and AUC 0-τ on Day 28. Participants fasted for at least 10 hour overnight on Day 1, 2 and 29. The AUC 0-t was determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. AUC0-infinity was estimated by linear trapezoidal rule and was sum of the AUC0-t and extrapolated to infinity by dividing the estimated last measurable plasma concentration by elimination rate constant lambda z. Where lambda z is the terminal phase rate constant estimated by linear regression analysis of the log10 transformed concentration-time data after each single dose. The AUC0-infinity was the sum of the estimated and extrapolated parts.
Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28)
Observed Maximum Plasma Concentration (Cmax) of SRT2104 at Day 1 and Day 28
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. On Day 1, Day 2 and Day 29, participants fasted for at least 10 hour overnight. The post-dose sample was collected within 2 minutes of the scheduled time. The first occurrence of the Cmax was determined directly from the raw concentration-time data.
Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Time to Cmax (Tmax) at Day 1 and Day 28
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. The time at which Cmax was observed was determined directly from the raw concentration-time data.
Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Terminal Elimination Half Life (T1/2) of SRT2104 at Day 1 and Day 28
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight. The t1/2 was obtained as the ratio of ln2/λz, where λz is the terminal phase rate constant estimated by linear regression analysis of the concentration-time data.
Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Apparent Total Clearance of SRT2104 From Plasma After Oral Administration (CL/F) on Day 1 and Day 28
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight.
Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Apparent Volume of Distribution After Oral Administration (Vd/F) at Day 1 and Day 28
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight.
Measured: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Secondary outcomes (15)
Mean Fasting Plasma Glucose (FPG) Levels Over Time
The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35.
Measured: Up to Day 35
Change From Baseline in FPG Levels Over Time
The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. Baseline was defined as the assessment done on Day 1. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Mean Fasting Plasma Insulin (FPI) Levels Over Time
The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35.
Measured: Up to Day 35
Change From Baseline in FPI Over Time
The assessments were done at Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35 weekly at central laboratory. Baseline was defined as the assessment done on Day 1. The analysis was reported for Day 8, Day 15, Day 22, Day 28 and Day 35. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Measured: Baseline (Day 1) and up to Day 35
Mean Post-prandial Glucose (PPG) and Post-prandial Insulin (PPI) Levels at Day 28
The assessment of PPG and PPI was performed on Day 28 at 30 minutes, 60 minutes and 2 hour after the participant consumed the standardized meal (morning breakfast).
Measured: Day 28
Change From Baseline in PPG and PPI Levels at Day 28
The assessment of PPG and PPI was performed at 30 minutes, 60 minutes and 2 hour after the participant consumed the standardized meal (morning breakfast) on Day 1 and Day 28. Baseline for PPG was defined as the assessment value of FPG done on Day 1 and Baseline for PPI was defined as the assessment value of FPI done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (30 min, 60 min and 2 h at Day 28) values.
Measured: Baseline (Day 1) and Day 28
Mean Glycosylated Hemoglobin A (HbA1c) Levels on Day 28
The sample for HbA1c assessment was collected on Day 28. HbA1c is used to show how well their diabetes is being controlled in participants with diabetes. The HbA1c test gives the average blood glucose levels over the pervious two to three months.
Measured: Day 28
Change From Baseline in HbA1c Levels at Day 28
HbA1c is used to show how well their diabetes is being controlled in participants with diabetes. The HbA1c test gives the average blood glucose levels over the pervious two to three months. The sample for HbA1c assessment was collected on Day 1 and Day 28. Baseline value was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.
Measured: Baseline (Day 1) and Day 28
AUC From Time 0 to 1 h (AUC 0-1) and AUC From Time 0 to 2 h (AUC 0-2) for PPG and PPI at Day 1 and Day 28
The assessment of PPG and PPI was performed at 30 minutes, 60 minnutes and 2 hour after the participant consumed the standardized meal (morning breakfast) on Day 1 and Day 28. AUC with respect to these time interval was calculated using the linear trapezoidal rule by the sum of the areas between each chronological pair of assessments (using observed times) for PPG and PPI.
Measured: Day 1 (30 minutes, 60 minutes and 2 hour) and Day 28 (30 minutes, 60 minutes and 2 hour)
Mean Fructosamine Levels at Day 1 and Day 28
Fructosamine (a glycated protein) level enables assessment of long-term glycemic control in participants with diabetes mellitus. The blood samples for fructosamine assessment was obtained at Day 1 and Day 28.
Measured: Day 1 and Day 28
Change From Baseline in Fructosamine Levels at Day 28
Fructosamine (a glycated protein) level enables assessment of long-term glycemic control in participants with diabetes mellitus. The blood samples for fructosamine assessment was obtained at Day 1 and Day 28. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.
Measured: Baseline (Day 1) and Day 28
Mean Homeostatic Model Assessment-insulin Resistance (HOMA-IR) at Day 1 and Day 28
HOMA-IR was derived from FPG and FPI as: FPI (micro units [mU]/mL)*FPG (mmol per liter) divided by 22.5. HOMA-IR was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28.
Measured: Day 1 and Day 28
Change From Baseline in HOMA-IR at Day 28
HOMA-IR was derived from FPG and FPI as: FPI (mU/mL)*FPG (mmol per liter) divided by 22.5. HOMA-IR was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.
Measured: Baseline (Day 1) and Day 28
Mean HOMA-percentage Cell Beta Function at Day 1 and Day 28
HOMA-percentage cell beta function was derived from FPG and FPI as: 20*FPI (mU/mL) divided by FPG (mmol per liter) minus 3.5. HOMA-percentage cell beta function was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28.
Measured: Day 1 and Day 28
Change From Baseline in HOMA-percentage of Beta Cell Function at Day 28
HOMA-percentage cell beta function was derived from FPG and FPI as: 20*FPI (mU/mL) divided by FPG (mmol per liter) minus 3.5. HOMA-percentage cell beta function was calculated from the Day 1 and Day 28 FPG and FPI values at Day 1 and Day 28. Baseline was defined as assessment done on Day 1. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28) value.
Measured: Baseline (Day 1) and Day 28
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted13 Jul 2009 (estimated)
- Study start19 Aug 2009
- Primary completion18 Sep 2010
- Study completion18 Sep 2010
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Diabetes Mellitus, Type 2Studies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 227 participants (actual)
Sponsor and investigators
- Lead sponsor
- Sirtris, a GSK Company
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- GlaxoSmithKline
- Responsible party
- Sponsor
- Investigators
- GSK Clinical Trials, Study director, GlaxoSmithKline
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00937326
- Sponsor's protocol ID
- 113160
- Status last verified
- Aug 2017
- First submitted
- 9 Jul 2009
- Last updated
- 13 Jul 2018
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- Individual data sharing
- Yes: Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.
Study at a glance
From the registry record, last updated by the sponsor on 13 Jul 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase II, Randomized, Placebo-Controlled, Double-Blind, Multiple-Dose Clinical Study to Assess the Safety and Pharmacokinetics of SRT2104 in Type 2 Diabetic Human Subjects
- ClinicalTrials.gov ID
- NCT00937326
- Acronym / sponsor ID
- 113160
- Conditions
- Diabetes Mellitus, Type 2
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 227 participants (actual)
- Lead sponsor
- Sirtris, a GSK CompanyIndustry (pharma, biotech, devices)
- Collaborators
- GlaxoSmithKline
- Study start
- 19 Aug 2009 (actual)
- Primary completion
- 18 Sep 2010 (actual)
- Study completion
- 18 Sep 2010 (actual)
- First posted
- 13 Jul 2009 (estimated)
- Results
- Posted 9 Apr 2018
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The primary purpose of this study is to determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days, and to characterize the pharmacokinetic profile of SRT2104 after a single dose and multiple administrations in type 2 diabetic subjects.
The secondary purpose of this study is to determine the effect of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) when administered once daily for 28 consecutive days on fasting blood glucose and insulin and post-prandial blood glucose and insulin in type 2 diabetic subjects.
Detailed description
Study Objectives
Primary:
- To determine the safety and tolerability of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) in type 2 diabetic subjects when administered once daily for 28 consecutive days.
- To characterize the pharmacokinetic profile of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) after a single dose and multiple administrations in type 2 diabetic subjects.
Secondary:
- To determine the effect of SRT2104 (0.25, 0.5, 1.0, and 2.0 g/day) when administered once daily for 28 consecutive days on fasting blood glucose and insulin and post-prandial blood glucose and insulin in type 2 diabetic subjects.
Study Design:
Prospective, multi-center, clinical study of SRT2104 administered orally once daily for 28 consecutive days; randomized, placebo-controlled, double-blind, multiple-dose, inpatient/outpatient study to assess the safety and pharmacokinetics (PK) of SRT2104 in type 2 diabetic male and female subjects on an existing, stable, background metformin therapy. Approximately 225 subjects aged 30-70, who fulfill the inclusion/exclusion criteria, will be enrolled in this study to ensure completion of forty (40) evaluable subjects within each of five dosing groups. Subjects will be evenly randomized to receive SRT2104 at one of five doses, placebo (A), 0.25 g/day (B), 0.5 g/day (C), 1.0 g/day (D), or 2.0 g/day (E), once a day for 28 consecutive days, approximately 15 minutes following consumption of a standardized meal. Subjects will remain on a fixed dose of test material for all dosing days in the study.
Subjects will sign the informed consent form at the Screening Visit, and will undergo screening assessments over a 2-day period to verify eligibility for the study. If eligible and willing to participate, subjects will return to the clinic within 21 days of the Screening Visit to participate in the dosing phase of the study. Subjects will be randomized to receive SRT2104 or placebo, and will be required to stay overnight at the study center on Day -1 and Day 27 to gather required PK samples and to assess safety on Day 1 and Day 28 respectively. In addition, subjects will be asked to return to the study center on Days 2 and 29; for three interim weekly safety assessments (on Days 8, 15, 22); and for an End of Study safety assessment 7 days after they complete the 28-day dosing period. A follow-up safety call will be made to each subject 30 days following their final dose of SRT2104 or placebo.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 5
| Arm | Type | Receives |
|---|---|---|
| Placebo | Placebo comparator | Drug: PlaceboThe Placebo treatment group will be administered eight placebo capsules per day. Placebo will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, approximately 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. |
| Arm1 - 0.25g | Active comparator | Drug: SRT2104, Drug: PlaceboThe 0.25g SRT2104 treatment group will be administered one SRT2104 capsules with 7 placebo capsules, for a total of 8 capsules per day. 0.25g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. |
| Arm2 - 0.5g | Active comparator | Drug: SRT2104, Drug: PlaceboThe 0.5g SRT2104 treatment group will be administered two SRT2104 capsules with 6 placebo capsules, for a total of 8 capsules per day. 0.5g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. |
| Arm3 - 1g | Active comparator | Drug: SRT2104, Drug: PlaceboThe 1g SRT2104 treatment group will be administered four SRT2104 capsules with four placebo capsules, for a total of 8 capsules per day. 1g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. |
| Arm4 - 2g | Active comparator | Drug: SRT2104The 2g SRT2104 treatment group will be administered eight SRT2104 capsules per day. 2g SRT2104 will be administered orally once daily for twenty-eight consecutive days. Dosing will take place at approximately the same time every morning, 15 minutes following consumption of a standardized meal and should be administered with approximately 1 to 2 glasses of water. |
Who may qualify
- Ages
- 30 to 70 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (14 listed)
- Subjects of any race and gender within the age range of 30 to 70 years.
- All female subjects must be of non-child-bearing potential. For the purposes of this study, this is defined as the subject being amenorrheic for at least 12 consecutive months, or at least 6 weeks post-surgical bilateral oophorectomy with or without hysterectomy, or women who underwent tubal ligation. Menopausal status will be confirmed by demonstrating levels of follicle stimulating hormone (FSH) 40 - 138 mIU/ml and oestradiol < 20 pg/ml at entry, unless this information is available in the subject's medical record. In the event a subject's menopause status has been clearly established (for example, the subject indicates she has been amenorrheic for 10 years), but FSH and/or oestradiol levels are not consistent with a post-menopausal condition, determination of subject eligibility will be at the discretion of the principal investigator following consultation with the sponsor and medical monitor
- All male subjects must agree with their partners to use double-barrier birth control or abstinence while participating in the study and for 12 weeks following the last dose of study drug.
- Willingness to provide written informed consent to participate in the study
- HbA1c ≥ 7.5 and ≤ 10.5
Key exclusion criteria (10 listed)
- Any major illness in the past three months or any significant ongoing chronic medical illness not related to diabetes
- Renal or liver impairment, defined as serum creatinine level of ≥ 1.4 mg/dL for females and ≥ 1.5 mg/dL for males, and greater than two times the upper limit of normal for liver enzymes, respectively.
- History of or current gastro-intestinal diseases influencing drug absorption, except for appendectomy
- History, within 3 years, of drug abuse (including Benzodiazepines, opioids, amphetamine, cocaine, and THC)
- History of alcoholism (more than two years), moderate drinkers (more than three drinks per day) or having consumed alcohol within 48 hrs prior to dosing [one drink is equal to one unit of alcohol (one glass wine, half pint beer, one measure of spirit)]
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SRT2104SRT2104 will be supplied as hard gelatin capsules, with each containing 250 mg. | Drug | Arm1 - 0.25g, Arm2 - 0.5g, Arm3 - 1g, Arm4 - 2g |
| PlaceboPlacebo will be supplied as hard gelatin capsules, with each containing an appropriate amount of placebo. | Drug | Arm1 - 0.25g, Arm2 - 0.5g, Arm3 - 1g, Placebo |
Primary outcome
Number of Participants With Any Adverse Event (AE), Serious Adverse Event (SAE), AE Related to Study Medication, AE Leading to Discontinuation and Fatal AE of Death
Time frame: Up to Follow-up (58 days)
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. AE's were classified as related to the study medication, based on the investigator's judgment.
Number of Participants With AE by Intensity of Mild, Moderate and Severe
Time frame: Up to Follow-up (58 days)
Intensity for each AE was categorized as mild, moderate and severe. Mild was defined as awareness of sign or symptom, but easily tolerated; moderate was defined as discomfort enough to cause interference with normal daily activities; severe was defined as inability to perform normal daily activities.
Mean Change From Baseline in Weight Over Time
Time frame: Baseline (Day 1) and up to Day 35
Participant's body weight was assessed in the beginning of the study (at Day 1) and at the end of the study (Day 28 and Day 35). The clinical staff was instructed to use calibrated scales for weight measurement. The same scale was used at the clinical site for all participants at each specified time point during the study. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.
Change From Baseline in Vital Sign Parameter of Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP) Over Time
Time frame: Baseline (Day 1, pre-dose) and up to Day 35
Vital sign assessment of SBP and DBP was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Change From Baseline in Vital Sign Parameter of Heart Rate (HR) Over Time
Time frame: Baseline (Day 1, pre-dose) and up to Day 35
Vital sign assessment of HR was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Change From Baseline in Vital Sign Parameter of Respiratory Rate (RR) Over Time
Time frame: Baseline (Day 1, pre-dose) and up to Day 35
Vital sign assessment of RR was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Change From Baseline in Vital Sign Parameter of Temperature Over Time
Time frame: Baseline (Day 1, pre-dose) and up to Day 35
Vital sign assessment of temperature was done at Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose), Day 2 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 8 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 15 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 22 (pre-dose, 5 minutes, 30 minutes and 1 hour post-dose), Day 27, Day 28 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hours, 3 hours, 4 hours, 8 hours, 12 hours and 24 hours post-dose) and Day 35. A window of plus or minus 5 minutes was allowed during the active treatment visit vital sign assessments. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1, Day 2, Day 8, Day 15, Day 22, Day 27, Day 28 and Day 35) values.
Change From Baseline in Electrocardiogram (ECG) Values Over Time
Time frame: Baseline (Day 1, pre-dose) and up to Day 35
12-lead ECG was obtained in the rested state. Participants lied in supine position with ECG leads on for at least 5 minutes prior to ECG recording. The ECG was performed at Day 1 (pre-dose and post-dose), Day 8, Day 15, Day 22, Day 28 (pre-dose and pre-dose) and Day 35, and included the assessment of PR interval, QRS interval, QT interval and QTc interval. Baseline was defined as the assessment done on Day 1 (pre-dose). The change from Baseline was calculated by subtracting the Baseline value (Day 1, pre-dose) from the individual post-Baseline (Day 1 [post-dose], Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Hematology Parameters of Basophils, Eosinophils, Lymphocytes, Monocytes, Neutrophils, Platelet and White Blood Cell (WBC) Count Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for basophils, eosinophils, lymphocytes, monocytes, neutrophils, platelet and white blood cell (WBC) count were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Hematology Parameter of Red Blood Cell (RBC) Count Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for RBC count was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Hematology Parameter of Hematocrit Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for hematocrit was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Hematology Parameter of Hemoglobin Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for hemoglobin was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Hematology Parameter of Mean Corpuscular Hemoglobin Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for mean corpuscular hemoglobin was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Hematology Parameter of Mean Corpuscular Hemoglobin Concentration Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for mean corpuscular hemoglobin concentration was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Hematology Parameter of Mean Corpuscular Volume Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for mean corpuscular volume was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Coagulation Parameters of Activated Partial Thromplastin Time (aPTT) and Prothrombin Time (PT) Over Time
Time frame: Baseline (Day 1), Day 28 and Day 35
Assessment for aPTT and PT were performed on Day 1, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.
Change From Baseline in Coagulation Parameter of International Normalized Ratio Over Time
Time frame: Baseline (Day 1), Day 28 and Day 35
Assessment for international normalized ratio was performed on Day 1, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 28 and Day 35) values.
Change From Baseline in Chemistry Parameters of Alanine Aminotransferase (ALT), Aspartate Aminotrasferase (AST), Alkaline Phosphatase (ALP), Creatinine Phosphokinase and Lactate Dehydrogenase (LDH) Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for ALT, AST, ALP, creatinine phosphokinase and LDH were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Chemistry Parameter of Bicarbonate, Blood Urea Nitrogen (BUN), Calcium, Chloride, Magnesium, Phosphate, Potassium and Sodium Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for bicarbonate, BUN, calcium, chloride, magnesium, phosphate, potassium and sodium were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Chemistry Parameter of Direct Bilirubin, Indirect Bilirubin, Serum Creatinine, Total Bilirubin and Uric Acid Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for direct bilirubin, indirect bilirubin, serum creatinine, total bilirubin and uric acid were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Chemistry Parameter of Lipid Profile Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for lipid profile was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. The parameters included high density lipoprotein (HDL), low density lipoprotein (LDL), total cholesterol and triglycerides. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Chemistry Parameter of Albumin and Total Protein Over Time
Time frame: Baseline (Day 1) and up to Day 35
Assessment for albumin and total protein were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Urinalysis Parameter of Specific Gravity Over Time
Time frame: Baseline (Day 1) and up to Day 35
Urinary specific gravity is a measure of the concentration of solutes in urine. It measures the ratio of urine density compared with water density and provides information on the kidney's ability to concentrate urine. The assessments were performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Change From Baseline in Urinalysis Parameter of pH Over Time
Time frame: Baseline (Day 1) and up to Day 35
Urinalysis parameter included urine pH. pH was calculated on a scale of 0 to 14, such that, the lower the number, more acidic the urine and higher the number, more alkaline the urine with 7 being neutral. The assessment was performed on Day 1, Day 8, Day 15, Day 22, Day 28 and Day 35. Baseline was defined as the assessment done on Day 1. The change from Baseline was calculated by subtracting the Baseline value (Day 1) from the individual post-Baseline (Day 8, Day 15, Day 22, Day 28 and Day 35) values.
Area Under Plasma Concentration Curve From Time 0 to Last Measurable Time Point (AUC 0-t), From Time 0 to Infinity (AUC 0-infinity) and From Time 0 to Trough Concentration (AUC 0-τ) of SRT2104 on Day 1 and Day 28
Time frame: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28)
The pre-dose blood samples were collected within one hour prior to study medication administration. The post-dose blood samples were collected within 2 minutes of the scheduled time. AUC values reported in the analysis of AUC 0-infinity of Day 28 versus Day 1 included AUC 0-infinity on Day 1 and AUC 0-τ on Day 28. Participants fasted for at least 10 hour overnight on Day 1, 2 and 29. The AUC 0-t was determined using the linear trapezoidal rule for increasing concentrations and the logarithmic trapezoidal rule for decreasing concentrations. AUC0-infinity was estimated by linear trapezoidal rule and was sum of the AUC0-t and extrapolated to infinity by dividing the estimated last measurable plasma concentration by elimination rate constant lambda z. Where lambda z is the terminal phase rate constant estimated by linear regression analysis of the log10 transformed concentration-time data after each single dose. The AUC0-infinity was the sum of the estimated and extrapolated parts.
Observed Maximum Plasma Concentration (Cmax) of SRT2104 at Day 1 and Day 28
Time frame: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. On Day 1, Day 2 and Day 29, participants fasted for at least 10 hour overnight. The post-dose sample was collected within 2 minutes of the scheduled time. The first occurrence of the Cmax was determined directly from the raw concentration-time data.
Time to Cmax (Tmax) at Day 1 and Day 28
Time frame: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. The time at which Cmax was observed was determined directly from the raw concentration-time data.
Terminal Elimination Half Life (T1/2) of SRT2104 at Day 1 and Day 28
Time frame: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight. The t1/2 was obtained as the ratio of ln2/λz, where λz is the terminal phase rate constant estimated by linear regression analysis of the concentration-time data.
Apparent Total Clearance of SRT2104 From Plasma After Oral Administration (CL/F) on Day 1 and Day 28
Time frame: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight.
Apparent Volume of Distribution After Oral Administration (Vd/F) at Day 1 and Day 28
Time frame: Day 1 (pre-dose, 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8, 15 and 22 (pre-dose), Day 28 (pre-dose, and 15 and 30 minutes, 1, 2, 3, 4, 8 and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose)
Blood samples were collected on Day 1 (pre-dose, 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose), Day 2 (24 hour post-Day 1 dose), Day 8 (pre-dose), Day 15 (pre-dose), Day 22 (pre-dose), Day 28 (pre-dose, and 15 minutes, 30 minutes, 1 hour, 2 hour, 3 hour, 4 hour, 8 hour and 12 hour post-dose) and Day 29 (24 hour post-Day 28 dose). The pre-dose sample was collected within one hour prior to study medication administration. The post-dose sample was collected within 2 minutes of the scheduled time. On Day 1 Day 2 and Day 29, participants fasted for at least 10 hour overnight.
15 secondary outcomes
Mean Fasting Plasma Glucose (FPG) Levels Over Time
Time frame: Up to Day 35
Change From Baseline in FPG Levels Over Time
Time frame: Baseline (Day 1) and up to Day 35
Mean Fasting Plasma Insulin (FPI) Levels Over Time
Time frame: Up to Day 35
Change From Baseline in FPI Over Time
Time frame: Baseline (Day 1) and up to Day 35
Mean Post-prandial Glucose (PPG) and Post-prandial Insulin (PPI) Levels at Day 28
Time frame: Day 28
Change From Baseline in PPG and PPI Levels at Day 28
Time frame: Baseline (Day 1) and Day 28
Mean Glycosylated Hemoglobin A (HbA1c) Levels on Day 28
Time frame: Day 28
Change From Baseline in HbA1c Levels at Day 28
Time frame: Baseline (Day 1) and Day 28
AUC From Time 0 to 1 h (AUC 0-1) and AUC From Time 0 to 2 h (AUC 0-2) for PPG and PPI at Day 1 and Day 28
Time frame: Day 1 (30 minutes, 60 minutes and 2 hour) and Day 28 (30 minutes, 60 minutes and 2 hour)
Mean Fructosamine Levels at Day 1 and Day 28
Time frame: Day 1 and Day 28
Change From Baseline in Fructosamine Levels at Day 28
Time frame: Baseline (Day 1) and Day 28
Mean Homeostatic Model Assessment-insulin Resistance (HOMA-IR) at Day 1 and Day 28
Time frame: Day 1 and Day 28
Change From Baseline in HOMA-IR at Day 28
Time frame: Baseline (Day 1) and Day 28
Mean HOMA-percentage Cell Beta Function at Day 1 and Day 28
Time frame: Day 1 and Day 28
Change From Baseline in HOMA-percentage of Beta Cell Function at Day 28
Time frame: Baseline (Day 1) and Day 28
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Jul 2018.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.Link provided by the sponsor.
- Individual participant dataSharing planned: Yes. Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
GSK Clinical Trials study director
GlaxoSmithKline
61 sites in 8 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing SRT2104 in people with Diabetes Mellitus, Type 2, run by Sirtris, a GSK Company at 61 sites in 8 countries.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 14 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 13 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 61 sites in Russia, Bulgaria, Poland, Hungary, Romania and 3 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 9 Apr 2018). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Number of Participants With Any Adverse Event (AE), Serious Adverse Event (SAE), AE Related to Study Medication, AE Leading to Discontinuation and Fatal AE of Death (time frame: Up to Follow-up (58 days)). The study lists 30 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jul 2018.